Keysight N5225-60142 Manual 

PNA Direct Digital Synthesizer (DDS) For Version 7 Synthesizers - Upgrade Kit This manual provides documentation for the following models: To Upgrade 2-Port B models to 2-Port B models with DDS N5224BU-2S7 (for N5224B), N5225BU-2S7 (for N5225B), N5227BU-2S7 (for N5275B), N5244BU-2S7 (For N5244B), N5245BU-2S7 (For N5245B), and N5247BU-2S7 (For N5247B) Upgrade Kit Number: N5225-60142

2007-2021 No part of this manual may be reproduced in any form or by any means (including electronic storage and retrieval or translation into a foreign language) without prior agreement and written consent from Keysight Technologies, Inc. as governed by United States and international copyright laws. Trademark Acknowledgments Manual Part Number N5225-90142 Edition Edition 1, January 14, 2021 Supersedes: January 2021 Printed in USA/Malaysia Published by: Keysight Technologies 1400 Fountaingrove Parkway Santa Rosa, CA 95403 Warranty THE MATERIAL CONTAINED IN THIS DOCUMENT IS PROVIDED “AS IS,” AND IS SUBJECT TO BEING CHANGED, WITHOUT NOTICE, IN FUTURE EDITIONS. FURTHER, TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, KEYSIGHT DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED WITH REGARD TO THIS MANUAL AND ANY INFORMATION CONTAINED HEREIN, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. KEYSIGHT SHALL NOT BE LIABLE FOR ERRORS OR FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES IN CONNECTION WITH THE FURNISHING, USE, OR PERFORMANCE OF THIS DOCUMENT OR ANY INFORMATION CONTAINED HEREIN. SHOULD KEYSIGHT AND THE USER HAVE A SEPARATE WRITTEN AGREEMENT WITH WARRANTY TERMS COVERING THE MATERIAL IN THIS DOCUMENT THAT CONFLICT WITH THESE TERMS, THE WARRANTY TERMS IN THE SEPARATE AGREEMENT WILL CONTROL. Technology Licenses The hardware and/or software described in this document are furnished under a license and may be used or copied only in accordance with the terms of such license. U.S. Government Rights The Software is “commercial computer software,” as defined by Federal Acquisition Regulation (“FAR”) 2.101. Pursuant to FAR 12.212 and 27.405-3 and Department of Defense FAR Supplement (“DFARS”) 227.7202, the U.S. government acquires commercial computer software under the same terms by which the software is customarily provided to the public. Accordingly, Keysight provides the Software to U.S. government customers under its standard commercial license, which is embodied in its End User License Agreement (EULA), a copy of which can be found at http://www.keysight.com/find/sweula The license set forth in the EULA represents the exclusive authority by which the U.S. government may use, modify, distribute, or disclose the Software. The EULA and the license set forth therein, does not require or permit, among other things, that Keysight: (1) Furnish technical information related to commercial computer software or commercial computer software documentation that is not customarily provided to the public; or (2) Relinquish to, or otherwise provide, the government rights in excess of these rights customarily provided to the public to use, modify, reproduce, release, perform, display, or disclose commercial computer software or commercial computer software documentation. No additional government requirements beyond those set forth in the EULA shall apply, except to the extent that those terms, rights, or licenses are explicitly required from all providers of commercial computer software pursuant to the FAR and the DFARS and are set forth specifically in writing elsewhere in the EULA. Keysight shall be under no obligation to update, revise or otherwise modify the Software. With respect to any technical data as defined by FAR 2.101, pursuant to FAR 12.211 and 27.404.2 and DFARS 227.7102, the U.S. government acquires no greater than Limited Rights as defined in FAR 27.401 or DFAR 227.7103-5 (c), as applicable in any technical data. Safety Notices A CAUTION notice denotes a hazard. It calls attention to an operating procedure, practice, or the like that, if not correctly performed or adhered to, could result in damage to the product or loss of important data. Do not proceed beyond a CAUTION notice until the indicated conditions are fully understood and met. A WARNING notice denotes a hazard. It calls attention to an operating procedure, practice, or the like that, if not correctly performed or adhered to, could result in personal injury or death. Do not proceed beyond a WARNING notice until the indicated conditions are fully understood and met.

