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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.
SECTION 1. SPECIFICATIONS ■ General ■ Transmitter • Frequency coverage : (unit: MHz) • Output power (continuously adjustable) Receive Frequency band Output power 0.030–60.000* 136.000–174.000* HF/50 MHz 2 to 100 W (AM: 2 to 30 W)* 420.000–480.000* 144 MHz 2 to 100 W †...
SECTION 2. INSIDE VIEWS • THE VIEW FROM THE TOP OF CHASSIS RF-B UNIT PA-A UNIT PA-B UNIT • THE VIEW FROM THE BOTTOM OF CHASSIS PLL UNIT CONNECT UNIT BPF UNIT VARIABLE CAPACITORS NETWORK UNIT 2 - 1...
SECTION 3. CIRCUIT DESCRIPTION 3-1 RECEIVER CIRCUITS BPF CIRCUITS (BPF UNIT) HF RF CIRCUITS The RX signal from the attenuator circuits is passed ANTENNA SWITCHING CIRCUITS (CTRL UNIT) through an LPF or one of BPFs, depending on the operating RX signal from the antenna connector [ANT1] (J1) or [ANT2] frequency, to remove unwanted out-of-band signals.
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VHF RF CIRCUITS (RF-B UNIT) UHF RF CIRCUITS (RF-B UNIT) VHF band RX signal from the antenna connector [144MHz UHF band RX signal from the antenna connector [430MHz ANT] (CHASSIS; J1) is passed through the SWR detecter ANT] (CHASSIS; J2) is passed through the SWR detecter (PA-B;...
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VHF 1ST RX IF CIRCUITS (RF-B UNIT) VHF 2ND RX IF CIRCUITS (RF-B UNIT) The RX signal from the RF circuits is applied to the 1st RX IF The 1st RX IF signal from the 1st RX IF circuits is divided mixer (Q1051–Q1054) to be mixed with the 1st RX LO signal into two paths, and then each signal is applied to the 2nd (125.15–163.15 MHz) from the PLL UNIT, resulting in the...
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DEMODULATOR CIRCUITS (MAIN UNIT) • SUB BAND The 2nd RX IF signal is passed through the AF SW (HF The 2nd RX IF signal from the 2nd RX IF circuits is passed band; IC3509, VHF band; IC3513, UHF band; IC3517), RX through the MAIN/SUB BAND SW (HF band;...
3-2 TRANSMITTER CIRCUITS 3RD TX IF AND 2ND TX IF CIRCUITS (MAIN UNIT) TX AF CIRCUITS (MAIN UNIT) The 3rd TX IF signal from the modulation circuits is passed The audio signal from the microphone (MIC signal) is through the LPF (IC3601), and then applied to the 3rd TX applied to the MAIN UNIT, through the MICROPHONE mixer (IC3621) to be mixed with the 3rd TX LO signal from CONNECTOR (MIC BOARD;...
1ST TX IF CIRCUITS • HF BAND (RF-A UNIT) The converted TX signal is passed through the LPF, and The 1st TX IF signal from the 2nd TX IF circuits is passed amplifi ed by the AMP (IC601), and then applied to the BPF UNIT. through the 1st TX IF filter (FI911) to remove unwanted signals.
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HF TX AMPLIFIER CIRCUITS (PA-A UNIT) The amplifi ed signal is applied to IC131, through the buffer (IC121) The TX signal from the BPF UNIT is sequentially amplifi ed for phase comparison. The resulting signal of phase comparison by the pre-drive AMP (Q201), drive AMP (Q221, Q222), and is rectifi...
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3-3 FREQUENCY SYNTHESIZER (PLL UNIT) REFERENCE FREQUENCY OSCILLATOR CIRCUIT • UHF BAND The 32 MHz reference signal from the crystal oscillator The cr ystal oscillator (X151) generates the 32 MHz (X151) is doubled by the doubler (Q551, L551, L552), reference frequency signal. This reference signal is applied resulting in the 64 MHz reference clock signal.
• VHF BAND The 1st RX/TX LO signal is passed through the BPF The 1st RX/TX LO signal is passed through the LO SW (RF-B UNIT; D2582, D2583, L2582, L2583, C2583, (IC1454) and BPF (L1101–L1105, C1103–C1113), and C2584, C2587, C2607, C2608), and amplified by the then applied to the LO AMP (IC1171).
