Icom IC-208H Manuals

INSTRUCTION MANUAL i208H VHF/UHF FM TRANSCEIVER This device complies with Part 15 of the FCC rules. Operation is sub- ject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. i FOREWORD Thank you for purchasing this Icom product. The IC-208H VHF/UHF FM TRANSCEIVER is designed and built with Icom’s state of the art technology and craftsmanship. With proper care, this product should provide you with years of trouble-free operation. We want to take a couple of moments of your time to thank you for making your IC-208H your radio of choice, and hope you agree with Icom’s philosophy of “technology first.” Many hours of research and development went into the design of your IC-208H. D FEATURES ❍Switchable VHF and UHF transceiver ❍Selectable backlit color from amber, green and yellow ❍Detachable controller for flexible installation ❍55 W* of high transmit output power *VHF band; 50 W for UHF and Korean version, 25 W for Taiwan version ❍Remote control microphone standard ❍New DMS (Dynamic Memory Scan) system IMPORTANT READ ALL INSTRUCTIONS carefully and completely before using the transceiver. SAVE THIS INSTRUCTION MANUAL— This in- struction manual contains important operating instructions for the IC-208H. EXPLICIT DEFINITIONS WORD DEFINITION R WARNING! CAUTION NOTE Personal injury, fire hazard or electric shock may occur. Equipment damage may occur. Recommended for optimum use. No risk of personal injury, fire or electric shock. Icom, Icom Inc. and the logo are registered trademarks of Icom Incorporated (Japan) in the United States, the United Kingdom, Ger- many, France, Spain, Russia and/or other countries. RWARNING RF EXPOSURE! This device emits Radio Frequency (RF) energy. Extreme caution should be observed when operating this device. If you have any questions regarding RF expo- sure and safety standards please refer to the Federal Communica- tions Commission Office of Engineering and Technology’s report on Evaluating Compliance with FCC Guidelines for Human Radio fre- quency Electromagnetic Fields (OET Bulletin 65). RWARNING! NEVER connect the transceiver to an AC out- let. This may pose a fire hazard or result in an electric shock. RWARNING! NEVER operate the transceiver while driving a vehicle. Safe driving requires your full attention—anything less may result in an accident. NEVER connect the transceiver to a power source of more than 16 V DC. This will damage the transceiver. NEVER connect the transceiver to a power source using reverse polarity. This will damage the transceiver. NEVER cut the DC power cable between the DC plug and fuse holder. If an incorrect connection is made after cutting, the transceiver may be damaged. NEVER expose the transceiver to rain, snow or any liquids. The transceiver may be damaged. NEVER operate or touch the transceiver with wet hands. This may result in an electric shock or damage the transceiver. NEVER place the transceiver where normal operation of the vehi- cle may be hindered or where it could cause bodily injury. NEVER let objects impede the operation of the cooling fan on the rear panel. DO NOT push the PTT when not actually desiring to transmit. DO NOT allow children to play with any radio equipment contain- ing a transmitter. During mobile operation, DO NOT operate the transceiver with- out running the vehicle’s engine. When the transceiver’s power is ON and your vehicle’s engine is OFF, the vehicle’s battery will soon be- come exhausted. AVOID using or placing the transceiver in direct sunlight or in areas with temperatures below –10°C (+14°F) or above +60°C (+140°F). BE CAREFUL! The transceiver will become hot when operat- ing it continuously for long periods. AVOID setting the transceiver in a place without adequate venti- lation. Heat dissipation may be affected, and the transceiver may be damaged. AVOID the use of chemical agents such as benzine or alcohol when cleaning, as they can damage the transceiver’s surfaces. USE Icom microphones only (supplied or optional). Other manu- facturer’s microphones have different pin assignments and may dam- age the transceiver if attached. For U.S.A. only CAUTION: Changes or modifications to this device, not ex- pressly approved by Icom Inc., could void your authority to operate this device