Upgrade Kit Numbers: N5225-60142 Installation Note Description of this Upgrade This upgrade adds direct digital synthesis capability to your microwave network analyzer. This is done by removing the existing frequency reference, 13.5 GHz synthesizer boards (x2), and installing a new direct digital synthesizer assembly. Refer to “Overview of the Installation Procedure” on page 10. This upgrade adds the following items to your N5224/5/7B or N5244/5/7B network analyzer: — direct digital synthesizer (DDS) assembly — new left outer and inner panels — new cables This repair must be done at a service center or a self-maintainer service center! Refer to “Getting Assistance from Keysight” on page 4.

Description of this Upgrade Getting Assistance from Keysight - Getting Assistance from Keysight By internet or phone, get assistance with all your test and measurement needs. Installing this upgrade kit requires special skills and experience. If you think you may not be qualified to do the work, or need advice, contact Keysight. Contacting Keysight Assistance with test and measurements needs and information on finding a local Keysight office are available on the Web at: http://www.keysight.com/find/assist If you do not have access to the Internet, please contact your Keysight field engineer. If You Have Problems With the Upgrade Kit Contents Keysight stands behind the quality of the upgrade kit contents. If you have problems with any item in the kit, refer to www.keysight.com and the Contact Keysight ( ) link. In any correspondence or telephone conversation, refer to the Keysight product by its model number and full serial number. With this information, the Keysight representative can determine whether your product is still within its warranty period.

Description of this Upgrade Getting Prepared Getting Prepared To successfully install this upgrade kit, you will need the following: — A PDF copy or a paper copy of the PNA Service Guide - refer to “Downloading the Online PNA Service Guide” on page 5 below. — An ESD-safe work area - refer to “Protecting Your Workspace from Electrostatic Discharge” below. — Correct tools - refer to “Tools Required for the Installation” on page 7. — Enough time - refer to “About Installing the Upgrade” on page 7. — Test equipment for the post-upgrade adjustments and full instrument calibration. To view the equipment list, click the Chapter 3 bookmark “Tests and Adjustments” in the PDF Service Guide1. Downloading the Online PNA Service Guide To view the Service Guide for your PNA model number, use the following steps: 1. Go to www.keysight.com. 2. In the Search box, enter the model number of the analyzer (Ex: N5247B) and click Search. 3. Click Services & Support > Document Library > Manuals or under Refine Your Results: 4. Click Manuals > Service Manual. 5. Click the service guide title to download the PDF file. 6. When the PDF of the Service Guide is displayed, scroll through the Contents section bookmarks to locate the information needed. The PNA contains extremely sensitive components that can be ruined if mishandled. Follow instructions carefully when making cable connections, especially wire harness connections. The person performing the work accepts responsibility for the full cost of the repair or replacement of damaged components. 1. See “Downloading the Online PNA Service Guide” on page 5.

Description of this Upgrade Getting Prepared - Protecting Your Workspace from Electrostatic Discharge For information, click on the Chapter 1 bookmark, "Electrostatic Discharge Protection" in the PDF of your instrument’s Service Guide on www.keysight.com1. ESD Equipment Required for the Installation 1. See “Downloading the Online PNA Service Guide” on page 5. Description Keysight Part Number ESD grounding wrist strap 9300-1367 5-ft grounding cord for wrist strap 9300-0980 2 x 4 ft conductive table mat and 15-ft grounding wire 9300-0797 ESD heel strap (for use with conductive floors) 9300-1308

Description of this Upgrade Tools Required for the Installation Tools Required for the Installation About Installing the Upgrade Description Qty T-10 TORX driver - set to 9 in-lbs (1.02 N.m) 1 T-20 TORX driver - set to 21 in-lbs (2.38 N.m) 1 5/16-in (8 mm) nutsetter or open end torque wrench - set to 10 in-lbs (1.13 N.m) 1 5/16-in (8 mm) nutsetter or open end torque wrench - set to 21 in-lbs (2.38 N.m) 1 5/16-in (8 mm) nutsetter or open end torque wrench- set to 8 in-lbs (0.9 N.m) 1 5/8-in (16 mm) nutsetter or open end torque wrench - set to 21 in-lbs (2.38 N.m) 1 Needle nose pliers 1 Flat head screwdriver 1 Use a 5/16-in torque wrench set to 10 in-lbs on all cable connections except the front and rear panel bulkhead connectors. On these, use a 9 mm nutsetter or open end torque wrench set to 21 in-lb. Products affected All N5224/5/7B, N5244/5/7B 2-port microwave network analyzers Installation to be performed by Keysight service center, personnel qualified by Keysight, or customer Estimated installation time 3 hours Estimated adjustment time 3 hours Estimated full instrument calibration time 4.5 hours