3-4 VOLTAGE BLOCK DIAGRAM Line Description Name H3.3V “PWRK ” DC-IN H3.3V FRONT FRONT DOTK Ele-key input. (Dot) 13.8V POWER SW DSHK Ele-key input. (Dash) “PWRS” Headphones connection detect. PHNK H=Connected. H14V SPCHK [SPEECH/LOCK] input. (Pull-up) PBCLK [PBT-CLK] input. (Pull-up) RITCLK [CLEAR] input.
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• MAIN CPU (MAIN UNIT: IC1201) Line Line Description Description Name Name DSPCK DSP clock. VBUS connection detect for USB HUB. VBUS H=USB connection detected. DSPR DSP data. MIC signal detect. UDRXD USB data input. DAVOX H=Input detect. [EXT-SP] (MAIN BAND) connection detect. MSPK CTFL CW TX status.
SECTION 4. ADJUSTMENT PROCEDURE 4-1 PREPARATION ¤ REQUIRED EQUIPMENTS EQUIPMENT GRADE AND RANGE EQUIPMENT GRADE AND RANGE Modifi ed 3.5 mm (1/8’’) monoral plug Audio generator Frequency range : 300–3000 Hz Short plug (AG) Output level : 1–500 mV (Short) RF voltmeter Measuring range : 20–200 mV...
4-2 ADJUSTMENTS ON THE PLL UNIT TRANSCEIVER'S MEASURE ADJUST ADJUSTMENT ITEM OPERATION VALUE CONDITION POINT POINT REFERENCE 1 • Frequency: 14.10000 MHz • Connect a frequency counter to J571 (Verify) 64.000000 MHz FREQUENCY • Mode: USB J571. (±300 Hz) SIGNAL •...
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4-2 ADJUSTMENTS ON THE PLL UNIT (continued) TRANSCEIVER'S MEASURE ADJUST ADJUSTMENT ITEM OPERATION VALUE CONDITION POINT POINT 1ST LO LEVEL 1 • Frequency: 420.000 MHz • Connect an RF voltmeter to the J1281 (Verify) –3.0 dBm (UHF band) (430.000 MHz*) J1281.
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• THE LOCATION OF ADJUST/CHECK POINTS ON THE PLL UNIT CODEC CLOCK LEVEL Check point 3RD TX LO LEVEL Check point J601 To MAIN CODEC L951 L952 R982 R853 C981 L853 R857 J851 R805 C810 C856 R809 T3Lo C855 L801 To MAIN C850 C805...
4-3 ADJUSTMENT ON THE MAIN UNIT TRANSCEIVER'S MEASURE ADJUST ADJUSTMENT ITEM OPERATION VALUE CONDITION POINT POINT PRESET • Receiving – – L3652 Screw the core all the way inside the coil. • THE LOCATION OF PRESET POINT ON THE MAIN UNIT Preset point J3204 J3204...
4-5 ADJUSTMENTS ON THE RF-A UNIT TRANSCEIVER'S MEASURE ADJUST ADJUSTMENT ITEM OPERATION VALUE CONDITION POINT POINT TX ADJUSTMENT • Frequency: 14.100 MHz 1) Connect an RF power meter to [ANT1] L612 Max. TX power (TX power) • Mode: USB [ANT1]. •...
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• THE LOCATION OF ADJUST/CHECK POINTS ON THE RF-A UNIT R1276 IMAGE REJECTION Adjust point IMAGE REJECTION Adjust point C1121 MP1201 RX SENSITIVITY Adjust point MP1101 EP913 EP911 MP651 TX POWER Adjust point J501 TO BPF MIXER BALANCE/ RX SENSITIVITY RX SUPRIOUS Adjust point L723...
4-6 ADJUSTMENTS ON THE RF-B UNIT TRANSCEIVER'S MEASURE ADJUST ADJUSTMENT ITEM OPERATION VALUE CONDITION POINT POINT • S e t t h e a d j u s t m e n t va l u e i n [Tuned BPF 1-2] [MAIN DIAL] "8A"...
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• THE LOCATION OF ADJUST/CHECK POINTS ON THE RF-B UNIT EP81 Q2581 C2592 C2588 Q2433 L2585 C2590 L2583 C2609 C2607 R2590 C2594 C2608 R601 L2582 R2591 C604 J501 C2364 D2585 R603 L2586 R2592 R2582 C527 C2610 MP2582 IC611 L2210 C2471 L2452 C2210 C2455...
