Icom IC-821H Service Manual Download Page 1

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Summary of Contents for IC-821H

Page 1: ...VHF UHF ALL MODE TRANSCEIVER IC B21H learn Inc ...

Page 2: ...e tfansceMlf 10 __ 01 any q DO NOT u lhe f Ola iliet 01 lilt POWe up wilen connecting the tfansceiv DO I IOT IIPPIY an RF 31 01 more Ihan 20 dam II00 mWl to tilt an enna coone lo This could da age the I an er 1 001 end REPAIR NOTES I Make e a p blem is inlemal belo e d salll mbl ing he lran 2 DO I IOT 0 lI the Uansceive unlil he tlan_i e is disconnec ed Irc n ilS power soun e 3 00 NOT fon e 0I1he ...

Page 3: ...TION BEFORE SERVICING 5 1 5 2 PLL ADJUSTMENT 5 2 5 3 FREQUENCY ADJUSTMENT 5 2 5 4 RECEIVER ADJUSTMENT 5 4 5 5 TRANSMITTER ADJUSTMENT 5 8 5 6 METER AND SQUELCH ADJUSTMENT 5 12 5 7 RF METER ADJUSTMENT 5 13 5 8 METER REFERENCE ADJUSTMENT 5 13 SECTION 6 PARTS LIST SECTION 7 MECHANICAL PARTS SECTION 8 SEMI CONDUCTOR INFORMATION SECTION 9 BOARD LAYOUTS 9 1 FRONT 9 1 9 2 MAIN UNIT 9 4 9 3 PLL UNIT 9 6 9 ...

Page 4: ...00 Q connector Key connector 3 conductor 3 5 d mm 1 8 Receive system 144 MHz band SSB CW FM 440 MHz band Single conversion superheterodyne Double conversion superheterodyne SSB CW Double conversion superheterodyne FM Triple conversion superheterodyne Intermediate frequencies unit MHz MAIN BAND SUB BAND MODE r 4 r 1st 2nd 3rd 1st 2nd 3rd SSB 10 8500 10 9500 IL X CW 10 8491 10 9491 __ FM 10 8500 0 4...

Page 5: ... panel forward as shown by the arrow at right Loosen 1 flat head screw each side of the MAIN unit chassis Unscrew 2 silver screws from the rear panel j Lift and pivoted the MAIN unit chassis to the vertical position and tighten the screws labelled to secure the chassis 2 1 Removing the PA A unit CD Opening the inside chassis as previous instructions Unscrew 8 silver screws then remove the PA A cov...

Page 6: ...SECTION 3 INSIDE VIEWS MAIN UNIT N i 0 i I 0 0 ft S d ...

Page 7: ...F A RF B AND PA B UNITS 0I 2S 2171 1 012 2S 2 1 Ioeolod _ of se1 O l I I PA A AND PLL UNITS Pow m Mo IIC2 SC I 3 IC SC 11 14 1011 2SI 508 Io alod do of 1 0 1 IX1 CR 452 30 2 MHl Co DDS cfl C f DDSoO euil ...

Page 8: ...A unit RF B unit 014 015 4 1 The filtered signals from the bandpass filter are mixed with 1st LO signals at the mixer circuit Ql1 Q12 to produce a 1st IF signal 10 85 MHz Main or 10 95 MHz Sub The 1st LO signals are the PLL output frequency which comes from the VHF veo circuit PLL unit Q1 01 03 08 The 1st IF signal is then applied to either the Main or Sub band 10 MHz IF circuit in the MAIN unit v...

Page 9: ...14 Demodulator MAIN band BFO circuits IC101 Main and IC103 Sub generate BFO signals for use in the balanced mixers BFO frequencies Mode for MAIN band for SUB band USB 10 8485 MHz 10 9485 MHz lSB 10 8515 MHz 10 9515 MHz CW 10 8483 MHz 10 9483 MHz 4 1 8 SQUELCH CONTROL CIRCUIT MAIN UNIT The demodulated AF signals from the balanced mixer circuit or FM IF IC are applied to the squelch control gate IC1...

Page 10: ...252 IC119 0254 Sub The amplified signal is rectified at the noise detector circuit for conversion Into DC voltage The DC voltage is amplified at the DC amplifier circuit 011 012 Main 0256 0257 Sub and then applied to the noise blanker control circuit 014 Main 0212 Sub to stop amplification of the IF amplifier circuit 013 Main 098 Sub Some DC voltage is fed back to the nOise amplifier circuit IC6 M...

Page 11: ...ansmit MAIN band Rx SUB band Tx Rx 433 000 0 VHF UHF I I I lh 145 000 0 MAIN unit I I RF B unit t I I L I I 4 2 2 MODULATION CIRCUIT MAIN UNIT 1 FM mode The amplified audio signals from IC2a are pre emphasized and limited at IC1 b and then passed through the splatter filter IC1 a The filtered signals are then applied to the FM modulation circuit 022 via the FM deviation adjustment pot R29 Also sub...

Page 12: ...W output level The signal is then applied to the PA B unit via J3 APC and ALC circuits I Bandpass filters L36 L37 are designed between drive amplifiers to suppress spurious components in the RF signal 4 2 6 POWER AMPLIFIER CIRCUIT PA A AND PA B UNITS The power amplifier circuit amplifies the RF signals to the specified output power 1 VHF power amplifier circuit PA A unit The RF signal from the RF ...

Page 13: ... at the buffer amplifiers 02 IC5 then applied to the prescaler circuit IC4 The prescaler circuit divides the applied signal and outputs it to the VHF DDS circuit lC1 via the buffer amplifier 04 The VHF DDS circuit generates digital signals using the applied signal as a clock frequency The phase detector section in ICl com pares it s phase with the reference frequency which is generated at the refe...

Page 14: ...hich is converted from R8V the 9 V lin by the R8 generator circuit MAIN unit Q37 Q41 9 V for transmitter circuits particularly the PA A PAT9 unit which is converted from the 9 V line by the PAT9 generator circuit MAIN unit Q42 Q45 9 V for transmitter circuits particularly the PA B PBT9 unit which is converted from the 9 V line by the PBT9 generator circuit MAIN unit Q43 Q44 4 7 4 5 PORT ALLOCATION...

