Icom IC-F6012 Service Manual
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Icom IC-F6012 Service Manual

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UHF MOBILE TRANSCEIVERS
S-14716XZ-C1
Mar. 2011

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Summary of Contents for Icom IC-F6012

  • Page 1 UHF MOBILE TRANSCEIVERS S-14716XZ-C1 Mar. 2011...
  • Page 2 8. READ the instructions of the test equipment throughly before connecting it to the transceiver. Icom, Icom Inc. and the Icom logo are registered trademarks of Icom Incorporated (Japan) in Japan, the United States, the United Kingdom, Germany, France, Spain, Russia and/or other countries.

  • Page 3: Table Of Contents

    TABLE OF CONTENTS SECTION SPECIFICATIONS SECTION INSIDE VIEWS SECTION DISASSEMBLY INSTRUCTION SECTION OPTIONAL PRODUCTS INSTALLATION SECTION CIRCUIT DESCRIPITON RECEIVER CIRCUITS............5-1 TRANSMITTER CIRCUITS .

  • Page 4: Specifications

    SECTION 1. SPECIFICATIONS [USA], [EXP] [EUR] • Frequency coverage 400–470 MHz [USA-01], [EXP-01], [EXP-03] 450–520 MHz [EXP-04] 400–470 MHz 450–512 MHz [USA-02] • Type of emission Wide 16K0F3E (25.0 kHz) Middle – 14K0F3E (20.0 kHz) Narrow 11K0F3E (12.5 kHz) 8K50F3E (12.5 kHz) •...
  • Page 5 [USA], [EXP] [EUR] • Receive system Double-conversion superheterodyne • Intermediate frequencies 1st IF; 46.35 MHz, 2nd IF; 450 kHz 0.25 μV typ. at 12 dB SINAD • Sensitivity −4 dBμV (EMF) typ. at 20 dB SINAD 0.25 μV typ. • Squelch sensitivity (At threshold) −4 dBμV (EMF) typ.

  • Page 6: Section 2 Inside Views

    SECTION 2. INSIDE VIEWS • FRONT UNIT (TOP VIEW) TX/RX INDICATOR LED DRIVERS (Q13 and Q14) (IC1) CLOCK FREQUENCY SHIFT DIODE (D6) RESET IC (IC2) EEPROM (IC3) TONE FILTER SWITCH KEY BACKLIGHT DRIVER (Q3) (Q1) KEY BACKLIGHT SW (Q2) TONE LPF (IC5) 2 - 1...
  • Page 7 • MAIN-A/MAIN-B UNIT (TOP VIEW) TONE FILTER (Q39) 2ND IF FILTER AF AMP BANDWIDTH SWITCH (IC21) (Q40) IF DEMODULATOR IC APC AMP (IC1) (IC2) 1ST IF AMP (Q4) 1ST IF FILTER (Q4) PLL IC (IC4) VCO SW (Q15) R8 LINE REGULATOR RIPPLE FILTER (Q26) (Q17)
  • Page 8 • MAIN-A/MAIN-B UNIT (BOTTOM VIEW) +5V LINE REGULATOR (Q27,Q28) T8 LINE REGULATOR (Q25) AF MUTE SWITCH (Q35) Ext. MODULATION LINE SWITCH (Q31) DRIVE AMP (Q8) REFERENCE OSCILLATOR MODULATION BUFFER (IC19) REFERENCE FREQUENCY OSCILLATOR (X2) D/A CONVERTER 1ST MIXER (IC20) (Q3) 2ND IF FILTER (For wide mode) (FI2)

  • Page 9: Section 3 Disassembly Instruction

    SECTION 3. DISASSEMBLY INSTRUCTION 1) Remove 4 screws from the bottom cover, and then 5) Unsolder total of 9 points; 3 points at the antenna remove it. connector, 6 points at the PA module. 2) Disconnect the fl at cable and speaker cable. 3) Remove 2 screws from the both sides, and then remove UNSOLDER the front panel in the direction of the arrow.

