StorageWorks RW551 Service Manual

(RW551/RW552) Service Manual EK–MOL80–SV. B01 Digital Equipment Corporation Maynard, Massachusetts

The information in this document is subject to change without notice and should not be construed as a commitment by Digital Equipment Corporation. Digital Equipment Corporation assumes no responsibility for any errors that might appear in this document. The software described in this document is furnished under a license and may be used or copied only in accordance with the terms of such license. No responsibility is assumed for the use or reliability of software or equipment that is not supplied by Digital Equipment Corporation or its affiliated companies. The following are trademarks of Digital Equipment Corporation: the DIGITAL logo and StorageWorks. The following are third-party trademarks: Microsoft and MS-DOS are registered trademarks of Microsoft Corporation. Copyright © 1997 Digital Equipment Corporation. All rights reserved Reproduced with permission of the Hewlett-Packard Company Printed in U.S.A.

The Optical Drive Mechanism ...........................................................................1–3 Product Support .................................................................................................1–4 Product Matrix ...................................................................................................1–4 Characteristics ...................................................................................................1–4 2 Environmental/Installation/PM Environmental Requirements .............................................................................2–1 Primary Power/External Ground ........................................................................2–1 Clearance Requirements ....................................................................................2–1 Location Requirements ......................................................................................2–2 Responsibilities ..................................................................................................2–2 Checkout Procedure .........................................................................2–2 Unpacking & Taking the Jukebox Off the Pallet...............................2–3 Tools Required.................................................................................2–3 3 Product Configuration and Operation Connections to the RW551/RW552 Jukebox ......................................................3–1 Configuring and Operating the Jukebox..............................................................3–3 Connecting an Uninterruptable Power Supply (UPS) ..........................................3–3 Connecting the SCSI Cable to the Jukebox.................................................3–4 Connecting Power.......................................................................................3–5 Control Panel Operation......................................................................................3–6 Using Selection Buttons..............................................................................3–7 Understanding Display Window Messages..................................................3–7 Viewing and/or Setting SCSI Ids and Logical Unit Numbers (LUNs) ........3–8 Changing an Optical Drive SCSI Address.................................................3–13 Changing a Configuration Option .............................................................3–14 Loading an Optical Disk into the Jukebox.................................................3–17 Ejecting an Optical Disk from the Jukebox...............................................3–19 Setting a Security Code ............................................................................3–20 Moving or Shipping the Jukebox.......................................................................3–21

iv EK–MOL80–SV. B01 3 Product Configuration and Operation (continued) Moving the Jukebox a Short Distance .............................................................. 3–22 Shipping the Jukebox ..................................................................... 3–23 Host Configuration........................................................................................... 3–23 4 Troubleshooting and Diagnostics Operation / Installation Troubleshooting ............................................................ 4–1 Troubleshooting Using the Control Panel and Observation ........................ 4–1 The Autochanger Lists the First "Possibles" .............................................. 4–2 Evaluating Results of the Internal FRU Isolation ....................................... 4–2 Retrieving Performance Information ......................................................... 4–3 Getting Error Information through the SCSI Bus ....................................... 4–6 Diagnostics ................................................................................................ 4–7 Offline Diagnostics .................................................................................... 4–8 Recovery from Hardware Errors............................................................... 4–14 Running an Internal Test .......................................................................... 4–34 Optical Disk Cleaning ...................................................................................... 4–38 Using the Eject Tool to Remove a Disk from the Drive.................................... 4–40 5 Removal and Replacement Field–Replaceable Assemblies .......................................................................... 5–2 ESD Precautions ................................................................................................ 5–2 Tools Required .................................................................................................. 5–2 Disassembly/Reassembly Procedures (SCSI–Connect Version) .......................... 5–3 Service Access .......................................................................................... 5–4 Right and Left Lower Access Panels ......................................................... 5–4 Rear Access Panel ..................................................................................... 5–5 Front Left and Front Right Panels ............................................................. 5–6 Replacing the Power Supplies .................................................................5–11 Replacing the Mailslot Assembly............................................................. 5–12 Replacing the Control Panel Assembly ................................................... 5–13 Replacing an Optical Drive ..................................................................... 5–14 Replacing the Interposer PCA .................................................................5–16 Replacing a Cooling Fan ......................................................................... 5–16 Replacing the Picker ...............................................................................5–17 Removing/Replacing the Translate Frame ............................................... 5–21 Removing/Replacing the Encoder Strip ................................................... 5–27 Replacing the Vertical Motion Motor ...................................................... 5–28 Replacing the Vertical Motor Gear Box................................................... 5–30

Replacing the Controller PCA....................................................................5–35 ....................................................... Replacing the Internal SCSI Cable 5 Replacing the SCSI Interface PCA.............................................................5–38 Re–initializing the Jukebox Controller PCA RAM After Service ...............5–40 Field Replaceable Units (FRUs) in the Medium Library.............................5–42 Recommended Service Kits .......................................................................5–44 Miscellaneous ............................................................................................5–52 6 Theory of Operation Autochanger Robotics.........................................................................................6–2 Movements.......................................................................................6–2 The Autochanger Controller PCA .................................................................6–4 Interposer PCA ..............................................................................................6–6 Power Supplies .............................................................................................6–7 SCSI Repeater/Converter/LUN PCA .............................................................6–7 Picker .........................................................................................................6–10 Single–Picker Mode ................................................................................6–10 Dual–Picker Mode ...................................................................................6–10 Two–Move Exchange ..............................................................................6–10 Dual–Picker Exchange .............................................................................6–11 Quick Exchange.......................................................................................6–12 The Multi–function Optical Drive & Drive Controller ......................................6–13 Controller PCA ........................................................................................6–14 SCSI Controller........................................................................................6–14 Data Buffer ..............................................................................................6–14 Formatter/Sequencer ................................................................................6–14 Servo PCA ...............................................................................................6–14 DSP Microprocessor and Support/Servo Control Loops............................6–14 Read and Write Channel Electronics ........................................................6–15 Mechanism Assembly....................................................................................6–15 Loader Mechanism...................................................................................6–15 Optical Head ............................................................................................6–15 Optical Disk Layout and Error Correction.........................................................6–16 Disk Formats............................................................................................6–16 Controller.................................................................................................6–17 CPU .........................................................................................................6–17 Gate Array ...............................................................................................6–17

vi EK–MOL80–SV. B01 6 Theory of Operation (continued) DSP (Digital Signal Processor)....................................................................... 6–17 Read/Write Channel Electronics .............................................................. 6–17 Loading Motor......................................................................................... 6–18 Bias Magnet............................................................................................. 6–18 Optical Head............................................................................................ 6–18 Optical Disk Layout and Error Correction...................................................... 6–18 Disk Formats............................................................................................ 6–18 Optical Disk Layout................................................................................. 6–19 User Zone Layout .................................................................................... 6–19 650–Mbyte Disk and Spare Groups.......................................................... 6–20 1.3–Gbyte Disk User and Spare Groups ................................................... 6–20 2.6 Gbyte Disk User and Spare Groups .................................................... 6–20 Drive Defect Management................................................................................ 6–32 Slip Sparing Algorithm..................................................................................... 6–33 Replacement Sparing Algorithm....................................................................... 6–34 Error Thresholds...............................................................................................6–34 Diagnostic Strategy .......................................................................................... 6–35 Internal Autochanger Diagnostics ............................................................ 6–35 The SCSI Interface...................................................................................6–35 Single–Ended and Differential SCSI Interfaces ........................................ 6–36 SCSI Command Set.......................................................................................... 6–37 Appendix A Basic Supplies and Reorderable Parts Basic Supplies & Reorderable Parts................................................................... A–1 Related Documents............................................................................................ A–2 Figures 1–1 RW551 & RW552 Jukebox...................................................................... 1–1 2–1 Clearance Requirements........................................................................... 2–1 2–2 Installing the Ramp Onto the Pallet.......................................................... 2–3 3–1 Front Panel .............................................................................................. 3–1 3–2 Rear Panel (SCSI Connect) ..................................................................... 3–2 3–3 The Jukebox Control Panel....................................................................... 3–6 3–4 Control Panel Menu Tree ......................................................................... 3–9 4–1 The Autochanger Returns Suspect FRUs ................................................. 4–2 4–2 How Service Views the Suspect FRUs .................................................... 4–3 4–3 Information and Tests Through the SCSI Bus .......................................... 4–7 5–1 Right Lower Access Panel ....................................................................... 5–4

5–3 Center Cover Mounting Screw .................................................................5–6 5–4 Positioning the Control Display Before Removing the Panel ...................5–7 5–5 Accessing the Underside of the Control Panel ..........................................5–8 5–6 Disconnecting the Control Panel Cable ....................................................5–9 5–7 Removing the Front Right Panel ..............................................................5–9 5–8 Power Supplies ......................................................................................5–11 5–9 Power Test Points on the Interposer PCA ...............................................5–12 5–10 Accessing the Mailslot Assembly ..........................................................5–12 5–11 Control Panel Mounting Screws .............................................................5–13 5–12 Optical Drives–with Cables Connected ..................................................5–14 5–13 Optical Drives–with Cables Disconnected .............................................5–15 5–14 Optical Drive Mounting .........................................................................5–15 5–15 Interposer PCA ......................................................................................5–16 5–16 Cooling Fan ...........................................................................................5–17 5–17 Picker Umbilical Cable ..........................................................................5–17 5–18 Picker Translate Cable ...........................................................................5–18 5–19 Picker Translate Cable (stowed) ............................................................5–19 5–20 Stopping Vertical Motor Gear Box Motion ............................................5–19 5–21 Picker Capture Bracket Mounting ..........................................................5–20 5–22 Picker Capture Bracket ..........................................................................5–20 5–23 Rotating the Picker Assembly Out of the Translate Frame .....................5–21 5–24 Translate Frame Raised For Easier Access .............................................5–22 5–25 Stopping Vertical Motor Gear Box Motion ...........................................5–23 5–26 Encoder Strip Mounting Peg ..................................................................5–24 5–27 Picker Translate Frame Tensioners ........................................................5–25 5–28 Translate Frame Rear Tensioner Mount .................................................5–25 5–29 Translate Frame Tensioners Released ....................................................5–26 5–30 Retaining Peg On Lower End of the Encoder Strip .................................5–27 5–31 Encoder Strip Mounting Screw...............................................................5–28 5–32 Top Mount Of Encoder Strip ..................................................................5–28 5–33 Vertical Motion Motor............................................................................5–29 5–34 Slave Rope Tensioner Assembly.............................................................5–30 5–35 Pivoting the Tensioner Lever to Release Tension ...................................5–31 5–36 Taking the Drive Rope Off the Top Pulleys............................................5–32

viii EK–MOL80–SV. B01 Figures (continued) 5–37 Disconnecting the Drive Rope From a Tensioner ................................... 5–32 5–38 Two Ends of the Slave Rope In the Tensioner........................................ 5–33 5–39 Disconnecting the 3–Rope Coupler ........................................................ 5–33 5–40 Rear Side Of Vertical Motor Gear Box................................................... 5–34 5–41 The Rope and Pulley System.................................................................. 5–34 5–42 Positioning the Tensioner to Mount On Translate Frame........................ 5–35 5–43 Controller PCA–Cover On ..................................................................... 5–36 5–44 Controller PCA–Cover Off..................................................................... 5–36 5–45 Controller PCA–Cables Off.................................................................... 5–37 5–46 Interface/Power Distribution Assembly .................................................. 5–38 5–47 SCSI Converter/Repeater PCA; Power Distribution PCA(Below)........... 5–38 5–48 SCSI PCA Jumpers ................................................................................ 5–39 5–49 Jukebox Exploded View......................................................................... 5–47 5–50 Jukebox Power Harness.......................................................................... 5–49 5–51 Jukebox Pulley and Rope Diagram......................................................... 5–50 6–1 SCSI Command Translation for Autochanger Operation .......................... 6–2 6–2 Autochanger Controller PCA Block Diagram .......................................... 6–4 6–3 Interposer PCA ........................................................................................ 6–6 6–4 Power Supplies and Power–on Sequence ................................................. 6–7 6–5 SCSI Repeater/Converter/LUN PCA ....................................................... 6–8 6–6 Functional Diagram ............................................................................... 6–13 6–7 4X–Drive Functional Diagram .............................................................. 6–16 6–8 Optical Disk Layout............................................................................... 6–19 6–9 User Zone Layout for 650–Mbyte Media ............................................... 6–21 6–10 User Zone Layout for 1.3–GByte Media, g=1......................................... 6–22 6–11 User Zone Layout for 1.3–GByte, g=16 ................................................. 6–23 6–12 User Zone Layout for 2.6–Gbyte Media, 1,024 bytes/sector................... 6–24 6–13 User Zone Layout for 2.6–Gbyte Media, 512 bytes/sector...................... 6–25

1–2 Jukebox Capacities ....................................................................................1–3 1–3 RW551/RW552 Jukebox Matrix ................................................................1–4 3–1 UPS Power Requirements...........................................................................3–4 3–2 SCSI Cable Length Limitations ..................................................................3–5 3–3 Default SCSI and LUN Settings................................................................3–11 3–4 Default LUN Settings/LUN Settings if “DRVs ID” Address is Changed...3–11 3–5 Configuration Choices..............................................................................3–15 4–1 Information Logs .......................................................................................4–4 4–2 Operation Errors.........................................................................................4–9 4–3 Hardware Errors and Recovery Procedures ..............................................4–14 4–4 Micro–Move IDs .....................................................................................4–25 4–5 Available Internal Tests for the RW551 and RW552 ...............................4–34 5–1 List of Field Replaceable Units.................................................................5–42 5–2 Exchange Parts .........................................................................................5–44 5–3 Non-Exchange Parts .................................................................................5–45 5–4 Common Resource Parts...........................................................................5–52 6–1 Values for n and m for 1.3 Gbyte with g=16 (1,024 media) ......................6–26 6–2 Physical Revolution to Logical Track Layout ...........................................6–27 6–3 4X, 1,024 Bytes/Sector Disk Structure......................................................6–28 6–4 4X, 512 Bytes/Sector Disk Structure.........................................................6–29 6–5 Technical Comparisons of 1X, 2X, and 4X Optical Drives .......................6–31 6–6 Error Thresholds ......................................................................................6–35 A–1 Common Resource Parts............................................................................A–1 A–2 Related Documentation .............................................................................A–2 A–3 TIMA Documents......................................................................................A–3

guide revision levels, release dates, and reasons for the revisions. It also describes how the changes to affected pages are marked in the guide. Revision Level Date Summary of Changes EK–MOL80–SV. A01 December, 1996 First Edition EK–MOL80–SV. B01 November, 1997 Corrects table 5–1; adds table and exploded view of non-exchange parts.

