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F3GT/F3GS Service Manual

1. Top view 5 2 PLL ADJUSTMENT MEASUREMENT ADJUSTMENT ADJUSTMENT ADJUSTMENT CONDITIONS VALUE UNIT LOCATION UNIT PLL LOCK Operating frequency 146 000 MHz MAIN Connect a digital MAIN VOLTAGE Receiving meter to check o z e Transmitting EM 1 5 2 5 V MAIN unit HF power meter L11 PLL lock voltage adjustment TE a i EF iQ LV o PLL lock voltage a check point TO o Bottom view 5 3 SOFTWARE ADJUSTMENT Select an operation using 1 keys then set specified value using lt gt keys on the connected computer keyboard MEASUREMENT ADJUSTMENT ADJUSTMENT CONDITION VALUE UNIT LOCATION REFERENCE Operating frequency 146 000 MHz Top Loosely couple a frequnecy 146 00000 MHz FREQUENCY High Low switch Low counter to the antenna connec TXF Connect the RF power meter or 50 Q tor dummy load to the antenna connector Transmitting Transmitting 146 00146 MHz OUTPUT Operating frequency 146 000 MHz Top Connect an RF power meter to 1 0W POWER High Low switch Low panel the antenna connector Transmitting POWER HI High Low switch High 5 0 W Transmitting Operating frequency 146 000 MHz Connect an FM deviation meter 4 2 kHz W type DEVIATION e High Low switch Low to the antenna connector 2 1 kHz N type MOD Connect the audio g
2. Enter to Sweep 12 Enter to Start NOTE The above values for settings are example only Each transceiver has its own specific values for each setting 1 Transceiver s connection state 8 FM deviation 2 Reload adjustment data 9 Squelch level 3 Connected DC voltage 40 Receive sensitivity automatically 4 PLL lock voltage 11 Receive sensitivity manually 5 Operating channel select 12 Reference frequency 6 RF output power 13 Receive sensitivity measurement 7 DTCS wave form Adjustment items 3 conductor 3 5 d mm plug to IC F3GT GS SP jack Fe cable E CLONE OPC 478 e CONNECTION Standard signal generator to the antenna connector 0 1 uV to 32 mV to MIC Audio generator 127 dBm to 17 dBm CAUTION DO NOT transmit while ja san SSG is connected to the antenna connector to an RS 232C port Attenuator s meter 40 dB or 50 dB HF meter 0 1 Frequency counter DB9 female plug incl level converter circuit to SP JIG cable DC POWER CABLE CONNECTIONS SOFTWARE ADJUSTMENT M PLL ADJUSTMENT DC POWER SUPPLY Soldering DC cable here
3. olol l p XP6501 8 5 S 80942ANMP DD6 JER URE GEG lies 9 e Q 222222 gt gt gt gt 44 gt 22 lt lt lt 9 9 98288525008 SWITCH CD LLI R143 TP76NOON 15F 10KA 2251 PBO ANO C174 C159 C160 R153 R152 R154 C244 C236 AVSS P 0 01 22 22k 470P 0 01 470k 470k 470k 0 01 0 01 TEST x2 Lg To 6 a as LS5 XOUT 8 td R164 9802 r R T T HN58X2432TI 100 k F3GT only LT mna Uu u P2O RQ ADTRG HOE 4 P21 SCK1 SI 13 22 1 SO 14 J2 P23 SO1 KU DAST 15 lt CLIN 18 EXT MIC Q L D H CLOUT 171 PLST 18 557 G0 S2 NOIS 19 P17ZIRG3STMIF JPM1990 2013R L __ 20 Pi 6 IRO2 S 15 1 C165 6 D27 r P14 AFOUT 0001 0001 RB706F 40 231pP13 TMIG opTz 24 D SP OPTs e TMORH Q im P11 TMOFL CLONE R206 R230 470 k Wide only gt 2 QL J3 2 R211 LL 5 2222086 NJM2904V 100 k E g99oosss C167 C168 C169 R192 R199 IC12B u 5 os lt lt x lt P n n gt gt gt gt gt n n n 0000 47P 0 001 0 001 C201 R198 1 Narrow NJM2904V 5 0 1 18k 47k Wide Q35 09 eo e 25 4116 R
4. 2 will be increased In such cases VOLTAGE LINE the differential amplifier output voltage pin 1 is decreased to reduce the driving current LINE DESCRIPTION The voltage from the attached battery pack The same voltage as the HV line battery volt age which is controlled by the power swtich 4 3 PLL CIRCUIT control 2 Gommon 5V convened torn the VCG Ine by the y E q y E reference regulator circuit IC6 The output volt pares the phase of the divided VCO frequency to the refer age is applied to the CPU IC8 the 5 V regula ence frequency The PLL output frequency is controlled by tor circuit Q18 Q19 and reset circuit IC11 the divided ratio N data of a programmable divider 5 V for transmitter circuits regulated by the 5 ircuit 022 The PLL circuit contains the VCO circuit Q7 08 The oscil regulator Circuit lated signal is amplified at the buffer amplifiers Q6 Q5 and then applied to the PLL IC IC1 pin 2 EN 5 V for receiver circuits regulated by the R5 reg ulator circuit Q21 Common 5 V converted from the VCC line by the The PLL IC contains a prescaler programmable counter S5 regulator circuit Q18 Q19 programmable divider and phase detector etc The entered signal is divided at the prescaler and programmable counter section by the N data ratio from the CPU The divided signal is detected on phase at the phase detector using the refer ence frequency Th
5. C1608 JB 1H 102 C1608 JB 1H 102 C1608 CH 1H 820J T A C1608 JB 1H 102 C1608 JB 1H 102 C1608 JB 1H 102 C1608 JB 1H 102 ECST1CY475R C1608 CH 1H 270J T A C1608 JB 1H 102K T A C1608 JB 1H 102 C1608 CH 1H 0608 C1608 JB 1H 102 C1608 CH 1H 180 C1608 CH 1H 120J T A C1608 JB 1H 102 C1608 CH 1H 220J T A C1608 CH 1H 0508 C1608 JB 1H 102 C1608 JB 1H 102 C1608 CH 1H OR5B T A ECUE1E102KBQ ECUE1E102KBQ ECUE1H020BCQ ECUE1H2R5BCQ C1608 JB 1H 102 ECUE1H300JCQ C1608 JB 1H 102 ECUE1E102KBQ ECUE1H820JCQ C1608 JB 1H 102 C1608 JB 1C 104KT N ECST1AY225R ECST1CY684R ECSTOJY106R C1608 CH 1H 470J T A C1608 CH 1H 220J T A C1608 CH 1H 180J T A C1608 JB 1H 102K T A C1608 JB 1E 103K T A C1608 JB 1E 103K T A C1608 JB 1H 102 C1608 CH 1H 120J T A C1608 CH 1H 090D T A C1608 CH 1H 560J T A C1608 CH 1H 040B T A C1608 CH 1H 020B T A C1608 CH 1H 180J T A C1608 CH 1H 100D T A C1608 CH 1H 330J T A MAIN UNIT 4030006900 4030011600 4550006150 4030011600 4030011600 4030006990 4030007010 4030009920 4030009530 4030007130 4030006860 4030009510 4030006860 4030007160 4030009920 4030006900 4030006860 4030006860 4030006860 4030009920 4030007130 4030006860 4030009510 4030006860 4030007160 4030009920 4030009920 4030006860 4030007080 4030007100 4030007030 4030006860 4030006900 4030007090 4030007100
6. Intermediate frequencies Sensitivity Squelch sensitivity Adjacent channel selectivity Spurious response rejection Intermodulation rejection ratio Hum and noise Audio output power at 7 4 V DC Ext speaker connector 136 000 150 000 MHz 16 W type 8K50F3E N type 32 ch 16 channels x 2 banks 2 BANK version 16 ch 16 channel version 7 2 V DC negative ground supplied battery pack Transmit at High 5 0 W 1 6A at Low 1 0 W 700 mA rated audio 250 mA stand by 70 mA Receive 0 0005 30 C to 60 C 22 F to 140 F 54 W 132 H x 35 D mm 2 922 W x 5 3 46 H x 1 3 6 D in 370 g 13 1 02 5 W 1 W High Low Variable reactance frequency modulation 5 0 kHz W type 2 5 kHz N type 73 dBc typical 60 dB typical Less than 3 at 1 kHz 40 deviation 70 100 of max deviation 3 conductor 2 5 d mm 140 2 2 Double conversion Superheterodyne system 1 31 05 MHz 2nd 450 kHz 0 25 uV at 12 dB SINAD typical 0 25 uV at threshold typical 65 dB typical 70 dB typical 70 dB typical 40 dB typical 500 mW typical at 5 distortion with an 8 Q load 3 conductor 3 5 d mm 1 8 Q Specifications are measured in accordance with EIA TIA 603 All stated specifications are subject to change without notice or obligation SECTION 2 INSIDE VIEWS MAIN UNIT TOP VIEW