Page 15: ...ntrol 95 ADMNO Input port for MAIN band s noise level signals 14 AT8 signal High Transmitting on VHF 96 ADRF Input port for Tx RF level signal 97 ADALC Input port for ALC level signal 98 ADPTT Input port for PTT switch 99 ADMIC Input port for up down signal from the microphone MAIN unit IC24 Pin Port number name Description 54 OUTPUTEXPANDERICs 4 SCWN Outputs CW N mode select signal for SUB band M...

Page 16: ...tion number name Outputs attenuator control signal for ATT140 VHF band 4 High When attenuator is activated Outputs attenuator control signal for ATT400 UHF band 5 High When attenuator is activated Outputs pre amplifier control signal for PRE140 VHF band 6 High When pre amplifier is activated Outputs pre amplifier control signal for PRE400 UHF band 7 High When pre amplifier is activated 12 LDIM Out...

Page 17: ...ne connector Audio generator Pin 1 Pin 7 MI INPCj Cp f Pin 5 PTT EQUIPMENT Sweep generator Standard signal generator SSG Digital multimeter DC voltmeter Oscilloscope AC millivoltmeter Ammeter RF voltmeter External speaker to ANT GRADE AND RANGE Frequency range 120 460 MHz Sweep bandwidth At least 50 MHz Output impedance 50Q Frequency range 120 460 MHz Output level 0 1 I1V 32 mV 127 to 17 dBm Input...

Page 18: ...MAIN band Ireq 136 000 MHz 2 2 V 0 5 V Verify 3 MAIN band Ireq 174 000 MHz 6 2 V 0 5 V 4 MAIN band Ireq 145 000 MHz Connect an RF 10dBm 3dB Receiving voltmeter 50 Q impedance to W11 UHF LOCK 1 MAIN band Ireq 440 000 MHz PLL Connect a digital 4 0V PLL C107 VOLTAGE Mode FM multimeter to W13 Receiving 2 MAIN band Ireq 420 000 MHz 1 6 V 0 5 V Verily 3 MAIN band Ireq 460 000 MHz 6 5 V 0 5 V 4 MAIN band...

Page 19: ...t MAIN UNIT FM TX LO frequency check point J27 L43 Reference frequency L42 adjustment X1 Reference frequency adjustment C107 UHF lock voltage adjustment L7 VHF lock voltage adjustment W11 VHF lock voltage check point L18 FM TX LO frequency adjustment ...

Page 20: ...Modulation 1 kHz Deviation 5 kHz 2 Mode USB Rear Connect an AC Maximum audio Adjustm in Set an SSG as panel millivoltmeter to the output sequence Level 0 1IlV 127dBm SUB SP jack with an L38 L40 Modulation OFF 8Qload L41 VHF 1 MAIN band Ireq 144 00000 MHz Rear Connect an AC 1 5 kHz audio SSG Output TOTAL GAIN Mode USB panel millivoltmeter to the frequency MAIN BAND Connect an SSG to the VHF ANT MAI...

Page 21: ...L16 tt1I L15 L14 tti12r VHF sensitivity L13 t J r adjustment 11 _ _ lMJ MAIN BAND L21 ttt J t 5 5 9 VHF total gain R23 adjUstmBet D MAIN L41 VHF sensitivity adjustment SUB BAND L40 L38 R378 VHF total gain adjustment SUB BAND L48 VHF sensitivity d tment L47 S BAND L46 C P S S VHF sen itivity check pOint SUB BAND ...

Page 22: ...UELCH ADJUSTMENT must be adjusted GAIN 1 MAIN band freq Front S meter S9 RF B Rl04 EUR version 435 000 MHz panel USA AUS versions 440 000 MHz Mode FM Connect an SSG to the UHF ANT connector and set as Level 3 2 IlV 97 dBm Modulation 1 kHz Deviation 3 5 kHz Receiving 2 SUB band freq Rear Adjust the connected 3 21lV 97 dBm Con Verify EUR version 435 000 MHz panel SSG output level until 3dBm nected U...

Page 23: ... 5 SUB BAND L24 L27 i rr n L26 UHF RX gain R1 04 ttt fi L J l r fllHII Ihfl r L20 adjustment L22 L23 MAIN UNIT UHF sensitivity C P check point MAIN BAND M S CJ D c J C P S S UHF sensitivity adjustment MAIN BAND UHF sensitivity check oint SUB AND Noise blanker L8 D L118 Noise blanker L110 adjustment adjustment L10 5 7 ...

Page 24: ... MHz panel meter to the UHF ANn repeatedly USA AUS versions 440 00000 MHz connector L1 L2 L3 Mode USB L4 LS MIC GAIN Center position Connect an audio generator to the microphone connector and set as 1 5 kHz 2 mV f Grounds J23 on the MAIN unit 4 Transmitting 16W R3 VHF TOTAL 1 MAIN band freq Rear Connect an RF power Maximum level RF A Adjust in GAIN EUR version 145 00000 MHz panel meter to the VHF ...

Page 25: ...C37 C103 C32 UHF helical C27 filter VHF total gain L37 adjustment adjustment L5 L4 L3 L36 L5 L2 R3 L4 L1 L3 L2 R3 UHF total gain adjustment MAIN UNIT L2 UHF total gain RiD5 VHF outpcd adjustment R2 L1 power adjustment R72 J1 UHF total gain J2 check point 5 9 ...

Page 26: ...er to the VHF ANT Connect an audio generator to the connector microphone connector and set as 1 5 kHz 20 mV Grounds J29 on the MAIN unit MIC GAIN Max level Transmitting 2 MAIN band Ireq Connect an ammeter 16 A RS7 EUR version 435 00000 MHz between power supply USA AUS versions 440 00000 MHz and transceiver Mode USB Grounds J30 on the MAIN unit Transmitting FM 1 MAIN band Ireq Any Rear Connect an F...