under FCC regulations. ii PRECAUTION iii TABLE OF CONTENTS SUPPLIED ACCESSORIES q DC power cable (3 m) ………………………………………1 w Mobile mounting bracket …………………………………1 e Microphone (HM-133)* ……………………………………1 r Fuse (20 A) …………………………………………………1 t Mounting screws, nuts and washers …………………1 set y Microphone hanger …………………………………………1 u Separation cable† (3.5 m; 11.5 ft) …………………………1 *HM-118N HAND MICROPHONE or HM-118TN/TAN DTMF MICROPHONE supplied versions are also available. †A ferrite core is adapted for the USA version. q w e r t y u FOREWORD ........................................................................................... i IMPORTANT ............................................................................................ i EXPLICIT DEFINITIONS ......................................................................... i PRECAUTION ........................................................................................ ii SUPPLIED ACCESSORIES .................................................................. iii TABLE OF CONTENTS ......................................................................... iii QUICK REFERENCE GUIDE ............................................................. I–X I Installation ....................................................................................... I I Your first contact .......................................................................... VII I Repeater operation ....................................................................... IX I Programming memory channels..................................................... X 1 PANEL DESCRIPTION ............................................................... 1–10 I Front panel— controller ................................................................. 1 I Function display ............................................................................. 3 I Rear panel ..................................................................................... 5 I Microphone (HM-133) .................................................................... 7 I Microphone keypad ........................................................................ 8 I Optional microphones (HM-118N/TN/TAN)................................... 10 2 SETTING A FREQUENCY ........................................................ 11–14 I Preparation ................................................................................... 11 I Using the tuning dial .................................................................... 12 I Using the [Y]/[Z] keys ................................................................. 12 I Using the keypad ......................................................................... 12 I Tuning step selection ................................................................... 13 I Lock functions .............................................................................. 14 3 BASIC OPERATION ................................................................. 15–18 I Receiving ..................................................................................... 15 I Monitor function ........................................................................... 15 I Squelch attenuator ....................................................................... 16 I Transmitting ................................................................................. 17 I Selecting output power ................................................................ 17

VHF/UHF FM TRANSCEIVER i208H SERVICE MANUAL INTRODUCTION This service manual describes the latest service information for the IC-208H VHF/UHF FM TRANSCEIVER at the time at the time of publication. DANGER NEVER connect the transceiver to an AC outlet or to a DC power supply that uses more than 16 V. This will ruin the transceiver. DO NOT expose the transceiver to rain, snow or any liquids. DO NOT reverse the polarities of the power supply when con- necting the transceiver. DO NOT apply an RF signal of more than 20 dBm (100 mW) to the antenna connector. This could damage the transceiv- er’s front end. ORDERING PARTS Be sure to include the following four points when ordering replacement parts: 1. 