7. PN Input port for the initial version sig CTCIN ecording Input port for the switch CLIN Input port for the cloning signal PTTO High While PTT switch is pushed CLOUT Outputs the cloning signal Input port for the battery s type detec BDET PLST Tape strobe signals to the PLL IC tion pin 3 REMO Input port for the remote control signal NOIS Input for for noise signals pulse type from external MIC HM 75 rac Outputs BUSY detection 98 SD Input port for the RSSI detection LVIN Input port for the PLL lock voltage port Input port for the PLL lock voltage the PLL lock voltage OPV3 Input port for the optional unit detec 36 38 OPV1 tion signal from J5 TEMP Input port for the transceiver s internal temperature detection 44 47 KR3 Output ports for key matrix KRO Low When the key is pushed Outputs RX mute control signal RMUT Input port for the RX mute signal from optional units 4 5 2 OUTPUT EXPANDER IC IC10 Output TX mute control signal Port Description MMUT Input port for the TX mute signal name from optional units 2 3 4 7 Output tunable bandpass filter control Outputs low pass filter cut off frequen 10 11 signals DUSE cy mE signal when DTCS is acti DAST Input port for strobe signal from the Valea CPU IC8 pin 15 1 55 regulator control signal 52 S5C Input for clock signal from the O
8. Symbol LG Symbol QO Symbol MCY Symbol FJ4 2SK2973 2SK2974 3SK239 A 3SK293 DTA144 EU Symbol K1 Symbol K2974 Symbol XR Symbol UF Symbol 16 D D D top view DTC144 EU DTC144 TU UN911 H XP6501 AB Symbol 26 Symbol 06 Symbol 6P Symbol 5N B B B E1 E2 E E B2 e DIODES 1SV288 DAN202K HVC350B HVU350 MA2S077 Symbol TJ Symbol N Symbol BO Symbol 4 Symbol S pink PII MA77 MA8030 H RB706F 40 Symbol 4B Symbol 3 0 Symbol 3J a SECTION9 BOARD LAYOUTS MAIN UNIT TOP VIEW VIEW FE E a Tubs IN R207 R22 15 a 126 Te SIR EHE Er i S E pug E E s s t 5 to the OPTIONAL unit SECTION 10 DIAGRAM J5 AXN330C038 D1 MA77 T REF ET UPS SS Q7 2805085 Y Q6 28C4215O Q4 28C42150 04 MA77 Q83 28C5085Y Q2 2SK2973 Q1 25 2974 ba MAT OPTION UNIT 08 25 5085 i i 2TONE or 5TONE C PLL IC PRE ANT gt gt s j gt gt gt gt TAA P DRIVE AME LPF P LPF X1 CR 664 15 3 MHz d Q5 2SC4215 0 m AF PTT MMUT P IC3A NJM2902V D32 RB706F 40 RMUT AFONOP lt Q37 DTA144EU D33 RB706F 40 TXC APC 0 034 25 1069 4 cont Q10 2SC4116
9. 0 01 0 01 4 i 0 001 FL1 31 05 2 AR 0 50 Wide 2 1 8 k Narrow C105 C104 R72 100k 0 1 pH 56 C24 0 001 C88 0 001 2 1 lt lt 2505085 100 280 17 47 P 0 001 X TX 2 17 V RX V 2 0 53 Wide C87 R59 C138 R252 L17 0 01 470 0 001 100k P Narrow 50 nH 086 C85 100k 56nH 5 180 N 1 15 160 150 TX 1 69 V RX 0 03 V L24 27 nH C8 L2 L1 ANT 0 001 28 nH 32 nH D1 MA77 C4 C2 9P 6P 2 RB706 F40 C5 C3 C1 R1 18P 30 P 15P 82k TX 1 61 V C252 RX 0 67 V Q37 DTA144EU 076 9 C75 C243 83 8P MA8030 H 0 1 0 001 2 2k IC3A NJM2902V COMPLETE VIEW SECTION 11 VOLTAGE DIAGRAM PLST _ 18 268 TXD S2 m NOIS 19 P75 SEG22 1k 624 P73 SEG20 P72 SEG19 54 TX 0V R67 R65 R63 R58 NJM2902V R136 F DET 100 k 100 k RX 4 76 V 100k C84 C82 100 k 100 T 0 A 0 001 0 001 5 9
10. 4030006860 4030006900 4030006860 4030007000 4030009350 4030006900 4030006860 4030006860 4030008900 4030006900 4030007120 4030007140 4030006860 4030006900 4030008680 4030011600 4030007170 4030007170 4030006860 4030006900 4030006870 4030008470 4030008680 4550006680 4030006900 4030008770 4030011600 4030007170 4030007160 4030008770 4030008890 4030008900 4030006860 4030011600 4030011600 4030006860 4510004630 4030006860 4030008630 4030006900 4030011600 4550006200 4030007090 4030008920 4510006940 4550006200 4510004630 S CERAMIC S CERAMIC S TANTALUM S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S TANTALUM S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC C1608 JB 1E 103K T A C1608 JB 1C 104KT N ECST1CY105R C1608 JB 1C 104KT N C1608 JB 1C 104KT N C1608 CH 1H 080D T A C1608 CH 1H 100D T A C160
11. R84 52 gt 904969000000000 10 95 TO 390 gt 0 1 2k NYA R155 056 0 oN tia 100 0 01 680k TX 0V U RX 3 47 V oo 78 P97 SEG40 75 secs P93 SEG36 rene L13 C65 C67 SFPC450G Narrow 1 1 0HH op 10P SFPC450E Wide 4 duc Z E T JJ J RX 4 99 V jy y 3 R265 Poo sEGa5 10 SC SEG P91 SEG34 69 SEGS 2504116 GR C53 C66 P90 SEG33 3E84 18P 18P CTA SEG 68 SEG 5 11 IC8 P85 SEG30 SEGI R88 C121 j SCK 12 HD6473877H P84 SEG29 SEG7 33 k Narrow 220 eo P82 SEG27 R86 P81 SEG26 C122 peu SE Gee T gt gt gt SDA R87 220P OO Wide P77 SEG24 PRB 2 2 k Narrow P76 SEG23 470 k Wide lt P75 SEG22 87 DISCIN P74 SEG21 P73 SEG20 R136 F DET 72 5 19 100 P71 SEG18 99 L AFOUT P70 SEG17 P67 SEG16 T NO OOO 9 5 5 58554358 gt 5 2 x 2 lt 2 OD 0 545 OO 0 X ti S999SZZZZZZZZoeooooo SEGI YN OG c 10 10 C lt K gt gt LO LO LO CO cO oo SEG2 gt 000 QQ SEG3 SEG4 SEG5 241 SEG6 M SEG7 SEG8 SEG9 KT SECO SEG11 SEG12 94 SEG13 SEG14 SEG15 SEG16 C199 246 R245 0296 7 SEG17 1 100k 100k 0 001 0 001 SEG18 SEG19 SEG
12. S RESISTOR S RESISTOR S RESISTOR S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S TANTALUM S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S TANTALUM S TANTALUM S TANTALUM S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC ERJ3GEYJ 105 V ERJ3GEYJ 105 V ERJ3GEYJ 105 V MQ 0 ERJ3GEYJ 104 100 ERJ3GEYJ 104 V 100 ERJ3GEYJ 104 V 100 1 1 ERJ3GEYJ 473 V 47 kQ ERJ3GEYJ 334 V 330 ERJ3GEYJ 104 V 100 ERJ3GEYJ 471 V 470 Q ERJ3GEYJ 560 V 56 Q ERJ3GEYJ 180 V 1 Q ERJ3GEYJ 333 V 33 kQ ERJ3GEYJ 103 V 10 kQ ERJ3GEYJ 103 V 10 kQ ERJ3GEYJ 182 V 1 8 kQ Narrow ERJ3GEYJ 180 V 1 Q Wide ERJ3GEYJ 683 68 Wide ERJ3GEYJ 154 V 150 kQ Narrow ERJ3GEYJ 104 V 100 ERJ3GEYJ 153 V 15 kQ ERJ3GEYJ 473 V 47 kQ Narrow ERJ3GEYJ 104 V 100 Wide C1608 CH 1H 150J T A C1608 CH 1H 0608 C1608 CH 1H 300J T A C1608 CH 1H 090D T A C1608 CH 1H 180J T A C1608 JB 1H 102K T A C1608 JB 1H 102
13. Antenna swtching circuit D1 D2 D8 MA77 Power amplifier 01 25 2974 Low pass filter circuit I NJM2902V Q37 DTA144EU FM IF IC IC2 TA31136FN D NOTE IF amplifier Q14 25024215 O Mic amplifier circuit PLL IC IC1 LPD3140GS TX RX switch 03 04 77 44 4 gt a BOTTOM VIEW RF amplifier Q12 3SK293 1st mixer Q13 5 239 Crystal filter FH FL 311 FL 312 WIDE X1 CR 664 15 3 MHz VCO circuit i D A converter IC10 M62363FP 560C see H J EEPROM EISE C7 HN58X2432TI CPU IC8 HD64738747H SECTION3 DISASSEMBLY AND OPTION INSTRUCTIONS 3 1 DISASSEMBLY INSTRUCTION e REMOVING THE CHASSIS PANEL CD Unscrew 1 nut and remove 1 knob 2 Unscrew 2 screws 3 Take off the chassis in the direction of the arrow 4 Unplug J6 to separate front panel and chassis nickel 2mm 2 Chassis Front panel REMOVING THE MAIN UNIT D Remove the searing rubber 2 Unsolder points D and unscrew 1 nut 3 Unscrew 4 screws E and 5 screws silver 2mm to separate the chassis and the MAIN unit 4 Take off the MAIN unit in the direction of the arrow black 2mm 2 silver 2mm x 6 Shield cover Chassis 3 2 OPTIONAL UNIT INSTALLATIONS 1 Remove the option cover 2 Remove the bottom protective paper of spoge 3 Connect one of UT 96
14. GR PTT Q17 UN911H MIC VCC 0 FL 311 Narrow FL 312 Wide 011 HVU350 D9 HVU350 014 25 42150 31 05 2 D12 HVU350 Q12 3SK293 D10 HVU350 Q15 2SB1132R AF 016 6501 ABI K D26 DAN202K IC5 TA7368F LE d SFPC450G Narrow C10 5506450 Wide 450kHz 10 VR IC6 E Q18 2SB1132 R _ 019 6501 MIC JACK 1238 NJM2902V 7 4 BU4066BCFV AF OUT D27 RB706F 40 1 HPF gt zi CLONE AUZ 1 7 SP JACK NJM2902V CPU 8 HD64738747H N T SLIT LAL N 036 2504116 GR POWER SW 4 Z 0 BDET N EEPROM x IC7 58 2432 4 COMMON LINE 1 LINE TX LINE l 10 1 SECTION 11 VOLTAGE DIAGRAM AFOUT AFOUT DISCIN DISCIN VCC VCC T5 15 R5 R5 S5 S5 J5 EU 5V 16 85 55 SO 15 OPV1 5 17 S _ LVIN LVIN cf O 14 OPV2 I 18 50 _ LY SO 13 OPV3 qp 19 ee R5 R5 SO 12 GND EN 0 20 CCS S5 S5 SO 11 3 ELI _