  • Page 10: Section 4 Optional Products Installation

    SECTION 4 OPTIONAL PRODUCTS INSTALLATION Install optional UT-108R as follows: Install optional OPC-1939/OPC-2078 as follows: 1) Turn OFF the power, and then disconnect the DC cable. 1) Turn OFF the power, and then disconnect the DC power cable. 2) Remove 4 screws, and then remove the bottom cover. 2) Remove 4 screws, and then remove the bottom cover.

  • Page 11: Receiver Circuits

    SECTION 5. CIRCUIT DESCRIPTION 5-1 RECEIVER CIRCUITS 2ND IF AND DEMODULATOR CIRCUITS (MAIN-A/-B UNIT) RF CIRCUITS (MAIN-A/-B UNIT) The amplified 1st IF signal is mixed with the 2nd LO signal RF signal from the antenna is passed through the LPF (as at the internal 2nd IF mixer of the IF demodulator IC (IC1), the harmonic filter for transmitting) and antenna SW (D3, to obtain the 450 kHz 2nd IF signal.
  • Page 12 AF CIRCUITS (MAIN-A/-B UNIT) SIGNALING (DECODING) (MAIN-A/-B UNIT) The demodulated AF signal from the IF demodulator IC (IC1) Demodulated signal from the pin 9 of the IF demodulator is amplified by the AMP (IC21), filtered by the HPF (IC16), IC (IC1) is passed through the LPF to extract tone signals and then passed through the AF line SW (IC14) and LPF contained in the demodulated signal.

  • Page 13: Transmitter Circuits

    5-2 TRANSMITTER CIRCUITS MIC AMPLIFIER (FRONT UNIT) CTCSS/DTCS SIGNALS ENCODING (FRONT UNIT) Audio signal from the connected microphone is applied to The CTCSS/DTCS encoding signal from the CPU (IC1) the MIC AMP (IC5), through the microphone connector (J1). “CENC0–CENC2” is passed through the LPF (IC5) for The amplifi...

  • Page 14: Frequency Synthesizer Circuits

    PLL (MAIN-A/-B UNIT) 5-3 FREQUENCY SYNTHSIZER CIRCUITS The applied VCO output is divided according to the serial VCOs (MAIN-A/-B UNIT) data including divide ratio from the CPU, at the prescaler The TX VCO which generates the TX signal is composed and programmable divider.

  • Page 15: Port Allocations

    5-5 PORT ALLOCATIONS • CPU (FRONT UNIT; IC1) Port Port Description Description Name Name Serial clock signal to the PLL IC (IC4, pin 9) KR1− 1−3 Dealer-programmable keys input. and D/A converters (IC17, pin 3/IC18, pin 8/ IC20, pin 7). Chip-select signal to the attached optional unit.

  • Page 16: Preparation

    SECTION 6. ADJUSTMENT PROCEDURE 6-1 PREPARATION M REQUIRED EQUIPMENTS EQUIPMENT GRADE AND RANGE EQUIPMENT GRADE AND RANGE Modifi ed OPC-1122U Cloning Software JIG Cable CS-F3020/F5020 : Revision 1.0 or later (see the illust below) Output voltage : 13.6 V DC except [EUR] Power attenuation : 50 or 60 dB DC Power Supply...
  • Page 17 ¤ ADJUSTMENT CHANNELS • For [Low band] version • For [High band] version CONVENIENT: The cloning data fi le for the adjustment, as described in this service manual, is attached. Right click the clip icon, and select “Save Embeded File to Disk.” •...
  • Page 18 ¤ CONNECTION Oscilloscope Modulation analyzer RF power meter Standard signal generator (DC measurable) 30 W [25 W ver.] –127 to –17 dBm 60 W [45 W ver.] (0.1 V to 32 mV) Attenuator Frequency 50 dB or 60 dB counter CAUTION: DO NOT transmit while to the antenna connector...

  • Page 19: Frequency Adjustment

    6-2 FREQUENCY ADJUSTMENT 1) Select an adjustment item using cursor or [↑]/[↓] of the PC’s keyboard. 2) Set or modify the adjustment value as specifi ed using [←]/[→] of the PC’s keyboard, then push [ENTER]. TRANSCEIVER’S ADJUSTMENT ADJUSTMENT OPERATION VALUE CONDITION ITEM PLL LOCK...

