Icom IC-F3GS User Manual Download

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SERVICE

MANUAL

1-1-32, Kamiminami, Hirano-ku, Osaka, 547-0003, Japan

S-13713IZ-C1V-

VHF FM TRANSCEIVERS

Summary of Contents for IC-F3GS

Page 1: ...SERVICE MANUAL VHF FM TRANSCEIVERS ...

Page 2: ... F3GT MAIN UNIT 1 pieces 8810009510 Screw BT M2 x 4 NI ZU IC F3GS Chassis 10 pieces Addresses are provided on the inside back cover for your convenience 1 Make sure a problem is internal before disassembling the transceiver 2 DO NOT open the transceiver until the transceiver is disconnected from its power source 3 DO NOT force any of the variable components Turn them slowly and smoothly 4 DO NOT s...

Page 3: ...CEDURES 5 1 PREPARATION 5 1 5 2 PLL ADJUSTMENT 5 3 5 3 TRIMMER ADJUSTMENT 5 4 5 4 TRANSMITTER ADJUSTMENT 5 6 5 5 RECEIVER ADJUSTMENT 5 6 SECTION 6 PARTS LIST SECTION 7 MECHANICAL PARTS AND DISASSEMBLY SECTION 8 SEMI CONDUCTOR INFORMATION SECTION 9 BOARD LAYOUTS 9 1 GENERAL AND EIA TIA VERSIONS EXCEPT W N TYPE 9 1 9 2 ETS CEPT VERSION 9 3 9 3 W N TYPE 9 5 SECTION 10 BC 137 OPTIONAL DESKTOP CHARGER ...

Page 4: ...sion 32 ch 16 channels 2 banks 2 BANK version 16 ch 16 channel version 7 2 V DC negative ground supplied battery pack 1 6 A 700 mA 250 mA 70 mA 2000 Hz W M type 1 5 kHz N type 0 0005 25 C to 55 C 30 C to 60 C 54 W 132 H 35 D mm 21 8 W 57 32 H 13 8 D inch 370 g 13 1 oz High 5 W Low 1 W Variable reactance frequency modulation 5 0 kHz W type 4 0 kHz M type 1 2 5 kHz N type 0 25 µW 1 GHz 1 00 µW 1 GHz...

Page 5: ...902V Q37 DTA144EU FM IF IC IC2 TA31136FN D CPU IC8 HD6433876B50H EEPROM IC7 HN58X2432TI OTHER HN58X2464TI H D A converter IC10 M62363FP 650C PLL reference oscillator X1 CR 664A 15 3 MHz OTHER CR 671A 15 3 MHz A D Crystal filter FI1 FL 311 OTHER FL 312 C FL 333 F G FL 334 E PLL IC IC1 µPD3140GS IF amplifier Q14 2SC4215 O A W N type B ETS CEPT version C W type of GEN D EIA TIA version E W type of ET...

Page 6: ...arate front panel and chassis REMOVING THE MAIN UNIT 1 Remove the searing rubber 2 Unsolder 4 points D and unscrew 1 nut E 3 Unscrew 3 screws F and 6 screws G silver 2 mm to separate the chassis and the MAIN unit 4 Take off the MAIN unit in the direction of the arrow nickel 2 mm x 2 Front panel Chassis J6 Speaker connector B C A F black 2 mm x 2 silver 2 mm x 6 Shield cover Guide holes MAIN unit S...

Page 7: ...OPTIONAL UNIT INSTALLATIONS 1 Remove the option cover 2 Connect one of UT 96 UT 105 UT 108 UT 109 UT 110 and UT 111 optional unit to J5 3 Replace the option cover to the chassis hole Option cover Option unit J5 ...

Page 8: ...ill pass through a crystal filter at the next stage of the 1st mixer 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 two crystal filters FI1 to sup press out of band signals The filtered 1st IF signal is applied to the IF amplifier Q14 then applied to the 2nd mixer c...