15. RESISTOR 184 V 180 7030003650 S RESISTOR ERJ3GEYJ 563 V 56 S Surface mount MAIN UNIT ORDER ORDER TE RT RED TET 030003800 030003800 030003800 030003680 030003680 7030003680 7030003640 7030003740 7030003680 7030003400 7030003290 7030004050 7030003620 7030003560 7030003560 7030003470 7030004050 7030003660 7030003700 7030003680 7030003580 7030003640 7030003680 4030007030 4030011770 4030008560 4030007000 4030007040 4030006860 4030006860 4030006860 4030006860 4030007120 4030006860 4030006860 4030006860 4030006860 4550006540 4030007060 4030006860 4030006860 4030011770 4030006860 4030007040 4030007020 4030006860 4030007050 4030009920 4030006860 4030006860 4030009500 4030013850 4030013850 4030014020 4030014030 4030006860 4030016800 4030006860 4030013850 4030014440 4030006860 4030011600 4550006170 4550006590 4550006200 4030007090 4030007050 4030007040 4030006860 4030006900 4030006900 4030006860 4030007020 4030007000 4030007100 4030009910 4030009520 4030007040 4030007010 4030007070 S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR
16. RESISTOR ERJ3GEYJ 104 100 7030003340 S RESISTOR ERJ3GEYJ 151 V 150 0 7030003680 S RESISTOR 104 V 100 kQ 7030003600 S RESISTOR ERJ3GEYJ 223 V 22 7030003520 S RESISTOR ERJ3GEYJ 472 V 4 7 kQ 7030003480 S RESISTOR ERJ3GEYJ 222 V 2 2 kQ 7030003320 S RESISTOR ERJ3GEYJ 101 V 100 Q 7030003680 S RESISTOR ERJ3GEYJ 104 V 100 7030003680 S RESISTOR ERJ3GEYJ 104 V 100 F3GT only 7030003560 S RESISTOR ERJ3GEYJ 103 V 10 7030003680 S RESISTOR ERJ3GEYJ 104 V 100 kQ 7030003330 S RESISTOR ERJ3GEYJ 121 V 120 Q F3GS only 7030003320 S RESISTOR ERJ3GEYJ 101 V 100 Q 7030003560 S RESISTOR ERJ3GEYJ 103 V 10 7030003410 S RESISTOR ERJ3GEYJ 561 V 560 Q Narrow 7030003560 S RESISTOR ERJ3GEYJ 103 V 10 kQ 7030003450 S RESISTOR ERJ3GEYJ 122 V 1 2 Wide 7030003570 S RESISTOR ERJ3GEYJ 123 V 12 kQ Narrow 7030003680 S RESISTOR ERJ3GEYJ 104 100 7030003560 S RESISTOR ERJ3GEYJ 103 V 10 Wide 7030003460 S RESISTOR ERJ3GEYJ 152 V 1 5 7030003640 S RESISTOR ERJ3GEYJ 473 V 47 7030003480 S RESISTOR ERJ3GEYJ 222 V 2 2 Wide 7030003580 S RESISTOR ERJ3GEYJ 153 V 15 7030003510 S RESISTOR 392 V 3 9 Narrow 7030003440 S RESISTOR ERJ3GEYJ 102 V 1 7030003400 S RESISTOR ERJ3GEYJ 471 V 470 Q 7030003510 S RESISTOR ERJ3GEYJ 392 V 3 9 703000
17. V 220 7030003680 S RESISTOR ERJ3GEYJ 104 V 100 ka 7030003570 S RESISTOR ERJ3GEYJ 123 V 12 7030003590 S RESISTOR ERJ3GEYJ 183 V 18 7030003470 S RESISTOR ERJ3GEYJ 182 V 1 8 7030003640 S RESISTOR ERJ3GEYJ 473 V 47 Wide 7030003800 S RESISTOR ERJ3GEY 105 V 1 MQ 7030004050 S RESISTOR ERJ3GEYJ1ROV 1Q Narrow 7030003200 S RESISTOR ERJ3GEYJ 100 V 10 0 7030003640 S RESISTOR ERJ3GEYJ 473 V 47 kQ Wide 7030003570 S RESISTOR ERJ3GEYJ 123 V 12 7030004050 S RESISTOR ERJ3GEYJ1ROV 1Q Narrow 7030003680 S RESISTOR ERJ3GEYJ 104 V 100 7030003780 S RESISTOR ERJ3GEYJ 684 V 680 7030003390 S RESISTOR ERJ3GEYJ 391 V 390 0 Wide Narrow only 7030003400 S RESISTOR ERJ3GEYJ 471 V 470 Q Narrow 7030003640 S RESISTOR ERJ3GEYJ 473 V 47 7030003700 S RESISTOR ERJ3GEYJ 154 V 150 7030003640 S RESISTOR ERJ3GEYJ 473 V 47 7030003700 S RESISTOR ERJ3GEYJ 154 V 150 7030003500 S RESISTOR ERJ3GEYJ 332 V 3 3 7030003560 S RESISTOR ERJ3GEYJ 103 V 10 7030003460 S RESISTOR ERJ3GEYJ 152 V 1 5 7030003800 S RESISTOR ERJ3GEYJ 105 V 1 7030003760 S RESISTOR ERJ3GEYJ 474 V 470 7030003660 S RESISTOR ERJ3GEYJ 683 V 68 Wide only 7030003600 S RESISTOR ERJ3GEYJ 223 V 22 Wide 7030003640 S RESISTOR ERJ3GEYJ 473 V 47 7030003620 S RESISTOR ERJ3GEYJ 333 V 33 Narrow 7030003560 S RESISTOR E
18. X 4 7 kQ ERJ2GEJ 472 X 4 7 ERJ3GEYJ 471 470 ERJ3GEYJ 101 V 100 0 ERJ2GEJ 102 X 1 kQ ERJ3GEYJ 472 V 4 7 ERJ3GEYJ 102 V 1 ERJ3GEYJ 561 V 560 Q ERJ3GEYJ 222 V 2 2 ERJ3GEYJ 100 V 10 Q ERJ3GEYJ 681 680 ERJ3GEYJ 101 V 100 Q ERJ3GEYJ 103 V 10 ERJ3GEYJ 183 V 18 ERJ3GEYJ 101 V 100 Q ERJ3GEYJ 103 V 10 ERJ3GEYJ 473 V 47 ERJ3GEYJ 474 V 470 104 V 100 ERJ3GEYJ 104 V 100 ERJ3GEYJ 103 V 10 ERJ3GEYJ 184 V 180 104 V 100 Wide Narrow Narrow Wide 5 18686 mount MAIN UNIT MAIN UNIT ORDER ORDER TE omo 7030003680 S RESISTOR ERJ3GEYJ 104 V 100 7030003640 S RESISTOR ERJ3GEYJ 473 V 47 7030003400 S RESISTOR ERJ3GEYJ 471 470 7030003760 S RESISTOR ERJ3GEYJ 474 V 470 7030003280 S RESISTOR ERJ3GEYJ 470 V 47 Q 7030003760 S RESISTOR 474 V 470 7030003680 S RESISTOR 104 V 100 kQ 7030003760 S RESISTOR 474 V 470 7030003680 S RESISTOR ERJ3GEYJ 104 V 100 kQ 7030003320 S RESISTOR ERJ3GEYJ 101 V 100 7030003680 S RESISTOR ERJ3GEYJ 104 V 100 ko 7030003680 S RESISTOR ERJ3GEYJ 104 V 100 7030003680 S RESISTOR 104 V 100 kQ 7030003600 S RESISTOR ERJ3GEYJ 223 V 22 7030003680 S
19. 0051872 8930051310 S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC C1608 CH 1H 471J T A C1608 JB 1H 102K T A C1608 JB 1H 102K T A C1608 JB 1C 104KT N C1608 JB 1H 102K T A C1608 JB 1C 473K T A CONNECTOR HSJ1122 010010 CONNECTOR 0 S CONNECTOR AXN330C038P S CONNECTOR BM02B ASRS TF LCD SLED S LED LM 7045B LNJ310M6URA LNJ310M6URA MICROPHON KUC3523 040245 S SWITCH S SWITCH S SWITCH JPM1990 2013R JPM1990 2013R JPM1990 2013R SPEAKER KO36NA500 47 CABLE S JUMPER S JUMPER OPC 963 ERJ3GE JPW V ERJ3GE JPW V PCB 53868 LCD CONTACT SRCN 2251 SP N W S Surface mount SECTION 7 MECHANICAL PARTS AND DISASSEMBLY CHASSIS PARTS 5 ODER DESCRIPTION MAIN UNIT m ODER NO DESCRIPTION 8210016750 8210016740 8930050890 8010017990 8210016570 8930050870 8310047580 8930051350 8210016550 8610010780 8930050820 8930050790 8930050590 8930050840 8930050850 8930050880 8930042350 8930051300 8930051290 8830001340 8930050900 8930036751 8950005260 8830001250 8810009510 8810009560 8810000100 8930051330 8930050800 8950005240 8860001210 8930051750 8510012900 Screw abbreviations 2251 T front panel 2251 S front panel 2251 terminal holder 2251 chassis 2251 rear panel 2251 release button 2251 window plate 2251 jack rubber 2251 jack panel Knob N 276 2251 main seal 2251 10key 2251 6key 2251 minus terminal 2251 plus terminal 2251 spring hol
20. 10 using T1 T4 signals These diodes tune the centre frequency of an RF passband for wide bandwidth receiving and good image response rejection 4 1 3 1ST MIXER AND 1ST IF CIRCUITS The 1st mixer circuit converts the received signal into a fixed frequency of the 1st IF signal with a PLL output frequency By changing the PLL frequency only the desired frequency will pass through a crystal filter at the next stage of the 1st mixer e 2nd IF and demodulator circuits R87 8 filter SQLIN signal from the D A convertor IC10 23 AF signal DET R83 p X3 C121 Active detector Limiter amp H82 The signals from the RF circuit are mixed at the 1st mixer Q13 with a 1st LO signal coming from the VCO circuit to produce a 31 05 MHz 1st IF signal The 1st IF signal is applied to a pair of crystal filters F11 to suppress out of band signals The filtered 1st IF signal is applied to the IF amplifier Q14 then applied to the 2nd mixer circuit IC2 pin 16 4 1 4 2ND IF AND DEMODULATOR CIRCUITS The 2nd mixer circuit converts the 1st IF signal into a 2nd IF signal A double conversion superheterodyne system which converts receive signals twice improves the image rejection ratio and obtains stable receiver gain The 1st IF signal from the IF amplifier is applied to the 2nd mixer section of the FM IF IC IC2 pin 16 and is mixed with the 2nd LO signal to be converted into a 450