  • Page 20: Transmit Adjustment

    6-3 TRANSMIT ADJUSTMENT 1) Select an adjustment item using cursor or [↑]/[↓] of the PC’s keyboard. 2) Set or modify the adjustment value as specifi ed using [←]/[→] of the PC’s keyboard, then push [ENTER]. TRANSCEIVER’S ADJUSTMENT ADJUSTMENT OPERATION VALUE CONDITION ITEM OUTPUT...

  • Page 21: Receive Adjustment

    6-4 RECEIVE ADJUSTMENT 1) Select an adjustment item using cursor or [↑]/[↓] of the PC’s keyboard. 2) Set or modify the adjustment value as specifi ed using [←]/[→] of the PC’s keyboard, then push [ENTER]. TRANSCEIVER’S ADJUSTMENT ADJUSTMENT OPERATION VALUE CONDITION ITEM RECEIVE...

  • Page 22: Parts List

    SECTION 7. PARTS LIST [MAIN-A UNIT] (For low band version) [MAIN-A UNIT] (Low band version) PARTS PARTS DESCRIPTION DESCRIPTION LOCATION LOCATION 1110007320 S.IC NJM2591V-TE1-#ZZZB 67.8/23 1750001910 S.DIO HVD144AKRF-E 48.1/29.8 1110002751 S.IC TA75S01F(TE85RF) 44.5/31.1 1750001910 S.DIO HVD144AKRF-E 51.5/33.2 1150002380 IC RA30H4047M1-101 [EUR-01] 1750001910 S.DIO HVD144AKRF-E...
  • Page 23 [MAIN-A UNIT] (Low band version) [MAIN-A UNIT] (Low band version) PARTS PARTS DESCRIPTION DESCRIPTION LOCATION LOCATION 7030008370 S.RES ERJ2GEJ 561 X (560) 65.3/29.5 R145 7030005120 S.RES ERJ2GEJ 102 X (1K) 71.8/15.3 7030005110 S.RES ERJ2GEJ 224 X (220K) 66.3/27.8 R146 7030005120 S.RES ERJ2GEJ 102 X (1K) 70.1/6.0 7030005530 S.RES ERJ2GEJ 100 X (10) 67.3/27.8...
  • Page 24 [MAIN-A UNIT] (Low band version) [MAIN-A UNIT] (Low band version) PARTS PARTS DESCRIPTION DESCRIPTION LOCATION LOCATION R327 7030005120 S.RES ERJ2GEJ 102 X (1K) 54.6/8.3 4030016790 S.CER C1005 JB 1E 103K-T 71.3/42.3 R328 7030007250 S.RES ERJ2GEJ 220 X (22) [EUR-01] B 104.8/29.1 4030017730 S.CER C1005 JB 1H 471K-T 70.3/42.3...
  • Page 25 [MAIN-A UNIT] (Low band version) [MAIN-A UNIT] (Low band version) PARTS PARTS DESCRIPTION DESCRIPTION LOCATION LOCATION C161 4030017340 S.CER C1005 CH 1H 010B-T 92.8/30.0 C315 4030016970 S.CER C1005 JB 1E 223K-T 26.7/22.9 C162 4030016790 S.CER C1005 JB 1E 103K-T 83.7/15.9 C316 4030017740 S.CER C1005 JB 1H 821K-T 24.9/24.6...
  • Page 26 [MAIN-A UNIT] (Low band version) [MAIN-B UNIT] (For high band version) PARTS PARTS DESCRIPTION DESCRIPTION LOCATION LOCATION C499 4030018860 S.CER C1005 JB 0J 105K-T 48.4/20.7 1110007320 S.IC NJM2591V-TE1-#ZZZB 57.8/24.7 C500 4030016930 S.CER C1005 JB 1A 104K-T 28.0/7.3 1110002751 S.IC TA75S01F(TE85RF) 60.0/54.9 1150002390 IC RA30H4552M1-101...
  • Page 27 [MAIN-B UNIT] (For high band version) [MAIN-B UNIT] (For high band version) PARTS PARTS DESCRIPTION DESCRIPTION LOCATION LOCATION 2040001440 S.LC NFE31PT152Z1E9L 7030005220 S.RES ERJ2GEJ 223 X (22K) [USA-02] B 89.6/49.5 (NFM60R20T152) [USA-02] B 97.7/62.2 7030005220 S.RES ERJ2GEJ 223 X (22K) [EXP-04] 2040001440 S.LC NFE31PT152Z1E9L...
  • Page 28 [MAIN-B UNIT] (For high band version) [MAIN-B UNIT] (For high band version) PARTS PARTS DESCRIPTION DESCRIPTION LOCATION LOCATION R215 7030005000 S.RES ERJ2GEJ 471 X (470) 37.2/30.0 R391 7030008310 S.RES ERJ2GEJ 564 X (560K) 31.7/24.3 R220 7030005050 S.RES ERJ2GEJ 103 X (10K) 79.5/19.1 R392 7030008290 S.RES ERJ2GEJ 183 X (18K)
  • Page 29 [MAIN-B UNIT] (For high band version) [MAIN-B UNIT] (For high band version) PARTS PARTS DESCRIPTION DESCRIPTION LOCATION LOCATION C100 4030017620 S.CER C1005 CH 1H 100C-T 91.2/34.9 C252 4030016930 S.CER C1005 JB 1A 104K-T 123.6/16.9 C101 4030017550 S.CER C1005 CH 1H 1R5B-T 64.3/29.5 C253 4030018860 S.CER C1005 JB 0J 105K-T...