Page 9: ...ode and narrow band mode 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 The AF signals from the microphone are applied to the microphone amplifier circuit IC3c pin 10 The amplified AF signals are passed through the low...

Page 10: ...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 4 4 POWER SUPPLY CIRCUITS VOLTAGE LINE PLL circuit Shift register 2 Prescaler Phase detector Loop filt...

Page 11: ...5 regulator control signal Low While power is ON Outputs 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 Outputs LCD backlight control signal High Lights ON Outputs EEPROM IC7 pin 6...

Page 12: ...ndows 98 Intel i486DX processor or faster Pentium 100 MHz or faster recommended At least 16 MB RAM and 10 MB of hard disk space 640 480 pixel display 800 600 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 q Boot up Windows Quit all applications when ...

Page 13: ...BPF T2 45 2Dh 0 88 V BPF T3 76 4Ch 1 49 V T4 POW 60 3Ch 1 18 V REF 112 70h 2 20V DTCS BL 90 5Ah 1 76 V Dev 45 2Dh 0 88 V SQL Lev 0 00h 1 18 V CH No 01 RX Freq 216 050 TX Freq RF Power High TCXO Transceiver s connection state Reload adjustment data Receive sensitivity measurement Connected DC voltage PLL lock voltage Operating channel select RF output power NOTE Screen display exampe 1 5 4 6 10 11 ...

Page 14: ... meter Speaker 8 Ω Audio generator OPC 478 CAUTION DO NOT transmit while an SSG is connected to the antenna connector DC POWER SUPPLY GND DC power cable connections SOFTWARE ADJUSTMENT PLL ADJUSTMENT Top view Soldering DC cable here DC POWER SUPPLY Battery type detector Battery type detector NOTE When you adjust the output power high power the battery type detector must be con nected to GND see il...

Page 15: ...and Receiving Transmitting MAIN Connect a digital multi meter to check point LV 2 0 V 1 5 2 5 V MAIN L11 Verify ADJUSTMENT ADJUSTMENT CONDITIONS UNIT LOCATION VALUE UNIT ADJUST MEASUREMENT ADJUSTMENT L11 PLL lock voltage adjustment LV PLL lock voltage check point MAIN unit Bottom view RF power meter ...

Page 16: ...MIC jack DTCS code 007 Transmitting REFERENCE FREQUENCY TXF OUTPUT POWER POWER LO POWER HI FM DEVIATION MOD DTCS WAVE FORM DTCS BAL Top panel Top panel Top panel Top panel Loosely couple a frequnecy counter to the antenna connec tor Connect an RF power meter to the antenna connector Connect an FM deviation meter to the antenna connector through the attenuator Connect an FM deviation meter with an ...

Page 17: ...eceiving Receiving RX SENSITIVITY BPF T1 BPF T4 SQUELCH LEVEL SQL Top panel Top panel Connect a SINAD meter with an 8Ω load to the SP jack Connect a SINAD meter with an 8Ω load to the SP jack ADJUSTMENT ADJUSTMENT CONDITION MEASUREMENT VALUE UNIT LOCATION The output level of the standard signal generator SSG is indicated as the SSG s open circuit SOFTWARE ADJUSTMENT continued Select an operation u...

Page 18: ...1670 S DIODE RB706F 40T106 D33 1790001670 S DIODE RB706F 40T106 D34 1790000950 S ZENER MA8056 M TX E only FI1 2010002430 S XTAL FL 311 31 05 MHz OTHER 2010002440 S XTAL FL 312 31 05 MHz G 2030000130 S MONOLITH FL 333 31 050 MHz M P 2030000140 S MONOLITH FL 334 31 050 MHz J FI2 2020001080 S CERAMIC SFPC450G TC01 OTHER 2020001490 S CERAMIC SFPC450E TC01 G P 2020001830 S FILTER SFPC450D TC01 J 202000...

