Icom IC-80AD Service Manual
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Icom IC-80AD Service Manual

Vhf/uhf digital transceiver
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All manuals and user guides at all-guides.com
VHF/UHF DIGITAL TRANSCEIVER
S-14528XZ-C1
Apr. 2009

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  • Page 1 All manuals and user guides at all-guides.com VHF/UHF DIGITAL TRANSCEIVER S-14528XZ-C1 Apr. 2009...
  • Page 2 8. READ the instructions of test equipment throughly before connecting a test equipment to the transceiver. Icom, Icom Inc. and ICOM logo are registered trademarks of Icom Incorporated (Japan) in the United States, the United Kingdom, Germany, France, Spain, Russia and/or other countries.

  • Page 3: Table Of Contents

    All manuals and user guides at all-guides.com TABLE OF CONTENTS SECTION SPECIFICATIONS SECTION INSIDE VIEWS SECTION DISASSEMBLY INSTRUCTION SECTION CIRCUIT DESCRIPITON RECEIVER CIRCUITS............4-1 TRANSMITTER CIRCUITS .
  • Page 4 : 10.0–16.0 V DC for external DC power, (Wide) , DV More than 45 dB (Narrow) or specified Icom’s battery pack More than 300 kHz/–3 dB • Digital transmission speed : 4.8 kbps Less than 700 kHz/–20 dB • Voice coding speed : 2.4 kbps...
  • Page 5 All manuals and user guides at all-guides.com SECTION 2. INSIDE VIEWS • LOGIC UNIT EEPROM (IC51) LCD DRIVER (IC603) DIGITAL/ANALOG CPU3V REGULATOR MODE SWITCH (IC100) (IC303) MIC GAIN SWITCH (Q303) AF MUTE SWITCHES (Q403, 404) ALC AMP (IC300) MIC LINE SWITCH (IC301) (IC302) AF FILTER...
  • Page 6 All manuals and user guides at all-guides.com • MAIN UNIT (TOP VIEW) IF AMP AGC VOLTAGE DETECTOR (Q103) (Q104) RX AF LINE SWITCH (IC500) 1ST IF FILTER (WFM) (FI2) TONE FILTER 1ST IF FILTER (FM/AM/DV) (IC150) (FI50) IF IC (IC100) AF FILTER (IC501) CURRENT DETECT...
  • Page 7 All manuals and user guides at all-guides.com • RF UNIT TX POWER AMPLIFIER (Q100) VCO UNIT TX LO AMPLIFIER (IC100) RF CIRCUITS SHIFT SWITCH (Q252, 302) R3V LINE SWITCH HV LINE SWITCH (Q251, 303, 703) (Q1000) 1 - 1...

  • Page 8: Section 3 Disassembly Instruction

    All manuals and user guides at all-guides.com SECTION 3. DISASSEMBLY INSTRUCTION 1. Removing the rear panel 3. Removing the RF UNIT q Unscrew 2 screws A and remove the plate B. q Unsolder 2 points A. w Unscrew 2 screws C and 2 screws D. w Unsolder 3 points B and remove the shield plate C.

  • Page 9: Receiver Circuits

    All manuals and user guides at all-guides.com SECTION 4. CIRCUIT DESCRIPTION 4-1 RECEIVER CIRCUITS • 174–259.995 MHz RF CIRCUITS (RF UNIT) The RX signals are passed through the LPF, HPF, ANT RX signals from the antenna are sorted by its frequency by SW, ATT, band SW (D302), HPF and another band SW in the filters and gone through RF circuits for each bands.
  • Page 10 All manuals and user guides at all-guides.com 1ST IF CIRCUIT (MAIN UNIT) 2ND IF AND DEMODULATOR CIRCUITS (MAIN UNIT) The RX signals from the RF circuits are applied to the 1st <For FM, AM and DV mode> mixer (RF: IC900) to be converted into the 1st IF signal, The 1st IF signal from the 1st IF AMP (Q100) is applied to by being mixed with the 1st Local Oscillator (LO) signals the IF IC (IC100).
  • Page 11 All manuals and user guides at all-guides.com RX AF CIRCUITS (LOGIC UNIT) SQUELCH CIRCUIT • FM/W-FM/AM MODE The squelch circuit cuts off the AF output signals when The AF signals from the FM/AM demodulator circuits are no RF signals are received. Detecting noise components passed through the mode SW (MAIN UNIT: IC500D/C/A) (approx.