  • Page 30: Front Unit

    [MAIN-B UNIT] (For high band version) [FRONT UNIT] PARTS PARTS DESCRIPTION DESCRIPTION LOCATION LOCATION C398 4030016790 S.CER C1005 JB 1E 103K-T 39.4/32.4 1140015761 S.IC HD64F2238BTF13V(FX-3334A-1) T 57.8/24.7 C399 4030016790 S.CER C1005 JB 1E 103K-T 48.3/28.3 1110007620 S.IC NJU7704F3-42A-TE1-#ZZZB 60.0/54.9 C400 4030017710 S.CER C1005 CH 1H 181J-T 80.6/38.3 1130015560 S.IC...
  • Page 31 [FRONT UNIT] PARTS DESCRIPTION LOCATION R133 7030008400 S.RES ERJ2GEJ 182 X (1.8K) 40.5/20.7 R134 7030008400 S.RES ERJ2GEJ 182 X (1.8K) 57.6/21.4 R135 7030005030 S.RES ERJ2GEJ 152 X (1.5K) 27.4/28.4 R136 7030005030 S.RES ERJ2GEJ 152 X (1.5K) 47.2/28.3 R137 7030005030 S.RES ERJ2GEJ 152 X (1.5K) 47.2/27.4 R138 7030005030 S.RES ERJ2GEJ 152 X (1.5K)
  • Page 32 SECTION 8. MECHANICAL PARTS [CHASSIS PARTS] [FRONT UNIT] ORDER ORDER DESCRIPTION QTY. DESCRIPTION QTY. 6450002210 3017-8821 <KIN> 6510004880 MR-DS-E 01 <SSC> 6510027960 04-6294-040-000-800 6510022022 14FLT-SM2-TB (LF) (SN) (M) 8900011800 OPC-1199 2510001221 C052SB500-14 <OSC> 8010019065 2601 CHASSIS-5 [EUR-01] 8010019065 2601 CHASSIS-5 [EXP-01] 8900010503 OPC-1046B-1 (P0.5N40L55) 8010019135 2601 LONG CHASSIS-5...
  • Page 33 MP1 (C) [45 W version] MP1 (C) [25 W version] MP4 (C) MP8 (C)×2 J1 (C) W2 (M) MP2 (M) J4 (M) MAIN-A/MAIN-B UNIT MP3 (M) MP6 (C) MP5 (C)×2 IC3 (M) R14 (F) W1 (F) MP3 (C)×8 J1 (F) MP2 (F) MP7 (F)×2 MP2 (C)
  • Page 34 The combination of top side and bottom side of this SECTION 9. BOARD LAYOUTS • FRONT UNIT (TOP VIEW) [VOL] DS10 [MICROPHONE CONNECTOR] 9 - 1...
  • Page 35 The combination of top side and bottom side of this • FRONT UNIT (BOTTOM VIEW) OPT2 OPT3 TONE C124 B7424A C107 C111 R135 R136 R137 R116 PWON OPT1 LIGHT2 IPTT LIGHT1 MP13 R128 DUSE CPU5V AFVI C112 LED2 R131 C131 R130 PTTO R118...
  • Page 36 The combination of top side and bottom side of this • MAIN-A/MAIN-B UNIT AF GND (TOP VIEW) AF OUT ANT CONNECTOR J1 (CHASSIS) C342 R338 C362 R334 C411 -T8V C107 R199 C459 C271 C415 -TMUT C270 R201 C254 R205 R204 C262 C460 C400...