21. 20 SEG21 SEG22 COM1 COM2 COM3 COM4 COMPLETE VIEW gt R5 S5 5V CP1 LV check ponit CR 664 R49 C69 15 3 MHz R45 47 k 33 P 100 185 1k C63 1 I I 56P D7 C64 R175 R31 1SV288 4P C234 1 A 0 001 TX 0 97 V 4 RX 1 03 V 2SK1069 4 ae T ae 0 001 Q11 XP6501 AB 1 1 151 47 k 1 186 233 C301 47k 1 T 0 001 4 7 k C290 TX O V TX 5 03 V C50 777 15 P RX 3 24 V RX 0 05V 10 L11 L12 MC152 E558CN 100024 2 7 uH Q R29 6 C45 1k 25077 82 P 4 e MA77 D5 HVC350B AH AR D13 R264 Q HVC350B C38 150 k Narrow 44 C41 2 5 68 k Wide 0 001 249 47k C295 R208 C235 C229 R209 TX 139 V 0 001 JI 10k 0 1 d RI 0 001 100 k RX 2 47 V R84 32 Em N R85 arrow 1 1 5 k 2 2 k Wide 1 5 k TX O V TX O V RX 23V RX 4 58 V Fl2 SFPC450G Narrow 1 SFPC450E Wide A CDBCA450CX24 C111 C108 C116 82 P Narrow 120 P Wide FL 311 Narrow FL 312 Wide R253 R80 AN 1 Wide C303 9 3 0 001 560 Narrow k Narrow d d HE L 1 2 k Wide 2 k Wide 120 119 118 C114 C113 C112 Q14 01 1 0 01 0083 0 001 0 001 2SC4215 O d P 8 5 P Wide zu m NOIS DET DS1 LM 7045B C39 0 001 68k 2SC5085 Y Q5 2SC4215 O Q6 2SC4215 O 2SC5085 Y Q4 2SC4215 O 0 47 uH Narrow
22. 203 243 R242 R241 47 1M 1M 1M 1 0 V ng BATT EI CTCSS 4 5 V R201 GND A I N aq 680 k Narrow only C202 R212 2 0198 47 Wide POJE eN 194 195 196 0 01 68 k 2 2 YES R193 100 k 100 k 100 k 47 Narrow Q38 100 k C283 C173 100 k Wide 0 001 47 y ME ar eae C225 Q33 DTC144EU R165 C199 F E 0 0047 Narrow 100 k F3GS onl 1 0 0068 Wide eei u BDET COM4 COME COMPLETE VIEW gt AFOUT AFOUT DISCIN DISCIN VCC VCC VCC 015 VOLMIN 1C5 331V 2581132 R 729 V 7 07 V TA7368F 100 Q16 XP6501 AB 222 C150 C151 C152 10 47 0 047 DISCIN M ER Co 23 lt lt m lt XX wo O lt lt 0 ZZ q AFOUT NI LVIN 100 129 R145 0139 R121 C140 R123 0145 C146 C171 1 8k 15 1M 0 1 1k 0 1 3 3k 10 0 001 0 1 TX 0V RX 3 96 V VOLOUT VOLOUT AFOUT AFONOP lt 5V 8 DS2 ALNJ310M6URA R35 9 680 98 97 96 95 94 92 5 91 DTMF 90 89 CPU5 88 87 86 SEG22 85 SEG 84 SEG20 83 SEG19 82 SEG 8 81 SEGI7 80 6 79 SEGI5 78 SEGI4 77 SEG13 76 5 1 5 V Light ON DS3 0M6URA CO 10 t 9 55 5 S BS 209040053585525252229 K 5 gt ESSZSSESSIHmi tn Lut 2SC4116 GR
23. 21 REM I SO 10 22 __AFOUT VCC VCC VOLMI to Optional unit 9 28 DISCIN FT 723 V 8 __ SIGOUT J O Awe RTA R177 A 7 MOWN precoce IC3C R44 O O 25 BEEPOUT R266 C132 NJM2902V tie 10 k Narrow 22 ae C135 as 0 01 180 33 k Narrow 180 P SO 6 BUSY TT 15k 0 0056 i 18 k Wide 22 k Wide Q16 26 AFONP T Y E R169 z 4 6501 5 AUX TX 3 69 V 0217 4 10 k Narrow arrow r 1 RAS 27 MICMUTE wee 650 0802 04 0 01 12k Wide 22 150 ab T L S eae ngo D26 OO 28 VCC PIT c 470 Narrow NJM2902V I el SO 3 MICOUT 390 Wide 8 i 2713 inue E IC 2 _ MS R96 C286 BU4066BCFV R116 L TN E RUTA exeo C147 C154 R130 H137 0 01 01 10 100 100 u C129 145 0139 R121 0 Bk 15 1M 0 1 1k 04 lj DID VOLIN B VOLIN 24 6223 4 VOLOUT c 2 VOLOUT 316 VOLOUT VOLOUT 0 01 0 01 AFOUT m ____ __ AFOUT H AFOUT i AFOUT 3 N x 2 5 TX 0V 5 RX 4 99 V P 2 d 2 i R265 p 11 100 k T Q18 SPEAKER CPUS 2501132 R aM C302 T WADA F A poe VCC VCC _ NTCCM20124AG473JCT 5V m V CPU5 7750772202272222 P S IC10 LL L louem TCIN 4 n M62363FP 650C REN H VIN8 MC1 z VOUT8 NEN MIC MIC Q19 m VOUT
24. 2SC4215 O TE85R 1520000460 S TRANSISTOR 2581132 7100 1590001190 S TRANSISTOR XP6501 TX AB 1590002530 S TRANSISTOR UN911H 1520000460 S TRANSISTOR 2581132 7100 1590001190 S TRANSISTOR XP6501 TX AB 1590000720 S TRANSISTOR DTA144EUA 7106 1510000920 S TRANSISTOR 2541577 T107 1510000920 S TRANSISTOR 2541577 T107 1530002690 S TRANSISTOR 2SC4116 GR TE85R 1590000660 S TRANSISTOR DTC144TU 107 1590000430 S TRANSISTOR DTC144EUA 7106 1590000430 S TRANSISTOR DTC144EUA 7106 1560000810 S FET 2SK1069 4 TL 1530002690 S TRANSISTOR 2SC4116 GR TE85R 1530002690 S TRANSISTOR 2SC4116 GR TE85R 1590000720 S TRANSISTOR DTA144EUA T106 1590000430 S TRANSISTOR DTC144EUA 106 1790000620 S DIODE 1790000620 S DIODE 1790000620 S DIODE 1790000620 S DIODE 1750000710 S VARICAP 1790001260 S DIODE 1720000660 S VARICAP 1790000620 S DIODE 1720000370 S VARICAP 1720000370 S VARICAP 1720000370 S VARICAP 1720000370 S VARICAP 1750000710 S VARICAP 1790000620 S DIODE 1160000070 S DIODE 1790001670 S DIODE 1790000620 S DIODE 1730002260 S ZENER 1790001670 S DIODE 1790001670 S DIODE MA77 TX MA77 TX MA77 TX MA77 TX HVC350BTRF MA2S077 TX 1SV288 TPH2 MA77 TX HVU350TRF HVU350TRF HVU350TRF HVU350TRF HVC350BTRF MA77 TX DAN202K T146 RB706F 40T106 MA77 TX MA8030 H TX RB706F 40T106 RB706F 40T106 2010002430 S XTAL 2010002440 S XTAL 20200010
25. 3390 S RESISTOR ERJ3GEYJ 391 V 390 7030003440 S RESISTOR ERJ3GEYJ 102 V 1 7030003460 S RESISTOR ERJ3GEYJ 152 V 1 5 7030003510 S RESISTOR __ 392 V 3 9 7030003640 S RESISTOR ERJ3GEYJ 473 V 47 Narrow 7030005870 S RESISTOR RR0816R 104 D 100 7030003680 S RESISTOR ERJ3GEYJ 104 V 100 Wide 7510001280 S THERMISTOR NTCCM20124AG473J T 7030003400 S RESISTOR ERJ3GEYJ 471 V 470 0 Wide 7030003560 S RESISTOR ERJ3GEYJ 103 V 10 7030003480 S RESISTOR ERJ3GEYJ 222 2 2 Narrow 7030003440 S RESISTOR ERJ3GEYJ 102 V 1 7030003620 S RESISTOR ERJ3GEYJ 333 V 33 Narrow 7030003640 S RESISTOR ERJ3GEYJ 473 V 47 7030003630 S RESISTOR ERJ3GEYJ 393 V 39 Wide 7030003680 S RESISTOR ERJ3GEYJ 104 V 100 7030003450 S RESISTOR __ 122 V 1 2 7030003600 S RESISTOR ERJ3GEYJ 223 V 22 7030003780 S RESISTOR ERJ3GEYJ 684 V 680 7030003600 S RESISTOR ERJ3GEYJ 223 V 22 7030003610 S RESISTOR ERJ3GEYJ 273 V 27 7030003600 S RESISTOR ERJ3GEYJ 223 V 22 7030003800 S RESISTOR ERJ3GEYJ 105 V 1 7030003680 S RESISTOR ERJ3GEYJ 104 V 100 7030003800 S RESISTOR ERJ3GEYJ 105 V 1 7030003680 S RESISTOR ERJ3GEYJ 104 V 100 7030003640 S RESISTOR __ 473 47 7030003680 S RESISTOR ERJ3GEYJ 104 V 100 7030003720 S RESISTOR ERJ3GEYJ 224
26. 4 58 2432 100 k F3GT only H C SEG2 R262 RX 0 53 V ud a C102 121 8 Bees SEGI R88 1 8 k Narrow 15P 47 p D1 D10 D9 1 HD6473877H P85 SEG30 SEG7 33 k Narrow C121 1 Wide HVU350 HVU350 HVU350 0 P84 SEG29 L 39 k Wid 220 P CIS ZI P83 SEG28 65 NK 00 XL RS R187 n P82 SEG27 S2 100 k xV C122 0 001 560 Narrow P81 SEG2 R66 R64 n R87 220 P 47k Narrow ae de 2F Wie de ii lt nagan lt gk rl CLOUT 17 100 k Wide C120 C119 C118 C114 C113 C112 R75 C105 C104 R72 R70 129 C101 C100 L19 C96 C92 C88 C87 R59 C138 R252 17 C86 C85 C81 L16 C78 D8 02 C52 C76 029 C75 R251 C243 R163 936 P26 TXD P77 SEG24 2 2 k Narrow 110 470 k Wide 0 1 1 0 01 0 033 0 001 0 001 25 4215 120 0 01 0 001 10k 100 0 1uH 56 56 nH 180 P 1005 noy 0 001 0 01 470 0 001 100k 56nH 5P 180P 100 56nH 10P MA77 77 22P 8P MA8030H 0 1 330 k 0 000 22k DISCIN SED ide RX 2 43 V T ort 23 1 0 001 0 001 RB 06F40 beg I 11 22 oct P13 TMIG P71 SEG18 IT AFOUT 2 OPT2 2 PI2 TMOFH P70 SEG17 a w SP 5 25 5 P11 TMOFL P67 SEG16 tone R206 470 k Wide only IC12A NJM2904V R192 R199 C201 198 1 Narrow 0 1 18k 47k W
27. 5 93 gt 00017 3L 0 001 2 J AFOUT AFOUT AFOUT DISCIN DISCIN DISCIN VCC VCC VCC VCC T5 T5 T5 T5 R5 R5 R5 H R5 55 55 55 a 55 3 5V 5V 5V R5 R5 R5 16 SOK S5 S5 S5 40 15 __ 1 E j dz _____ LVIN LVIN LVIN Ws e 40 13 __ _ DBAL 19 CIRQ R5 R5 SO 12 GND O 20 CCS S5 55 FRQCON SO 11 OPT3 el 21 REM SO 10 22 __AFOUT VCC VCC ____ VOLMIN VOLMAX 5 3 31 V to Optional unit O 23 _DISCIN Q15 7 23 V 7 07 V TA7368F 106 C234 So 8 SIGOUT 2581132 R N 0 001 5 24 RXMUTE R177 TM v 7 MOWN CPUS IC3C vk Oo C125 C212 R98 R114 G 25 BEEPOUT j I 266 C132 NJM2902V 10 k Narrow 0 01 180k 33 k Narrow R223 TX 0 97V 4 6 BUSY R131 15k 0 0056 18 k Wide 22 k Wide 80 Q16 100 k RX 1 03 V O O 470 10 XP AB me 2SK1069 4 26 AFONOP IN p R169 ded T XP6501 PLST C46 5 AUX TX 3 69 V C217 C124 10 k Narrow j R151 So l umun T T L e F105 IC3B 47 k 6 T5 15 28 VCC NES ae NJM2902V F SO 3 MicouT lt 390 Wide s 2 PTTOUT R116 5 03 V R96 C286 l 47 0 0022 n 0150 C151 Al z j T 6001 2198 357V 100 100 3 150 1 PTTIN gH dj 10 47 004 5 R186 C233 C301 100 33 150 O O 147 154 R130 lt 2 ole 47k 0 001 1 144 V 3 59 V 3 37 V TX 4 62 V 1