Page 27: ...ive J23 level check point RF A UNIT MEASUREMENT UNIT LOCATION Rear Connect an FM panel deviation meter to the transmitting band s antenna connector through an attenuator Rear Connect a spectrum panle analyzer to the VHF ANT connector through an attenuator Rear Connect a spectrum panel analyzer to the transmitting band s antenna connector through an attenuator ADJUSTMENT VALUE POINT UNIT ADJUST 3 5...

Page 28: ...USB S METER 0 32IlV 117 dBm 5 r 0 _ LI 13 Set an SSG output level as USB 1 IIlV 106dBm 5 r S _ L 14 Set an SSG output level as USB 3 2IlV 97 dBm 5 r _ L 9 IS Set an SSG output level as USB 10 IlV 87 dBm 5 r _ LI 20 16 Set an SSG output level as USB 1 mV 47 dBm 5 r _ LI SO This output level of standard signal generator SSG is indicated as SSG s open circuit 5 12 OPERATION SUB BAND Push UP to enter ...

Page 29: ...LL FM Verify S9 on the s oeao 18 bar meter Push CALL FM Verify S60 on the S 02CLO 1 3 bar meter FM Push CALL S 02CLO c a FM Push CALL S Oc aO c I FM Push CALL S OeCLO c 2 OPERATION SUB BAND Push DOWN to enter RF meter set mode d uP 00 Push CALL FM Verify 80 S9 40 on _ e 0 30 the analog RF meter NOTE This adjustment is not necessary unless the CPU or EEPROM ICs are replaced The set data would not b...

Page 30: ...OR ERA3YEO 202V 0107 1590000430 S TRANSISTOR OTC144EU Tl07 R22 7030003440 S RESISTOR ERJ3GEYJ 102 V 1 kQ 0108 1590001000 S TRANSISTOR RN2427 TE85R R24 7030003520 S RESISTOR ERJ3GEYJ 472 V 4 7 kQ 0109 1590000430 S TRANSISTOR OTC144EU Tl07 R25 7030003640 S RESISTOR ERJ3GEYJ 473 V 47 kQ 0110 1590001000 S TRANSISTOR RN2427 TE85R R27 7030003680 S RESISTOR ERJ3GEYJ 104 V 100 kQ 0111 1590000430 S TRANSIS...

Page 31: ...C1608 JB lH 102K T A R246 7030003560 S RESISTOR ERJ3GEYJ 103 V 10 kQ Cl18 4030006860 S CERAMIC C1608 JB lH 102K T A R247 7030000280 S RESISTOR MCR10EZHJ 150 Q 151 Cl19 4030006860 S CERAMIC C1608 JB lH 102K T A R248 7030003560 S RESISTOR ERJ3GEYJ 103 V 10 kQ C120 4030006880 S CERAMIC C1608 JB lH 472K T A R249 7030003560 S RESISTOR ERJ3GEYJ 103 V 10 kQ C121 4030006880 S CERAMIC C1608JB lH472K T A R2...

Page 32: ... OPC 586 W5 8900004810 CABLE OPC 467 REF ORDER DESCRIPTION NO NO W6 8900004840 CABLE OPC 470 W7 8900004850 CABLE OPC 471 Rl 7210002420 VARIABLE RV 286 W8 8900004850 CABLE OPC 471 RK0972210 10KBX2 W9 8900004850 CABLE OPC 471 R2 7030004050 S RESISTOR ERJ3GEYJ lRO V 1 Q Wl0 8900006880 CABLE OPC 658 Jl 6510016810 S CONNECTOR IMSA 9611S 05Y900 EPl 0910047493 PCB B4809C EP2 8930031220 LCD CONTACT SRCN 1...

Page 33: ...5 7030007210 S RESISTOR ERA3YEB 102V R26 7030007220 S RESISTOR ERA3YED 202V Xl 6050008710 XTAL CR 452 30 200 MHz R27 7030007220 S RESISTOR ERA3YED 202V R28 7030007220 S RESISTOR ERA3YED 202V R29 7030007220 S RESISTOR ERA3YED 202V L1 6200003330 S COIL NL 322522T 1ROJ 3 R30 7030007220 S RESISTOR ERA3YED 202V l2 6200003150 S COIL NL 322522T 180J R31 7030007220 S RESISTOR ERA3YED 202V l3 6200001710 S ...

Page 34: ...3GEYJ 105 V 1 MQ Rl14 7030003440 S RESISTOR ERJ3GEYJ 102 V 1 kQ Rl15 7030003840 S RESISTOR ERJ3GEYJ 225 V 2 2 MQ R116 7030003510 S RESISTOR ERJ3GEYJ 392 V 3 9 kQ Cl 4030008920 S CERAMIC C1608 JB 1C 473K T A Rl17 7030003510 S RESISTOR ERJ3GEYJ 392 V 3 9 kQ C2 4030008920 S CERAMIC C1608 JB 1C 473K T A R120 7030003390 S RESISTOR ERJ3GEYJ 391 V 390 Q C3 4030008920 S CERAMIC C1808 JB lC 473K T A R121 7...

Page 35: ...4030008920 S CERAMIC C1608 JB lC 473K T A C79 4030008920 S CERAMIC C1608 JB lC 473K T A C193 4030006860 S CERAM1C C1608 JB IH 102K T A C80 4030008920 S CERAMIC C1608 JB lC 473K T A C194 4030006860 S CERAMIC C1808 JB lH 102K T A C81 4030008920 S CERAMIC C1608 JB lC 473K T A C195 4030006880 S CERAMIC C1608 JB lH 472K T A C82 4030008920 S CERAMIC C1608 JB lC 473K T A C196 4030006860 S CERAMIC C1608 J...