  • Page 12: Transmitter Circuits

    All manuals and user guides at all-guides.com 4-2 TRANSMITTER CIRCUITS • DV MODE TX AF CIRCUITS (LOGIC UNIT) The MIC signals from the microphone (MC300) are passed • FM MODE through the MIC gain SW (Q303) and applied to the MIC MIC signals from the internal/external microphone (MIC AMP (Q302, 304).

  • Page 13: Frequency Synthesizer Circuits

    All manuals and user guides at all-guides.com APC CIRCUIT (RF UNIT) The output voltage is applied to the ATT (D101, 102) to con- The APC (Automatic Power Control) circuit stabilizes trol the attenuation level, to adjust the input level of the YGR transmit output power to prevent transmit output power level AMP (Q102) so that the TX output power is stable.

  • Page 14: Cpu (Logic Unit: Ic1) Port Allocation

    All manuals and user guides at all-guides.com 4-4 CPU (LOGIC UNIT: IC1) PORT ALLOCATION LINE DESCRIPTION STATUS CONDITION NAME Transceiver power control. While the transceiver power is PCON AFMUTE AF mute signal to the AF mute SW (LOGIC UNIT: Q403, 404). AF mute.

  • Page 15: Voltage Block Diagram

    All manuals and user guides at all-guides.com 4-4 CPU PORT ALLOCATION (continued) LINE DESCRIPTION STATUS CONDITION NAME Reset signal from the reset IC (LOGIC UNIT: IC100). RESET – UNLK Unlock signal from the PLL IC (MAIN UNIT: IC800). PLL is locked. RX232 RS-232 data (RXD).

  • Page 16: Section 5 Adjustment Procedure

    All manuals and user guides at all-guides.com SECTION 5. ADJUSTMENT PROCEDURE 5-1 PREPARATION ¤ REQUIRED INSTRUMENTS INSTRUMENTS SPECIFICATION INSTRUMENTS SPECIFICATION • OPC-254L (Optional product) DC Cables JIG cables (See the illust below) • Connects to battery terminals Output voltages : 13.5 V DC 7.4 V DC Input impedance : 50 kΩ...
  • Page 17 All manuals and user guides at all-guides.com M CONNECTION Oscilloscope Modulation analyzer Standard signal generator (DC measurable) –20 to 90 dBµ (–127 to –17 dBm) Attenuator RF power meter Frequency 30 dB or 40 dB counter JIG cables CAUTION: (See the page 5-1) DO NOT transmit while SSG is connected to the antenna connector.

  • Page 18: Frequency Adjustment

    All manuals and user guides at all-guides.com 5-2 FREQUENCY ADJUSTMENT Select an adjustment item using [2] / [8], then set the adjustment value as specifi ed using [DIAL]. ADJUSTMENT ADJUSTMENT OPERATION VALUE ITEM REFERENCE 1) Set the power supply voltage to 7.4 V. 2) Connect an RF power meter to the antenna connector.

  • Page 19: Idling Current Adjustment (At 7.4 V)

    All manuals and user guides at all-guides.com 5-4 IDLING CURRENT ADJUSTMENT (at 7.4 V) Select an adjustment item using [2] / [8], then set the adjustment value as specifi ed using [DIAL]. ADJUSTMENT ADJUSTMENT OPERATION VALUE ITEM DRIVE AMP 1 1) Set the power supply voltage to 7.4 V. 2) Connect an RF power meter to the antenna connector.

  • Page 20: Idling Current Adjustment (At 13.5 V)

    All manuals and user guides at all-guides.com 5-5 IDLING CURRENT ADJUSTMENT (at 13.5 V) Select an adjustment item using [2] / [8], then set the adjustment value as specifi ed using [DIAL]. ADJUSTMENT ADJUSTMENT OPERATION VALUE ITEM DRIVE AMP 1 1) Set the power supply voltage to 13.5 V. (supplying from [DC IN]) IDLING CURRENT 2) Connect an RF power meter to the antenna connector.