28. 7 P 0 001 C298 gt 0 001 RX 0 67 V MIC acao ooa TA KA 7 RA 42 6 R208 C235 C229 R209 4 7 XP6501 AB IC11 01 T J 0 001 100k 849V N colo eof Cu Od io St Joo RX 0 53 V gx 30 Os SS 9019920 Q25 52 gt gt gt 44440 25900 909 9 2SC4116 GR RS TX 1 68 V Q37 VIN3 ROHA n i H RX 5 03 V DTA144EU VOUT3 0 0077 5 u SWITCH VOUT4 uupeaaaaoaaaa 1 2k diss d A MN 00 5 5 656 0 e q 1 TX 0V H69 R61 RX 4 76 V W7 00 0 01 680k 2 R68 100 2 RX 3 47 C106 A 47 C51 Fl2 56 P Narrow i 47 P e TO uH ces SFPC450G Narrow 47 P Wide I FPC450E Wide R2 x E E di c 8 x Y 80 T e U 153 R152 R154 C244 C236 ____________5 610 CDBCA450CX24 111 ree j 0 22 22 470k 470k 470k 0 01 0 01 P95 SEG38 3E819 E T SU o C107 0 47 uH Narrow Jj RX 0 01 V 4 VOL PWR P94 SEG37 EE VT 0 001 0 50 uH Wide R52 SWITCH P93 SEG36 SEG8 J 1 0 uH C116 FL1 31 05MHz C277 100 k P92 SEG35 SEGO 010 82 P Narrow FL 311 Narrow Q13 1 5 P Narrow XIN 7 69 SEG5 2504116 GR C53 C66 i R80 FL 312 Wide C109 C98 C97 C94 C89 2 P IWid C83 C80 C79 L22 L15 IC7 SEGA J 18P 18P Vide R253 100k 0 001 3SK239A 0 001 Wide TP 3P 5 50 nH 50 nH R164 RESET 9 67 SEG3 TX 0V 0 0
29. 8 CH 1H 0508 C1608 CH 1H C1608 CH 1H 101J T A C1608 JB 1H 102 C1608 CH 1H 010B T A C1608 JB 1H 102 C1608 CH 1H 181J T A C1608 0508 1608 1 103 C1608 JB 1H 102 C1608 JB 1H 102 C1608 JB 1H 102 C1608 CH 0508 C1608 CH 1H 101J T A C1608 JB 1H 102 C1608 CH 1H 010B T A C1608 JB 1H 102 C1608 CH 1H 181J T A C1608 CH 0508 C1608 CH 1H 0508 C1608 JB 1H 102 C1608 CH 1H 390J T A C1608 CH 1H 560J T A C1608 CH 1H 150J T A C1608 JB 1H 102 C1608 1E 103K T A C1608 CH 1H 470J T A C1608 CH 1H 560J T A C1608 JB 1H 102 C1608 JB 1E 103K T A C1608 JB 1H 102 C1608 CH 1H 090D T A C1608 CH 1H 3R5B T A C1608 JB 1E 103K T A C1608 JB 1H 102 C1608 JB 1H 102K T A C1608 JB 1C C1608 JB 1E 103K T A C1608 CH 1H 820J T A C1608 CH 1H 121J T A C1608 JB 1H 102K T A C1608 JB 1E 103K T A C2012 JF 1C 105Z T A C1608 JB 1C 104KT N C1608 CH 1H 221J T A C1608 CH 1H 221J T A C1608 JB 1H 102 C1608 JB 1E 103K T A C1608 JB 1H 222 C1608 JB 1H 272 C2012 JF 1C 105Z T A ECSTOJY156R C1608 JB 1E 103K T A C1608 JB 1H 562 C1608 JB 1C 104KT N C1608 CH 1H 221J T A C1608 CH 1H 181J T A C1608 JB 1H 562 C1608 JB 1C 273K T A C1608 JB 1C 333K T A C1608 JB 1H 102 C1608 JB 1C 104KT N C1608 JB 1C 104KT N C1608 JB 1H 102 S ELECTROL
30. 80 S CERAMIC 2020001490 S CERAMIC FL 311 31 05 MHz FL 312 31 05 MHz SFPC450G TC01 SFPC450E TC01 6050010880 S XTAL 6050010870 S XTAL CR 664 15 3 MHz CR 663 9 200 MHz 6070000210 S DISCRIMINATOR CDBCA450CX24 Narrow Wide Narrow Wide MAIN UNIT ORDER Lii NN 6200008580 6200008500 6200008280 6200008510 6200007730 6200009180 6200009180 6200009180 6200009180 6200004850 6200003710 6200001980 6200009150 6200008280 6200007750 6200007750 6200007750 6200007750 6200004770 6200005540 62000091 70 6200008280 6200003090 6200001980 6200003590 6200009150 6200009180 6200008490 6200008330 6200001980 6200004920 7030003670 7030003480 7030003480 7030003240 7030003320 7030003560 7030003310 7030003450 7030003500 7030003260 7030003520 7030003320 7030004050 7030003440 7030003630 7030003320 7030003660 7030003320 7030003660 7030003320 7030005040 7030005040 7030003400 7030003320 7030005120 7030003520 7030003440 7030003410 7030003480 7030003200 7030003420 7030003320 7030003560 7030003590 7030003320 7030003560 7030003640 7030003760 7030003680 7030003680 7030003560 7030003710 7030003680 S COIL S COIL S COIL S COIL S COIL S COIL S COIL S COIL S COIL S COIL S COIL S COIL S COIL S COIL S COIL S COIL S COIL S COIL S COIL S COIL S COIL S COIL S COIL S COIL S COIL S COIL S COIL S COIL S COIL S COIL S COIL S RESISTOR S RESISTOR S RESISTOR S RESISTO
31. A C1608 JB 1H 102K T A C1608 JB 1C 104KT N C1608 JB 1C 104KT N C1608 JB 1E 103 ECST1AY225R C1608 JB 1C 333K T A C1608 JB 1C 104KT N C1608 JB 1C 104KT N C1608 JB 1C 104KT N ECUE1E102KBQ C1608 JB 1H 822K T A C1608 JB 1C 393K T A C1608 JB 1C 104KT N C1608 JB 1E 103 C1608 JB 1E 103K T A C1608 JB 1H 472K T A C1608 JB 1H 682K T A C1608 JB 1C 104KT N C1608 JB 1H 821K T A C1608 JB 1H 102K T A C1608 JB 1C 223K T A C1608 JF 1C 104Z T A C1608 JF 1C 1042 C1608 JB 1H 102K T A C1608 JB 1H 102K T A C1608 JB 1C 104KT N C1608 JB 1E 103K T A C1608 JB 1H 102K T A C1608 JB 1E 103K T A C1608 JB 1E 103K T A C1608 JB 1E 103K T A C1608 JB 1E 103K T A C1608 JB 1E 103K T A C1608 JB 1H 102K T A C1608 JB 1H 102K T A C1608 CH 1H 020 C1608 CH 1H 1R5B T A C1608 CH 1H 200J T A C1608 CH 1H 470J T A C1608 JB 1H 102K T A C1608 JB 1H 102K T A C1608 JB 1H 102K T A C1608 CH 1H 470J T A C1608 JB 1H 222K T A C1608 CH 1H 200J T A C1608 JB 1H 102K T A C1608 CH 1H 470J T A C1608 CH 1H 150J T A C1608 JB 1C 104KT N TEMSVB2 0J 336M8L C1608 JB 1H 102 C1608 JB 1H 102 C1608 JB 1H 102 ECST1CY475R Narrow Wide Wide Narrow MAIN UNIT 4030011340 4030006860 4030006860 4030011600 4030006860 4030008920 6450001680 6450001690 6510018430 6510021900 5030001800 5010000160 5010000160 7700002160 2230000900 2230000900 2230000900 2510001060 8900009640 7030003860 7030003860 091
32. Cheng Teh Road Taipei Taiwan R O C Phone 02 2559 1899 02 2559 1874 Icom Europe GmbH Communication Equipment Himmelgeister Str 100 D 40225 D sseldorf Germany Phone 0211 346047 Fax 0211 333639 URL http www icomeurope com Icom Spain S L Crta de Gracia a Manresa Km 14 750 08190 Sant Cugat del Valles Barcelona SPAIN Phone 93 590 26 70 Fax 93 589 04 46 URL http www icomspain com Icom UK Ltd Unit 9 Sea St Herne Bay Kent CT6 8LD U K Phone 01227 741741 Fax 01227 741742 URL http www icomuk co uk Icom France S a Zac de la Plaine Rue Brindejonc des Moulinais BP 5804 31505 Toulouse Cedex France Phone 561 36 03 03 561 36 03 00 URL http www icom france com Count on us Icom Inc S 13605II CD 6 9 16 Kamihigashi Hirano ku Osaka 547 0002 Japan 1999 Icom Inc
33. O SERVICE MANUAL VHF FM TRANSCEIVERS IC F3GT IC F3GS Icom Inc INTRODUCTION This service manual describes the latest service information for the IC F3GT and IC F3GS at the time of publication To upgrade quality all electrical or mechanical parts and internal circuits are subject to change without notice or oblig ation DANGER NEVER connect the transceiver to an AC outlet or to a DC power supply that uses more than 16 V Such a connection could cause a fire hazard and or electric shock 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 100mW 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 lt SAMPLE ORDER gt IC F3GT IC F3GS 0910051872 PCB B 5386B IC F3GT MAIN UNIT 1 pieces 8810009510 Screw BT M2x 6 ZK IC F3GS Chassis 10 pieces Addresses are provided on the inside back cover for your convenience REPAIR NOTES Make sure a problem is internal before disassembling the transceiver DO NOT open the transceiver until the transceiver is disconnected from its power source DO NOT force any of the
34. R S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR S RESISTOR 0 30 1 4 6TL 32N 0 30 1 3 6TL 28N 0 30 1 7 7TL 50N 0 30 0 9 ATR 10 5N LQN21A 39NJ04 ELJRE R10J F3 ELJRE R10J F3 ELJRE R10J F3 ELJRE R10J F3 MC152 E558CN 100024 NL 25201 8T 2R7J NL 25201 8T 1ROJ ELJRE 82NJ F3 0 30 1 7 7TL 50N LQN21A 56NJ04 LQN21A 56NJ04 LQN21A 56NJ04 LQN21A 56NJ04 ELJNC R56J F ELJNC R47K F ELJRE 47NJ F2 0 30 1 7 7TL 50N NL 322522T 2R7J 3 NL 252018T 1R0J EXCCL3225U1 ELJRE 82NJ F3 ELJRE R10J F3 0 30 0 9 3TR 7 5N 0 45 1 4 ATL 15N NL 252018T 1R0J MLF1608A 2R2K T ERJ3GEYJ 823 V 82 ERJ3GEYJ 222 V 2 2 ERJ3GEYJ 222 V 2 2 ERJ3GEYJ 220 V 22 Q ERJ3GEYJ 101 V 100 Q ERJ3GEYJ 103 V 10 ERJ3GEYJ 820 V 82 Q ERJ3GEYJ 122 V 1 2 ERJ3GEYJ 332 V 3 3 ERJ3GEYJ 330 V 33 0 ERJ3GEYJ 472 V 4 7 ERJ3GEYJ 101 V 100 Q ERJ3GEYJ 180 V 1 ERJ3GEYJ 102 V 1 ERJ3GEYJ 393 39 ERJ3GEYJ 101 V 100 Q ERJ3GEYJ 683 V 68 ERJ3GEYJ 101 V 100 Q ERJ3GEYJ 683 V 68 ERJ3GEYJ 101 V 100 Q ERJ2GEJ 472