Page 36: ... JUMPER ERJ3GEJPWV 016 1530002690 S TRANSISTOR 2SC4116 GR TE85R W32 7030003860 S JUMPER ERJ3GEJPWV 017 1530002690 S TRANSISTOR 2SC4116 GR TE8SR 019 1530003090 S TRANSISTOR 2SC4213 B TE85R 020 1590000430 S TRANSISTOR OTC144EU Tl07 EPI 0910047521 PCB B4812A 021 1590000430 S TRANSISTOA OTC144EU TI07 022 1590000430 S TAANSISTOR OTC144EU Tl07 023 1590001000 S TRANSISTOR RN2427 TE85A 024 1590001000 S TR...

Page 37: ...E 1SS272 TE85R 0212 1530002690 S TRANSISTOR 2SC4116 GR TE85R 030 1750000110 S OIOOE 1SS272 TE85R 0213 1590000680 S TRANSISTOR OTC114EU 1107 031 1750000110 S OIOOE lSS272 TE85R 0218 1590000430 S TRANSISTOR OTC144EU 1107 032 1750000550 S OIOOE lSS355 TE 17 0219 1590001000 S TRANSISTOR RN2427 TE85R 033 1750000110 S OIOOE lSS272 TE85R 0220 1590001330 S TRANSISTOR OTAl14EU Tl07 034 1730000730 S ZENER R...

Page 38: ...04920 S COIL MLF1608A 2R2K T L4 6200003950 S COIL HF50ACC 322513 T L7 6200003590 S COIL EXCCL3225Ul L8 6150000950 COIL LS ll0A Rl 7030003480 S RESISTOR ERJ3GEYJ 222 V 2 2 kQ L9 6200003260 S COIL NL 322522T l01J R2 7310002740 S TRIMMER RV 150 L10 6150004170 COIL LS 476 RH03A3A14XOFC 103 L11 6150004210 COIL LS 480 R3 7030003320 S RESISTOR ERJ3GEYJ 101 V 100 Q L12 6150004210 COIL LS 480 R4 7030003270...

Page 39: ...0003760 S RESISTOR ERJ3GEYJ 474 V 470 kQ R65 7030003580 S RESISTOR ERJ3GEYJ 153 V 15 kQ R130 7030003320 S RESISTOR ERJ3GEYJ 101 V 100 Q USA AUS R131 7510000830 S THERMISTOR NTCCF2012 3EH 471 KC T R65 7030004050 S RESISTOR ERJ3GEYJ lRO V 1 Q R132 7030003330 S RESISTOR ERJ3GEYJ 121 V 120 Q EUR SWE R133 7030003560 S RESISTOR ERJ3GEYJ 103 V 10 kQ R66 7310002600 S TRIMMER RV ll0 R134 7030003560 S RESIS...

Page 40: ...03560 S RESISTOR ERJ3GEYJ 103 V 10 kQ R232 7030003640 S RESISTOR ERJ3GEYJ 473 V 47 kQ R337 7030003480 S RESISTOR ERJ3GEYJ 222 V 2 2 kQ R233 7030003400 S RESISTOR ERJ3GEYJ 471 V 470 Q R338 7030003440 S RESISTOR ERJ3GEYJ 102 V 1 kQ R234 7030003490 S RESISTOR ERJ3GEYJ 272 V 2 7 kQ R352 7030003520 S RESISTOR ERJ3GEYJ 472 V 4 7 kQ R235 7030003330 S RESISTOR ERJ3GEYJ 121 V 120 Q R353 7030003520 S RESIST...

Page 41: ...OR ERJ3GEYJ 222 V 2 2 kQ R547 7030003840 S RESISTOR ERJ3GEYJ 473 V 47 kO R443 7030003560 S RESISTOR ERJ3GEYJ 103 V 10 kQ R548 7030003630 S RESISTOR ERJ3GEYJ 393 V 39 kO R444 7030003560 S RESISTOR ERJ3GEYJ 103 V 10 kO R549 7070000540 RESISTOR CRH200 R 02J 27 0 R445 7030003530 S RESISTOR ERJ3GEYJ 562 V 5 6 kO R550 7030004050 S RESISTOR ERJ3GEYJ IROV 10 R449 7030003560 S RESISTOR ERJ3GEYJ 103 V 10 kQ...

Page 42: ...ED 202V R782 7030003560 S RESISTOR ERJ3GEYJ 103 V 10 kQ R694 7030007230 S RESISTOR ERA3YED 102V R783 7030003760 S RESISTOR ERJ3GEYJ 474 V 470 kQ R695 7030007220 S RESISTOR ERA3YED 202V R784 7030003400 S RESISTOR ERJ3GEYJ 471 V 470 Q R696 7030007230 S RESISTOR ERA3YED 102V R791 7030003640 S RESISTOR ERJ3GEYJ 473 V 47 kQ R697 7030007220 S RESISTOR ERA3YED 202V R792 7030003740 S RESISTOR ERJ3GEYJ 334...

Page 43: ...18 4030006880 S CERAMIC C1608 JB 1H 472K T A C100 4510004630 S ElECTROLlTIC ECEV1CA100SR C19 4510005860 S ELECTROllTIC ECEV1HA2R2SR Cl01 4030011600 S CERAMIC C1608 JB 1C 104KT N C20 4030007140 S CERAMIC C1608 CH lH 121J T A Cl02 4030008920 S CERAMIC C1608 JB lC 473K T A C21 4030008650 S CERAMIC C1608 JB lH 332K T A Cl03 4030006880 S CERAMIC C1608 JB 1H 472K T A C22 4030009490 S CERAMIC C1608 JB lH...

Page 44: ...0210 S CERAMIC C3216 JB lC 105M T A C219 4030006880 S CERAMIC C1608 JB lH 472K T A C351 4510006220 S ElECTROLITIC ECEV1CA10lUP C220 4030008880 S CERAMIC C1608 JB lH 472K T A C352 4030008630 S CERAMIC C1608 JF lC 104Z T A C221 4030006880 S CERAMIC C1608 JB lH 472K T A C353 4510004640 S ElECTROLITIC ECEV1CA470SP C222 4030006880 S CERAMIC C1608 JB lH 472K T A C354 4030010210 S CERAMIC C3216 JB lC 105...