This manual describes how to install, configure, and maintain medium optical disk library RW551/RW552. The manual also discusses the theory of operation of the library. Audience This manual supports trained service personnel for the medium optical disk library (also referred to as the “jukebox”) RW551/RW552. Document Organization This manual contains the following: Chapter 1: Product Information Provides general product information and lists important features and specifications. Chapter 2: Environmental/Installation/PM Describes disk jukebox environmental requirements and installation procedures. Chapter 3: Product Configuration and Operation Provides information about the operational control on the jukebox and how to use those controls to configure and operate the jukebox. Chapter 4: Troubleshooting and Diagnostics Contains troubleshooting information about the SCSI-connect. Chapter 5: Removal and Replacement Describes how to locate and replace sub-assemblies within the RW551/RW552 enclosure. It also contains a list of Field Replaceable Units (FRUs) and an exchange and non-exchange parts list with an accompanying exploded view of the library.

xiv EK–MOL80–SV. B01 Chapter 6: Theory of Operation Describes how the RW551/RW552 works and the relationship between the mechanical operation and command set execution. Appendix A: Basic Supplies and Re-orderable Parts A listing of common parts and other optical disk library manuals which may be beneficial to the reader. Typographical Conventions The following typographical conventions are used in this manual: Italic Font - Italic font designates the title of a document and statements that need to be emphasized. SERIF TYPE – denotes information that is displayed in the display window of the jukebox. SAN-SERIF TYPE – indicates the key to press on the jukebox control panel NOTES, CAUTIONS, and WARNINGS NOTE A note calls attention to information which can be helpful in understanding the operation of the product.

EK–MOL80–SV. B01 xv CAUTION Caution calls attention to an operating procedure or practice which could result in damage to the product if not correctly performed. Do not proceed beyond this symbol until you fully understand and meet the indicated conditions. WARNING Warning calls attention to a procedure or practice which could result in personal in-jury if not correctly performed. Do not proceed beyond this symbol until you fully understand and meet the indicated conditions. Reader Comments Digital is committed to providing the best products, and we consider our manuals to be important components of our products. Therefore, you are encouraged to submit your comments, suggestions, and corrections to help us improve our product documentation. Please submit all comments and corrections to this manual on the Reader Comment Form included at the back of this manual.

fications. A matrix of environment specifications provide parameters for several sub- assemblies. Figure 1–1 RW551/RW552 Jukebox Product Features The SCSI-connect version of the RW551, RW552 optical disk jukeboxes have the following features: • direct online access to data • data security through the ability to "lock" the jukebox, preventing disk re- moval

1–2 EK–MOL80–SV. B01 • SCSI Interface • single-ended or differential • SCSI-2 command set • autochanger reliability of: • 100,000 hours MTBF (Mean Time Between Failure) • 1,000,000 MSBF (Mean Swaps Between Failure) • modular replacement of all major assemblies • downloadable firmware for the drive mechanism and the autochanger con- troller PCA • a digital signal processor (DSP) based servo built into the drive mechanism for faster seek times and lower error rates • split optics resulting in the use of a lighter optical head for faster and more ac- curate data access • full read and write data caching to optimize system performance • high reliability and data security when using DEC brand rewritable and write- once 5.25-inch optical disks • Digital magneto-optical disks meet the following standards:

EK–MOL80–SV. B01 1–3 Table 1–1 Optical Disk Standards Met by Digital Optical Disks Type Capacity/Format Standard Rewritable 594 Mbyte 512 bytes/sector 650 Mbyte 1024 † bytes/sector Meets ANSI and ISO standards for Con- tinuous – Composite (CC) format – con- forms to ISO/IEC DIS 10089A; ANSI S3.21 2-199x 1.2 Gbyte 512 bytes/sector 1.3 Gbyte 1024 † bytes/sector Meets ECMA 184 standard for Continuous – Composite (CC) format Write-Once 594 byte 512 bytes/sector 650 Mbyte 1024 † bytes/sector Meets ISO and ANSI standards for Con- tinuous – Composite – Write-Once format (CCW) – conforms to ISO/IEC DIS 11560; ANSI X3.220-199x 2X – 1.2 Gbyte 512 bytes/sector 1.3 Gbyte 1024 † bytes/sector Meets ECMA 184 standard for Continuous - Composite - Write-Once format (CCW) 4X – 2.3 Gbyte 512 bytes/sector 2.6 Gbyte 1,024 bytes/sector Meets ISO/IEC 10089A, 11560, and 14517 standards for - Continuous - Composite - (CC) format † DIGITAL Operating Systems only support 512 bytes/sector The Optical Drive Mechanism The optical drive mechanisms (RWZ53) in the autochanger of the jukebox are multifunction drives that can operate in both rewritable and write-once modes. The drives use both rewritable and write-once 5.25-inch magneto-optical disks that comply with ANSI and ISO standards for Continuous Composite format. The drives can sense a rewritable or write-once disk by the formatting on the disk and enter the appropriate mode. Table 1–2 Jukebox Capacities Disk Capacity/Format No. of Slots Max. Jukebox Capacity 1.3 GByte, 1,024 bytes/sector 32 41.6 GBytes 1.3 GByte, 1,024 bytes/sector 64 83.2 GBytes Capacity Upgrade Kit 32 41.6 GBytes 2.6 Gbyte, 1,024 bytes/sector 32 83.2 Gbytes 2.6 Gbyte, 1,024 bytes/sector 64 166.4 Gbytes

1–4 EK–MOL80–SV. B01 Product Support Host support for the jukebox is continually expanding; therefore, specific host system support cannot be provided accurately in this manual. However, host system support is documented in the current Product Service Plan and applicable Software Product Descriptions (SPD). Product Matrix Table 1–3 RW551/RW552 Jukebox Matrix Product/Option HP Designation Description RW551-ZC Model 80fx (1150H) Optical jukebox with two Model OPT 728 multifunction optical drives and capacity for up to 32 rewritable or MO-Worm disks. One blank disk included. Single-ended and differential SCSI interfaces. RW552-ZF Model 80Fx (1160H) Optical jukebox with four Model OPT 728 multifunction optical drives and capacity for up to 64 rewritable or MO-Worm disks. One blank disk in cluded. Single-ended and differential SCSI. RW552-UB Adds two multifunction drives & 32 disk slots in 8 magazines. Characteristics This section provides the physical characteristics and environmental specifica- tions for the jukeboxes. Optical Disk Jukebox/Drive Mechanism Technical Characteristics (Drive) RWZ53 Drive Rotational speed 3000 rpm (1X & 2X)) 3600 rpm (4X) Average seek 25.0 ms Average access time 35 ms (4X disks) 33.3 ms (1X & 2X disks)

EK–MOL80–SV. B01 1–5 Technical Characteristics (Drive) RWZ53 Drive Read transfer rate - max, sustained - for 1,024 bytes/sector up to 1.69 Mb/s (4X disks) up to 1.24 Mb/s (2X Mb disks) up to 1.04 Mb/s (1X disks) Write transfer rate- max, sustained - for 1,024 bytes/sector up to 0.84 Mb/s (4X disks) up to 0.62 Mb/s (2X disks) Burst transfer rate (synchronous) 5 Mb/s Burst transfer rate (asynchronous) 3 Mb/s Read/Write error rate less than 1 block in error per 10 14 bytes Buffer size 1 Mbyte Read Buffering readaheads Write Buffering immediate reporting write reordering Interface SCSI-2 single-ended/Differential asynchronous/ synchronous Physical Characteristics (Jukebox) Height 910 mm 910 mm (35.8 in.) Width 375 mm (33.5 in.) Depth 480 mm (19.0 in.) Weight (net) 90.1 kg (198.7 lb.) Weight (packaged) 120.2 kg (265 lb.) Environmental Specifications Autochanger Drive Media Temperature Operating 10° to 40°C 5° to 45°C 10° to 60°C Non-operating -40° to 70°C -40° to 60°C -10° to 50°C Temperature gradient 10°C per hour 10°C per hour 10°C per hour Transportation (<14 consecutive days) -40° to 60°C

1–6 EK–MOL80–SV. B01 Humidity (non-condensing) Autochanger Drive Media Operating (relative) 10 to 90% 5 to 90% 10 to 80% Non-operating w/o disk 5 to 95% 5 to 95% 10 to 90% Maximum wet bulb 29°C 29°C 29°C Shock (non-operating) End-use, handling (half-sine) 150 g (3 ms) 25 g (11 ms) 760 mm drop (to 2mm vinyl covered concrete) Transportation (trapezoidal) 30 g (523 cm/s) 30 g (742 cm/s) Vibration (5-500 Hz range) Operating (max. accel.) 0.21 g rms. 0.3 g rms. >0.21 g rms. Non-operating random 2 g rms. 3 g rms. Non-operating swept-sine 0.5 g (0-peak) 1 g (0-peak) Altitude Operating 4,572 m (15,000 ft) Non-operating 15,240 m (50,000 ft) Acoustic emissions Operating 61.5 dB (L noise power emission level) Idle 47 dB (L noise power emission level) Particulates Less than 200 micro rams/cubic meter particles suspended Electrostatic discharge Airgap (operating) 5 to 15 kV 0 to 10 kV Airgap (non-operating survival) 0 to 25 kV 0 to 25 kV Direct contact (operating) 0 to 4 kV 0 to 4 kV

EK–MOL80–SV. B01 1–7 Cooling requirements 15 CFM bi-directional through drive Power Requirements Line voltage 100-240V Line frequency 50-60Hz Power consumption (typical) 240 W 819.1 BTU Power consumption (maximum) 275 W 938.5 BTU Service Characteristics Mean time between failure 80,000 power-on hours Mean swaps between failure 600,000 Mean time to repair 30 minutes Preventive maintenance none required Product Certifications Safety EN 60950/IEC 950 UL 1950 listed or recognized CSA 950- TUV approved to VDE 0805 05.90 Electromagnetic emissions FCC 47 CFR Part 15 Subpart J - Class "B" EN 55022/CISPR 22, Level"B";SABS VCCI Level 2 Laser CDRH 21 CFR Chapter 1, Subpart J Registered IEC 825 TUV approved to VBG93, VDE 0837 TTL to Decision 472 BS 4803 part 2 Approved Optical Disks 1X 2X 4X Formatted Capacity 1,024-byte sectors 650 Mbytes 1.3 GBytes 2.6 GBytes 512-byte sectors 594 Mbytes 1.2 GBytes 2.3 GBytes

1–8 EK–MOL80–SV. B01 Recording Characteristics (continuous-composite format) 1X 2X 4X Formatted Capacity Bytes per sector 1024 (512) 1024 (512) 1024 (512) Sectors per logical 17 (31) 17 (31) 17 (31) track Logical tracks 18,751 37,473 (37,527) 75,732 (73,732 per surface Archival life 30 years 30 years Table 1–4 Optical Disk Standards Met by Digital Optical Disks Type Capacity/Format Standard 1X – 594 Mbyte 512 bytes/sector 650 Mbyte 1024 bytes/sector Meets ANSI and ISO standards for Continuous – Composite (CC) format – conforms to ISO/IEC DIS 10089A; ISO/IEC 13549; ISO/IEC N828; ANSI X3.212-1994 2X – 1.2 Gbyte 512 bytes/sector 1.3 Gbyte Meets ECMA 184 standard for Continuous – Composite (CC) format Rewritable 594 byte 512 bytes/sector 650 Mbyte 1024 † bytes/sector Meets ISO and ANSI standards for Continuous – Composite – Write-Once format (CCW) – con- forms to ISO/IEC DIS 11560; ANSI X3.220-199x 4X – 2.3 Gbyte 512 bytes/sector 2.6 Gbyte 1,024 bytes/sector Meets ISO/IEC 10089A, 11560, and 14517 stan- dards for - Continuous - Composite - (CC) format 1X – 594 Mbyte 512 bytes/sector 650 Mbyte 1024 bytes/sector Meets ANSI and ISO standards for Continuous – Composite (CC) format – conforms to ISO/IEC DIS 11560; ANSI X3.220-1994 Write-Once 4X – 2.3 Gbyte 512 bytes/sector 2.6 Gbyte 1,024 bytes/sector Meets ISO/IEC 10089A, 11560, and 14517 stan- dards for - Continuous - Composite - (CC) format

installation procedures. Environmental Requirements This optical disk jukebox is designed to operate with an ambient air temperature range of 10° to 40° C (50° to 104° F) with a rate of temperature change not to exceed 10° C (18° F) per hour. Primary Power/External Ground The power outlet must supply a voltage range of 100 - 240 Vac at 50 - 60 Hz. Also, check the earth (safety) ground of the outlet. Clearance Requirements Figure 2–1 Clearance Requirements "A" orientation - usually in a row of peripheral cabinets.