35. RAMIC S TANTALUM S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC C1608 JB 1C 104KT N ECSTOJY106R C1608 JB 1H 471K T A C1608 JB 1E 103K T A C1608 JB 1E 103K T A C1608 JB 1E 103K T A C1608 JB 1H 102K T A C1608 JB 1H 102K T A C1608 JB 1H 102K T A C1608 JB 1H 102K T A C1608 CH 1H 470J T A C1608 JB 1H 102 C1608 JB 1H 102K T A C1608 JB 1C 104KT N S ELECTROLYTIC ECEV1CA470SP S ELECTROLYTIC ECEVOJA220SR S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S TANTALUM S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S TANTALUM S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S CERAMIC S TANTALUM S CERAMIC S CERAMIC S CERAMIC S TANTALUM C1608 JB 1E 103K T A C1608 CH 1H 080D T A C1608 CH 1H 150J T A C1608 CH 1H 560J T A C1608 JB 1H 471K T A C1608 JB 1C 104KT N ECST1AY225R C1608 JB 1C 104KT N C1608 JB 1C 333K T A C1608 JB 1C 104KT N C1608 JB 1E 103K T A C1608 JB 1H 102K T
36. RJ3GEYJ 103 V 10 7030003690 S RESISTOR ERJ3GEYJ 124 V 120 7030003680 S RESISTOR ERJ3GEYJ 104 V 100 7030003440 S RESISTOR ERJ3GEYJ 102 V 1 7030003510 S RESISTOR ERJ3GEYJ 392 V 3 9 7030003460 S RESISTOR ERJ3GEYJ 152 V 1 5 7030003680 S RESISTOR ERJ3GEYJ 104 V 100 7030003660 S RESISTOR ERJ3GEYJ 683 V 68 7030003660 S RESISTOR ERJ3GEYJ 683 V 68 7030003440 S RESISTOR ERJ3GEYJ 102 V 1 7030003400 S RESISTOR ERJ3GEYJ 471 V 470 Q 7030003490 S RESISTOR ERJ3GEYJ 272 V 2 7 7030005870 S RESISTOR RR0816R 104 D 100 7030003500 S RESISTOR ERJ3GEYJ 332 V 3 3 7030005870 S RESISTOR RR0816R 104 D 100 7030003610 S RESISTOR ERJ3GEYJ 273 V 27 7030003690 S RESISTOR ERJ3GEYJ 124 V 7030003560 S RESISTOR ERJ3GEYJ 103 V 10 7030003690 S RESISTOR ERJ3GEYJ 124 V 7030003260 S RESISTOR ERJ3GEYJ 330 V 33 0 7030003730 S RESISTOR ERJ3GEYJ 274 V 7030003200 S RESISTOR ERJ3GEYJ 100 V 10 0 7030003740 S RESISTOR ERJ3GEYJ 334 V 7030003680 S RESISTOR ERJ3GEYJ 104 V 100 7030003560 S RESISTOR 103 V 7030003400 S RESISTOR ERJ3GEYJ 471 V 470 Q 7030003680 S RESISTOR ERJ3GEYJ 104 V 7030003400 S RESISTOR ERJ3GEYJ 471 V 470 Q 7030003610 S RESISTOR ERJ3GEYJ 273 V 7030003480 S RESISTOR ERJ3GEYJ 222 V 2 2 7030003680 S RESISTOR ERJ3GEYJ 104 V 7030003560 S RESISTOR ERJ3GEYJ 103 V 10 7410000950 S ARRAY EXB V8V 102J
37. TX 1 69 V aM R II AW ee ay wl ee 5 TX OV 7 TX 5 03 V n 2 C37 N R27 C39 0 001 68 k 0 001 68k 0 001 39k 0 001 0 001 RX 3 96 V RX 0 05V 0 470 0 001 R255 C19 5 C223 C224 VOLOUT VOLOUT VOLOUT 56 0 001 10 5 nH 0 01 001 pu AFOUT Q8 A C288 L11 47k 4 7k 0 1 uH C289 TXOV y MC152 EB58CN 100024 4 C24 C281 C205 C8 12 L1 w5 LN lt TX 0 7 V 0 001 0 001 ea ali 0 001 0 001 28nH 32nH VY U UO C36 C22 L28 0 0 I 0 0 FACE R29 06 45 0 001 27P 82 nH L32 1 2 1 BDET 100 k 1k 25077 82 gt 134 C27 D3 C25 is 15nH 7 5nH C4 C2 1 2 2 uH 18P 77 6 P 9P 6P pL T C302 D28 lt Y 100 6205 ae 2SB1132 R q MAT 7 I a R16 25 5085 Q1 LI 05 4 7 k 2 75 V R11 Q2 28K2974 CPU HVC350B B K K 22 P C28 K D4 TX 2 06 V 033 ov e m v CPU5 _____ ___ cm TU i T Al D13 K 0 001 77 lt C13 RX 0 53 V RB706 F40 TA HVC350B C38 Q7 Q6 Q5 1k L an T T 1616 0 41 150 k Narrow C42 04 On 25 25 5085 Y Q4 1 0 001 0 001 2SC4215 0 201 5 0 TX 0 8 1 R1 M62363FP 650C 68 k Wide 30 P 5v 25 4215 O RX 0 V j ITI 82k R249 C251 oH Nasa DEV N 47 k io RIO 0288 C17 C18 0 001 MC1 1 5 Light ON 0 001 82 4
38. UT 105 UT 109 UT 110 UT 111 and UT 108 optional unit J5 4 Replace the option cover to the chassis hole Option cover Option unit SPONGE Jo Parts name 1556 sponge Order 8930013545 SECTION 4 CIRCUIT DESCRIPTION 4 1 RECEIVER CIRCUITS 4 1 1 SWITCHING CIRCUIT Received signals are passed through the low pass filter L1 L2 01 65 C8 The filtered signals are applied to the 2 4 type antenna switching circuit D2 D8 The antenna switching circuit functions as a low pass filter while receiving However its impedance becomes very high while D2 and D8 are turned ON Thus transmit signals are blocked from entering the receiver circuits The antenna switching circuit employs a 4 type diode switching system The passed signals are then applied to the RF amplifier cir cuit 4 1 2 RF CIRCUIT The HF circuit amplifies signals within the range of frequen cy coverage and filters out of band signals The signals from the antenna switching circuit are amplified at the RF amplifier Q12 after passing through the tunable bandpass filter L16 L17 D9 D10 C78 C80 C86 C93 C277 The amplified signals are applied to the 1st mixer cir cuit Q13 after out of band signals are suppressed at the tunable bandpass filter D11 D12 L18 L19 C91 C92 C94 C96 C98 Varactor diodes are employed at the bandpass filters that track the filters and are controlled by the CPU IC8 via the expander IC IC
39. V 7030003320 S RESISTOR ERJ3GEYJ 101 100 0 7030003640 S RESISTOR ERJ3GEYJ 473 V 47 120 kQ 120 KQ 270 330 10 100 27 kQ 100 ZEN ZEN Z 7030003320 S RESISTOR ERJ3GEYJ 101 V 100 Q 7030003560 S RESISTOR 103 10 7030003520 S RESISTOR ERJ3GEYJ 472 4 7 7030003710 S RESISTOR ERJ3GEYJ 184 180 7030003680 S RESISTOR ERJ3GEYJ 104 100 7030003650 S RESISTOR ERJ3GEYJ 563 V 56 7030003520 S RESISTOR ERJ3GEYJ 472 V 4 7 kQ 7030003600 S RESISTOR 223 V 22 7030003320 S RESISTOR ERJ3GEYJ 101 V 100 Q 7410000950 S ARRAY EXB V8V 102JV 7210003060 VARIABLE TP76NOON 15F 10KA 2251 7030003600 S RESISTOR 223 V 22 7030003600 S RESISTOR ERJ3GEYJ 223 V 22 kQ 7030003780 S RESISTOR ERJ3GEYJ 684 V 680 7030003800 S RESISTOR ERJS3GEYJ 105 V 1 MQ 7410000950 S ARRAY EXB V8V 102JV 7030003570 S RESISTOR ERJ3GEYJ 123 12 7410000950 S ARRAY EXB V8V 102JV 7030003570 S RESISTOR ERJ3GEYJ 123 V 12 7410000950 S ARRAY EXB V8V 102JV 7030003680 S RESISTOR ERJ3GEYJ 104 V 100 7030003440 S RESISTOR ERJ3GEYJ 102 V 1 7030003400 S RESISTOR ERJ3GEYJ 471 470 7030003440 S RESISTOR ERJ3GEYJ 102 1 7030003710 S
40. YTIC ECEV1CA100SR S CERAMIC S CERAMIC S CERAMIC S CERAMIC S TANTALUM S CERAMIC S CERAMIC C1608 JB 1H 102K T A C1608 JF 1C 104Z T A C1608 JB 1E 103K T A C1608 JB 1C 104KT N ECSTOJY106R C1608 CH 1H 470J T A C1608 JB 1C 473K T A S ELECTROLYTIC EEVFCOJ101P S TANTALUM ECSTOJY106R S ELECTROLYTIC ECEV1CA100SR Wide Narrow Narrow Wide Narrow Wide F3GS F3GT 5 18686 mount MAIN UNIT ORDER ORDER RE 4030011600 4550006200 4030006850 4030006900 4030006900 4030006900 4030006860 4030006860 4030006860 4030006860 4030007090 4030006860 4030006860 4030011600 4510004640 4510005430 4030006900 4030006990 4030007030 4030007100 4030006850 4030011600 4550006170 4030011600 4030008900 4030011600 4030006900 4030006860 4030006860 4030011600 4030011600 4030006900 4550006170 4030008900 4030011600 4030011600 4030011600 4030013850 4030009630 4030008910 4030011600 4030006900 4030006900 4030006880 4030009880 4030011600 4030009490 4030006860 4030008880 4030008630 4030008630 4030006860 4030006860 4030011600 4030006900 4030006860 4030006900 4030006900 4030006900 4030006900 4030006900 4030006860 4030006860 4030009520 4030009540 4030009990 4030007090 4030006860 4030006860 4030006860 4030007090 4030006870 4030009990 4030006860 4030007090 4030007030 4030011600 4550006110 4030006860 4030006860 4030006860 4550006540 S CE