Page 45: ...lC 104Z T A C446 4510004640 S ELECTROLITIC ECEV1CA470SP C570 4510004650 S ELECTROLITIC ECEVl EA4R7SR C447 4030006900 S CERAMIC C1608 JB lE 103K T A C571 4030008630 S CERAMIC C1608 JF lC 104Z T A C451 4510005890 S ELECTROLITIC ECEV1AAN100R C572 4030008630 S CERAMIC C1608 JF lC 104Z T A C452 4030009090 S CERAMIC C3216 JB lC 334K T A C573 4030006900 S CERAMIC C1608 JB lE 103K T A C454 4030007080 S CE...

Page 46: ... 4030007050 S CERAMIC C1608 CH lH 220J T A J28 6910001040 CONNECTOR IPS 1136 C645 4030009540 S CERAMIC C1608 CH lH lR5B T A J27 6910001040 CONNECTOR IPS 1138 C646 4030007020 S CERAMIC C1608 CH lH 120J T A J28 8910001040 CONNECTOR IPS 1138 C647 4030008630 S CERAMIC C1608 JF lC 104Z T A J29 8910001040 CONNECTOR IPS 1138 C646 4030006900 S CERAMIC C1608JB lE 103K T A J30 8910001040 CONNECTOR IPS 1138 ...

Page 47: ...V 1 kQ CI4 4030009570 S CERAMIC CI608 CH IH OR3B T A R2 7030003460 S RESISTOR ERJ3GEYJ 152 V 1 5 kQ CI5 4030009570 S CERAMIC CI608 CH IH OR3B T A R3 7310002720 S TRIMMER RV 148 C16 4030008250 S CERAMIC C1608 UJ IH 120J T A RH03A3AS3XOOA 472 C17 4030009570 S CERAMIC C1608 CH IH OR3B T A R4 7310002670 S TRIMMER RV 143 RH03A3AS2 471 CI8 4030009570 S CERAMIC CI608 CH IH OR3B T A RS 7030003560 S RESIST...

Page 48: ...OOE MAS62 TX C91 4030006860 S CERAMIC C1608 JB lH 102K T A 010 1790000450 S OIOOE MA862 TX C92 4030006860 S CERAMIC C1608 JB lH 102K T A 011 1790000640 S VARICAP MA363B TX C93 4030006860 S CERAMIC C1608 JB lH 102K T A 012 1790000640 S VARICAP MA363B TX C94 4030006860 S CERAMIC C160B JB lH 102K T A 013 1790000640 S VARICAP MA363B TX C95 4030006860 S CERAMIC C160B JB lH 102K T A 014 1790000640 S VAR...

Page 49: ...V 47 OJ C2 4030008360 S CERAMIC C1608 UJ lH 101J T A R21 7030003340 S RESISTOR ERJ3GEYJ 151 V 150 OJ C3 4030007800 S CERAMIC C1608 SH lH 330J T A R22 7030003370 S RESISTOR ERJ3GEYJ 271 V 270 0 C4 4030007800 S CERAMIC C1608 SH lH 330J T A R23 7030003340 S RESISTOR ERJ3GEYJ 151 V 150 0 C6 4030006860 S CERAMIC C1608 JB lH 102K T A R24 7030003440 S RESISTOR ERJ3GEYJ 102 V 1 kOj C7 4030006880 S CERAMIC...

Page 50: ...8 JB lH 102K T A C76 4030006860 S CERAMIC C1608JB lH 102K T A Cl64 4030009570 S CERAMIC C1608 CH lH OR3B T A C77 4030006880 S CERAMIC C1608 JB lH 472K T A C165 4030006860 S CERAMIC C1608 JB lH 102K T A C78 4030006860 S CERAMIC C1608 JB lH 102K T A C166 4030006860 S CERAMIC C1608 JB 1H 102K T A C79 40 30007100 S CERAMIC C1608 CH lH 560J T A C167 4030006960 S CERAMIC C1608 CH lH 050C T A C81 4030006...

Page 51: ...03100 CONNECTOR RT01T l 3B Ll 6170000070 COIL LW 9 L2 6170000230 COIL LW 25 L3 6110001670 COIL LA 253 W2 6910001020 JUMPER IPS l041 2 L4 6110001740 COIL LA 263 W3 6910001020 JUMPER IPS l041 2 L5 6110001740 COIL LA 263 W4 6910001020 JUMPER IPS l041 2 L6 6110001550 COIL LA 235 W5 6910001020 JUMPER IPS l041 2 L7 6110001550 COIL LA 235 W6 6910001020 JUMPER IPS l041 2 LB 6110001740 COIL LA 263 W7 69100...

Page 52: ...EYJ 101 V 100 Q Jl 6510003420 CONNECTOR B06B EH S R18 7030003480 S RESISTOR ERJ3GEYJ 222 V 2 2kQ R19 7030003480 S RESISTOR ERJ3GEYJ 222 V 2 2 kQ EPl 6510018330 TERMINAL F4053A EP2 6510018330 TERMINAL F4053A Cl 4030006880 S CERAMIC C1608 JB lH 472K T A EP3 0910047561 PCB B4819A C2 4030007090 S CERAMIC C1608 CH 1H 470J T A C3 4030006860 S CERAMIC C1608 JB lH 102K T A C5 4010005460 CERAMIC HM60SJ CH ...

Page 53: ...ape L MP44 8930040430 188613 key MP45 8930040420 1886 9 key DISP UNIT REF NO ORDER NO DESCRIPTION DSl 5030001390 LCD FTD 15518ABH W4 8900005930 Cable OPC 586 W5 8900004810 Cable OPC467 W6 8900004840 Cable OPC470 W7 8900004850 Cable OPC471 W8 8900004850 Cable OPC471 W9 8900004850 Cable OPC471 Wl0 8900008880 Cable OPC 658 QTV 1 1 1 1 1 1 1 1 1 1 1 1 3 3 1 1 1 1 1 1 1 1 1 1 5 4 7 2 4 1 3 1 1 1 1 1 2 ...