Description of this Upgrade Items Included in the Upgrade Kit - Items Included in the Upgrade Kit Check the contents of your kit against the following list. If any part is missing or damaged, contact Keysight Technologies. Refer to “Description of this Upgrade” on page 3. This section applies to multiple models and upgrade kits. Please refer to the model and upgrade kit for your instrument’s upgrade. Extra quantities of items such as protective plastic caps, screws, cable ties, and cable clamps may be included in this upgrade kit. It is normal for some of these items to remain unused after the upgrade is completed. Table 1 Contents of Upgrade Kit N5225-60142 Option 2S7 Qty Description Part Number 1 Installation Note (this document) N5225-90142 1 China RoHS Addendum 9320-6722 1 A15 – Direct digital synthesizer (DDS) assembly (Assembly contains two synthesizers) N5240-60102 1 A55 – Solid State Drive Assembly for 2.2 GHz CPU and Win10 in N52xxB N5242-60135 2 Screw-Machine with Crest-Cup-Con-Washer Pan-HD Torx-T10 M3X0.5 10mm-LG SST-300 passivated finish (x2 bracket-center, stabilizer) 0515-0374 4 Screw-Machine W/Crest-Cup-Con-Washer Pan-HD Torx-T10 M3X0.5 8mm-LG SST-300 Passivated – (x2 secure DDS to chassis) 0515-0380 1 Cable assy-RF, A15 13.5 GH (SRC 1) direct digital synthesizer (J4)-SRC 1 RF IN – W1 N5240-20124 1 Cable assy -RF, A15 15.5 GHz (LO) direct digital synthesizer (J5)-HMA RF IN – W51/W61 N5240-20125 1 Bracket-center, stabilizer, long N5240-20136 1 CA Assy, RF CA, SYNTH J11-SPAM J3 – W200 N5240-60115 1 A70/A75 LFE board to A15 DD Synth Source 1 J12 to A70 LFE J20 to A70 LFE J20 – W208 N5240-60112 1 A70/A75 LFE board to A15 DD Synth LO J13 to A70 LFE J18 – W210 N5240-60113

Description of this Upgrade Installation Procedure for the Upgrade Installation Procedure for the Upgrade The network analyzer must be in proper working condition prior to installing this option. Any necessary repairs must be made before proceeding with this installation. This installation requires the removal of the analyzer’s protective outer covers. The analyzer must be powered down and disconnected from the mains supply before performing this procedure.

Description of this Upgrade Overview of the Installation Procedure - Overview of the Installation Procedure The network analyzer must be in proper working condition prior to installing this option. Any necessary repairs must be made before proceeding with this installation. All instruments: “Step 1. Verify PNA and Erase Flash” on page 11 “Step 2. Remove the Inner and Outer covers” on page 13 “Step 3. Remove Some Cables (All Models) and Some Bottom Assemblies (Options 405, 420, and 425 Only)” on page 13 “Step 3. Remove Some Cables (All Models) and Some Bottom Assemblies (Options 405, 420, and 425 Only)” on page 13 “Step 4. Remove Some Top Cables” on page 17 “Step 5. Remove the Left and Right Inner Bracket’s #4 Card Guides” on page 19 “Step 6. Install the Center Bracket” on page 20 “Step 7. Reinstall Some Bottom Cables” on page 21 “Step 8. Reinstall the Top Assemblies A5 through A16 (Except A15 Direct Digital Synthesis (DDS) Assembly) and Cables” on page 22 “Step 9. Install *NEW* A15 Direct Digital Synthesizer (DDS) Assembly” on page 23 “Step 10. Install *NEW* and Reused Direct Digital Synthesis (DDS) Assembly Cables” on page 25 “Step 11. Route Gray Cables” on page 29 “Step 12. Remove and Replace the A55 Solid State Drive (SSD)” on page 31 “Step 13. Boot the Instrument” on page 31 “Step 14. Reinstall the Inner and Outer Covers” on page 31 “Step 15. Verify the PNA Analyzer Program is Running with the Correct Options” on page 31 “Step 16. Perform Post-Upgrade Adjustments and Calibration” on page 32 “Step 17. Prepare the PNA for the User” on page 35 This installation requires the removal of the analyzer’s protective outer covers. The analyzer must be powered down and disconnected from the mains supply before performing this procedure.