41. der 1922 mic sheet 2251 mic sponge 2251 opt sheet 1903 hex nut 2251 window sheet Spring Ant connector 102 Ant connector 101 Screw BT M2 4 NI ZU Screw BT M2 x 6 ZK Screw M2 x 4 ZK 2251 contact rubber 2251 jack cap 2251 contact spring 2251 ANT rug Sponge 2251 shield plate F3GT F3GS F3GT 2325 BT Self tapping head FH Flat head BiH Bind head SUS Stainless Nickel ZK Black 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 8 7 4 1 1 1 1 1 1 2510001060 8930051310 8510011111 8510011101 8930050810 8210016580 8410002230 ACCESSORIES Speaker KO36NA500 47 LCD contact SRCN 2251 SP N W 1922 VCO case 1 1922 VCO cover 1 2251 LCD holder 2251 reflector 2078 PA heatsink REF NO ODER NO DESCRIPTION QTY 3310002330 3310002320 0800005400 8930042040 8930051290 Antenna FA SC25V Antenna FA SC55V Battery BC 209 1922 Belt clip 2251 OPT sheet UNIT abbreviation CHASSIS 5 MAIN UNIT 7 2 MP33 26 MP39 C MP32 C a P C SZ gt 2 9 6 MP31 C gt NG MP15 E lt MP25 C MP2i C _ NE M E MP31 C MP14 C 23 C SECTION 8 SEMI CONDUCTOR INFORMATION TRANSISTOR AND FET S 25 1577 0 25 4116 GR 25 4215 25 5085 25 1069 4 Symbol
42. e same voltage as the 5V line for the optional HM 46L 71 or HS 51 through resistor R132 the oscillated signal drifts its phase changes from that of the reference frequency causing a lock voltage change to compensate for the drift in the oscillated frequency A portion of the VCO signal is amplified at the buffer ampli fier Q4 and is then applied to the receive 1st mixer Q13 or transmit buffer amplifier circuit Q3 via the T R switching diode D3 D4 PLL circuit VCO circuit DEV signal from the D A convertor IC10 pin 22 when transmitting to transmitter circuit mixer circuit 151 D4 TA Programmable Prescaler TA counter 3 4 PLST 4 15 lt SO el SUE X1 15 3 MHz 8 30 6 MHz signal to the FM IF IC 17 4 5 PORT ALLOCATIONS 4 5 1 CPU IC8 CPU IC8 continued Port Port gi name Deomm Input port for battely voltage detection Input port for unlock signal 9 RESET Input port for RESET signal 63 High PLL is unlocked Low PLL is locked CSIFT OTI oscillator for the Output port for 9 MTONE Beep audio while receiving clock signal to the PLL IC 2 5 tone signals while transmitting EE 91 DTMF Outputs DTMF tone signal while trans e Outputs strobe signals to the mitting expander IC10 pin 6
43. enerator to the through the attenuator MIC jack and set as 1 0 kHz 150 mVrms Set the FM deviation meter as HPF OFF LPF 20 kHz De emphasis OFF Detector P P 2 Transmitting DTCS WAVE Operating frequency 160 000 MHz Connect FM deviation meter Set to flat wave FORM e High Low switch Low with an oscilloscope to the form DTCS BAL No audio applied to the MIC jack antenna connector through an DTCS code 007 attenuator Transmitting SOFTWARE ADJUSTMENT continued Select an operation using 1 4 keys then set specified value using lt gt keys on the connected computer keyboard MEASUREMENT ADJUSTMENT ADJUSTMENT CONDITION UNIT LOCATION Operating frequency 146 000 MHz Connect a SINAD meter with an Minimum distortion Connect a standard signal generator panel 80 load the SP jack BPF T1 the antenna connector and set as BPF T4 Frequency 146 000 MHz Level 3 2 97 dBm Modulation 1 kHz Deviation 38 5 kHz W type 1 75 kHz N type Receiving CONVENIENT The BPF T1 BPF T4 can be adjusted automatically D 1 Set the cursol to BPF ALL on the adjustment program and then push ENTER key D 2 The connected PC tunes BPF 1 T4 to peak levels or 2 1 Set the cursol to one of BPF T1 T2 T3 or T4 as desired 2 2 Push ENTER key to start tuning 2 3 Repeat 2 1 2 to perform additional BPF tu
44. he Start menu then CS F3G ADJ s window is appeared 4 Click Connect on the CS F3G s window then appears IC F3GT GS s up to date condition 5 Set or modify adjustment data as desired IBM is a registered trademark of International Bussiness Machines Corporation in the U S A and other countries Microsoft and Windows are registered trademarks of Microsoft Corporation in the U S A and other countries Screen shots produced with permission from Microsoft Corporation All other products or brands are registered trademarks or trademarks of their respective holders ADJUSTMENT SOFTWARE S SCREEN DISPLAY EXAMPLE w CS F3G ADJ Rev 1 0 File Option a COM1 OPEN e Connect Reload F5 Disp para L TCXO A D VIN 189 TEMPS 186 98 SD 0 REMOT 14 lt DTCS BL 140 Dev 108 j SQL Lev 120 01 J D ND N gt 5 38 RX Freq 160 500 TX Freq lt RF Power 6 Power Hi 150 4 4 P LO 50 7 DTCS BAL 140 4 4 4 4 MOD 117 9 SQL 120 4 4 4 BPF ALL Enter to Start x T1 70 Enter to Sweep T2 104 4 4 4 Enter to Sweep T3 112 Enter to Sweep x T4 88
45. ide IC12B eee 2 2 AAA SIDA0 sie niii ag inim NJM2904V P50 WKPO SEG1 P51 WKP1 SEG2 P52 WKP2 SEG3 P53 WKP3 SEG4 P65 SEG14 W P66 SEG15 PA3 COM4 2 1 2 PAO COM1 C167 0168 9 47P 0 001 0 001 2SC4116 GR R203 47k R200 R201 j j C GND Narrow 680 k Narrow only 1 a 68 E 2 uz 3 NICE R267 1 er ga a R194 R195 R196 LM 7045B 1 0 01 1 lt jae R193 2 100k 100 k 100 k C283 C173 100 k Wide lt Q38 100 k L oe 601 0239 Caen Q33 DTC144EU R165 C199 R246 R245 C296 C297 0 0065 hide DTC144EU 100 k F3GS only 1 100k 100k 0 001 0 001 DUSE gt Sil BDET LEFT SIDE na CENTER RIGHT SIDE Icom Inc 6 9 16 Kamihigashi Hirano ku Osaka 547 0002 Japan Phone 06 6793 5302 Fax 06 6793 0013 Icom America Inc Corporate Headquarters 2380 116th Avenue N E Bellevue WA 98004 U S A Phone 425 454 8155 425 454 1509 URL http Awww icomamerica com lt Customer Service gt Phone 425 454 7619 Icom Canada 3071 Road Unit 9 Richmond B C V6X 2 4 Canada Phone 604 273 7400 Fax 604 273 1900 URL http Awww icomcanada com Icom Australia Pty Ltd A C N 006 092 575 290 294 Albert Street Brunswick Victoria 3056 Australia Phone 03 9387 0666 Fax 03 9387 0022 URL http www icom net au Asia Icom Inc 6F No 68 Sec 1
46. kHz 2nd IF sig nal The FM IF IC contains the 2nd mixer limiter amplifier quad rature detector and active filter circuits A 2nd LO signal 30 6 MHz is produced at the PLL circuit by doubling it s ref erence frequency The 2nd IF signal from the 2nd mixer IC2 pin 3 passes through a ceramic filter FI2 to remove unwanted hetero dyned frequencies It is then amplified at the limiter amplifi er IC2 5 and applied to the quadrature detector 2 pins 10 11 to demodulate the 2nd IF signal into AF signals 2nd IF filter 450 kHz PLL IC i comp X1 15 3 MHz IC2 TA31136F he va 1st IF from the IF amplifier Q14 NOIS signal to the CPU pin 19 SD signal to the CPU pin 98 4 1 5 AF CIRCUIT signals from the FM IF IC IC2 pin 9 are applied to the mute switch IC4 pin 1 via the AF filter circuit IC3b pins 6 7 The output signals from pin 11 are applied to the AF power amplifier IC5 pin 4 after being passed through the VOL control R143 The applied AF signals are amplified at the AF power ampli fier circuit IC5 pin 4 to obtain the specified audio level The amplified AF signals output from pin 10 are applied to the internal speaker SP1 as the SP signal via the SP jack when no plug is connected to the jack 4 1 6 SQUELCH CIRCUIT A squelch circuit cuts out AF signals when no HF signals are received By detecting noise components in the AF signals the squelch swi