4-7 ADJUSTMENT ON THE CTRL UNIT TRANSCEIVER'S MEASURE ADJUST ADJUSTMENT ITEM OPERATION VALUE CONDITION POINT POINT Ω TUNER REFERENCE 1 • Frequency: 3.55 MHz CP31 Min. voltage 1) Connect a 50 dummy load to • [TUNER]: Through [ANT1]. • TX power: Max. 2) Connect a voltmeter to CP31.
4-8 ADJUSTMENTS ON THE FUNCTION DISPLAY 1) Connect the short plug (Page 4-1) to [REMOTE], and while holding down [MENU] and [SSB], turn ON the power. 2) The main adjustment menu appears. NOTE: If the optional UX-9100 is installed, remove it before the adjustment. ¤...
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¤ ID ADJUSTMENTS (continued) TRANSCEIVER'S MEASURE ADJUST ADJUSTMENT ITEM OPERATION VALUE CONDITION POINT POINT Ω ID ADJUSTMENT 6 • Display: "ID SET HF" Power – Push [F-5]. 1) Connect a 50 dummy load to (HF band) • Transmitting supply line (Meaure the [ANT1].
¤ TRANSMIT ADJUSTMENTS • Transmit adjustment menu. V H F U H F Stores the value and move to the next item. Reterns to the previous screen. MENU Starts the transmit adjustments (HF band). Starts the transmit adjustments (UHF). (See below) (Page 4-16) Starts the transmit adjustments (VHF).(Page 4-14) •...
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• TRANSMIT ADJUSTMENTS (VHF band) TRANSCEIVER'S MEASURE ADJUST ADJUSTMENT ITEM OPERATION VALUE CONDITION POINT POINT PREPARATION • Connect an AG and millivoltmeter – – – to [MIC], and then set it as; Frequency : 1.5 kHz – Level : 1 mV •...
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• TRANSMIT ADJUSTMENTS (VHF band) (continued) TRANSCEIVER'S MEASURE ADJUST ADJUSTMENT ITEM OPERATION VALUE CONDITION POINT POINT TX POWER 20 • Display: "POWER 1.2G" • Push [F-5]. (Automatically starts "FORV" [MAIN DIAL] 2.600 V (1.2 GHz BAND) • Receiving to transmit.) on the Push [F-5].
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• TRANSMIT ADJUSTMENTS (UHF band) TRANSCEIVER'S MEASURE ADJUST ADJUSTMENT ITEM OPERATION VALUE CONDITION POINT POINT PREPARATION • Connect an AG and millivoltmeter – – – to [MIC], and then set it as; Frequency : 1.5 kHz – Level : 1 mV •...
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¤ REFERENCE ADJUSTMENTS • Reference adjustment menu. R E F A P C V C C Stores the value and move to the next item. Reterns to the previous screen. MENU Select the APC reference adjustment. Select the reference frequency adjustment. •...
¤ RECEIVE ADJUSTMENTS • Receive adjustment menu. V H F U H F Stores the value and move to the next item. Reterns to the previous screen. MENU Starts the receive adjustments (HF band). Starts the transmit adjustments (UHF). (See below) (Page 4-20) Starts the receive adjustments (VHF).
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• RECEIVE ADJUSTMENTS (VHF band) TRANSCEIVER'S MEASURE ADJUST ADJUSTMENT ITEM OPERATION VALUE CONDITION POINT POINT TUNED BPF NOTE: DO NOT change the output level of the SSG until the beeps sound. 1 • Display: "Tuned BPF 1-1 VHF" • Connect an SSG to [144MHz –...
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• RECEIVE ADJUSTMENTS (UHF band) TRANSCEIVER'S MEASURE ADJUST ADJUSTMENT ITEM OPERATION VALUE CONDITION POINT POINT TUNED BPF NOTE: DO NOT change the output level of the SSG until the beeps sound. 1 • Display: "Tuned BPF 1-1 UHF" • Connect an SSG to [430MHz –...