Page 19: ...THER 7030003480 S RESISTOR ERJ3GEYJ 222 V 2 2 kΩ I R88 7030003620 S RESISTOR ERJ3GEYJ 333 V 33 kΩ R 7030003630 S RESISTOR ERJ3GEYJ 393 V 39 kΩ OTHER R89 7030003450 S RESISTOR ERJ3GEYJ 122 V 1 2 kΩ R90 7030003780 S RESISTOR ERJ3GEYJ 684 V 680 kΩ R93 7030003610 S RESISTOR ERJ3GEYJ 273 V 27 kΩ R94 7030003800 S RESISTOR ERJ3GEYJ 105 V 1 MΩ R95 7030003800 S RESISTOR ERJ3GEYJ 105 V 1 MΩ R96 7030003640 S...

Page 20: ...V 56 Ω R257 7030004050 S RESISTOR ERJ3GEYJ 1R0 V 1 Ω R258 7030003620 S RESISTOR ERJ3GEYJ 333 V 33 kΩ R260 7030003560 S RESISTOR ERJ3GEYJ 103 V 10 kΩ R261 7030003560 S RESISTOR ERJ3GEYJ 103 V 10 kΩ R262 7030003440 S RESISTOR ERJ3GEYJ 102 V 1 kΩ OTHER 7030004050 S RESISTOR ERJ3GEYJ 1R0 V 1 Ω G R264 7030003660 S RESISTOR ERJ3GEYJ 683 V 68 kΩ OTHER 7030003700 S RESISTOR ERJ3GEYJ 154 V 150 kΩ R R265 70...

Page 21: ...1J T A OTHER C122 4030007170 S CERAMIC C1608 CH 1H 221J T A I 4030010760 S CERAMIC C1608 CH 1H 331J T A OTHER C123 4030006860 S CERAMIC C1608 JB 1H 102K T A C124 4030006900 S CERAMIC C1608 JB 1H 103K T A C125 4030006870 S CERAMIC C1608 JB 1H 222K T A C126 4030008470 S CERAMIC C1608 JB 1H 272K T A C128 4030008680 S CERAMIC C2012 JF 1C 105Z T A C129 4550006680 S TANTALUM ECST0JY156R C131 4030006900 ...

Page 22: ...60 S CERAMIC C1608 CH 1H 270J T A A 4030009990 S CERAMIC C1608 CH 1H 200J T A OTHER C288 4030006860 S CERAMIC C1608 JB 1H 102K T A C289 4030006900 S CERAMIC C1608 JB 1H 103K T A C290 4030007030 S CERAMIC C1608 CH 1H 150J T A C293 4030011600 S CERAMIC C1608 JB 1E 104K T N C294 4550006110 S TANTALUM TEMSVB2 0J 336M8L C295 4030006860 S CERAMIC C1608 JB 1H 102K T A C296 4030006860 S CERAMIC C1608 JB 1...

Page 23: ...0040390 SP net B 1 MP30 8930046050 SP net C 1 MP31 8810009510 Screw BT M2 x 4 NI ZU 8 MP32 8810009560 Screw BT M2 x 6 ZK 7 MP33 8810000100 Screw M2 x 4 4 MP36 8930051330 2251 contact rubber 1 MP37 8930050800 2251 jack cap 1 MP38 8950005240 2251 contact spring 1 MP39 8860001210 2251 ANT rug 1 MP40 8930051750 Sponge GL 1 MP41 8510012900 2251 shield plate 1 MP42 8860001230 2251 rug A only 1 MP43 8930...

Page 24: ... C MP37 C MP21 C MP3 M DS1 M EP2 M MP1 M MP2 M MP18 C MP40 C MP22 C MP32 C MP5 M MP23 C MP12 C MP3 C MP32 C MP13 C MP13 C MP27 C MP10 C MP26 C MP4 C MP25 C MP32 C MP5 C MP14 C MP38 C MP36 C MP31 C MP31 C MP2 C MP15 C MP33 C MP39 C SP1 M MP31 C MP32 C MP31 C MP31 C MP31 C MP41 C MP8 C MP9 C MP33 C MP24 C ...