Description of this Upgrade Step 1. Verify PNA and Erase Flash Step 1. Verify PNA and Erase Flash This section verifies the PNA boots normally and if OK, deletes the flash in preparation for installing and calibrating the new synthesizer assembly. Refer to Figure 1 on page 12. 1. Turn on your PNA. 2. Verify it boots up without errors. If there are errors, refer to your instrument’s Chapter 4 "Troubleshooting" in the PDF Service Guide1. 3. If your PNA boots up normally. 4. Open the SCPI Parser Console: System > System Setup… > Remote Interface… > then click Show SCPI Parser Console 1. See “Downloading the Online PNA Service Guide” on page 5.

Description of this Upgrade Step 1. Verify PNA and Erase Flash - Figure 1 Open SCPI Parser Console

Description of this Upgrade Step 2. Remove the Inner and Outer covers 5. In the SCPI parser window: Enter the following command to erase the flash ROM: DIAGnostic:FLASH:ERASe For assistance with sending SCPI commands, refer to the PNA Help file on www.keysight.com. 6. Enter the following query to verify the flash was erased: DIAGnostic:FLASH:CATalog? 7. If the does not return any data, then power down the PNA and continue to the next step. 8. If the DIAG:FLASH:CAT? returns any data, repeat steps 5 and 6. 9. If you repeat steps 5 and 6. and still have data being returned, then refer to “Contacting Keysight” on page 4. Step 2. Remove the Inner and Outer covers For instructions, click the Chapter 7 bookmark “Removing the Covers” in the PDF Service Guide1. Step 3. Remove Some Cables (All Models) and Some Bottom Assemblies (Options 405, 420, and 425 Only) Carefully, turn the instrument so it is bottom side up on a flat surface. This section contains two sub-steps. Choose the ones that are applicable for your model’s options: — “Step 3a. Remove Some Cables (All Models)” on page 14 — “Step 3b. Remove/Reinstall Some Bottom Assemblies and Old/New Cables (LFE Models, With Options 205, and 220” on page 14 1. See “Downloading the Online PNA Service Guide” on page 5. Be careful not to damage the center pins of the semi-rigid cables. Some flexing of the cables may be necessary but do not over-bend them. Leave the gray flexible cables, the wire harnesses, and the ribbon cables connected where possible. Any that are removed should be labeled for reconnection later.

Description of this Upgrade Step 3. Remove Some Cables (All Models) and Some Bottom Assemblies (Options 405, 420, and 425 Only) - Step 3a. Remove Some Cables (All Models) 1. Place the analyzer bottom-side up on a flat surface. 2. Remove the following cables. To see an image showing the location of these cables, click the Chapter 6 bookmark “Bottom RF Cables, Standard 2-Port Configuration [for your option]” in the PDF Service Guide1. 3. These cables may be discarded - they will not be reinstalled. Remove one end of W51 (N5224/5B and N5244/5B)/W61 N5227B and N5247B. The top-side end is disconnected in the “Step 4. Remove Some Top Cables” on page 17. — N5224/5B and N5244/5B: W51 (N5245-20101) A15 13.5 GHz (LO) synthesizer board J1207 to A25 HMA26.5 — N5227B and N5247B: W61 (N5247-20110) A15 13.5 GHz (LO) synthesizer board J1207 to A25 HMA26.5 Step 3b. Remove/Reinstall Some Bottom Assemblies and Old/New Cables (LFE Models, With Options 205, and 220 This step contains the following sub-steps: — “A. Remove the A19 Test Set Motherboard” on page 14 — “B. Remove Some LFE Board Flexible Cables” on page 15 — “C. Install Some *New* LFE Cables” on page 16 — “D. Reinstall Test Set Motherboard” on page 16 A. Remove the A19 Test Set Motherboard Refer to your Service Guide’s "Removing and Replacing the A19 Test Set Motherboard" section. Set aside all hardware for reuse. 1. See “Downloading the Online PNA Service Guide” on page 5. N5224/5B and N5244/5B: This same W51 reference designator is assigned to the S7 upgrade cable N5240-20125. N5227B and N5247B: This same W61 reference designator is assigned to the S7 upgrade cable N5240-20125. IMPORTANT! If your box does not have of the LFE options installed, Option 205 or 220 skip this sub-step.