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• FRONT UNIT MP65(C)×4 MP66(C) MAIN UNIT MP41(C)×9 JACK UNIT EP2(F) MP34(F)×10 EP3(F) J1(MIC) MIC UNIT MP32(F)×17 MP43(F) MP2(F) DISPLAY UNIT MP454(DI) MP453(DI) MP455(DI) DS451(DI) DS111(DI) MP37(F) MP451(DI) MP38(F) MP452(DI) VR-B UNIT MP456(DI)×4 VR-B UNIT MP9(F) MP6(F) MP40(F) MP17(F)×2 MP10(F) MP12(F) UNIT ABBREVIATIONS MP11(F)
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SECTION 7. BOARD LAYOUTS The combination of this page and next page shows the top side and bottom side of actual P.C. board. • DISPLAY UNIT J451 J452 (TOP VIEW) R262 R611 R634 R622 R612 R633 C375 R632 R623 R613 C374 C379 R264...
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The combination of this page and next page shows the top side and bottom side of actual P.C. board. • DISPLAY UNIT (BOTTOM VIEW) POWER SATELITE S601 S611 S621 S631 S731 MAIN S602 S612 S622 S632 /SUB TRANSMIT S732 S603 S613 S623 S633...
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The combination of this page and next page shows the top side and bottom side of actual P.C. board. • PLL UNIT J601 To MAIN C2152 CODEC MP661 (TOP VIEW) L952 L951 R982 R853 C678 Q2151 C981 L853 R857 C2182 D2121 J851 R805...
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The combination of this page and next page shows the top side and bottom side of actual P.C. board. • PLL UNIT R2177 (BOTTOM VIEW) C901 R903 R2173 R902 C2171 R2174 R2171 C902 R2176 R904 C904 C2153 R909 R678 R905 L1531 L901 MP671...
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The combination of this page and next page shows the top side and bottom side of actual P.C. board. • MAIN UNIT (TOP VIEW) J3204 R3903 X3901 R3904 R3901 J3203 J6002 C3901 C3905 C3902 R5015 EP5003 R3902 R3486 TO CTRL J3204 J3203 CP1242...
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The combination of this page and next page shows the top side and bottom side of actual P.C. board. • MAIN UNIT (BOTTOM VIEW) MP5001 C4601 C5002 R4613 L4681 C5007 EP4605 C3497 C5205 C3491 R4626 C5018 C5023 C5017 C5022 C5016 C5021 C5015 C5014...
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The combination of this page and next page shows the top side and bottom side of actual P.C. board. • CONNECT UNIT [ALC] [SEND] (TOP VIEW) [DATA1] [KEY] [REMOTE] [EXT-SP (MAIN)] [EXT-SP (SUB)] [USB] [DATA2] [ACC] R611 R616 C105 J851 Q102 J1401 C1432...
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The combination of this page and next page shows the top side and bottom side of actual P.C. board. • CONNECT UNIT (BOTTOM VIEW) [EXT-SP (SUB)] [EXT-SP (MAIN)] [REMOTE] [EXT-SP (MAIN)] [SEND] [ALC] [KEY] C611 EP602 R614 R615 EP851 R103 EP852 C1111 R617...
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The combination of this page and next page shows the top side and bottom side of actual P.C. board. • PA-A UNIT (TOP VIEW) C1253 C1258 C1252 Q1255 Q1257 Q1253 Q1263 Q1251 Q1259 Q1261 IC432 Q1256 Q1258 Q1254 Q1264 Q1252 Q1260 Q1262 C505...
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The combination of this page and next page shows the top side and bottom side of actual P.C. board. • PA-A UNIT (BOTTOM VIEW) C510 C519 C520 C521 C551 C612 C607 C604 R344 C608 R752 R346 C603 R751 C714 C463 R363 R364 C415...
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The combination of this page and next page shows • PA-B UNIT the top side and bottom side of actual P.C. board. (TOP VIEW) C824 L451 C455 J471 W801 TO RF-B L452 C457 R821 R485 C823 C456 L773 C483 L472 C521 C821 L471...
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The combination of this page and next page shows • PA-B UNIT the top side and bottom side of actual P.C. board. (BOTTOM VIEW) R512 C815 C512 R804 R995 R511 R513 R812 D811 R802 C814 R514 C812 C802 R994 C513 C777 MP803 R996...
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The combination of this page and next page shows the top side and bottom side of actual P.C. board. • NETWORK UNIT J201 (TOP VIEW) TUIN J201 RL45 R201 R202 R211 R212 C218 RL35 C217 C216 RL15 B7159C RL25 J201TO CTRL NETWORK C176 RL165...