Page 54: ...MP1 CO MP3 CO MP14 CO SW A BOARD MP1 F MP28 F MP2 F 7 2 S1 F EP1 F SW B BOARD MP45 F Unit abbreviations F FRONT PARTS D DISP L RI RIT BOARD CH CHASS ...

Page 55: ...1 F S V t S2 MP19 F R1 RI MP18 F 17 F MP3 F W10 0 MP25 F BOARD ME1 F MP5 0 MP26 F MP1 0 MP4 0 EP2 0 DISP UNIT OS1 0 MP6 0 MP5 CO MP2 CO I I MP7 CO MP9 CO VS VR BOARD SUB BOARD MAIN ACK BOARD DISP UNIT VM VR COVER PARTS J J HTS D ASSIS PARTS CO 10 CH CH ...

Page 56: ...RF A UNIT 81 PA MP6 AB MP7 CH MF1 PA 0 MP25 PL MP27 PA PLL UNIT MAIN UNIT I I I I 11 LMP6 CH 1l MP10 M MP6 PL MP5 M MP13 CH MP7 M l Unit abbreviations D DISP UNIT PL PLL ...

Page 57: ... 1 S1 PA I f I MP30 PA F B UNIT MP16 PA J2 PA MP14 PA l Jl PA MP1 PA MP20 PA PA B UNIT e SP1 PA 8 PA I 0 I V a 7 WS2 PA I i I PL MP8 PA 1 PA A UNIT MP10 PL MP3 PA MP13 CH 0 OISP UNIT PL PLL UNIT M MAIN UNIT RA RF A UNIT R8 RF 8 UNIT PA PA PARTS CH CHASSIS PARTS 7 3 ...

Page 58: ...6 8510010070 1691 DDS case 1 MP36 8930001170 Ground spring A EUR SWE only 3 MP7 8510003510 406 shield case cover 1 MP8 8510005330 Coil case 1 SPI 2510000040 Speaker C065K121081 0 1 MP9 8510010150 D Acase 1 MP10 8950004610 Wire hook S 5 1 CHASSIS PARTS RF A UNIT REF NO ORDER NO DESCRIPTION QTY MPI 8010015291 1424 chassis 1 1 REF NO ORDER NO DESCRIPTION QTY MP2 8630000210 Nut M5 NI BS 1 MPI 84100006...

Page 59: ...ll 2SC4116GR 2SC4213 B 2SC42150 2SC4226 R25 2SJ144 GR Symbol LG Symbol AS Symbol QO Symbol R25 Symbol VG ill ill ill ill 1 2SK1517 2 2SK21714 2SK302 Y 2SK508 K52 2SK882 GR Symbol P2 Symbol KM Symbol TY Symbol K52 Symbol TG 1 1 ID 3SK131 LA 3SK228XR DTA114EU DTA114TU DTC114EU Symbol V12 Symbol XR Symbol 14 Symbol 94 Symbol 24 5 S Gl 5 S Gl 11 1 1 11 DTC144EU FMW1 RN1204 RN2425 RN2427 Symbol 26 Symb...

Page 60: ...AN202U DAP202U Symbol A1 Symbol BB Symbol TC Symbol N Symbol P 0 0 CD Jj Jj tl DWA010 HSM88AS MA862 RD20M B2 RD5 1M B2 Symbol W8 Symbol C1 Symbol M11 Symbol 202 Symbol 512 0 Jj 0 B B RD6 2M B2 RD9 1M B3 Symbol 622 Symbol 913 B B 8 2 ...

Page 61: ... 9 BOARD LAYOUTS 9 1 FRONT UNIT eSW A BOARD J1 J2 7 LAn 7 LNB LPRF KS2 LAGC KRl LCOMP KSl F 5 KR2 KS8 KR3 1 KS5 KR4 10 DISP UNIT J15 eSW B BOARD J1 2 KR2 NC KR3 KR3 KS3 KS4 KS5 KR4 KRl 8 9 to DISP UNIT J16 9 1 ...

Page 62: ..._ OISP UNIT _JACK BOARD _VR BOARC ...

Page 63: ... VR BOARD MAIN VR BOARO SUB ...

Page 64: ...Tho 00 _01 Ptgt iI oe p QO in _ on oI P c _ _ RITBOARD I ...

Page 65: ..._sW a OISP UNIT _ MAIHW l rru ...

Page 66: ... C W _ omSW eolRD J1 J2 ...

Page 67: ... M ETER _JACK BOARD 0 N UNIT J3 to U II F Il U OT a J oon J c 9Ol O n 001S u r Jl u ...

Page 68: ...9 2 MAIN UNIT J25 ...

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Page 80: ...9 3 Pll UNIT l i ...

Page 81: ...J 0 ...

Page 82: ...9 4 PA A AND PA e UNITS PA A UNIT h II II ...

Page 83: ... PA B UNIT II II ...

Page 84: ...9 S RF A AND RF B UNITS j o I RF A UNIT RF B UNIT ...

Page 85: ...Tho io 1 OlIN pag_ oo 1M no pa how Iho 1a1out in tlo cono gu a OOOuOI p c Boo ...

Page 86: ... RF A UNIT ...

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Page 88: ...6SCF SQl CTRl SQl CTRl C T US IC29 SU4066SCF IClll SU4053BCF IC112 Tel 0aF Q238 Q240 Q241 Q242 DTC144EUx4 Q2Ba DTA114EU MAIN UNIT DETS to OPtiona UT8 TONE SQl UNIT MFM Q2 Q3 DTA114EUx2 Q255 2SC4116 Optlonl UT B4 TONE SQL UN IT DRIVER SUFFER Ica ICtD IC24 IC10S BU4094BCF 4 Q253 2SA15S6 Q31 RN2 27 Q41 DTC114EU RI IC102 TC1S04F PA L _______ _ _ ____ ______ SPl L t r L t r 11 1 JIll ...