Description of this Upgrade Step 3. Remove Some Cables (All Models) and Some Bottom Assemblies (Options 405, 420, and 425 Only) B. Remove Some LFE Board Flexible Cables Remove the cables as shown in Figure 2 on page 15. The top-side end of the cables is removed later. These cables can be discarded. Figure 2 Remove One End of LFE Bottom-side Cables (N5245-60027, N5242-60080)

Description of this Upgrade Step 3. Remove Some Cables (All Models) and Some Bottom Assemblies (Options 405, 420, and 425 Only) - C. Install Some *New* LFE Cables Reinstall the following LFE cables as shown in Figure 3 on page 16. The top-side end of the cables is installed later. Figure 3 Install the Bottom-side End of the *NEW* LFE Cables (N5240-60112, N5240-60113) D. Reinstall Test Set Motherboard Refer to your Service Guide’s "Removing and Replacing the A19 Test Set Motherboard" section. Reuse the hardware that was set aside.

Description of this Upgrade Step 4. Remove Some Top Cables Step 4. Remove Some Top Cables Carefully turn the PNA so it is top-side up for this step. Refer to your Service Guide’s "Removing and Replacing the A4–17 Boards" section. Set aside all hardware for reuse. Exceptions (See also, note below): The following cables are not reused: — W1 (N5222-20066) A4 13.5 GHz synthesizer board (source) (1) J1207 to A5 26.5 GHz source (1) board P1 — W2 (N5222-20090) A17 13.5 GHz source (2) synthesizer J1207 to A10 source (2) P1. (On 2-port models, W2 is included only with Opt. 224.) — W74 (N5242-60027) (N5224/5B and N5244/5B Only) A14 frequency reference board J4 to A16 SPAM board J3 — W84 (N5242-60027) (N5227B and N5247B Only) A14 frequency reference board J4 to A16 SPAM board J3 — W75 (N5242-60028) (N5224/5B and N5244/5B Only) A14 frequency reference board J5 to bottom of A15 13.5 GHz (LO) synthesizer board J5 — W85 (N5242-60028) (N5227B and N5247B Only) A14 frequency reference board J5 to bottom of A15 13.5 GHz (LO) synthesizer board J5 — W76 (N5242-60029) (N5224/5B and N5244/5B only) A14 frequency reference board J6 to bottom of A5 13.5 GHz (source 1) synthesizer board J5 — W86 (N5242-60029) (N5227B and N5247B only) A14 frequency reference board J6 to bottom of A5 13.5 GHz (source 1) synthesizer board J5 — W77 (N5242-60030) (N5224/5B and N5244/5B only) A14 frequency reference board J7 to A13 13.5 GHz (source 2) synthesizer board J5. (On 2-port models, W77 is included only with Option 224.) — W87 (N5242-60030) (N5227B and N5247B only) A14 frequency reference board J7 to A13 13.5 GHz (source 2) synthesizer board J5. (On 2-port models, W87 is included only with Option 224.) IMPORTANT! A4 13.5 GHz source 1 synthesizer, A14 frequency reference, A15 13.5 GHz (LO) synthesizer, and A17 13.5 GHz source 2 synthesizer boards will not be reused. Set these aside as spares for your other PNAs or recycle.

Description of this Upgrade Step 4. Remove Some Top Cables - All models with Options 405, 420, 425 only: The following cables had the bottom cable–end was removed previously in “Step 3b. Remove/Reinstall Some Bottom Assemblies and Old/New Cables (LFE Models, With Options 205, and 220” on page 14: These cables can be discarded. — W191 (N5245-60027) A4 Source 1 Synth J102 to A70 LFE J20 — W193 (N5242-60080) A15 LO Synth J102 to A70 LFE J18

Description of this Upgrade Step 5. Remove the Left and Right Inner Bracket’s #4 Card Guides Step 5. Remove the Left and Right Inner Bracket’s #4 Card Guides See also your Service Guide’s "Removing and Replacing the Fans" section. Set aside all hardware for reuse. Remove the #4 card guide from the left Panel. Refer to Figure 4 on page 19. 1. Remove x1 card guide (items ➁ and ④) left panel/bracket (item ①) using needle nose pliers and if necessary a flat head screw-driver. Save the card guides for reuse. 2. Repeat the process and remove the corresponding card guide number ④ from the right inner panel (not shown, but see item ➂). 3. Left side bracket can be recycled (discarded). Optional: Remove and retain card guide number ④ as a spare. Else recycle/discard. Figure 4 Left Inner Bracket Card Guide Removal (N5242-40002)

Description of this Upgrade Step 6. Install the Center Bracket - Step 6. Install the Center Bracket Refer to Figure 5 for this step. 1. Remove (x2) 0515-0372 screws from motherboard/chassis (item ①). Discard as these will not be reused. 2. Install center support bracket N5240-20136 (item ➁). 3. Secure the center support bracket with (x2) 0515-0374 screws (item ➂). Figure 5 Install Center Bracket (N5240-20136, 0515-0374 (x2))