47. mute switch IC4 pins 9 8 4 2 2 MODULATION CIRCUIT The modulation circuit modulates the VCO oscillating signal RF signal using the microphone audio signal The audio signals change the reactance of a diode D6 to modulate an oscillated signal at the VCO circuit Q7 Q8 The oscillated signal is amplified at the buffer amplifiers Q4 Q6 then applied to the T R switching circuit D3 D4 4 2 3 DRIVE POWER AMPLIFIER CIRCUITS The signal from the VCO circuit passes through the T R switching circuit D3 and is amplified at the buffer Q3 drive Q2 and power amplifier Q1 to obtain 5 W of RF power at 7 2 V DC The amplified signal passes through the antenna switching circuit D1 and low pass filter and is then applied to the antenna connector The bias current of the drive Q2 and the power amplifier Q1 is controlled by the APC circuit 4 2 5 APC CIRCUIT The APC circuit IC3a Q37 protects the drive and the power amplifiers from excessive current drive and selects HIGH or LOW output power The signal output from the power detector circuit D32 D33 is applied to the differential amplifier IC3a pin 2 and the T4 signal from the expander 10 11 controlled by the CPU IC8 is applied to the other input for reference L4 C278 C287 to antenna Power detector circuit D32 D33 When the driving current is increased input voltage of the 4 4 POWER SUPPLY CIRCUITS differential amplifier
48. ning Operating frequency 146 000 MHz Connect a SINAD meter with an 12 dB SINAD Connect a standard signal generator to panel 8Q load to the SP jack the antenna connector and set as Frequency 146 000 MHz Level OFF Modulation 1 kHz Deviation 3 5 kHz W type 1 75 kHz N type Receiving Receiving At the point where the audio signals just appears The output level of the standard signal generator SSG is indicated as the SSG s open circuit SECTION 6 PARTS LIST MAIN UNIT ORDER B RE 1130007610 1110003490 1110003780 1130008090 1110001810 1180001740 1130009680 1140003750 1190000350 1130009110 1110003800 5 5 5 5 5 5 5 5 5 5 5 uPD3140GS E1 058 TA31136FN D EB NJM2902V TE1 BU4066BCFV E1 TA7368F TP1 TK11250BMCL 58 2432 HD6473877H Z TAT M62363FP 650C S 80942ANMP DD6 T2 NJM2904V TE1 1560001050 S FET 25 2974 1560001020 S FET 25 2973 MTS101P 1530003230 S TRANSISTOR 25 5085 TE85R 1530002600 S TRANSISTOR 25 4215 TE85R 1530002600 S TRANSISTOR 2SC4215 O TE85R 1530002600 S TRANSISTOR 2SC4215 O TE85R 1530003230 S TRANSISTOR 25 5085 TE85R 1530003230 S TRANSISTOR 25 5085 TE85R 1530002690 S TRANSISTOR 2SC4116 GR TE85R 1590001190 S TRANSISTOR XP6501 TX AB 1580000730 S FET 35 293 TE85L 1580000720 S FET 3SK239AXRTL 1530002600 S TRANSISTOR
49. rminated type Standard signal generator SSG Frequency counter Oscilloscope FM deviation meter Frequency range DC 500 MHz Measuring range 0 to 5 kHz Digital multimeter Input impedance 10 MO V DC or better AC millivoltmeter Measuring range SYSTEM REQUIREMENTS IBM PC compatible computer with an RS 232C serial port 38400 bps or faster Microsoft Windows 95 or Windows 98 Intel i486DX processor or faster Pentium 100 MHz or faster recommended At least 16 MB RAM and 10 MB of hard disk space 640x480 pixel display 800x600 pixel display recommend ed ADJUSTMENT SOFTWARE INSTALLATION NOTE Before using the program make a backup copy of the original disk After making a backup copy keep the orig inal disk in a safe place D Boot up Windows Quit all applications when Windows is running 2 Insert the backup disk1 into the appropriate floppy drive 3 Select Run from the Start menu 4 Type the setup program name using the full path name then push the Enter key setup 5 Follow the prompts 6 Program group CS F3G ADJ appears in the Programs folder of the Start menu Measuring range 0 01 20 V 10 mV 10 V STARTING SOFTWARE ADJUSTMENT D Connect IC F3GT GS and PC with the optional OPC 478 and the JIG cable 2 Boot up Windows and turn the transceiver power ON 3 Click the program group CS F3G in the Programs folder of t
50. tches the AF mute switch A portion of the AF signals from the FM IF IC IC2 pin 9 are applied to the active filter section IC2 pin 8 where noise components are amplified and detected with an internal noise detector The active filter section amplifies noise components The fil tered signals are rectified at the noise detector section and converted into NOIS pulse type signals at the noise com parator section The NOIS signal is applied to the CPU IC8 pin 19 The CPU detects the receiving signal strength from the number of the pulses and outputs an RMUT signal from 49 This signal controls the mute switch IC4 to cut the AF signal line 4 2 TRANSMITTER CIRCUITS 4 2 1 MICROPHONE AMPLIFIER CIRCUIT The microphone amplifier circuit amplifies audio signals with 6 dB octave pre emphasis characteristics from the micro phone to a level needed for the modulation circuit circuit VCC RF signal from PLL Q2 Driver amp 55 T 1 control circuit The AF signals from the microphone are applied to the microphone amplifier circuit IC3c 10 The amplified signals are passed through the low pass filter circuit IC3d pins 13 14 via the mute switch IC4 pins 4 3 The filtered AF signals are applied to the modulator circuit after being passed through the
51. utputs R5 regulator control signal Low While receiving Outputs T5 regulator control signal Low While transmitting Outputs APC circuit control signal High While transmitting Outputs control signal for the regulator circuit of AF power amplifier High When squelch is open etc LIGT Outputs LCD backlight control signal High Lights ON Outputs EEPROM IC7 pin 6 clock Peek signal I O port for data signals from to EEP ESDA ROM IC7 5 SECTION 5 ADJUSTMENT PROCEDURES 5 1 PREPARATION When you adjust the contents page 5 5 or 5 6 SOFTWARE ADJUSTMENT the optional CS F3G ADJ ADJUSTMENT SOFTWARE Rev 1 0 or later OPC 478 CLONING CABLE and a JIG CABLE see illustration at page 5 2 are required REQUIRED TEST EQUIPMENT EQUIPMENT GRADE AND RANGE DC power supply Output voltage 7 2 V DC Current capacity 5 Aor more Measuring range 1 10 Frequency range EQUIPMENT GRADE AND RANGE Audio generator Frequency range 300 3000 Hz Output level 1 500 mV Attenuator Power attenuation 40 or 50 dB Capacity 10 W or more Frequency range 120 500 MHz Output level 0 1 HV 32 mV 127 to 17 dBm DC voltmeter Input impedance 50 DC or better Frequency range 6 20 MHz 120 500 MHz Impedance O SWR Less than 1 2 1 Frequency range 0 1 500 MHz Frequency accuracy 1 ppm or better Sensitivity 100 mV or better RF power meter te
52. variable components Turn them slowly and smoothly DO NOT short any circuits or electronic parts An insulated turning tool MUST be used for all adjustments DO NOT keep power ON for a long time when the transceiver is defective DO NOT transmit power into a signal generator or a sweep generator ALWAYS connect a 40 dB to 50 dB attenuator between the transceiver and a deviation meter or spectrum analyzer when using such test equipment READ the instructions of test equipment thoroughly before connecting equipment to the transceiver 03 E SECTION SECTION SECTION SECTION SECTION SECTION SECTION SECTION SECTION SECTION SECTION 3 1 3 2 4 1 4 2 4 3 4 4 4 5 9 1 5 2 5 3 11 TABLE OF CONTENTS SPECIFICATIONS NSIDE VIEWS DISASSEMBLY AND OPTION INSTRUCTIONS 1 T c N SECTION 1 SPECIFICATIONS GENERAL Frequency coverage Type of emission Number of channels Power supply requirement Current drain approx Frequency stability Usable temperature range Dimensions projections not included Weight with ant BP 209 TRANSMITTER RF output power at 7 2 V DC with supplied battery pack e Modulation system Maximum frequency deviation Spurious emissions Adjacent channel power Transmitter audio distortion Limitting charact of modulator Ext microphone connector RECEIVER Receive system

F3GT/F3GS Service Manual

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