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The combination of this page and next page shows the top side and bottom side of actual P.C. board. • NETWORK UNIT (BOTTOM VIEW) 7 - 14...
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The combination of this page and next page shows the top side and bottom side of actual P.C. board. • CTRL UNIT (TOP VIEW) V100 V105 V110 V115 V120 V125 V130 V135 V140 V145 V150 V155 V160 V165 V170 IC41 C1001 R1008 C1002...
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The combination of this page and next page shows the top side and bottom side of actual P.C. board. • CTRL UNIT (BOTTOM VIEW) V170 V165 V160 V155 V150 V145 V140 V135 V130 V125 V120 V115 V110 V105 V100 IC31 C121 C101 D101...
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The combination of this page and next page shows the top side and bottom side of actual P.C. board. • BPF UNIT (TOP VIEW) J141 • JACK UNIT (TOP VIEW) C140 J201 R201 L134 L141 C201 Q132 L133 C131 R203 R141 C203 C139...
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J102 The combination of this page and next page shows the top side and bottom side of actual P.C. board. • BPF UNIT (BOTTOM VIEW) D134 • JACK UNIT C132 R133 C161 (BOTTOM VIEW) R162 L135 C141 R161 R163 L535 L531 R538 R303...
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The combination of this page and next page shows the top side and bottom side of actual P.C. board. • RF-A UNIT (TOP VIEW) C1011 R1022 J1011 MAIN L912 R1077 FI911 C1051 L915 L1051 Q741 R1078 L1032 C916 C1078 C613 MP1071 C1032 RF-A...
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The combination of this page and next page shows the top side and bottom side of actual P.C. board. • RF-A UNIT (BOTTOM VIEW) R1011 C781 R763 R761 R781 R762 D781 C1072 D601 C1012 R742 C601 MP911 C1001 Q1072 C1077 D911 R601 Q1071...
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The combination of this page and next page shows the top side and bottom side of actual P.C. board. • RF-B UNIT (TOP VIEW) MP2701 J1751 MP2496 L2681 L1352 J1351 C1358 C1356 C1355 C2682 R1674 MP1671 L2705 C2654 C2655 R2703 L1353 C2359 C2363...
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The combination of this page and next page shows the top side and bottom side of actual P.C. board. • RF-B UNIT (BOTTOM VIEW) D2702 R1357 C1354 C2713 R2705 R2701 L2802 C2705 C2702 R2781 R2633 C2358 C2805 C2714 R2631 R2632 R1362 R1358 L2352...
FRONT UNIT To CONNECT UNIT To MAIN UNIT CHASSIS UNIT W1069-W1072 CHASSIS UNIT 8900019900 OPC-2135 VR-A BOARD NRBK NRBK NRAK NRAK BOARD NOTBK NOTBK NOTAK NOTAK PBT1BK PBT1BK PBT1AK PBT1AK PBT2BK PBT2BK PBT2AK PBT2AK JACK BOARD M-CH PHEM PHEM PHOS PHOS BOARD PHOM...
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• MAIN UNIT (MAIN-5) ISET R191 ISET IKEY# R192 IKEY ISTA R193 ISTA DRESL5 R194 DRESL THRI_ R195 THRI R197 REFV R198 FORV ANTS R199 ANTS TGMSK DV_MOD HRXS R200 HRXS M RGMSK HTXS R201 HTXS 3R3V MDV_AF MAIN-3 I C6001 EP204 -12V -12V...
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• MAIN UNIT (MAIN-6) 3R3V 3R3V MAIN-5 MC K M DAT M DAT MP1Y3 R1161 M STB for PLL CP1161 MSTB for CONNECT MP2X3 R1162 ASTB CP1162 ASTB 3R3V H3R3V MP2Y3 R1163 RASTB C1161 CP1163 RASTB for RF-A RBSTB 0. 1 RBSTB for RF-B 3R3V...
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• RF-A UNIT (RF-A-1) +10V L1221 R1204 1000U RF-A-2 -12V 6.8k C1224 220P HRIF R1285 R1223 R1224 R1228 36 KHz To MAIN 3.9K I C1221 I C1222 R1225 R1229 TS522ID NJM074M C1202 Q1201 R1303 C1301 HRIF R1201 1 MSVA C1221 R1222 C1225 KTC3770U...
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