Description of this Upgrade Step 7. Reinstall Some Bottom Cables Step 7. Reinstall Some Bottom Cables Carefully turn your instrument over so the bottom side is up. Install the New Test Set Semi-rigid Cables To see an image showing the location of these cables, refer to Figure 6 on page 22. See also the Chapter 6 bookmarks “Bottom RF Cables, 2-port Configuration [for your option]” in the PDF Service Guide. New parts are listed in Table on page 8. Install the following new cable: Refer to Figure 6 on page 22. — ①—W51(N5224/5B & N5244/5B)/W61 (N5227B & N5247B) (N5240-20125) A15 13.5 GHz (LO) DD synthesizer assembly J5 to A21 HMA26.5 RF IN (The top-side end will be connected in “Step 9. Install *NEW* A15 Direct Digital Synthesizer (DDS) Assembly” on page 23.) Follow instructions carefully when making cable connections, especially wire harness connections. Incorrect connections can destroy components, resulting in additional customer costs. Be careful not to damage the center pins of the semi-rigid cables. Some flexing of the cables may be necessary but do not over-bend them. To avoid damage when connecting and torquing the bias T combiner semirigid cables, always use a wrench to hold the bias T combiner connectors. Use a 5/16-in torque wrench set to 10 in-lbs on all cable connections except the front and rear panel bulkhead connectors. On these, use a 9 mm nutsetter or open end torque wrench set to 21 in-lb.

Description of this Upgrade Step 8. Reinstall the Top Assemblies A5 through A16 (Except A15 Direct Digital Synthesis (DDS) Assembly) and Cables - Figure 6 Install Bottom End of Top Cable (N5240-20125) Step 8. Reinstall the Top Assemblies A5 through A16 (Except A15 Direct Digital Synthesis (DDS) Assembly) and Cables Carefully turn the PNA so it is top-side up for this step. This step contains the following sub-steps: Refer to your Service Guide’s "Removing and Replacing the A4–A16 Boards" section. Reuse hardware set aside in removal procedure.

Description of this Upgrade Step 9. Install *NEW* A15 Direct Digital Synthesizer (DDS) Assembly Step 9. Install *NEW* A15 Direct Digital Synthesizer (DDS) Assembly Refer to Figure 7, Figure 8 on page 24, and Figure 10 on page 26 for this procedure. 1. Install DDS assembly N5240-60102 into instrument. Ensure assembly is fully seated. 2. Secure using 0515-0380 (x2) screws. Torque to 21 in-lbs. Figure 7 Install A15 DDS (N5240-60102) – (Noise Receiver Board Shown (Option 029 Only))

Description of this Upgrade Step 9. Install *NEW* A15 Direct Digital Synthesizer (DDS) Assembly - Figure 8 A5 through A16 Boards Installed. Including A15 DDS Assembly (N5240-60102) – 4-Port is Shown (i.e., A10, A12, A13 Boards and Related Cables Are Installed in 4-Ports Only; A9 Noise Receiver Board Requires Option 029)

Description of this Upgrade Step 10. Install *NEW* and Reused Direct Digital Synthesis (DDS) Assembly Cables Step 10. Install *NEW* and Reused Direct Digital Synthesis (DDS) Assembly Cables 1. Connect new LFE cables in the order shown in Figure 9 on page 25. The bottom-side end of the cable was installed in “C. Install Some *New* LFE Cables” on page 16. Figure 9 Connect the New LFE Assembly Top Cables (N5240-60112 and N5240-60113) 2. Connect the following new cables in the order listed. Torque screws to 9 in-lbs. Refer to Figure 10 on page 26. — ①—W51(N5224/5B & N5244/5B)/W61 (N5227B & N5247B) (N5240-20125) A15 13.5 GHz (LO) DD synthesizer assembly J5 to A21 HMA26.5 RF IN (One end was connected in “Step 7. Reinstall Some Bottom Cables” on page 21) — ➁—W1 (N5240-20124) A15 13.5 GHz (SRC 1) DD synthesizer assembly J4 to A5 26.5 GHz source (1) board RF IN Torque all cables to 10-lbs.

Description of this Upgrade Step 10. Install *NEW* and Reused Direct Digital Synthesis (DDS) Assembly Cables - Figure 10 Install New DDS Assembly Top Cables (N5240-20124 and N5240-20125) – Some Assemblies Missing for Clarity Torque all cables to 10 in-lbs.