  • Page 21: Transmit Power Adjustment (At 5.0 V)

    All manuals and user guides at all-guides.com 5-6 TRANSMIT POWER ADJUSTMENT (at 5.0 V) Select an adjustment item using [2] / [8], then set the adjustment value as specifi ed using [DIAL]. ADJUSTMENT ADJUSTMENT OPERATION VALUE ITEM TRANSMIT 1 1) Set the power supply voltage to 5.0 V. 2) Connect an RF power meter to the antenna connector.

  • Page 22: Transmit Power Adjustment (At 13.5 V)

    All manuals and user guides at all-guides.com 5-8 TRANSMIT POWER ADJUSTMENT (at 13.5 V) Select an adjustment item using [2] / [8], then set the adjustment value as specifi ed using [DIAL]. ADJUSTMENT ADJUSTMENT OPERATION VALUE ITEM TRANSMIT POWER 1 1) Set the power supply voltage to 13.5 V. –...

  • Page 23: Deviation Adjustments

    All manuals and user guides at all-guides.com 5-9 DEVIATION ADJUSTMENTS Select an adjustment item using [2] / [8], then set the adjustment value as specifi ed using [DIAL]. ADJUSTMENT ADJUSTMENT OPERATION VALUE ITEM FM DEVIATION 1 1) Set the power supply voltage to 7.4 V. 1) Connect a modulation analyzer to the antenna connector through an attenuator, and set is as;...

  • Page 24: Tone Deviation Adjustments

    All manuals and user guides at all-guides.com 5-10 TONE DEVIATION ADJUSTMENTS Select an adjustment item using [2] / [8], then set the adjustment value as specifi ed using [DIAL]. ADJUSTMENT ADJUSTMENT OPERATION VALUE ITEM TONES DEVIATION 1 1) Set the power supply voltage to 7.4 V. 2) Connect a modulation analyzer to the antenna connector through an attenuator, and set is as;...
  • Page 25 All manuals and user guides at all-guides.com 5-11 RECEIVE SENSITIVITY ADJUSTMENTS 1) Select an adjustment item (band) using [2] / [8]. 2) Set the SSG as specifi ed (frequency, deviation and output level). 3) Push the [BAND] to adjust (automatic) and store the adjustment value. ADJUSTMENT ADJUSTMENT OPERATION...

  • Page 26: Receive Sensitivity Adjustment

    All manuals and user guides at all-guides.com 5-11 RECEIVE SENSITIVITY ADJUSTMENT (continued) 1) Select an adjustment item (band) using [2] / [8]. 2) Set the SSG as specifi ed (frequency, deviation and output level). 3) Push the [BAND] to adjust (automatic) and store the adjustment value. ADJUSTMENT ADJUSTMENT OPERATION...

  • Page 27: S-Meter Adjustment

    All manuals and user guides at all-guides.com 5-12 S-METER ADJUSTMENT 1) Select an adjustment item using [2] / [8]. 2) Set the SSG as specifi ed (frequency, deviation and output level). 3) Push the [BAND] to adjust (automatic) and store the adjustment value. ADJUSTMENT ADJUSTMENT OPERATION...
  • Page 28 All manuals and user guides at all-guides.com 5-12 S-METER ADJUSTMENT (continued) 1) Select an adjustment item using [2] / [8]. 2) Set the SSG as specifi ed (frequency, deviation and output level). 3) Push the [BAND] to adjust (automatic) and store the adjustment value. ADJUSTMENT ADJUSTMENT OPERATION...