10-digit order numbers 2. Component part number and name 3. Equipment model name and unit name 4. Quantity required 1140005990 S.IC MB15A02PFV-1 IC-208H MAIN UNIT 5 pieces 8810009610 Screw FH M2.6×6 ZKIC-208H Bottom cover 10 pieces Addresses are provided on the inside back cover for your convenience. REPAIR NOTES 1. Make sure a problem is internal before disassembling the transceiver. 2. DO NOT open the transceiver until the transceiver is disconnected from its power source. 3. DO NOT force any of the variable components. Turn them slowly and smoothly. 4. DO NOT short any circuits or electronic parts. An insu- lated tuning tool MUST be used for all adjustments. 5. DO NOT keep power ON for a long time when the trans- ceiver is defective. 6. DO NOT transmit power into a signal generator or a sweep generator. 7. ALWAYS connect a 50 dB to 60 dB attenuator between the transceiver and a deviation meter or spectrum ana- lyzer when using such test equipment. 8. READ the instructions of test equipment thoroughly before connecting equipment to the transceiver. To upgrade quality, any electrical or mechanical parts and internal circuits are subject to change without notice or obligation. MODEL IC-208H VERSION Taiwan U.S.A. Korea Australia Export SYMBOL TPE USA KOR AUS EXP TABLE OF CONTENTS SECTION 1 SPECIFICATIONS SECTION 2 INSIDE VIEWS SECTION 3 DISASSEMBLY INSTRUCTIONS SECTION 4 CIRCUIT DESCRIPTION 4 - 1 RECEIVER CIRCUITS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 - 1 4 - 2 TRANSMITTER CIRCUITS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 - 4 4 - 3 PLL CIRCUITS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 - 6 4 - 4 OTHER CIRCUITS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 - 8 4 - 5 POWER SUPPLY CIRCUITS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 - 8 4 - 6 PORT ALLOCATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 - 9 SECTION 5 ADJUSTMENT PROCEDURES 5 - 1 PREPARATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 - 1 5 - 2 SOFTWARE ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 - 3 SECTION 6 PARTS LIST SECTION 7 MECHANICAL PARTS AND DISASSEMBLY SECTION 8 SEMI-CONDUCTOR INFORMATION SECTION 9 BOARD LAYOUTS 9 - 1 CONTROL UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 - 1 9 - 2 MAIN UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 - 3 9 - 3 VCO BOARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 - 5 SECTION 10 BLOCK DIAGRAM SECTION 11 VOLTAGE DIAGRAMS 11 - 1 CONTROL UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 - 1 11 - 2 MAIN UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 - 2

VHF/UHF FM TRANSCEIVER i208H SERVICE MANUAL INTRODUCTION This service manual describes the latest service information for the IC-208H VHF/UHF FM TRANSCEIVER at the time at the time of publication. DANGER NEVER connect the transceiver to an AC outlet or to a DC power supply that uses more than 16 V. This will ruin the transceiver. DO NOT expose the transceiver to rain, snow or any liquids. DO NOT reverse the polarities of the power supply when con- necting the transceiver. DO NOT apply an RF signal of more than 20 dBm (100 mW) to the antenna connector. This could damage the transceiv- er’s front end. ORDERING PARTS Be sure to include the following four points when ordering replacement parts: 1. 10-digit order numbers 2. Component part number and name 3. Equipment model name and unit name 4. Quantity required 1140005990 S.IC MB15A02PFV-1 IC-208H MAIN UNIT 5 pieces 8810009610 Screw FH M2.6×6 ZKIC-208H Bottom cover 10 pieces Addresses are provided on the inside back cover for your convenience. REPAIR NOTES 1. Make sure a problem is internal before disassembling the transceiver. 2. DO NOT open the transceiver until the transceiver is disconnected from its power source. 3. DO NOT force any of the variable components. Turn them slowly and smoothly. 4. DO NOT short any circuits or electronic parts. An insu- lated tuning tool MUST be used for all adjustments. 5. DO NOT keep power ON for a long time when the trans- ceiver is defective. 6. DO NOT transmit power into a signal generator or a sweep generator. 7. ALWAYS connect a 50 dB to 60 dB attenuator between the transceiver and a deviation meter or spectrum ana- lyzer when using such test equipment. 