Description of this Upgrade Step 10. Install *NEW* and Reused Direct Digital Synthesis (DDS) Assembly Cables 3. Connect the following new and reused cables in the order listed. Refer to Figure 10 on page 26. — ①—W69 (8120-5063) (reuse) Rear-panel REF IN to A15 DD synthesizer assembly J9 — ➁—W68 (8120-5063) (reuse) A15 DD synthesizer assembly J10 to rear-panel REF OUT — ③—W200 (N5240-60115) SRC DD synthesizer assembly J16 to SPAM J3 Figure 11 Install Following Flexible Cables to DDS Assembly – Top (8120-5063 (x2) and N5240-60115) – 4-Port PNA is Shown. 2-Port is Similar. 4. Connect the other end of the following new and reused cables in the order listed. Refer to Figure 12 on page 28. Some models have different reference designators for the same semirigid cable part number. — ①—W59 (N5242-60012) (reuse) A24 IF multiplexer board P3 to A16 SPAM board J1

Description of this Upgrade Step 10. Install *NEW* and Reused Direct Digital Synthesis (DDS) Assembly Cables - — ➁—W99 (N5227/47B)/W129 (N5244/5B)/W149 (N5224/5B) (N5247-60023) (reuse) A24 IF multiplexer board P603 to A16 SPAM board J2 — ③—W61 (N5242-60014) (reuse) A24 IF multiplexer board P403 to A16 SPAM board J4 — ➃—W99 (N5227/47B)/W129 (N5244/5B)/W149 (N5224/5B) (N5247-60024) (reuse) A24 IF multiplexer board P203 to A16 SPAM board J5 — ➄—W63 (N5242-60016) (reuse) A24 IF multiplexer board P803 to A16 SPAM board J6 — ➅—W200 (N5240-600115) A15 SRC DD Synthesizer assembly J16 to SPAM J3 Figure 12 Install the top-side end of the Bottom Flexible IF Multiplexer and Top Flexible Gray Cables to SPAM Board (N5242-60012, N5247-60023, N5242-60014, N5247-60024, N5242-60016, and N5240-60115)

Description of this Upgrade Step 11. Route Gray Cables Step 11. Route Gray Cables — Route gray cables as shown in Figure 13 and Figure 14 on page 30. Figure 13 Route Flexible Gray Cables as Indicated (1400-0249, N5242-60012, N5247-60023, N5242-60014, N5247-60024, N5242-60016, and N5240-60115)

Description of this Upgrade Step 11. Route Gray Cables - Figure 14 Route Flexible Gray Cables as Indicated (1400-0249, Noise Receiver Board). Applies to Option 029 Only. These cables were reinstalled in “Step 8. Reinstall the Top Assemblies A5 through A16 (Except A15 Direct Digital Synthesis (DDS) Assembly) and Cables” on page 22.

Description of this Upgrade Step 12. Remove and Replace the A55 Solid State Drive (SSD) Step 12. Remove and Replace the A55 Solid State Drive (SSD) For instructions, click the Chapter 7 bookmark “Removing and Replacing the A55 Solid State Drive (SSD)” in the PDF Service Guide1. Step 13. Boot the Instrument 1. Power up the instrument and allow it to run for a couple of minutes to stabilize. This may require several reboots. 2. If the instrument stabilizes without errors, continue to the next step. Else, if the unit still has initialization errors which look like problems that cannot be resolved, contact the Keysight Technologies. Refer to “Getting Assistance from Keysight” on page 4. Step 14. Reinstall the Inner and Outer Covers For instructions, click the Chapter 7 bookmark “Removing the Covers” in the PDF Service Guide1. Step 15. Verify the PNA Analyzer Program is Running with the Correct Options 1. Start the Network Analyzer program. 2. Once the Network Analyzer program is running: — Press Help > About NA and verify that the correct options are listed in the PNA application. 3. After successful installation of all upgrades, some features require some adjustments to ensure the instrument meets its specified performance. Refer to the following Web site: http://na.support.keysight.com/pna. Skip this step, if your PNA already has a 256 GB SSD (N5242-60135) installed. 1. See “Downloading the Online PNA Service Guide” on page 5. If if the option(s) have not been enabled or if your older options have not been removed, contact Keysight Technologies. Refer to “Getting Assistance from Keysight” on page 4.