2–2 EK–MOL80–SV. B01 Rear (w) requires 56 cm (18 in.) for cooling and service. Front (z) requires 86 cm (34 in.) for operator access. Sides (x) and (y) can be adjacent to other cabinets; the service panel (y) would be accessed by pulling the cabinet forward on it wheels. "B" orientation - free standing or against a wall. Rear (1) requires 61 cm (24 in.) for service access. Sides (2) and (3) require 30.5 cm (12 in.) for service, operator access, and cooling. Front (4) requires 61 cm (24 in.) for service and operator access, plus additional space if the cabinet must be moved to access the rear panel (1). Location Requirements Position the autochanger away from sources of particulate contamination such as frequently-used doors and walkways, stacks of supplies that collect dust, and smoke-filled rooms. Responsibilities Customer site preparation/verification and installation are the customer's or reseller's responsibility for the jukebox. If the customer/reseller wants Digital to perform the site preparation/verification and/or installation, this should be contracted for on a time-and-materials basis. Installation and configuration information is in the following manuals: • Medium Optical Disk (RW551/RW552) Library Service Manual (this manual), Chapters 2 and 3. • Optical Disk Jukebox Family User's Guide (EK–RW551–UG). • Host system documentation. • Product Service Plan (PSP). Checkout Procedure Check that all materials are included with the jukebox (see the "Product Matrix" located in Chapter 1). If any items are missing, please contact the sales representative with the following information: • original order number or unit serial number • receiving address

EK–MOL80–SV. B01 2–3 If the unit is damaged, it will be repaired or replaced. The cause of damage will be determined by the field service representative. Problems determined to be caused by factory packaging should be reported, in detail, to the factory so a warranty claim can be submitted. Be sure to include the product number and full serial number in any correspondence with Digital concerning the unit. Unpacking and Taking the Jukebox Off the Pallet Using a floor jack, move the jukebox to the chosen location. Remove the outer packaging by following the instructions printed on the carton. Tools Required • 1/2-inch open-end wrench (for adjusting the leveler feet) • 9/16-inch wrench (to remove the bolts that clamp the feet to the pallet) 1. Remove the ramp from the top of the protective foam pads that cover the top of the jukebox. 2. Attach the ramp to the pallet (see the figure below). a. Remove the plastic bag containing two bolts that is stapled to the front of the pallet. Remove the two bolts from the bag. Figure 2–2 Installing the Ramp Onto the Pallet

2–4 EK–MOL80–SV. B01 b. Place the ramp with the 2 x 2 wood strips facing up onto the pallet with the holes on the end of the ramp aligning with the two holes in the pallet. c. Insert the bolts through these holes. (It is not necessary to tighten these bolts.) 3. Remove the four wooden blocks located between the pallet and the bottom of the jukebox cabinet. 4. Using a 9/16-inch wrench, remove the four hold-down bolts that clamp the cabinet to the pallet. (The bolt heads are on the bottom surface of the ramp.) 5. Using a 1/2-inch wrench, ensure that the leveler feet on the cabinet are raised to their highest position. WARNING If the leveler feet are not raised to their highest position, they may catch on the ramp and cause the jukebox to tip over. 6. Carefully roll the jukebox down the ramp.

This chapter provides information about the operational control on the jukebox and how to use those controls to configure and operate the jukebox. Connections to the RW551/RW552 Jukebox Figure 3–1 Front Panel

3–2 EK–MOL80–SV. B01 Figure 3–2 Rear Panel (SCSI-Connect)

EK–MOL80–SV. B01 3–3 1 Power switch Standby power switch. Switches the power to the jukebox electronics on and off. 2 Mailslot Used to load and unload optical disks. 3 SCSI ports Used to make the SCSI connection to the host computer. Select either the single-ended or differential connectors (see item 5 in this list).The two SCSI connectors of the type selected must both be used. One port must have the SCSI cable connected to it, and the other connector of that type must have either a terminator connected to it or be daisy-chained to another SCSI peripheral. 4 Power port Used to connect the power cord. 5 SCSI interface switch Used to select either the single-ended or differential SCSI ports. 6 Cosmetic side panels Panels that cover the ends of the jukebox. 7 Active bus indicator LEDs that indicate which bus (single-ended or differential) is active. Configuring and Operating the Jukebox NOTE Before you connect the optical disk jukebox to the host, verify that it is supported by the host. For the current list of which host systems support the SCSI-bus jukebox, refer to the RW551/RW552 Product Service Plan. Connecting an Uninterruptable Power Supply (UPS) To fully protect against data loss in the event of a power failure, Digital recommends the use of an uninterruptable power supply (UPS). The UPS must be a central UPS used by the entire computer system. NOTE This jukebox does not have a UPS connector.

3–4 EK–MOL80–SV. B01 If a power failure occurs during a write operation, the UPS must be able to continue to supply power to the jukebox/computer system until the data in the optical drive's buffer can be written to an optical disk. For the best protection, the customer should choose the type of UPS that provides a communication link between the UPS and the computer system. With this type of connection, the computer system is informed when power is being supplied by the UPS and can issue commands to automatically write any data from buffers to disk. The computer then refuses any additional write commands until regular power is restored. CAUTION If the UPS does not provide a communication link between the UPS and the computer system, an operator will have to shut down the computer system (stop any new writes) before the UPS battery power is drained. If the UPS is connected to the jukebox, the following power requirements must be met: Table 3–1 UPS Power Requirements Volt-Amp Watts 125 Volt-Amps (typical) 75 Watts (typical) 180 Volt-Amps (max.) 110 Watts (max.) Connecting the SCSI Cable to the Jukebox The jukebox connects to the host computer with a high-density SCSI interface cable, and may be configured to use either a single-ended or a differential SCSI interface. The SCSI interface type is selected using the SCSI interface switch on the left side panel of the jukebox (see Figure 3–2). The total allowable length of the SCSI cable depends on which interface type is selected. Refer to Table 3–2 for allowable SCSI cable lengths.

EK–MOL80–SV. B01 3–5 Table 3–2 SCSI Cable Length Limitations Interface Type Allowable Cable Length Single-Ended SCSI 6 meters Differential SCSI 15 meters NOTE Because of signal delays inside the jukebox, the allowable external cable length for differential SCSI interface mode is limited to 15 meters instead of the 25 meters typically available with a differential SCSI bus. There are two methods of connecting the jukebox to the host computer: • as the only peripheral device connected to your computer with a SCSI cable. • as one of a number of peripheral devices connected to the computer with a SCSI cable. Connecting Power 1. Check to make sure that the standby power switch located on the right end of the jukebox is OFF. NOTE The switch located on the right end of the jukebox, frequently referred to as a "power switch" only supplies the logic switch to electronics in the power distribution PCA to enable the 5/12V supplies. It does not physically control input power. 2. Remove the panel on the lower left end of the jukebox. Plug the power cord into the AC line connector located on the bottom of the interface module. (Figure 3–2.) 3. Replace the panel on the lower left end of the jukebox.

3–6 EK–MOL80–SV. B01 4. Plug the power cord into the power outlet. 5. Press the power switch located on the top right end of the jukebox to ON. Initially, the control panel displays TESTING. Once the power-on test completes (approximately 1.5 minutes), the control panel displays READY. NOTE A sequence of tests are run when the jukebox is first switched on. The READY status on the control panel indicates that the jukebox is ready of operation. If a FAIL1 status appears on the control panel display, refer to Chapter 4, "Troubleshooting and Diagnostics," for information on how to resolve the problem. Control Panel Operation Figure 3–3 The Jukebox Control Panel

EK–MOL80–SV. B01 3–7 1 Swivel Feature Allows the control panel to be turned to face towards the front of the jukebox or towards the mailslot side of the jukebox. 2 Selection Buttons Pressed to perform the following operations: • CANCEL cancels the current operation or choice • PREV scrolls the display choice backward by one • NEXT scrolls the display choice forward by one • ENTER selects the displayed option 3 Activity Light Lit to indicated the following: • steady green - power is on • flashing green - an optical drive is being accessed • amber - fault indicator 4 16-Character Display operation Displays information about the current Using Selection Buttons The CANCEL, NEXT, PREV, and ENTER buttons are used to select tasks you want the jukebox to perform. When you push any of these buttons, a message appears in the display window. See the next section for a list of messages. You can hold down the and buttons to scroll the display faster. Each time you push the NEXT button, a task option appears. (If you see an asterisk (*) as part of the message, it indicates more choices are available by pressing the NEXT, PREV, or ENTER keys.) Understanding Display Window Messages The display window shows the operations you may select. (Press ENTER to select.) Instructions for using and setting operations follow the explanation of the control panel messages. See Figure 3–4 for the menu tree of the 4X version. Top-Level Messages READY - the jukebox is ready for operation LOAD * - select to load disks through the mailslot EJECT * - select to eject disks through the mailslot ADMIN * - select to access second-level options. (You must enter a security code to access the second-level options).

3–8 EK–MOL80–SV. B01 Second-Level Messages A security code is required to access the second-level options. See “Entering the Administration Level” after the following menu trees. TEST * - select to run internal jukebox tests INFO * - (information) select to retrieve performance information stored in the jukebox logs CONFIG * - (configurations) select to customize the way the jukebox functions SCSI ID”s * - select to view and/or change the SCSI addresses and Logical Unit Numbers (LUNs). Also, the initial access point for choosing LUN mode ONLINE REPAIR * - select to view and change power setting and status of the optical drives (used during online drive replacement). NOTE An “*” indicates there are multiple selections available for that operation. When a menu selection is flashing, press ENTER to select the option, or press PREV or NEXT to display other available options. Figure 3–4 Illustrates the selections available for the 4X jukebox. You can display the selections listed in boxes below the shaded options (TEXT, INFO, etc.) by pressing ENTER when those shaded options are displayed. Press PREV or NEXT to scroll through the list. To perform the displayed operation, press ENTER.

EK–MOL80–SV. B01 3–9 Figure 3–4 Control Panel Menu Tree

3–10 EK–MOL80–SV. B01 Viewing and/or SCSI Ids and Logical Unit Numbers (LUNs) The initial keypress sequence is: To view SCSI IDs and LUNs – 1. Press ENTER. 2. VIEW ID’S* displays. Press ENTER. 3. If LUN mode is set to OFF: JKBX ID # or DRV # ID # LUN # displays. (JKBX ID # stands for the current SCSI ID of the jukebox controller. DRV # ID # is the current SCSI ID setting for the displayed drive number, and “LUN #” is the current logical unit number). If LUN mode is set to ON: JKBX ID # or DRVs ID # displays. The # (in either display) is the current SCSI ID for the jukebox or drives when LUN mode is ON. Press NEXT or PREV to scroll through the current SCSI addresse and LUN settings. 4. Press CANCEL to exit VIEW ID’S *. To change SCSI IDs and LUNs – NOTE A brief explanation of how SCSI addresses and logical unit numbers (LUNs) are used in this family of jukeboxes is in Chapter 6. A SCSI address is required for the jukebox controller and for each optical drive inside the jukebox unless the jukebox is set to LUN MODE ON. If the LUN mode is ON, a single SCSI address can be used, and the jukebox controller and optical drives are mapped to pre-assigned logical unit numbers (LUNs). The default address settings for LUN Mode OFF and ON are shown in Table 3– 3. READY ADMIN * SCSI ID’s *

EK–MOL80–SV. B01 3–11 Table 3–3 Default SCSI and LUN Settings LUN MODE OFF (default) LUN MODE ON SCSI ID LUN SCSI ID LUN JKBX ID 6 0 6 0 DRV 1 ID 5 0 6 1 DRV 2 ID 4 0 6 2 DRV 3 ID* 3 0 6 3 DRV 4 ID* 2 0 6 4 * 160fx models only NOTE The LUN numbers are pre-assigned and may not be changed. NOTE By default, all devices are set to SCSI ID 6 when LUN mode is turned ON. Some host systems do not allow different device types to be under one SCSI address. If this is the case, the “DRVs ID” SCSI address must be set to a different address then that of “JKBX ID.” Table 3–4 Shows how LUNs are mapped when the JKBX ID and DRVs ID are set to the same address and when they are set to a different address. Table 3–4 Default LUN Settings/LUN Settings if “DRVs ID” Address is Changed Default LUN Settings LUN MODE OFF DRVs ID/JKBX ID Different LUN MODE ON SCSI ID LUN SCSI ID LUN JKBX ID 6 0 JKBX ID 6 0 DRV 1 ID 6 1 DRV 1 ID 5 0 DRV 2 ID 6 2 DRV 2 ID 5 1 DRV 3 ID* 6 3 DRV 3 ID* 5 2 DRV 4 ID* 6 4 DRV 4 ID* 5 3 * 160fx models only

3–12 EK–MOL80–SV. B01 NOTE The SCSI ID 7 is reserved for service use on the external SCSI port. The initial keypress sequence is: 1. Press ENTER. SET ID’s displays. Press ENTER. 2. VIEW ID’s displays. Press NEXT until SET ID’S * displays and press ENTER. 3. If LUN mode is set to OFF: JKBX ID # LUN # or DRV # ID # LUN # displays. (JKBX ID # stands for the current SCSI ID of the jukebox controller. LUN # is the current logical number, and DRV # ID # is the current SCSI ID setting for the displayed drive number). If LUN mode is set to ON: JKBX ID # or DRVs ID # displays. (# is the current SCSI ID for the jukebox or drives when LUN mode is ON. Press NEXT until the setting you wish to change is displayed, and then press ENTER. 4. The # (current SCSI address setting) flashes. Press NEXT or PREV until the address you want displays and then press ENTER. NOTE Some host systems do not allow different device types to be under one SCSI address. See second NOTE after Table 3–3. 5. Press NEXT until UPDATE displays, and then press ENTER. 6. UPDATE or WAIT FOR UPDATE and then ID’s SAVED displays briefly. • If the new settings do not conflict with other SCSI addresses on the bus, SCSI ID’s displays. • If the new settings conflict with other addresses on the SCSI bus, CONFLICT-ABORTED displays briefly and then VIEW ID’S * displays. Any changes entered are loss, and you must repeat the steps above to set a new address. READY ADMIN * SCSI ID’s *

EK–MOL80–SV. B01 3–13 7. Press CANCEL until READY displays. NOTE After an address is changed, the computer may have to be restarted for the new addresses to be recognized. The new settings can be saved to ROM by power cycling the jukebox. This allows the settings to be recovered if the jukebox is powered off for more than 10 days. CAUTION Do not switch off power to the jukebox until you are sure the SCSI bus is inactive. Removing power from a SCSI peripheral when the bus is active can result in data loss and/or indeterminate bus states. (Check the host system manuals for information about checking the SCSI bus status.) If the computer is connected to a LAN, be sure to check with the system administrator before shutting off power to the jukebox. Changing an Optical Drive SCSI Address NOTE Because the host computer usually reads a SCSI IDs on startup, it would be best, for larger computer systems, to schedule setting/resetting of SCSI IDs at times when the host computer will be brought down for other scheduled reasons.