  • Page 29: Section 6 Parts List

    All manuals and user guides at all-guides.com SECTION 6. PARTS LIST [RF UNIT] [RF UNIT] PARTS PARTS DESCRIPTION DESCRIPTION LOCATION LOCATION IC100 1110006870 S.IC UPC2709TB-E3 34/14.3 D508 1790001621 S.DIO 1SV308(TPL3,F) 28.9/13.1 IC150 1110006380 S.IC LM2904PWR 43.8/34.7 D509 1790001621 S.DIO 1SV308(TPL3,F) 14.6/12.1 IC151 1130013240 S.IC...
  • Page 30 All manuals and user guides at all-guides.com [RF UNIT] [RF UNIT] PARTS PARTS DESCRIPTION DESCRIPTION LOCATION LOCATION L605 6200009290 S.COI LQW18AN47NG00D R317 7030007290 S.RES ERJ2GEJ 222 X (2.2K) 2.1/26.3 (LQW1608A47NG00) 20.2/16.9 R318 7030007290 S.RES ERJ2GEJ 222 X (2.2K) 15.6/39.8 L606 6200009220 S.COI LQW18AN15NG00D R321...
  • Page 31 All manuals and user guides at all-guides.com [RF UNIT] [RF UNIT] PARTS PARTS DESCRIPTION DESCRIPTION LOCATION LOCATION R1002 7030011870 S.RES ERJ2BSFR18X (0.18) 38.4/18.8 C150 4030016790 S.CER ECJ0EB1C103K 38.6/34.7 R1003 7030011870 S.RES ERJ2BSFR18X (0.18) 38.4/19.7 C151 4030016930 S.CER ECJ0EB1A104K 40.8/37.9 R1004 7030011870 S.RES ERJ2BSFR18X (0.18) 38.4/20.6 C152...
  • Page 32 All manuals and user guides at all-guides.com [RF UNIT] [RF UNIT] PARTS PARTS DESCRIPTION DESCRIPTION LOCATION LOCATION C463 4030016930 S.CER ECJ0EB1A104K 24.1/25.2 C858 4030016790 S.CER ECJ0EB1C103K 14.8/25.3 C467 4030017420 S.CER ECJ0EC1H470J 24.6/10.6 C859 4030018890 S.CER ECJ0EB0J224K 14.8/27.1 C469 4030017420 S.CER ECJ0EC1H470J 25.5/10.6 C860 4030017460 S.CER ECJ0EB1E102K...
  • Page 33 All manuals and user guides at all-guides.com [MAIN UNIT] [MAIN UNIT] PARTS PARTS DESCRIPTION DESCRIPTION LOCATION LOCATION IC100 1110003201 S.IC TA31136FNG(EL) 47.3/27.4 7030007280 S.RES ERJ2GEJ 331 X (330) [SEA] 27.4/27.5 IC150 1110006380 S.IC LM2904PWR 18.3/29.3 7030007280 S.RES ERJ2GEJ 331 X (330) [CHN] IC500 1130011770 S.IC...
  • Page 34 All manuals and user guides at all-guides.com [MAIN UNIT] [MAIN UNIT] PARTS PARTS DESCRIPTION DESCRIPTION LOCATION LOCATION R559 7030007290 S.RES ERJ2GEJ 222 X (2.2K) 19.5/29.5 C158 4030017430 S.CER ECJ0EC1H101J 14.6/29.2 R560 7030005100 S.RES ERJ2GEJ 154 X (150K) 21.4/35.2 C161 4030017460 S.CER ECJ0EB1E102K 42.3/26.1 R561 7030005240 S.RES ERJ2GEJ 473 X (47K)

  • Page 35: Logic Unit

    All manuals and user guides at all-guides.com [MAIN UNIT] [LOGIC UNIT] PARTS PARTS DESCRIPTION DESCRIPTION LOCATION LOCATION C808 4030017460 S.CER ECJ0EB1E102K 30.7/18.4 Q502 1590003291 S.TRA UNR9213G0L 45.1/30.4 C810 4550006250 S.TAN TEESVA 1A 106M8R 27/7.1 Q503 1590003291 S.TRA UNR9213G0L 50.6/26.4 C812 4030017460 S.CER ECJ0EB1E102K 34.4/13.2 Q504...
  • Page 36 All manuals and user guides at all-guides.com [LOGIC UNIT] [LOGIC UNIT] PARTS PARTS DESCRIPTION DESCRIPTION LOCATION LOCATION R105 7030005050 S.RES ERJ2GEJ 103 X (10K) 90/46.1 R416 7030005120 S.RES ERJ2GEJ 102 X (1K) 37.6/5.3 R107 7030007340 S.RES ERJ2GEJ 153 X (15K) 80.9/48.5 R501 7030005120 S.RES ERJ2GEJ 102 X (1K)
  • Page 37 All manuals and user guides at all-guides.com [LOGIC UNIT] [LOGIC UNIT] PARTS PARTS DESCRIPTION DESCRIPTION LOCATION LOCATION C116 4030017490 S.CER C1608 JB 1A 105K-T 52.5/43.6 C522 4030016930 S.CER ECJ0EB1A104K 63/41.1 C117 4030017460 S.CER ECJ0EB1E102K 51.1/43.7 C523 4030016930 S.CER ECJ0EB1A104K 63.5/43.8 C118 4030016930 S.CER ECJ0EB1A104K 80.9/49.4...