Page 89: ...RF A UNIT RF B UNIT 011 2SK508 S8TH BFOA BFOB B1l0 VR BOARD SOLI MA IN AFI VR BOARD SOL SUB IAF Mle L 30 2MHz REF OSe XI eR 462 L T OPt 10n 1 eR 2B3 L T ICtS TC1S04F QIB 2Se4215 frolll MAtN PTTI 0 o t t L _ J TUNING DIAL METER 0113 OAP202U Oil 155355 B2l0 Ie TA 13 BV lel2 P02 QtOI OTC 13 BV AOMSM f AOMNO f AOSNO f AOMCM f ADSCMO SENo 1 GAT eTR IC Bt RIT BOARD RITI fN f J SHI FT fN f PHONES 7 R F P...

Page 90: ...MO ASC PRE A P o r o o WI CO P 0 osc to MAIN 1O 211Hz r o r o ADMS f ro IIA IH f K S 2 1 _ 1 IK sI3_ t tj ll r rli iiij i iiii 1 l l j AOSNO f ro IIA IH KS4 ADMCIU ro MAIN KS5 AOSCMOro IIIAIN K B SEND fro IIAIN KRl KR2 KR3 T SQ L 1 SATE CPU KR4 AIN TSQlS CTRL IIA tN IV 52 BCF I I I I I I I I I I I I I CI V 1 D v IIF 1 U882 ATTA IC7 TC7W04F I P T X m l I DISP UNIT TB 13 8Y FAN FANV CTRL I Q24 2SC36...

Page 91: ...I KRI I I I Dl03 Dl04 SW B BOARD I KR2 I 0105 O106 I I I KR3 I rD ttOJ I I O107 I I I KR4 I I KS6 rDl I KS1 I _ 1 Jl WID JI8 KRI oL KRI SCAN rEh KS5 L KSS IKii4 KR4 KS K 4 KS4 KR3 l j KR r KR2 JI NNNN CE a a a J2 P2 JI RI 2 0 SSPO M MSPD R3S lOOk R 220 I PHG PHG 0 01 m PHONE 1 MSPJ R4 220 PHCO L SSPJ r MSPO N MSPD PHG JACK BOARD ifZ Ii Jl MIC VR BOARD MAIN LffllL 11 JI WI J3 He J6 Rl RV 285 oL MIC...

Page 92: ... O C D_ CCN IC3 _ Ql03 I QI04 r DTCU4EU t I RN2427 Ql05 I r o DTCI44EU r lRN I27 Ql07 I I DTC144EU r J iiN 27 9 Q R204 0 270 CI07 a H i 2i i CCC l SRBA URBA Ql11 t f DTC144EU r MTBA Q113 f OTCI44 U r RI M5282FP M IC GA IN CENTER VCC2 VCC RX OV ___ t 2 9 TX 1 5V 3 IN VCAOUT t t i j IN CTL r VCA tt L ___ 0113 DAP202U DIU 1SSa5S II Q COUP OFF OV ON 9V RID2 10k Q38 D 44EU C22 an 8 I I I I OM fl I I lr...

Page 93: ......

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Page 95: ...AHA RF A UNIT J6 PA A WI9 RXRA 0 J7 TXRA 0 JI IFMA n E if 1 J2 PA A WI8 IFSA 0 31 PLL WII AI LO I C J lJB 013 8 o 011 5 OGND 0 MT9B 0 SR9B 0 MR9B P3 J6 0 B2LO RF 8 UNIT PA B P2 J t RX 0 J3 TX 0 PA B PI JI IFMB Iet IT i2 IFS 1 P eJ 0 I FSB J 5 i R P2 IFMB r J9 PLL P2 13 8 e 90 GND 0 0 GND 0 101 1 GND 0 0 5 0 101 J24 _ W17 30 2M 0 J4 IFSA 0 JI IFMA 0 RF A P2 R PI PA SPI U JIO AIC2 e ICI 0 BIC20 FORA...

Page 96: ...from e i OJt cy J2 2 7V RX 7 SV TX o lV 020 MA77 __4r ____fT _____ _ _ _ _ _ _ _ _ _ _ _ _ _ v g v_sv ____ 0 4r d JC 1I S C lS16t 15p 0 0047 MEASURMENT CONO ITIONS VOLTMETER OIGITAl TESlER CSC ILLOSCOPE 2DMH EXCEPT SUB FM 3 BV N N 0 n i R321 RBBl ...

Page 97: ... N m J r RX 9 0V Q2 r a MA77 l TX O IV OTAI14EU r 5 p uc uc C lr lI o a UO LRX 3 0V TX OV C344 l43 O 0047 100 H t V IC22 PCI037GR R532 IBk 1d R3Se T100 uOm C335 CAR I VCC R393 R394 9 SIGI OUT2 N Wr 2 r 2 m B BYPS OUTI t 18k T d 22k GNO NC j i t t g TrlT cw i T Tgg dm muom ci 09 MA77 a _ MA11 r uc M 5 RV 152 USA AUS RV ll 0 EUR SWE 2 H RB5 15 USA AUS I EUR SWE ...

Page 98: ...2 l RN2 1 J 1 9 Q9l OJ t8V t I 9 C IC26 J 1025 PC1555G2 R3SS PQD9RF2 to 1 a 3 3k I L l l C358 3 GNO VOC 10 13 TRG 0ISCHARGE I I _I 31 t 1t HOUT VTH 5 _ 9V f7T LL _ _ t t lj 11f RESET VCON n 6 l l l 8 2 1 cOT Itl 2 T R OD e c_ i 65 9 TV 0n r cass rJ rlr 47 I rh lS5272 O 00 ...

Page 99: ... IV r k l 5V S r Q93 OTC 4EU 1OZ c t Cl IC24 8U4094BCF 8 lQS QS J Q94 i I l OTCI4 U SSCN 11 Q8 io2lJ 1 il TSFM 12 Q7 Q95 i ISFM 13 Q6 DTCI4 U SFM 14 Q5 __ H __ Jt __ _ 1_ S A GC 7 Q4 OE I 5 WT J r SSS8 4 Q3 CLK 110 U _ scw Q2 0 J1 I ___ f _f C WN __ 4 _1Ql STR t E _ _ J Te f1 IV ll C549 C554 Tii rlr 0 0047x6 10 C411 R4721 47k L VCC2 VCC t L dI Q119 4 3Vr 2 IN VCAOUT i 7 9V 2SC4116 l C573 i r IN CT...