3–14 EK–MOL80–SV. B01 1. With READY displayed, press NEXT until ADMIN# appears in the display window. NOTE A three-part security code is required to access any options beneath ADMIN. The security code is set to 0,0,0 at the factory, but you should encourage the customer to change this as soon as possible to avoid access by unauthorized persons. If CONFLICT displays, the jukebox controller and the optical drive mechanism are set to the same address. You must reset one of them. 2. Press ENTER. CODE 1 and a flashing 0 displays. Press ENTER if no security code has been set, otherwise press NEXT until the first number of the security code displays, and then press ENTER. Repeat this step to enter the next two parts of the security code. 3. Press NEXT until SCSI IDS displays, and then press ENTER. 4. JB CNTRL ID # displays. (JB CNTRL stands for jukebox controller, and "#" is the SCSI ID that is currently set). Press NEXT until DRIVE ID # (or the drive number you want to access) and then press ENTER. The # flashes. 5. Press NEXT or PREV until the address you want displays and then press ENTER. 6. Press NEXT until UPDATE displays, and then press ENTER. IDS SET displays if the address you set does not conflict with other addresses on the SCSI bus, otherwise JB CNTRL ID # and then CONFLICT displays. If CONFLICT displayed, the previous SCSI ID settings have been restored and you must reset the SCSI IDs to non-conflicting addresses; if CONFLICT does not display, the address you chose is now set. 7. Press CANCEL two times to return to the READY state. NOTE If an ID is changed, the host computer may have to be restarted for the new ID to be recognized.

EK–MOL80–SV. B01 3–15 Changing a Configuration Option 1. With READY displayed, press NEXT until ADMIN* appears in the display window. NOTE A three-part security code is required to access any options beneath ADMIN. The security code is set to 0,0,0 at the factory, but you should encourage the customer to change this as soon as possible to avoid access by unauthorized persons. 2. Press ENTER. CODE 1 and a flashing 0 displays. Press ENTER if no security code has been set, otherwise press NEXT until the first number of the security code displays, and then press ENTER. Repeat this step to enter the next two parts of the security code. 3. TEST* displays. Press NEXT until CONFIG displays, and then press ENTER. The last configuration option that was in the display will show. 4. Press NEXT or PREV until the name of the configuration you wish to set displays and then ENTER. Press CANCEL to return to READY. Table 3–5 Configuration Choices Configuration Name Description RECOVERY ON/OFF Toggles between ON and OFF. If the configuration is set to ON, the jukebox will attempt to recover from any errors encountered; if the configuration is set to OFF, the jukebox will shut down if an error condition exists. This configuration should be set to ON under normal conditions. SET DEFAULTS Sets all jukebox configurations back to their default settings. CLEAR ODOMETERS Sets all jukebox odometers back to zero.

3–16 EK–MOL80–SV. B01 Table 3–5 Configuration Choices (continued) Configuration Name Description DUAL PICKER ON/OFF Toggles between ON and OFF. Default setting is DUAL PICKER ON. If the configuration is set to ON, the jukebox runs with dual picker (disk transport) addressing ON ; if the configuration is set to OFF, the jukebox runs with dual picker (disk transport) addressing OFF. To change the configuration press ENTER to select this option, and then press NEXT or PREV to toggle between ON or OFF. Press ENTER to select your choice. IS SET displays. This configuration should not be used by the customer. STARWARS ON/OFF Toggles between ON and OFF. If the configuration is set to ON, the jukebox runs with the vertical sensors enabled; if the configuration is set to OFF, the jukebox runs with the vertical sensors disabled. Do not set this configuration to off during normal operation. To change the configuration press ENTER to select this option, and then press NEXT or PREV to toggle between ON or OFF. Press ENTER to select your choice. # IS SET displays.

EK–MOL80–SV. B01 3–17 Table 3–5 Configuration Choices (continued) Configuration Name Description NEW PASSWORD Allows changing the security code through the control panel. The password allows access to configurations, tests, and information logs. Setting the security code is explained in "Setting a New Security Code" in the user guide. SCSI LOG ON/OFF Toggles between ON and OFF. Tracks internal SCSI status and saves the information to a log. SECURE ON/OFF Toggles between ON and OFF. If the configuration is set to ON, optical disks can no longer be loaded or ejected. If the configuration is set to OFF, the jukebox operates in its default state, which allows disks to be loaded and ejected. To change the configuration press ENTER to select this option, and then press NEXT or PREV to toggle between ON or OFF. Press ENTER to select your choice. IS SET displays. SECURE MAIL IN/OUT Toggles between IN and OUT. This configuration determines how the mailslot functions when the SECURE ON/OFF configuration is set to ON or a SCSI Prevent Media Removal command has been sent. When SECURE MAIL is set to IN, the mailslot is rotated in so that disks cannot be inserted or removed until SECURE is set to OFF or a SCSI Allow Media Removal command is received. When toggled OUT the mailslot is rotated so it is open even if SECURE is set to ON.

3–18 EK–MOL80–SV. B01 Table 3–5 Configuration Choices (continued) Configuration Name Description POWER SECURE ON/OFF Toggles between ON and OFF. When set to ON the SECURE ON/OFF configuration setting is retained in the event of a power outage. REP RECOVERED ON/OFF Toggles between ON and OFF. When set to ON errors that were recovered from are reported; when set to OFF the recovered errors are not reported. CONF40 ON/OFF Toggles between ON and OFF. Select Inquiry Mode. ON selects standard inquiry mode; OFF selects downloadable inquiry mode. Default is OFF to operate with Digital Systems. CONF41 ON/OFF Toggles between ON and OFF. ON sets drive inquiry to HP mode. OFF sets drive inquiry to Digital mode. Default is OFF. Loading an Optical Disk into the Jukebox NOTE All disks should be labeled before inserting them into the jukebox. Some software packages require that disks be inserted and removed using the software. If the customer is using a software package to manage files in the jukebox, check the software documentation before proceeding with these steps.

EK–MOL80–SV. B01 3–19 1. With READY displayed, insert a cartridge into the mailslot. The shutter end of the cartridge goes in first. Side A should be facing up. Push the cartridge in gently until it is fully inserted into the mailslot. LOAD and SLOT## ("##" is the number of the first available storage slot in the jukebox) alternately display. 2. If you want to select the storage slot number in the display, press ENTER. If you want to choose a different storage slot, press NEXT until the desired slot number is displayed and then press ENTER. 3. Initially, flashes in the jukebox display. After the disk has been loaded into the selected storage slot, LOADED displays briefly, and then LOAD* is again displayed. (See the note below.) You many now load additional disks. Press ENTER and then repeat steps 1 and 2 until you have loaded all the disks you want to into the jukebox. 4. Press CANCEL to return to the READY state. NOTES If you get a LOAD ERROR message, one of the following conditions may exist: The disk may not be pushed far enough into the mailslot. Try pushing the disk into the mailslot a little farther. The disk was inserted incorrectly into the mailslot. The shutter end of the cartridge goes in first. If you get a MAILSLOT EMPTY message, a disk needs to be inserted into the mailslot. If you get a RESERVED message, a security option has been set that prevents disks from being loaded into or removed from the jukebox. See "Setting a Security Code" in this chapter. If you get a TRANSPORT FULL message, the disk transport mechanism already contains a disk. If you get a SENSOR message, verify that the disk has been correctly inserted into the mailslot. If the error cannot be corrected by removing and then re-inserting the disk, the mailslot sensors may have failed.

3–20 EK–MOL80–SV. B01 Ejecting an Optical Disk from the Jukebox NOTE Some software packages require that disks be inserted and removed using the software. Check with the system administrator to determine if the software used to manage disks in the jukebox requires ejection under software control. 1. With READY displayed, press NEXT until EJECT* displays, and then press ENTER. 2. EJECT and SLOT## ("##" is the number of the first storage slot in the jukebox that contains an optical disk) alternately display. 3. If you want to select the storage slot number in the display, press ENTER. If you want to choose a different storage slot, press NEXT or PREV until the desired slot number is displayed and then press ENTER. (See the note on the following page.) Initially, EJECTING flashes on the jukebox display. When the disk has been moved into the mailslot EJECTED displays briefly and the EJECT* displays. 4. Remove the optical disk from the mailslot. You may now eject additional disks by pressing ENTER and then following steps 2 through 4 until all disks that you wish to eject are removed, or press CANCEL to return to the READY state.

EK–MOL80–SV. B01 3–21 NOTE There are several conditions that may prevent an optical disk from being ejected: If there are no disks in the jukebox storage slots, EMPTY is displayed briefly, and then EJECT* displays. If the host system computer has a disk reserved. the slot number of the reserved disk will not be displayed. The disk must be unreserved before the disk can be ejected. (Refer to the host system documentation or the application software documentation for instructions for unreserving a disk. If the configuration, "Prevent Media Removal" has been set, RESERVED displays and disks cannot be removed. (See "Changing a Configuration Option" earlier in this chapter.) The host computer system has been set to disallow mailsot operation. Refer to the host system documentation or the application software documentation. EJECT ERROR displays if the mailslot is jammed. If MAILSLOT FULL displays, there is already an optical disk in the mailslot that must be removed before another disk can be ejected.

3–22 EK–MOL80–SV. B01 Setting a Security Code A security code of 0-0-0 is set at the factory. This three-part security code is required to access any options beneath ADMIN. You should encourage the customer to change this as soon as possible to avoid access by unauthorized persons. 1. With READY displayed, press NEXT until ADMIN* appears in the display window. NOTE A three-part security code is required to access any options beneath ADMIN. The security code is set to 0,0,0 at the factory, but you should encourage the customer to change this as soon as possible to avoid access by unauthorized persons. 2. Press ENTER. CODE1 and a flashing 0 displays. Press ENTER if no security code has been set, otherwise press NEXT until the first number of the security code displays, and then press ENTER. Repeat this step to enter the next two parts of the security code. 3. TEST* displays. Press NEXT until CONFIG* displays, and then press ENTER. The last configuration in the display will show. 4. Press NEXT or PREV until NEW PASSWORD displays and then press ENTER. 5. NEW1 and a flashing 0 are displayed. Press NEXT or PREV until the new number you wish to assign to the first part of the security code is displayed and then press ENTER. 6. NEW2 and a flashing 0 are displayed. Press NEXT or PREV until the new number you wish to assign to the second part of the security code is displayed and then press ENTER. 7. NEW3 and a flashing 0 are displayed. Press NEXT or PREV until the new number you wish to assign to the third part of the security code is displayed and then press ENTER. 8. IS SET displays briefly and then NERW PASSWORD displays. Press CANCEL three times to return to READY. 9. Cycle power to the jukebox by switching off the power and then turning it back on. (Cycling power backs up the new security code so it can be recovered if the jukebox is powered off for more than 10 days.)

EK–MOL80–SV. B01 3–23 Moving or Shipping the Jukebox To move the optical jukebox a short distance (down the hallway or to another floor in the building), use the steps in "Moving the Jukebox a Short Distance." If you want to ship this jukebox, see "Shipping the Jukebox" on the next page. Moving the Jukebox a Short Distance 1. Unmount (unreserve) any disk surfaces from the host system if necessary. Request that the system administrator do this. 2. Ensure that there are no optical disks in the jukebox drives. Eject the disks if necessary. CAUTION Failure to eject a disk from an optical drive prior to moving the jukebox could result in damage to the drive mechanism. Do not remove power to the jukebox until you are sure that the SCSI bus is inactive. Switching off power or unplugging the power cord when the SCSI bus is active can cause data loss and/or indeterminate bus states. Refer to the host system reference manuals for information on checking the status of the SCSI bus. NOTE Before moving the jukebox to its new location, make sure all environmental requirements listed in Chapter 2 have been met and the power outlet has been checked to ensure that the proper voltage is available for the drive. 3. Switch off the power switch on the right side panel. 4. Remove the left side lower access panel. 5. Remove the power cord and SCSI cable connections from the interface module. 6. Raise the leveler feet using a 1/2-inch wrench. 7. Carefully roll the jukebox to its new location.