Description of this Upgrade Step 16. Perform Post-Upgrade Adjustments and Calibration - Step 16. Perform Post-Upgrade Adjustments and Calibration Adjustments The following adjustments must be made due to the hardware changes of the analyzer. — EE default adjustment PNA EE Adjustment & Initialization Sub–steps: Refer to Figure 15 and Figure 16 on page 33. 1. Initialize Synth LO, Synth Src1, Synth Src21 2. Adjust Synth LO, Synth Src1, Synth Src21 Figure 15 J4 Src1, J5 Src21, J6 LO/LO NF, and J7 XSB1 Connector Locations IMPORTANT! The 10 MHz reference crystal oscillator is the most accurate after running for three hours. The 10 MHz Frequency Reference Adjustment can be run after the PNA has warmed up for 90 minutes, and the other adjustments can be completed in the order presented, but then the 10 MHz Frequency Reference Adjustment should be repeated after the PNA has been able to warm up for three hours. 1. Option XSB (Source 3) is only orderable on instruments with Option 422/423. J5 Src2 is not available on all models.

Description of this Upgrade Step 16. Perform Post-Upgrade Adjustments and Calibration 3. LO Drive Adjustment Figure 16 Connect sensor at the end of one of the cables from the HMA26.5 4. Perform PNA Source Power Adjustment. 5. In the Synthesizer Calibrations – WSynth Calibrations window: Press Program Files > Keysight > Network Analyzer > Service > WSynth — source adjustment — IF gain adjustment — receiver adjustment — receiver characterization If the instrument has Option 422/423, it may have Option XSB installed and SOURCE31 will be available to adjust. Remember to reconnect the load to SR3 J13 on the rear panel. 1. Option XSB (Source 3) is only orderable on instruments with Option 422/423. In the Synthesizer to Calibrate area, only the sources that are installed are available for calibration (i.e., Source 2 and Src 3 (XSB)1 are inactive (grayed out) when not installed). 1. Option XSB (Source 3) is only orderable on instruments with Option 422/423. Source 2 is not available on all models.

Description of this Upgrade Step 16. Perform Post-Upgrade Adjustments and Calibration - — IF response adjustment (Option S93090xA, S93092A, S93093A, or S93094A Only) — Noise Adjustment (Option 029 with S93029A/B Only) These adjustments are described in the PNA Service Guide and in the PNA on-line HELP. A list of equipment required to perform these adjustments is also found in the service guide1. After the specified adjustments have been performed, the analyzer should operate and phase lock over its entire frequency range. Else, all adjustments must be run per the instrument’s Service Guide on www.keysight.com. EEPROM Backup The analyzer uses arrays of correction constants to enable the analyzer to produce accurate, leveled source signals and receive clean test signals. These constants are stored in non-volatile EEPROM memory and in flash memory files. The adjustments listed here generate new correction constants. The analyzer must have a backup of this new data in case any of the data becomes corrupted. To store the backup data, perform these steps: — Navigate to the EEPROM Backup Utility, located at: — Windows 7 -- C:\Program Files (x86)\Keysight\Network Analyzer\Service\eebackup.exe — Windows 10 -- C:\Program Files\Keysight\Network Analyzer\Service\eebackup.exe — Run the program. — Click Backup EEPROM. — Click Backup TSMB Mem. — Click Backup Synth Mem. (Applies to Version 7 Synthesizers Only) — Click Exit when the program has finished. 1. See “Downloading the Online PNA Service Guide” on page 5.

Description of this Upgrade Step 17. Prepare the PNA for the User Figure 17 EEPROM Backup Menu Operator’s Check Perform the Operator’s Check to check the basic functionality of the analyzer. For instructions, refer to the “Tests & Adjustments” chapter of the Service Guide. If you experience difficulty with the basic functioning of the analyzer, contact Keysight. Refer to “Getting Assistance from Keysight” on page 4. Calibration Although the analyzer functions, its performance relative to its specifications has not been verified. It is recommended that a full instrument calibration be performed using the N7840A performance test software or the instrument’s embedded performance tests. Refer to the analyzer’s service guide for information on the performance test software. Step 17. Prepare the PNA for the User 1. If necessary, reinstall front jumper cables. 2. Install the cable guards, pushing them over the front jumper cables until the cushioning material touches the front panel of the PNA. 3. Install the dust caps on the test ports. 4. If necessary, install labels included in kit as required (e.g., KCC and two person Caution). 5. Clean the analyzer, as needed, using a damp cloth.

Description of this Upgrade Step 17. Prepare the PNA for the User -

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