Page 100: ...DIISM ADSSM toIEOOT f AI P ___t DI EDSH 17i M t ____ t tol EKEY c t M t tol TSQlM M t ____ t tol TSQlS 1 T 7 t M t toIUTTON p t01 CI V t 3 r r t _r 10IAlCI p MI t j toIMIUD t t01 SEND t j _r _r 101 POCO 11 2 L _r _r _ _ i IMIOF VRM VRS GND from JACK BOARD J2 from PA SPl ...

Page 101: ...10 IlAIN UNIT J5 RF 8 UNIT from T tcil JlliL L r l W13 ATT ON TX 8 4V RX MAIN 8 4V SUB S 4V An Off TX 8 4V RX MAIN OV SUB OV C14 11 3 TX 4 9V RX 4 8V MEASURME DIGITAL TX Volta wi ttl no ...

Page 102: ...DkO V DC TX 9V RX OV L8 UH TX Voltale 18 mecBured In SSB mode with no modulation n N _0 l TX OV RX S 6V o Q14 2SC3356 Q15 2S03356 _0 cm O 001 C co e l IC2 8 pPC2710 1 C137 8p I l 15 1 0 _0 l to MAIN UNIT Jl 10 MAIN UNIT J4 I Rl07 27 TX 1V C2 RT V O DD1 TX O av RX OV br 8 Q6 ltid DTC144EU J o r TX O 05Y RX OV RU 1 TX 13 av RX 13 8V I Al 47 ...

Page 103: ...HVf W7 i ONT ACS1 W5 I PI ACS2 W8 GND W8 _ _ _ _ _ _ _ _ _ _ J RX OV TX 9 OV lie C62 cea S I OO_1 4 21I P__ au HSll88AS 4 to DISP UNIT J9 P3 t lAIN UNIT Jl0 THSW EP4 Wi EPI EP2 J3 01 150011 Jr EP2 PI 41 SIt EPa THSW PRES PREA A 02 Ie 1 81C2 fORA FOIlS 6ItDB PATS P8T9 6NDA PA SION RX I V 143011 to T X DISP UNITOFNG 414 WI WI PAl J2 14411 ...

Page 104: ... J14 P5 M J 47 iR14 GNOB PSTS IC 1 NFl PAl l g PA B UNIT RX QV 19 Dl HI o 78V lA a82 M 1407 Y P2 HSP f ___t J _SPI IC2 C l 13 J18 IQI J 1 2 3 4 I Wl8 TXRA WI Ll0 8L01RN1 AS2 o01 L11 8l01RN1 A82 1 r 114 LA 253 RX 14 2V TX 13 7V TX RF POW lO 14 O HI 13 2V PA A UNIT ft W P8 IuL iOJ I PAl cL J41 J2 t K J8 144M ANTI T Rf POW LO 14V HI 3 92V ...

Page 105: ...1 4 r H D Q2 5 C01A ClK Q3 C02A R3 1K DE Q4 h COOB R4 1K Q5 13 C01B 12 C02B R5 1K QB DDS r T RB 1K QS fTh QS F R7 1K IC13 BU4094BCF Ifig I5glfig g d d d d DATA CK STBA DATA CK PV R228 1k R70 1k R7B 47k R71 1k R77 47k R72 1k R78 47k I g R73 1k R79 47k d 0 rJr 0 R75 1k STBB I IrJr 78V I R23Q 1k g 0 L 6V 8 93V 5 0 9 I 13 8 GND cN5 J 63V 0 0 001 4t 0 001 JcU 0 001 MEASUREMENT CONO IT IONS MAIN 145MHz ...

Page 106: ...Ok I C W231W24 T T T T l g IC14 l u _ a 4 2 C 2 21 rfr rfr rfr rfr rt a TC7S04F Rl04 2k RIOS a _ 2k S Rloa 0 _ 2k 1 Rl07 2k RIIO 0 2k RlIl 2k RI12 a 2k L18 U9 L20 I H 2W1 2ID I 6 4 98V I Lf J cJ 0 047 J ti t le15 o TC7S04F 41 2 I 230 1 5 1f 4 TV 17 S4V 4 SlV e223 r H i l I 0 i 0047 l 2 49V a _ C260 3 c 0 I j l o 101 I OPt lonal r I eR 29S I m ...

Page 107: ...4 54V f lOl I OPlfonl1 I CR 293 R240 111 IC1S TC7S04F W251W26 C152 H15S 0 001 220 R2S5 C291 47 0 001 t l l t C292 R2S9 ______ O 1 64V 3 OlV tc B8V 011 R1S4 ISV237 68 r I 1 13V l l u_ 0 p_ o 1 04V W32 111 2S1 C ...

Page 108: ...2 98V AILO Wll 15 C2S2 R23S W17 4 7 2W2 ____________________________J3 0 2 M__ e __ E t 84V l88V 1 ol uo L2S L30 12nH 12nH 4 0V R13S C130 22 0 01 01 ________ 8 1L O_ f e __ E W13 PLL UNIT 11 4 ...

Page 109: ...sion of Icom America Inc 3071 5 Road Unit 9 Richmond B C V6X 2T4 Canada Phone 604 273 7400 Fax 604 273 1900 Icom Europe GmbH Communication Equipment Himmelgeister Str 100 D 40225 Dusseldorf Germany Phone 0211 346047 Fax 0211 333639 Icom Australia Pty Ltd A C N 006 092 575 7 Duke Street Windsor Victoria 3181 Australia Phone 03 9529 7582 Fax 03 9529 8485 Icom UK Ltd Unit 9 Sea St Herne Bay Kent CT6 ...

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