3–24 EK–MOL80–SV. B01 8. Connect the jukebox to the host. 9. Reconnect the power cord. 10. Lower the leveler feet using a 1/2-inch wrench. 11. Configure the jukebox to the host. (Refer to the host system manuals for configuration information.) Shipping the Jukebox 1. Unmount (unreserve) any disk surfaces from the host system if necessary. Request that the system administrator do this. 2. Eject all disks from the jukebox. If the disks are not labeled with a storage slot location, make sure they are labeled at this time. See "Ejecting Optical Disks." The system administrator should refer to "Labeling an Optical Disk Cartridge" in Chapter 2 of the jukebox user's guide. CAUTION Failure to eject a disk from an optical drive prior to moving the jukebox could result in damage to the drive mechanism. Do not remove power to the jukebox until you are sure that the SCSI bus is inactive. Switching off power or unplugging the power cord when the SCSI bus is active can cause data loss and/or indeterminate bus states. Refer to the host system reference manuals for information on checking the status of the SCSI bus. 3. Switch off the power switch on the right side panel. 4. Remove the left side lower access panel. 5. Remove the power cord and SCSI cable connections from the interface module. 6. Raise the leveler feet using a 1/2-inch wrench. 7. Repackage the jukebox (lower the leveler feet after the jukebox is on the shipping pallet).

EK–MOL80–SV. B01 3–25 Host Configuration Once the jukebox is connected to the host system and the device address is set, you are ready to prepare the host system to access the jukebox. To determine if the host you are connecting to supports this device and for further installation information, check the following documents: • RW551/RW552 Product Service Plan • Host system documentation • Applicable Software Product Description (SPD)

This chapter contains troubleshooting information about the SCSI-connect. Operation/Installation Troubleshooting Troubleshooting Using the Control Panel and Observation When there are errors in autochanger movements, two main approaches are available to get information and to run exerciser tests. The approach usually depends on whether the error encountered was a hard error or whether it was a soft (intermittent, recoverable) error. • Troubleshooting Using the Control Panel and Observation - This method is usually used in situations where you have a hard error. • Troubleshooting Through the SCSI Bus - This method is used in situations where you have a intermittent, recoverable) error. Error information and logs accessed through the control panel are summarized. By knowing how the autochanger operates and using the summarized information from the control panel display, there is enough information to troubleshoot many problems that result in a hard error.

4–2 EK–MOL80–SV. B01 The Autochanger Lists the First "Possibles" At power on, and after every failed move, the autochanger automatically runs an initialization sequence that comprehensively tests the autochanger. If a hard failure occurs, a list of possible FRUs (Field Replaceable Units) that may have been at fault is returned. Figure 4–1 The Autochanger Returns Suspect FRUs NOTE This test sequence returns possible failed FRUs only if there has been a hard failure. The test sequence will NOT find an failure from which a recovery was made. Evaluating Results of the Internal FRU Isolation Similar to treating symptoms rather than the real problem, the suspect FRUs given by the FRU isolation procedure may actually mask the root cause of the problem. The hard move error that caused the autochanger to run the FRU isolation test may have only been a PRODUCT of the actual problem. Blindly and repeatedly replacing the suspect FRU(s) will not solve the problem.

EK–MOL80–SV. B01 4–3 Figure 4–2 How Service Views the Suspect FRUs If you consider the suspect FRU as a POINTER to the problem area rather than the problem itself, an educated visual inspection, with perhaps some cable and connector wiggling, should reveal the real problem. A good visual inspection requires an understanding of how the autochanger acts under normal operation. To understand what the autochanger does in normal operation, run the various movements available from the control panel and watch it closely. Reading the descriptions in the Micro-move table in this chapter will also help you understand the composition of its movements. Retrieving Performance Information 1. With READY displayed, press NEXT until ADMIN* appears in the display window. NOTE A three-part security code is required to access options beneath ADMIN. This code may be 0-0-0 as set in the factory or another code chosen by the customer after installation. 2. Press ENTER.CODE1 and a flashing 0 displays. Press ENTER if no security code has been set, otherwise press NEXT until the first number of the security code displays, and then press ENTER. Repeat this step to enter the next two parts of the security code.

4–4 EK–MOL80–SV. B01 3. TEST*displays. Press NEXT until INFO* displays, and then press ENTER. 4. Press NEXT until the name of the log you wish to access displays and then ENTER ( An "*" indicates that there are more choices beneath the displayed choice.) 5. Press CANCEL to return to READY. Descriptions of the available information logs are on the following pages. Table 4–1 Information Logs Log Name Description REVISION Displays the jukebox's firmware version number. ODOMETERS * Press ENTER to select the odometer logs described in the next few rows. Step through the logs by pressing NEXT and PREV. HOURS Displays the number of operation hours (operation button on-time). MOVES Displays the total number of moves and move attempts by the disk translate mechanism. FLIPS Displays total number of disk translate mechanism flips. XLATES Displays the total number of horizontal moves between optical disk storage slots. ROTATES Displays the total number of mailslot rotations. DRIVE 1 Displays the number of optical disk loads for optical drive number 1. DRIVE 2 Displays the number of optical disk loads for optical drive number 2. DRIVE 3 Displays the number of optical disk loads for optical drive number 3. (RW532 only) DRIVE 4 Displays the number of optical disk loads for optical drive number 4. (RW532 only) HARD ERRORS * Returns either "NO HARD ENTRIES" or "ENTRY #". (There may be multiple hard error numbers.) Press ENTER to select the hard error number you wish to view logs for. (The available logs are described in the rows following "RECOVERY ERRORS" in this table.) Step through the log by pressing NEXT or PREV.

EK–MOL80–SV. B01 4–5 Table 4–1 Information Logs (continued) Log Name Description SOFT ERRORS * Returns either "NO SOFT ENTRIES" or "ENTRY #". (There may be multiple soft error numbers.) Press ENTER to select the soft error number you wish to view logs for. (The available logs are described in the rows following "RECOVERY ERROR" in this table.) Step through the log by pressing NEXT or PREV. RECOVERY ERRORS * Returns either "NO ENTRIES" or the number of recovery errors. Press ENTER to select the recovery error number you wish to view logs for. (The available logs are described in the following rows. Step through the log by pressing NEXT or PREV . ODOMETER # The number of moves. HARDWARE ERR # This error number indicates the cause of the failure. FRU 1 The field-replaceable unit most likely to be at fault. FRU 2 The field-replaceable unit second likely to be at fault. FRU 3 The field-replaceable unit third likely to be at fault. MOTION indicates one of the following types of movements taking place in the jukebox at the time of the failure: • EXCHANGE • MOVE • POSITION • INIT ELEM • REZERO • ROTATE • DIAGNOSTIC • RESTORE • PASSTHRU SOURCE The element number where the move started DESTINATION 1 The element that was the first destination of the move. DESTINATION 2 The element that was the second destination of the move.

4–6 EK–MOL80–SV. B01 Table 4–1 Information Logs (continued) Log Name Description MICROMOVE 1-6 The IDs of the last six micro-moves for the original move command issued prior to the failure (individually displayed). Step through the micro-move IDs by pressing NEXT or PREV. MICROMOVE ERR # The micro-move error ID of the failed move. TOP or BOTTOM PICKER Displays either "TOP" or "BOTTOM" indicating which picker side is active. NORTH or SOUTH THUMB Displays either “NORTH” or “SOUTH” indicating which thumb on the translate mechanism is alive. Getting Error Information Through the SCSI Bus When there are errors in autochanger movements, two main approaches are available to get information and to run exerciser tests. The approach usually depends on whether the error encountered was a hard error or whether it was a soft or intermittent error. • Troubleshooting Using the Control Panel and Observation - This method is usually used in situations where you have a hard error. • Troubleshooting Through the SCSI Bus - This method is used in situations where you have a soft or intermittent error. Using data on the SCSI bus, you can determine exactly what the autochanger was doing when a failure occurred; all the way down to the macro-move and micromoves. Also, through the Log Sense and Request Sense commands, you can gather information on the optical drive; which cannot be done through the control panel. An external utility is needed to read the data on the SCSI bus. A diagnostic utility called DOSDASS4 provides this capability. If required, the DODASS4 utility and instructions can be obtained from the Digital Customer Support Center. A PC with a 154X Adaptec controller is required to use the DOSDASS4 utility.

EK–MOL80–SV. B01 4–7 Figure 4–3 Information and Tests Through the SCSI Bus Refer to the following information when troubleshooting through the SCSI bus: Offline Diagnostics for Hewlett-Packard Optical Products (reference Appendix A for ordering information). This guide contains information about Hewlett-Packard's offline diagnostic, DOSDASS4, which can be used to access the above information through the SCSI bus. In addition, refer to the following tables, also contained in this guide: • Request Sense Command Tables – These tables show error information and information about the state of the autochanger after an error has occurred, which is returned when a Request Sense command is issued through the SCSI bus. • Log Sense Command Tables – These tables show the error and move information which is stored in various logs during autochanger operation and when running internal diagnostics. Diagnostics Several diagnostic programs and tests are available for the optical disk jukebox. This chapter gives information on how to run these tests/programs or where to find this information

4–8 EK–MOL80–SV. B01 The two types of diagnostics available for the jukebox are: • Offline Diagnostics - Hewlett-Packard offers a diagnostic program called DOSDASS4 for use with the optical disk jukebox. These diagnostics can be obtained from the Digital Customer Support Center at CXO. This PC-based diagnostic program allows you to fully test the autochanger mechanism or the optical drive mechanism. • Internal Diagnostics - These tests are run from the control panel and are under the ADMIN selection. These tests are fully explained later in this chapter. Offline Diagnostics A diagnostic utility called DOSDASS4 is available to authorized service organizations from Hewlett-Packard for accessing the jukebox through the SCSI bus or from the Digital Customer Support Center at CXO. DOSDASS4 fully exercises the standalone multifunction optical drives and the autochanger. CAUTION DO NOT CYCLE POWER during any troubleshooting until you are sure the system SCSI bus is INACTIVE and will REMAIN INACTIVE. Removing power while the bus is active can cause data loss and/or indeterminate bus states. Check the host system reference manuals for information on checking the status of the SCSI bus. Operation and Installation Error information is listed in Table 4–2.

EK–MOL80–SV. B01 4–9 Table 4–2 Operation Errors Task Problem/Symptom What to do Communicating host<-->jukebox Can't get the host to recognize the jukebox. • Check to make sure the jukebox is supported on the host operating system. • Check to make sure the autochanger was installed and configured as described in the users guide and the appropriate host system & software manuals. • Check the SCSI connections. Changing the drive address Changed drive address but new address is not recognized. After changing an address, the autochanger power and/or the host system power may need to be cycled for the new address to be recognized. (Refer to the host system documentation for information on setting peripheral addresses and shutting down the host system.) Inputting Security Code Security code forgotten or misplaced. • First, try the default security code (0-0-0). • If the security code is not set to the default, replace autochanger controller PCA. The customer may now use configuration 17 to set a new security code. (See the "Setting a New Security Code" section in Chapter 3.)

4–10 EK–MOL80–SV. B01 Table 4–2 Operation Errors (continued) Task Problem/Symptom What to do Loading Disks Disk inserted in mailslot, but the display reads LOAD ERROR, or MISLOAD. Remove the disk from the mailslot and try inserting it again. Push the disk in, shutter-end first, so that the disk is flush with the jukebox front panel. Powering on The optical disk jukebox won't power on. • Check to make sure the power cord connections are tight. • Check that the power switch is ON (next to the mailslot). • Check to make sure the power outlet is operating. • Replace the power cord with a known good one. • Replace the power supply module. Power on selftest fails. • Press ENTER and record the error message. • Cycle the power. Observe the power on test result. If the unit continues to fail, use the error code to begin troubleshooting. (See the "Power on Selftest" section following this table.) Power fail Just the autochanger power fails. When power returns, unmount and remount all disk surfaces. Do not eject any disks until the surfaces are umounted/unreserved.

EK–MOL80–SV. B01 4–11 Table 4–2 Operation Errors (continued) Task Problem/Symptom What to do Autochanger power fails while a disk is in the drive. If you need to remove the disk before power can be resupplied to the drive, the eject tool can be used to recover the disk. See the instructions for using the eject tool later in this chapter. Host computer power fails and the autochanger stays on. After the host reboots, file system check) any write- mounted surfaces. Both the host system and autochanger power fail. After the host reboots, file system check any write- mounted surfaces. See the following CAUTION note. CAUTION Do not eject disks from the autochanger until all mounted surfaces are unmounted. Reading the control panel display window. No display messages appear. • Check that the power cord is connected. • Check AC input. • Check the control panel cable connections. • Power cycle the jukebox. • Replace the power cable with a known good one. • Replace the autochanger controller PCA. • Replace the power supply.

4–12 EK–MOL80–SV. B01 Table 4–2 Operation Errors (continued) Task Problem/Symptom What to do Reading/writing magneto-optical disks Can't write to the disk. • Check the file system access permissions. • Check the write- protect tab on each disk side to assure write-enabled status. • Check to make sure the disk was initialized. • Check that the disk file system was mounted correctly. • Refer to the "Optical Disk Cleaning" section in this chapter. Removing disks Disk inserted in the mailslot, but LOADERROR or MISLOAD displays. • Press CANCEL and try inserting the disk into the mailslot again. Disk removal attempted, but a FULL or MISLOAD error message displays. • If there is a disk in the mailslot, remove it, then try to remove the desired disk again. • If there is no disk in the mailslot and the MISLOAD message displays, check hardware errors and Table 4–3.