8. READ the instructions of test equipment thoroughly before connecting equipment to the transceiver. To upgrade quality, any electrical or mechanical parts and internal circuits are subject to change without notice or obligation. MODEL IC-208H VERSION Taiwan U.S.A. Korea Australia Export SYMBOL TPE USA KOR AUS EXP TABLE OF CONTENTS SECTION 1 SPECIFICATIONS SECTION 2 INSIDE VIEWS SECTION 3 DISASSEMBLY INSTRUCTIONS SECTION 4 CIRCUIT DESCRIPTION 4 - 1 RECEIVER CIRCUITS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 - 1 4 - 2 TRANSMITTER CIRCUITS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 - 4 4 - 3 PLL CIRCUITS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 - 6 4 - 4 OTHER CIRCUITS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 - 8 4 - 5 POWER SUPPLY CIRCUITS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 - 8 4 - 6 PORT ALLOCATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 - 9 SECTION 5 ADJUSTMENT PROCEDURES 5 - 1 PREPARATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 - 1 5 - 2 SOFTWARE ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 - 3 SECTION 6 PARTS LIST SECTION 7 MECHANICAL PARTS AND DISASSEMBLY SECTION 8 SEMI-CONDUCTOR INFORMATION SECTION 9 BOARD LAYOUTS 9 - 1 CONTROL UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 - 1 9 - 2 MAIN UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 - 3 9 - 3 VCO BOARD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 - 5 SECTION 10 BLOCK DIAGRAM SECTION 11 VOLTAGE DIAGRAMS 11 - 1 CONTROL UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 - 1 11 - 2 MAIN UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 - 2 1 - 1 SECTION 1 SPECIFICATIONS All stated specifications are subject to change without notice or obligation. M GENERAL • Frequency range : * 1Guaranteed 144.000 – 146.000 MHz only, * 2Guaranteed 144.000 – 148.000 MHz only, * 3Guaranteed 430.000 – 440.000 MHz only; * 4Guaranteed 440.000 – 450.000 MHz only * 5Guaranteed 430.000 – 434.000 MHz, 435.000 – 438.000 MHz only; * 6Not guaranteed range • Mode : FM, AM (AM range is 118.0 – 135.995 MHz and Rx only for [USA] and [EXP].) • Number of memory channel : 502 (including 2 call channels) • Usable temperature range : –10˚C to +60˚C; +14˚F to +140˚F • Frequency resolution : 5, 10, 12.5, 15, 20, 25, 30, 50, 100 and 200 kHz • Scan mode : Full, Program, Priority, Memory channel, Bank, Skip and Tone • Frequency stability : ±10 ppm (–10˚C to +60˚C; +14˚F to +140˚F) • Power supply requirement : 13.8 V DC ±15 % (negative ground) • Current drain (at 13.8 V DC) : * 1VHF only (except [KOR]), * 2[TPE] only • Antenna connector : SO-239 (50 Ω) • DATA connector : Mini DIN 6 pin • Dimensions : 141(W)×40(H)×185.4(D) mm; 59⁄16(W)×19⁄16(H)×79⁄32(D) inch (projections not included) • Weight : 1.2 kg; 2 lb 10 oz M TRANSMITTER • Output power : VHF 55 W (50 W: [KOR], 25W: [TPE])/15 W/5 W (selectable) UHF 50 W/15 W/5 W (selectable) • Modulation system : Variable reactance frequency • Maximum frequency deviation : ±5.0 kHz • Spurious emissions : Less than –60 dB • Microphone connector : 8-pin modular jack (600 Ω) M RECEIVER • Receive system : Double-conversion superheterodyne • Intermediate frequency : 1st IF 46.05 MHz 2nd IF 450 kHz • Sensitivity : Less than 0.18 µV (at 12 dB SINAD) • Squelch sensitivity : Less than 0.13 µV (at threshold) • Selectivity : More than 12 kHz/–6 dB (Wide); More than 6 kHz/–6 dB (Narrow) Less than 30 kHz/–60 dB (Wide); Less than 20 kHz/–60 dB (Narrow) • Spurious and image rejection : More than 60 dB • Audio output power (at 13.8 V) : More than 2.0 W at 10% distortion with an 8 Ωload • External speaker connector : 2-conductor 3.5(d) mm (1⁄8")/8 Ω VERSION [KOR] [USA] [AUS] [TPE] [EXP] RX (MHz) 144.000–146.000, 430.000–440.000 118.000–173.995* 2, 230.000–549.995* 4 810.000–824.000* 5, 849.000–869.000* 5 894.000–999.990* 5 118–173.995* 2, 230.000–549.995* 3, 810.000–999.990* 6 144.000–146.000, 430.000–432.000 118–173.995* 2, 230.000–549.995* 3, 810.000–999.990* 6 TX (MHz) 144.000–146.000* 2, 430.000–440.000 144.000–148.000, 420.000–450.000* 4 144.000–148.000, 420.000–450.000* 3 144.000–146.000, 430.000–432.000 136.000–173.995* 2, 400.000–478.995* 3 VHF UHF High: 55 W* 1/50 W/25 W* 2 12 A* 1/11.5 A/8 A* 2 11.5 A/8 A TX Middle: 15 W (Approx.) 7.5 A Low: 5 W (Approx) 5.5 A 5.0 A RX Standby 0.8 A Maximum output power 1.0 A