  • Page 37 The combination of top side and bottom side of this • MAIN-A/MAIN-B UNIT (BOTTOM VIEW) [EXTERNAL SPEAKER JACK] C402 C344 C368 C345 C367 C366 C369 C259 C258 -T8V C409 C261 C332 R202 C106 C408 R203 R329 C272 C265 C276 C108 C256 C302 C392...
  • Page 38 SECTION 10. BLOCK DIAGRAM Q15:DMC561040 400-470MHz 2SC4116 Q16:LDTC144EE 450-520MHz RX VCO RIPPLE 2SK880 RA30H4047M1 (25W) LVIN D52:HVC350B Q14:2SC4226 RA30H4552M1 (25W) BUFF D33:HVB350B RA60H4047M1 (45W) RLVA D14,D15 D3,D5 RA60H4452M1 (45W) 2SC3357 RN752 IC19 AD J 2SC5107 2SC5107 HVD142A 2SC4226 MB15A02 TA75S01F CR-794 TX/RX DRIVE...
  • Page 39 SECTION 11. VOLTAGE DIAGRAM • FRONT UNIT R130 DS10 LDTC114EE 12.29MHz CL-165HR/YG RLED 2.54Vp-p 4.97V R101 C104 CR-915 R131 LDTC114EE CPU5V 1.8K TLED R107 C102 R106 NJU7704F3-42A R132 C103 VOUT LDTC114EE 1.8K LED1 CSFT LNJ426W83RA R133 LDTC114EE HANG R140 1.8K LED2 DAST (OPV3)
  • Page 40 • MAIN-A/MAIN-B UNIT (1/2) C280 R232 R287 470K 0.01 R197 DTC363EK 5.0V RX AF HPF L1SS400 R370 AFOUT LDTC144EE R117 R116 CPU5V CPU5V 120K C168 C167 R330 R355 C169 R285 IC14 0.056 4.7K 0.047 0.047 CD4066BPWR IC16 DISC H:AFON L:MUTE C249 I /O1 LA4425A...
  • Page 41 • MAIN-A/MAIN-B UNIT (2/2) TX 2.4V RX 2.3V 8.1V 7.1V 2SC4116 EP13 MP 1 RX VCO *IC3 MMZ1005Y102CT 6.8K 6.8K EP10 C127 MMZ1005Y102CT RDS2T0R0 C126 TX 6.7V R339 CPU5V CPU5V AS080340-15N AS080340-15N AS080340-15N AS080340-15N AS080340-15N RN752 2SC4226 C332 0.001 R293 3.5P C113 390K...
  • Page 42 Highway 17 Delta, B.C., V4K 5B8, Canada : http://www.icomspain.com Phone : +1 (604) 952-4266 Fax : +1 (604) 952-0090 E-mail : icom@icomspain.com : http://www.icomcanada.com E-mail : info@icomcanada.com Blacksole House, The Boulevard, Altira Business Park, Herne Bay, CT6 6GZ, UK Phone : +44 (01227) 741741...
  • Page 43 S-14716XZ-C1 1-1-32, Kamiminami, Hirano-ku, Osaka 547-0003, Japan © 2011 Icom Inc.

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