EK–MOL80–SV. B01 4–13 Table 4–2 Operation Errors (continued) Task Problem/Symptom What to do The unit's power failed while a disk was in the drive. • Power cycle the unit. • If power on is unsuccessful, power the unit off. Do not move the unit. Moving the unit with a disk in the drive risks damaging the magneto-optical mechanism in the MO drive. Refer to the "Powering On" and "Power Fail" sections earlier in this table. • If it is critical that the disk be removed from the drive before power can be restored to the drive, see "Using the Eject Tool to Remove a Disk from the Drive" in this chapter. Running a test Started a test and need to stop the test. • Press CANCEL. The current test loop continues until it is finished; then the test stops. Normal operation INIT ELEM (Initialize Element) displays. • Power cycle the jukebox. Do not power cycle the jukebox until all other peripherals on the SCSI bus are turned off. Removing power from the jukebox when other devices are active on the SCSI bus may cause data loss and/or other problems with the SCSI interface.

4–14 EK–MOL80–SV. B01 Recovery from Hardware Errors When a hardware failure occurs, a message is displayed on the control panel. If the failure occurs during the power-on sequence, DEVICE FAILED is displayed. If the failure occurs when loading a disk you may see LOAD ERROR or FULL. If a failure occurs while you are running a test, TEST FAILED is displayed. When you press ENTER, the autochanger displays information about the hardware failure that is held in the error log. The autochanger firmware can detect broken components such as a dead motor, but if failures are due to marginal or random problems, the failing component may induce errors in other components. For example, if any portion of the electronics becomes intermittent or if friction increases on a part, different components of the autochanger may appear to fail at varied points as the autochanger runs its code. This results in many different error codes. The following table shows the hardware error codes possible and recovery procedures for specific hardware errors. Table 4–3 Hardware Errors and Recovery Procedures Error Code Error Description Recovery Procedures (hex.) 01 ROM checksum error 01 thru 07 are controller tests. These errors only possible on power up. If you get these errors, replace the controller PCA. 02 Register error See error 01 03 Microprocessor error See error 01 04 Controlled area of RAM checksum error See error 01 05 RAM test error See error 01 06 SCSI chip error See error 01 07 Jukebox controller chip error See error 01

EK–MOL80–SV. B01 4–15 Table 4–3 Hardware Errors and Recovery Procedures (continued) Error Code Error Description Recovery Procedures (hex.) 0A Drive 1 connection error • Verify if you can see other drives • Switch cables (see if it stays with the drive or cable) • -If indicates cable - change cable • -If not, change interposer PCA • Change controller PCA • Change drive (low priority, drive just returns a ground signal, so would appear fine, unless the cable was not carrying signal 0B Drive 2 connection error See error OA 0C Drive 3 connection error See error OA 0D Drive 4 connection error See error OA 1E Translate motor error • Can not translate the picker and/or sense that it has moved. Picker assembly (umbilical cable, motor, sensor) • If doesn't move at all – likely is the umbilical cable • If it moves a little but can't reach the side – cables good, motor is bad • Got to the side, but can't sense you did – sensor. • Change the controller PCA

4–16 EK–MOL80–SV. B01 Table 4–3 Hardware Errors and Recovery Procedures (continued) Error Code Error Description Recovery Procedures (hex.) 1F Vertical motor error Occurs when trying to sense a move of the carriage assembly) If the translate assembly moves – and you get a failure – that means that we're not reading the encoder strip. If the translate assembly doesn't move – it probably is the motor leads, motor, or 24-volt power supply. • Make sure the encoder strip is inside sensor. • Make sure the motor leads are connected to the vertical motor. • Check that the cable from the sensor is connected through the translate from to the umbilical cable for the picker. • Change the 24-volt power supply. • Change the controller PCA. 20 Plunge motor error • Check the plunge motor leads. • Change the picker. 28 Mailslot sensor error • Check the mailslot-to- interposer cable. • Change the mailslot. • Change the interposer PCA.

EK–MOL80–SV. B01 4–17 Table 4–3 Hardware Errors and Recovery Procedures (continued) Error Code Error Description Recovery Procedures (hex.) 29 Right beam error • Check that the space between the picker and magazines is physically clear. • Run the STARWARS test to verify that there is a beam on the right side and the indication changes properly when the beam is interrupted. If the STARWARS test can not verify the beam, change the interposer PCA. • Change the controller PCA (receivers are mounted on this PCA). 2A Left beam error See error 29 (apply to left beam). 2B Top thumb sensor error • Change the picker • Change the umbilical cable • Change the controller PCA 2C Bottom thumb sensor error • Change the picker • Change the umbilical cable • Change the controller PCA 32 Invalid test number User error 33 Invalid configuration User error 34 Need to initialize element status Run Init Elem Status 35 Exercise test failed Run Exercise test again, watch where it fails. 36 Elements reserved User error

4–18 EK–MOL80–SV. B01 Table 4–3 Hardware Errors and Recovery Procedures (continued) Error Code Error Description Recovery Procedures (hex.) 3C Move to • Vertical motion failed in the middle of a move or exchange. • Look at the micro-move error of the failure in the error log (under INFO *, and Hardware Error in the control panel display). Also check the Source and Destination entries in the error log to verify what move was in process. • Make sure the encoder strip is inside sensor. • Make sure the motor leads are connected to the vertical motor. • Check that the cable from the sensor is connected through the translate from to the umbilical cable for the picker. • 24-volt power supply • Controller PCA. 3D Flip • Change picker 3E Translate • Change picker 3F Put magazine in • Failed plunging cartridge into a magazine. Look at the micro-move error of the failure in the error log (under INFO *, and Hardware Error in the control panel display). Probably the picker. 40 Get magazine out • Failed extracting a cartridge from a magazine. • Look at the micro-move error of the failure in the error log (under INFO*, and Hardware Error in the control panel display). • Probably the picker

EK–MOL80–SV. B01 4–19 Table 4–3 Hardware Errors and Recovery Procedures (continued) Error Code Error Description Recovery Procedures (hex.) 41 Test magazine Failed testing the magazine portion during an ISTAT. • Look at the micro-move error of the failure in the error log (under INFO*, and Hardware Error in the control panel display). • Probably the picker. 42 Put drive in • Look at the micro-move error of the failure in the error log (under INFO*, and Hardware Error in the control panel display). • Remove rear panel and run the Wellness Test, Drive I/O test, and Exercise Mechanics test. Note where the problem occurs. • If indicates the drive, change the drive. • If it indicates a picker error, change the picker. 43 Get drive out • Look at the micro-move error of the failure in the error log (under INFO *, and Hardware Error in the control panel display). • Remove rear panel and run the Wellness Test, Drive I/O test, and Exercise Mechanics test. Note where the problem occurs. • If indicates the drive, change the drive. • If it indicates a picker error, change the picker.

4–20 EK–MOL80–SV. B01 Table 4–3 Hardware Errors and Recovery Procedures (continued) Error Code Error Description Recovery Procedures (hex.) 44 Test drive • Look at the micro-move error of the failure in the error log (under INFO *, and Hardware Error in the control panel display). • Remove rear panel and run the Wellness Test, Drive I/O test, and Exercise Mechanics test. Note where the problem occurs. • If indicates the drive, change the drive. • If it indicates a picker error, change the picker. 45 Put mailslot in • Change the picker. • Change the mailslot. 46 Get mailslot out • Change the picker. • Change the mailslot 47 Test mailslot • Change the picker. • Change the mailslot. 48 Rotate mailslot in • Cycle power to the jukebox to initiate a power on test sequence. • Check to see if mailslot rotation works. • If the mailslot rotates in, change the picker. • If the mailslot does not rotate in, change the mailslot. 49 Rotate mailslot out • Cycle power to the jukebox to initiate a power on test sequence. • Check to see if mailslot rotation works. • If the mailslot rotates in, change the picker. • If the mailslot does not rotate in, change the mailslot.

EK–MOL80–SV. B01 4–21 Table 4–3 Hardware Errors and Recovery Procedures (continued) Error Code Error Description Recovery Procedures (hex.) 4A Test picker This may appear when testing for a cartridge in the picker during an ISTAT. • Replace picker 4B Switch active picker Replace picker 4C Restore picker Replace picker 4D Find translate home Can not translate the picker and/or sense that it has moved. Run FIND XLAT HOME test from the control panel • If the picker does not move at all, check the connections on the umbilical cable. If the connections are good and the picker still does not move, change the umbilical cable. • If the picker moves a little but does not reach the side of the frame, the translate motor on the picker is probably defective. Change the picker. • If the picker moves properly to the side, the translate sensor is probably defective. Change the picker. 4E Find vertical home Because a motor test is called before a find vertical home is attempted, the vertical motor is assumed to be at least minimally functional. • Check that the vertical path is physically clear. • Change the vertical motor (probably a marginal error).

4–22 EK–MOL80–SV. B01 Table 4–3 Hardware Errors and Recovery Procedures (continued) Error Code Error Description Recovery Procedures (hex.) 4F Find plunge home We know that we can move the plunge motor. We know that that we can move the plunge motor and sense that we moved it so the motor and umbilical cable are not suspect. • Change the picker 50 Clear flip area The vertical path is probably blocked. Perhaps falsely over forcing. • Check that the path is clear. • Exercise and visually check the operation of the vertical motor. 51 Clear magazine path • Check that the path from the picker to the magazine is clear. • Check that the vertical path is clear. • Test the vertical path sensor operation. 52 Clear drive path • Check that the path from the picker to the drive is clear. • Check that the vertical path is clear. • Test the vertical path sensor operation. 53 Clear mailslot path • Check that the path from the picker to the mailslot is clear. • Check that the vertical path is clear. • Test the vertical path sensor operation. 5B Finish switching the picker Change the picker. 5C Wait plunge Change the picker.

EK–MOL80–SV. B01 4–23 Table 4–3 Hardware Errors and Recovery Procedures (continued) Error Code Error Description Recovery Procedures (hex.) 5D Wait vertical Vertical motion failed in the middle of a move or exchange. • Look at the micro-move error of the failure in the error log (under INFO *, and Hardware Error in the control panel display). Also check the Source and Destination entries in the error log to verify what move was in process. • Make sure the encoder strip is inside sensor. • Make sure the motor leads are connected to the vertical motor • Check that the cable from the sensor is connected through the translate from to the umbilical cable for the picker. • 24-volt power supply. • Controller PCA. 5E Powerfail clear path • Check that all paths are clear. • Test the vertical path sensor operation. 5F Powerfail restore cartridges • A cartridge was physically moved after powerfail and before powerfail recovery. • Check that no cartridges have been moved. 60 Repeater Controller • Check cables between the controller PCA and the SCSI repeater PCA. • Change repeater PCA • Change controller PCA • Change internal SCSI cable

4–24 EK–MOL80–SV. B01 Table 4–3 Hardware Errors and Recovery Procedures (continued) Error Code Error Description Recovery Procedures (hex.) 61 External SCSI cables • Check for correct terminator (single-ended or differential) for the type of SCSI interface chosen. • Check that single-ended / differential slide switch is selecting desired interface. • Change external SCSI cable • Change SCSI repeater PCA • Change controller PCA 80 LAN timeout • Power cycle the jukebox. • Listen for the tone signaling that the LAN module CPU has initialized. Listen for the sounds made by the system disk loading the application software. If the same problem reappears, call the Response Center. 81 NFS error • see error code 80 82 File system error • see error code 80

EK–MOL80–SV. B01 4–25 Table 4–4 Micro-Move IDs ID (hex.) Description 1 Move picker transport up. Fast. 2 Move picker transport down. Fast. 3 Move picker transport up slowly, looking for resistance. Used in vertical find home sequence. 4 Move picker transport down slowly, looking for resistance. Used in vertical find home sequence. 5 Move a small amount upward, to relieve tension in the servos. Used after finding "home" in the vertical find home sequence. 6 Make a small vertical movement as a plunge is made into a drive. Used to "wiggle" the picker during error recovery. 8 Move picker transport up to the top of the jukebox, checking for a clear path. Used in the vertical find home sequence. 9 Move picker transport to the bottom of the jukebox, checking for a clear path. Used in the vertical find home sequence. 11 Move slowly up far enough to establish that there is enough room to flip the picker. Used in the plunge find home sequence. 12 Move slowly down far enough to establish that there is enough room to flip the picker. Used in the plunge find home sequence. 13 Move slowly to the flip clear area (determined in micro-moves 11 and 12). Used in the plunge find home sequence. Also used in power fail recovery to move the picker off of a cartridge that may have been between the picker and the magazines when the power failed and the picker settled. 14 Move slowly downward to the flip clear area (determined in micro-moves 11 and 12). Used in the plunge find home sequence. 15 Move vertically to restore the picker to the position it had before an error (and error recovery, occurred. Only called in error recovery. 16 Move up. Used in the motor test during power up. 17 Move down. Used in the motor test during power up. 62 Move slowly to one side of the translate frame. Used to find translate home during power up. Movements after power up use the translate home ID, 63.