  • Page 38: Vco Unit

    All manuals and user guides at all-guides.com [VCO UNIT] [VCO UNIT] PARTS PARTS DESCRIPTION DESCRIPTION LOCATION LOCATION 1530003560 S.TRA 2SC5195-T1 10.4/16.5 4030018070 S.CER ECJ0EC1H300J 15.5/11.1 1590003281 S.TRA UNR9211G0L 4.6/15.1 4030017460 S.CER ECJ0EB1E102K 14.7/16.4 1530003560 S.TRA 2SC5195-T1 14/9.6 4030017460 S.CER ECJ0EB1E102K 17.5/15.7 1590003281 S.TRA UNR9211G0L...
  • Page 39 All manuals and user guides at all-guides.com SECTION 7. MECHANICAL PARTS [CHASSIS PARTS] [MAIN UNIT] ORDER ORDER DESCRIPTION QTY. DESCRIPTION QTY. J700 6510025880 TC38-108-01 6510022671 SMA-R235-1 J701 6450000131 HSJ1102-018540 J702* 6510022472 40FLT-SM2-TB (LF) (SN) (M) S702 7600000210 TP70N00E2015F-1903 J703* 6510022881 AXK5S30347YG 7120000470 ERDS2T0 S700 2260002840 SKHLLFA010...
  • Page 40 All manuals and user guides at all-guides.com MP15 (L) MP16 (L) LOGIC UNIT MP15 (L) MP9 (L) MP15 (L) MP4 (L) MP3 (C) MP17 (L) MP24 (C) MP15 (L) MP15 (L) DS1 (L) MP13 (C) MC300 MP10 (L) MP14 (C) MP20 (C) MP26 (C) MP25 (C)
  • Page 41 All manuals and user guides at all-guides.com SECTION 8. BOARD LAYOUTS The combination of top side and bottom side of this page shows the actual configuration of P.C. board. [MIC] [SP] • LOGIC UNIT (TOP VIEW) C222 C222 R218 R218 C221 C221 •...
  • Page 42 All manuals and user guides at all-guides.com [MIC] The combination of top side and bottom side of this J701 page shows the actual configuration of P.C. board. [SP] J700 • LOGIC UNIT [DIAL] (BOTTOM VIEW) • MAIN UNIT (BOTTOM VIEW) EP705 EP702 C710...
  • Page 43 All manuals and user guides at all-guides.com SECTION 9. BLOCK DIAGRAM • BLOCK (1/2) LOGIC UNIT J701 [MIC] INTSP INTSP [SP] CLONE CLONE CLONE Q403:RSR025N03 J700 Q404:RSR025N03 IC400:TA7368F VOLOUT MUTE Int.SPEAKER Q700:CPH3313 Q400:2SB120 MAIN UNIT Q701:UNR9213 Q401:XP1501 EXITMIC D700:MA2S728 Q402:2SA1588 AFMUT E Q305:UNR9213 CTRL...
  • Page 44 All manuals and user guides at all-guides.com • BLOCK (2/2) Q802:2SK880 VCO UNIT LV DET VCOLV RF UNIT Q1:2SC5195 D5:1SV325 MAIN UNIT Q 2:UNR9211 D6:1SV325 Q 50:UNR9211 D1:1SV325 VCC-I D11:1SV271 D2:1SV308 D51:1SV271 Q801:UNR911N D3:1SV325 D52:1SV271 Q803:XP4601 Q800:XP1115 D4:MA2S111 Q200:2SC5006 D54:1SV307 BCVCO3 VCO3V VCO3V...