4–26 EK–MOL80–SV. B01 Table 4–4 Micro-Move IDs (continued) ID (hex.) Description 63 Move to one side of the translate frame. Used to find translate home. 67 Move a short distance back from the plunge position where an overforce shutdown error occurred. Relaxes the tension. 68 Retract the plunge assembly on the picker all the way back to find "home" in the plunge axis. May start a flip, depending on starting position. (One of three plunge find homes in the sequence; 68, 69, 6A). 69 Retract the plunge assembly on the picker all the way back and flip the picker at the same time. Used to find "home" in the plunge axis. (One of three plunge find homes in the sequence; 68, 69, 6A). 6A Retract the plunge assembly on the picker all the way back and then flip the picker. Used to find "home" in the plunge axis. Second flip of the sequence. (One of three plunge find homes in the sequence; 68, 69, 6A). 6B Plunge toward magazine to get cartridge. 6C First time plunge into magazine (first "get"). Feels for resistance to learn the distance to the cartridge when it is seated. 6D Retraction to pull the cartridge out of the magazine. 6F First part of a two-step move to put a cartridge into a magazine. Puts the cartridge nearly all the way in. Next part of move is micro-move 70. 70 Second part of a two-step move to put a cartridge into a magazine. Continues movement of micro-move 6F and puts the cartridge in the rest of the way (distance learned in micro-move 6C). 71 First time plunge into a magazine (first "put"). Feels for resistance to learn the distance to the cartridge when it is seated. 72 Retract picker plunge assembly after putting cartridge into a magazine. Assembly is retracted just far enough that the thumbs are clear of the picker vertical path. 75 First part of a two-step plunge move to put a cartridge into a drive. Cartridge is inserted to a point where the drive shutter arms start to engage. 76 First time "put" plunge into a drive. Slow. Feels for resistance to learn the distance to the cartridge when it is seated.

EK–MOL80–SV. B01 4–27 Table 4–4 Micro-Move IDs (continued) ID (hex.) Description 77 First time "get" plunge into a drive. Slow. Feels for resistance to learn the distance to the cartridge when it is seated. 78 Fast "put" plunge into a drive (distance has been previously learned). 79 Retract picker plunge assembly after putting cartridge into drive. Assembly is retracted just far enough to that the thumbs are clear of the picker vertical path. 7C (Used in an emergency cartridge eject). Plunge toward a drive, stopping at a position close to the drive. This the wait position until the drive ejects the cartridge. 7D (Used in an emergency cartridge eject). Plunge to contact and get the cartridge from the drive. Follows micro-move 7C. 7E Log ID (no motion). Logs that picker is in position in front of drive, waiting for the drive to eject the cartridge. 7F Plunge forward to get cartridge from the drive. Thumbs wrap over the ears on the cartridge. 80 Retract a small amount o take up the slack between the picker thumbs and the cartridge ears. 81 Retract plunge assembly fully back into the picker. 83 Flip during plunge when cartridge is in the top picker. 84 Flip during plunge when cartridge is in the bottom picker. 87 Short plunge out to test for a cartridge in the picker. If a cartridge is in the picker, the path clear beam will be interrupted. Used in an ISTAT. 88 Short plunge out to test for a cartridge in a magazine when the picker contains a cartridge. If resistance is felt, this is interpreted as a cartridge in the magazine. Used in an ISTAT. 89 Retract picker plunge assembly into the picker after executing micro-move 88. Used in an ISTAT. 8A Short plunge to test for a cartridge in a drive when the picker contains a cartridge. If resistance is felt, this is interpreted as a cartridge in the drive. Used in an ISTAT. 8B Plunge out. Used in error recovery. Is an attempt to push a cartridge out of the vertical picker path and into a magazine.

4–28 EK–MOL80–SV. B01 Table 4–4 Micro-Move IDs (continued) ID (hex.) Description 8C Retract thumbs back into the picker. Used in error recovery. Is an attempt to pull a cartridge out of the vertical picker path and into the picker. Either this micro-move or micro-move 8D is used, depending on position of the picker at the start of recovery. 8D Retract thumbs back into the picker. Used in error recovery. Is an attempt to pull a cartridge out of the vertical picker path and into the picker. Either this micro-move or micro-move 8C is used, depending the on the position of the picker at the start of recovery. 8E Move picker plunge assembly out to rearm the picker mechanism before switching active picker. 8F Retract picker plunge assembly to a point just short of tripping the thumb selection mechanism. First of two steps (second step is micro-move 90). 90 Retract picker fingers all the way back. Trips the mechanism that makes the opposite thumb "active." 91 Move picker plunge assembly forward, away from the full retracted position. Clears the tripping mechanism and makes the new thumb "active." 92 to 95 Factory use only. Does not run in normal operating code. 98 to 9F Factory use only. Does not run in normal operating code. A2 First of two plunge movements toward the drive during error recovery. Vertical movement is done before the second part of this movement (micro-move A3) is done. A3 Second of two plunge movements toward the drive during error recovery. Done after a small vertical movement is done to "wiggle" the picker. A4 Plunge out. Is an attempt to clear the vertical picker path during drive error recovery. A5 Retract picker. Is an attempt to clear the vertical picker path during drive error recovery. A5 First part of a two-step move to fully retract the picker plunge assembly. Retract assembly almost all the way back. Next part of move is micro-move A6.

EK–MOL80–SV. B01 4–29 Table 4–4 Micro-Move IDs (continued) ID (hex.) Description A6 Second part of a two-step move to fully retract the picker plunge assembly. Continues movement of micro-move A5 and brings picker plunge assembly all the way back. A7 Move picker plunge assembly forward a small amount from full retracted position. Completes rearm of the picker mechanism. A8 Move to a position where the picker thumb sensor can be read. Used in the find plunge home recalibration. A9 Move to a position where the current active picker can be read. Used in the plunge home recalibration. AA Fully retract picker plunge assembly to switch the active picker. One of three moves used to make the top picker the active picker during a picker recalibration. AB Move picker plunge assembly forward a small amount to complete the rearm of the picker mechanism. One of three moves used to make the top picker the active picker during a picker recalibration. AC Move picker plunge assembly forward to normal position after a active picker has been change by micro-moves AA and AB. One of three moves used to make the top picker the active picker during a picker recalibration. AD Move the picker plunge assembly a small amount away from the flip mechanism so that the mechanism is rearmed for a flip. Used in a flip sequence. AE Move the picker plunge assembly out a small amount from the full retracted position to relieve the pressure on the mechanism after a flip. AF First of two moves to move the thumb to the magazine during an ISTAT when no cartridge is in the picker. Next move is micro- move B0. B0 Second of two moves to move the thumb to the magazine during an ISTAT when no cartridge is in the picker. Slow move to check for an overforce (cartridge in the magazine slot). B1 Retract picker plunge assembly back into the picker to a point where the thumbs can unsplay. Used during an ISTAT, with no cartridge in the picker, when the thumbs are splayed and are they must be unsplayed.

4–30 EK–MOL80–SV. B01 Table 4–4 Micro-Move IDs (continued) ID (hex.) Description B2 Retract picker plunge assembly into the picker to a point just short of where the thumbs would be released and unsplay. Used during an ISTAT, with no cartridge in the picker, when the thumbs are splayed and must be kept splayed. B3 Retract picker plunge assembly back far enough to release the thumbs and let them go to an unsplayed position. Used during an ISTAT, and the thumbs are being returned to an unsplayed position after contacting, grabbing, and replacing the first cartridge. B4 Retract picker plunge assembly into the picker to a point just short of where the thumbs would be released and unsplay. Used during an ISTAT, and the thumbs are being retained in the splayed position after contacting, grabbing, and replacing the first cartridge. B5 Retract picker plunge assembly far enough to get the thumbs out of the vertical picker path. Used during an ISTAT, no cartridge in the picker, and no cartridge was contacted in the first magazine. B6 Pull picker plunge assembly fully back to rearm a "put." Enable the picker to replace the cartridge it picked up during an ISTAT. B7 First of two moves that put a cartridge back into the magazine after the cartridge is detected during an ISTAT. Moves the cartridge almost fully into the magazine. Followed by micro-move B8. B8 Second of two moves that put a cartridge back into the magazine after the cartridge is detected during an ISTAT. Moves the cartridge fully into the magazine. B9 Second of two moves to test for the presence of a cartridge in a magazine during an ISTAT when there is a cartridge in the picker. Slow move to check for an overforce (cartridge in the magazine slot). Follows micro-move BA. BA First of two moves to test for the presence of a cartridge in a magazine during an ISTAT when there is a cartridge in the picker. Fast plunge that places the en of the cartridge in the picker close to the magazine. Followed by micro-move B9. BB Testing for media in picker. After the physical force check.

EK–MOL80–SV. B01 4–31 Table 4–4 Micro-Move IDs (continued) ID (hex.) Description BC Retract picker plunge assembly after detecting a cartridge in the drive. Used in an ISTAT when there is a cartridge in the picker. BD Retract picker plunge assembly to a point just short of where the thumbs would be released from their splayed position. Used if thumbs are splayed after checking magazines in an ISTAT. BE Retract picker plunge assembly after inserting a cartridge into a drive. BF Quickly retract the picker plunge assembly if an error occurred while inserting a cartridge into a drive. C0 Retract picker plunge assembly to a point where the thumbs are released and go to an unsplayed position. Used in an ISTAT. C1 Insert cartridge into a drive, just past the shutters. Distance has not been learned. C2 Insert cartridge into a drive, just past the shutters. Distance has not been learned. Part one of a two-stage move. Used in the sequence to return a cartridge into a drive after an emergency eject during an ISTAT. C3 Insert cartridge into a drive, just past the shutters. Distance has been learned. Part one of a two-stage move. Used in the sequence to return a cartridge into a drive after an emergency eject during an ISTAT. C4 Insert cartridge fully into a drive. Distance HAS been learned. Part two of a two-stage move. Used in the sequence to return a cartridge into a drive after an emergency eject during an ISTAT. C5 Insert cartridge fully into a drive. Distance HAS been learned. Additional push in case the drive acknowledge signal was not seen. Used in the sequence to return a cartridge into a drive after an emergency eject during an ISTAT. C6 Insert cartridge fully into a drive. Distance HAS been learned. Part two of a two-stage move. Used in the sequence to return a cartridge into a drive after an emergency eject during an ISTAT.

4–32 EK–MOL80–SV. B01 Table 4–4 Micro-Move IDs (continued) ID (hex.) Description C7 Retract picker to rearm position to splay the fingers. Used when an error in the drive acknowledge signal is seen and a drive eject will be done and the thumbs must be in the splayed position. C8 Plunge thumbs out close to the end of the picker to get ready to "get" a cartridge. Done at the same time as vertical moves and intransit translates and flips. C9 Same as micro-move C8 but is a retry (if needed) CB Retract picker plunge assembly back far enough to clear the thumbs from the vertical picker path. Used after a cartridge is put in the mailslot. CC Plunge out to clear the mailslot path. Distance has not been learned. Used in error recovery. CD Short plunge out to fully seat a cartridge in the mailslot and to measure the distance of a fully-inserted cartridge. CE Plunge out to clear the mailslot path. Used in error recovery. CF Retract picker plunge assembly in an attempt to clear the mailslot path. Used in error recovery. DO Short plunge to push the cartridge to a fully seated position during a "get" to the mailslot. Distance is learned. D1 Short plunge during a mailslot "put." Ducks under the mailslot rotation mechanism and positions the picker so it can move up all the way to mailslot insertion position. D2 Short plunge to put the cartridge all the way into the mailslot. D3 Short plunge during a mailslot "get". Ducks under the mailslot rotation mechanism and positions the picker so it can move up all the way to the mailslot "get" position. D4 Plunge to get the cartridge from the mailslot. D5 Retract cartridge most of the way into the picker. Positions the picker so that it can duck under the mailslot rotation mechanism during a "get." D6 Continue retraction in micro-move D5. Pull cartridge all the way back into the picker. D7 Retract thumbs to a point just inside the picker. Used to clear the vertical picker path during error recovery.

EK–MOL80–SV. B01 4–33 Table 4–4 Micro-Move IDs (continued) ID (hex.) Description D8 Plunge to a position where the mailslot rotation actuator can be pulled in. D9 Plunge to a position where the mailslot rotation actuator can be pushed out. DA Move picker plunge assembly to a position where the mailslot rotation actuator can be engaged to rotate the mailslot out. Used when the state of the mailslot is unknown and must be placed in a known state. DB Retract the picker plunge assembly a short distance to clear the thumbs away from the mailslot after rotating the mailslot out. DC Slow retract of the picker plunge assembly, pulling the mailslot in. Checks that the cartridge is in properly. First move of a rotate in. DD Retract thumbs back into the picker after rotating mailslot out. E1 First of two moves rotating the mailslot in. Quickly retract the picker plunge assembly, pulling the mailslot most of the way in. Followed by micro-move E3. E2 Plunge out to rotate the mailslot almost all the way out. E3 Short retraction of the picker plunge assembly until pressure is felt. Used at end of rotating the mailslot in and ensures that the mailslot has been rotated fully in. E4 Short plunge out to relieve the pressure after rotating the mailslot in. E5 Short plunge out, feeling for pressure, to ensure that the mailslot is rotated all the way out. E6 Retract picker plunge assembly a short distance to relieve the pressure after micro-move E5. E7 On power up, testing for motion in one direction on the plunge motor. E8 On power up, testing for motion in the plunge motor. Opposite direction than in micro-move E7. E9 Plunge out to clear the picker vertical path. Used when path is blocked during power up. EA Picker plunge assembly retraction to clear the picker vertical path. Used when path is blocked during power up.

4–34 EK–MOL80–SV. B01 Running an Internal Test CAUTION Some diagnostic tests can corrupt the file system if a test is not properly completed. 1. With READY displayed, press NEXT until ADMIN* appears in the display window. NOTE A three-part security code is required to access any options beneath ADMIN. The security code is set to 0,0,0 at the factory, but you should encourage the customer to change this as soon as possible to avoid access by unauthorized persons. 2. Press ENTER. CODE1 and a flashing 0 displays. Press ENTER if no security code has been set, otherwise press NEXT until the first number of the security code displays, and then press ENTER. Repeat this step to enter the next two parts of the security code. 3. TEST* displays. Press ENTER. 4. Press NEXT until the name of the test you wish to run displays and then press. Descriptions of the available internal tests are on the following pages. Table 4–5 Available Internal Tests for the RW551 and RW552 Test Name Description EXCHANGE DEMO DO NOT RUN THIS TEST!! This test moves randomly-chosen cartridges to random storage slot locations. Do not run this test if the jukebox contains disks with actual file system data on them. This test displays FAIL if there are no disks in the jukebox or if all storage slots are full. The drives and mailslot must be empty. INIT MECHANICS Runs the FIND PLUNGE HOME, FIND VERTICAL HOME, FIND XLATE HOME, INIT ELEM STATUS tests, and then rotates the mailslot out. Each test is run one time per test loop.

EK–MOL80–SV. B01 4–35 Table 4–5 Available Internal Tests for the RW551 and RW552 (Continued) Test Name Description INIT ELEM STATUS Functions the same as the SCSI Initialize Element Status command. This test physically scans the entire unit to determine which storage slots contain disks and if the drives contain disks. MAGAZINE IO Makes a combination of moves with a PASS/FAIL result. It moves an optical disk from a randomly-chosen full slot to a randomly-chosen empty slot, with a random flip. It then moves the disk back to its original storage slot with its original orientation. This test displays FAIL if there are no disks in the jukebox or if all storage slots are full. The drives and mailslot must be empty. DRIVE IO Makes a combination of moves with a PASS/FAIL result. It moves an optical disk from a randomly- chosen full slot to a randomly-chosen drive, with a random flip. It then moves the cartridge back to its original slot with its original orientation. This test displays FAIL if there are no disks in the jukebox or if all storage slots are full. The drives and mailslot must be empty. MAILSLOT IO Makes a combination of moves with a PASS/FAIL result. It moves an optical disk from the lowest- numbered full slot to the mailslot with a random flip. It then moves the cartridge back to its original slot with its original orientation. This test displays FAIL if there are no disks in the jukebox or if all storage slots are full. The drives and mailslot must be empty. VERTICAL TEST Moves the disk transport mechanism up and down the full length of the rail. Returns PASS/FAIL. No cartridges are required. TRANSLATE TEST Translates from side to side. No cartridges are required. FLIP TEST Makes a combination of moves with a PASS/FAIL result. It does several flips at various locations. No cartridges are required. PICKER TEST Flips the disk transport mechanism and switches active thumbs. No cartridges are required.

4–36 EK–MOL80–SV. B01 Table 4–5 Available Internal Tests for the RW551 and RW552 (continued) Test Name Description FIND PLUNGE HOME Runs mechanism recalibration, establishes which picker side is up, and determines the reference points in the picker travel path. This test assumes that the mechanics and servo system are functional. No cartridges are required. FIND VERT HOME Recalibrates the vertical position and verifies that the vertical path is clear. No cartridges are required. FIND XLATE HOME Calibrates the translate position. No cartridges are required VERTICAL ENCODER Moves the disk transport mechanism down, then moves it back up a short distance, and then moves it back down. The last time the disk transport mechanism is moved down the number of encoder counts are verified. Returns PASS/FAIL. No cartridges are required. CAUTION Use extreme caution when running the next three tests. EMPTY DRIVES Moves cartridges out of the drive mechanism(s) and returns them to their storage slots, if locations are known. EMPTY PICKER Moves an optical disk from the disk transport mechanism to its home storage slotlocation if that location is known, otherwise the disk is placed into the first available empty storage slot. FILL PICKER Moves an optical disk into the disk transport mechanism from the first storage slot containing a disk. This test must be run twice to fill both slots in the transport mechanism. EXERCISE MECHANICS Runs the VERTICAL TEST, TRANSLATE TEST, FLIP TEST, MAGAZINE IO, DRIVE IO, and MAILSLOT IO tests. Each test is run one time per test loop.

EK–MOL80–SV. B01 4–37 Table 4–5 Available Internal Tests for the RW551 and RW552 (continued) Test Name Description WELLNESS TEST Checks out the general capability of the jukebox. Requires one loaded cartridge; drives and mailslot must be empty. Runs INIT MECHANICS and EXERCISE MECHANICS. Each test is run one time per test loop. CLEAR SOFT LOG Sets the soft error log to zero. CLEAR HARD LOG Sets the hare error log to zero. PLUNGE FULL SPD Allows the disk transport mechanics to be run at full speed. This configuration should always be used under normal circumstances. PLUNGE 1/2 SPD Allows the disk transport mechanics to be run at half speed. Use this configuration for diagnostic purposes only. PLUNGE 1/4 SPD Allows the mechanics to be run at quarter speed. Use this configuration for diagnostic purposes only. STARWARS The display shows 0 0. Each "0" indicates one of the paths that the disk transport mechanism follows in front of each stack of cartridges. If the path is clear, a "0" is displayed; if the path is blocked (because of an optical disk that is not inserted fully into its storage slot for example), an "*" will be displayed. BOTTOM THUMB Reports THUMB A, THUMB B, or NO THUMB. Looks at the top and bottom thumb sensors and reports whether the thumbs on the disk transport mechanism are in the forward or back position. If THUMB A or THUMB B is returned, one of re-turned, both thumbs re in the back position. This configuration should be used by authorized service representatives only.

4–38 EK–MOL80–SV. B01 Table 4–5 Available Internal Tests for the RW551 and RW552 (continued) Test Name Description TOP THUMB Reports ON or OFF. Looks at the top thumb sensor which reports whether or not the thumb that is currently on the top side of the disk transport mechanism is in the forward position. If ON is reported the thumb is in the back position; if OFF is reported the thumb is in the forward position. This configuration should be used by authorized service representatives only. TRANSLATE SENSOR Reports ON or OFF after looking at the translate sensor. Optical Disk Cleaning–All Jukeboxes CAUTION Data may be lost as a result of scratches introduced during optical disk cleaning. Cleaning optical disks is not a preventive maintenance procedure and should not be attempted unless disks are obviously dirty. Cleaning a disk is a last resort to recover data. Every effort should be made to instruct the customer of the importance of placing the jukeboxes at locations that do not have a high concentration of airborne dust. A clean environment is especially important if the customer's applications cause optical disks to remain in the drives with the drive's shutter open.

EK–MOL80–SV. B01 4–39 A failure to read a disk may result from: • hardware failure • contamination of the disk surface • contamination of the drive objective lens In a service situation where contaminated disks may be a problem, ensure first that failures are not caused by another, perhaps a hardware failure. On an otherwise working drive, check to see that the most current firmware code level is being used and/or that all applicable service notes have been done. The following are recommendations for preventing contamination of disks and the disk drive: • Place the jukebox away from high traffic areas. • Do not leave a disk in the drive for extended periods of time if possible. • Do not use the jukebox in “dirty” environments. NOTE SCSI-connectjukeboxes If the problem appeared as loss of performance and cleaning the disk solved the problem, another couple of steps must be done to regain performance using that disk. As performance was declining because of read/write problems, the disk was probably becoming fragmented through excessive “sparing”. To regain performance, the data on each side of the disk should be stored, each side of the disk reformatted, and the data restored back on the disk. LAN-connect jukeboxes No additional actions need to be taken. The server software automatically moves the data to a new disk and removes the effects of sparing. It does this through the Automated LAN Jukebox Maintenance program.

4–40 EK–MOL80–SV. B01 Cleaning Tools Available CAUTION Data may be lost as a result of scratches introduced during optical disk cleaning Cleaning optical disks is not a preventive maintenance procedure and should not be attempted unless disks are obviously dirty. Cleaning a disk is a last resort to recover data. Every effort should be made to instruct the customer of the importance of placing the jukeboxes at locations that do not have a high concentration of airborne dust. A clean environment is especially important if the customer’s applications cause optical disks to remain in the drives with the drive’s shutter open. Disks may be cleaned with the Optical Disk Cleaning Kit (C1700-88800). This kit contains swabs and alcohol, cleaning instructions, and a special cartridge holder that keeps the sliding sleeve open. CAUTION Never attempt to clean the optical drive objective lens! Although disk drive cleaning kits are available, they are not approved for use with the drive in this jukebox and could damage the optical drive mechanism. Using the Eject Tool to Remove a Disk From the Drive The optical drive mechanism does not automatically eject a disk from the drive if a power failure occurs. If you need to manually remove a disk from a drive with no power, you must use the eject tool. If you do not have an eject tool for the RWZ52 optical drive, you may order one of these: • Hewlett-Packard part number - C1701-88803 • Marshall Industries part number - R3322

EK–MOL80–SV. B01 4–41 You may also use a small flat-head screwdriver with the following dimensions: Length: 50 mm Width: 2.45 mm Thickness: 0.5 mm A disk can be removed from the drive while the drive is still secured in the autochanger. Follow the service access procedures in Chapter 5 to access the front of the drive mechanism, and then do the following steps to remove a disk from the drive: 1. Disconnect power to the drive if you have not done so already. 2. Insert the eject tool into the small round hole in the front panel of the drive. 3. Turn the eject tool in a clockwise direction (approximately 20 complete rotations) until the disk is ejected through the front of the drive. CAUTION Do not reach into the drive to get the disk. Wait until the disk is ejected through the front of the drive before removing it. Premature removal of the disk could damage the drive.

Chapter 5 contains removal and replacement procedures. Contents Service Access ................................................................................................5–4 Replacing the Power Supplies .......................................................................5–11 Replacing the Mailslot Assembly ..................................................................5–12 Replacing the Control Panel Assembly..........................................................5–13 Replacing an Optical Drive ...........................................................................5–14 Replacing the Interposer PCA ....................................................................... 5–16 Replacing a Cooling Fan ...............................................................................5–16 Replacing the Picker .....................................................................................5–17 Removing/Replacing the Transport Frame ....................................................5–21 Removing/Replacing the Encoder Strip.........................................................5–27 Replacing the Vertical Motion Motor............................................................5–28 Replacing the Vertical Motion Gear Box.......................................................5–30 Replacing the Controller PCA.......................................................................5–35 Replacing the Internal SCSI Cable ................................................................5–37 Replacing the SCSI Interface PCA ................................................................5–38 Re-initializing the Jukebox Controller PCA RAM After Service ...................5–40 Field Replaceable Units (FRU) in the (Medium) Library...............................5–42 Recommended Service Kits...........................................................................5–44 Miscellaneous ...............................................................................................5–52

5–2 EK–MOL80–SV. B01 Field-Replaceable Assemblies WARNING DO NOT DISASSEMBLE the optical drive mecha- nism. The optical drive mechanism becomes a Class 3B laser device when disassembled. If the drive is disassembled, exposure to the invisible laser beam and hazardous invisible laser radiation could result in blindness. NOTE An optical drive that has been disassembled will not be accepted as an exchange assembly. ESD Precautions The optical disk jukebox contains very sensitive electrical components. It is EXTREMELY IMPORTANT that you follow the proper procedures for pre- venting ESD (Electrostatic Discharge). Use wrist-grounding straps, anti-static mats, and anti-static work stations when removing and replacing the major as- semblies. CAUTION Failure to follow proper procedures could lead to intermittent failures and/or premature hard failures in the disk controller and mechanism. Tools Required The following tools are needed for assembly/disassembly of the jukebox: • Torx® driver with the following bits: T-10, T-15, T-25 • needle-nosed pliers • Pozidriv® magnetized screwdriver • flatblade screwdriver

EK–MOL80–SV. B01 5–3 Disassembly/Reassembly Procedures (SCSI-Connect Version) WARNING Disconnect the power cord before taking the juke- box apart to prevent possible electrical shock. CAUTION For SCSI-bus jukeboxes: Do not switch off power to the jukebox until you are sure the SCSI bus is inactive. Switching off the jukebox when the SCSI bus is active can cause data loss and/or indeterminate bus states. For all jukeboxes: When servicing the jukebox, be sure that disk cartridges are not moved from their original slot locations. If you need to remove the cartridges, record their SLOT LOCATIONS and ORIENTATION so they can be replaced to their ORIGINAL positions. Failure to follow this practice results in a serious loss of file system integrity.

5–4 EK–MOL80–SV. B01 Service Access Right and Left Lower Access Panels: Figure 5–1 Right Lower Access Panel 1. Switch off the power to the jukebox by placing the power standby switch to OFF (0) on the right side. 2. Unplug the power cord from the power source. 3. Remove the T-20 screw that holds the bottom edge of the panel. 4. Lift panel up and out. (Internally, the panel rests on four retaining pins). 5. Use the same procedure for the left access panel (except there is no screw).

EK–MOL80–SV. B01 5–5 Rear Access Panel: Figure 5–2 Rear Access Panel 1. Remove the seven T-20 screws around the outer edge of the panel. 2. Remove the single screw underneath the bottom of the panel. 3. Rotate the back panel back and lift if off the frame.

5–6 EK–MOL80–SV. B01 Front Left and Front Right Panels: Figure 5–3 Center Cover Mounting Screw For either or both panels: 1. Remove the four T-20 mounting screws from the panel. Two screws are lo- cated under the bottom front edge of each panel and two screws are located on the rear of each panel. 2. Remove one T-20, sheet metal screw located under the rear edge of the top, plastic, center cover. Pull the top plastic center cover towards the rear to unlock tabs connecting it to the front plastic cover.

EK–MOL80–SV. B01 5–7 Figure 5–4 Positioning the Control Display Before Removing the Panel For the front right panel (control panel side) NOTE Before removing the front right panel, the control panel must be positioned correctly to clear the chassis. Rotate the control panel so that the display faces the right end of the jukebox.

5–8 EK–MOL80–SV. B01 Figure 5–5 Accessing the Underside of the Control Panel 3. Remove the T-20 screw that holds the control panel access plate. The right side of the baffle is held by a tab fitting into a slot in the mailslot housing. To remove, rotate the left side of the panel back and away. 4. Disconnect the control panel ribbon cable. 5. Disconnect the power plug.