  • Page 45 All manuals and user guides at all-guides.com SECTION 10. VOLTAGE DIAGRAM MMZ1005Y102CT IC52 MAX3221IPWR LOGIC UNIT (1/2) EP50 0.22 FORCEOFF 0.22 COUT FORCEON 0.22 MMZ1005Y102CT INVALID EP51 0.22 ROUT SHORTLAND CP502 MMZ1005Y102CT SEG10 EP52 SEG27 SEG9 SEG28 SEG8 EP53 SEG29 SEG7 MMZ1005Y102CT SEG30...
  • Page 46 All manuals and user guides at all-guides.com LOGIC UNIT (2/2) MMZ1005Y102CT EP501 R350 R351 MMZ1005Y102CT R347 EP500 C330 R504 MMZ1005Y102C T EP502 0.001 D ICK 100K 100K I C501 DIUD R506 EP503 CP551 C510 100k MMZ1005Y102C T I C303 R SSI C505 XTAL R501...
  • Page 47 All manuals and user guides at all-guides.com MAIN UNIT (1/2) RX:3.08V MMZ1005Y102CT EP100 Q154 FM,AM:3.04V FM-N,DV:3.02V UNR911HG0 Other:0.00V Other:0.08 C192 C113 Q153 0.001 C114 C116 C115 0.01 UNR9115G0 C193 R108 R162 0.001 C131 C170 R163 R124 R129 0.001 I C100 1.5K FI200 470K...
  • Page 48 All manuals and user guides at all-guides.com MAIN UNIT (2/2) FI50 CP10S 0.01 J703 0.01 0.01 DAN235E FL-429 2.2K RX:2.25V DASTB2 2.2K C105 BCVCOC I OSTB VVCOC UNLK 0.01 Q100 WFM:2.78V UVCOC TTEM P C736 2.2K 0.0047 Other:0V WFM:2.91V VSHIFT 2SC4215 0.01 Other:0V...
  • Page 49 All manuals and user guides at all-guides.com RF UNIT (1/2) VSHIFT Q800 VVCO3 VCO3V Q803 UVCO3 C839 800MHz C832 XP1115 C803 220P R825 Rx:2.91V C802 0.001 0.001 R824 C836 C827 XP4601 1.5K C835 0.001 C804 C840 MA2S1110G 800MHz 0.001 D705 Rx:2.64V C833 0.001...
  • Page 50 All manuals and user guides at all-guides.com RF UNIT (2/2) (BATT) 7.4 V Tx-H:7.12V J1(CHASSIS) Tx-M:7.23V Tx-L:7.32V Tx-sL:7.34V TTEM P R161 VCC- I N TCG10 0.001 EP100 C109 C131 C145 C111 C181 R162 R113 MMZ1608Y102B T M PZ1608S101A 1SV308 0.001 0.001 EP105 0.001...
  • Page 51 All manuals and user guides at all-guides.com A:1.80V VCO UNIT B:1.81V C:1.79V L203 LOOUT UVCO3 L202 C208 PLLOUT VMOD 2SC5006 8.2N 0.001 BCVCO3 Q202 C211 C207 VSHIFT C213 VVCO3 R209 0.001 BCLV C209 C210 R208 C206 0.001 R207 MA2S1110G C200 0.001 0.001 R200...
  • Page 52 Phone : +81 (06) 6793 5302 F ax : +81 (06) 6793 0013 : http://ww w .icom.c o .jp/ w o r ld/ind e x.html <Co r po r ate Headqua r ters> Communication Equipment 2380 116th A v e n ue N.E., Bell e vu e , W A 98004, U . S .A.
  • Page 53 All manuals and user guides at all-guides.com S-14528XZ-C1 1-1-32, Kamiminami, Hirano-ku, Osaka 547-0003, Japan © 2009 Icom Inc.

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