Page 25: ...UN911 H Symbol 6P XP1213 Symbol 9L 3SK320 Symbol U7 XP6501 AB Symbol 5N 3SK293 Symbol UF DTA144 EUA Symbol 16 TRANSISTOR AND FET S B E C B E C B E C G S D S D G top view S D S G2 G1 D S G2 G1 B E C B E C B E C E1 E2 B2 C1 B1 C2 B E C D G S B E C B C E E1 B1 B2 C1 C2 D S G2 G1 DIODES MA77 Symbol 4B HVC350B Symbol BO HVU350B Symbol 4B MA2S077 Symbol S DAN202K Symbol N 1SV288 Symbol TJ MA8030 H Symbo...

Page 26: ...C13 R7 R5 R3 R2 C205 C5 R9 W7 R210 R53 C52 C4 C2 C1 R1 R52 C92 C90 C81 C78 R222 R62 R57 C85 C93 C84 R64 R65 C73 C10 R108 C135 R116 C124 C243 R251 C179 R17 R97 C54 C51 C300 C303 R253 C111 C115 C117 L7 C290 C112 R244 C116 R83 R82 C159 R86 R85 R87 C19 C120 C122 R135 C156 C283 R88 C20 C121 C118 C280 R255 C289 R142 C14 C282 L28 C15 C22 C160 C119 Q19 Q20 C113 R134 C63 R45 R34 C46 C131 R125 C212 R168 R44...

Page 27: ...61 C65 C69 R50 R49 W8 C70 C123 C236 C244 R150 C71 R48 R51 D7 C66 C53 L8 R18 C27 R68 R69 C29 R77 C28 R26 C36 R25 C35 C38 D13 D5 C37 C39 L34 L10 C31 Q6 C30 C62 R41 C61 C42 R29 C218 C44 C41 C45 C47 R184 R152 R227 R202 C219 R123 C140 R121 C250 C216 R145 R120 C139 C228 R203 C227 R207 R224 R223 R229 R230 R231 R191 R192 C225 C222 C297 C296 C202 C245 C221 C201 R190 R225 R228 R234 R267 R153 R33 R32 C60 L14...

Page 28: ...C52 C4 C2 C1 R1 R52 C92 C90 C81 C78 R222 R62 R57 C85 C93 C84 R64 R65 C73 C10 R108 C135 R116 C124 C243 R251 C179 R17 R97 C54 C51 C300 C303 R253 C111 C115 C117 L7 C290 C112 R244 C116 R83 R82 C159 R86 R85 R87 C19 C120 C122 R135 C156 C283 R88 C20 C121 C118 C280 R255 C14 R142 C289 C282 L28 C15 C22 C160 C119 Q19 Q20 C113 R134 C63 R45 R34 C46 C131 R125 C212 R168 R44 R30 R31 C148 C214 R113 C128 R112 R174 ...

Page 29: ... W8 C70 C123 C236 C244 R150 C71 R48 R51 D7 C66 C53 L8 R18 C27 R68 R69 C29 R77 C28 R26 C36 R25 C35 C38 D13 D5 C37 C39 L34 L10 C31 Q6 C30 C62 R41 C61 C42 R29 C218 C44 C41 C45 C47 R184 R152 R227 R202 C219 R123 C140 R121 C250 C216 R145 R120 C139 C228 R203 C227 R207 R224 R223 R229 R230 R231 R191 R192 C225 C222 C297 C296 C202 Q40 C245 C221 C201 R190 R225 R228 R234 R267 R153 R33 R32 C60 L14 C32 R28 R27 C...

Page 30: ... C1 R1 R52 C92 C90 C81 C78 R222 R62 R57 C85 C93 C84 R64 R65 C73 C10 R108 C135 R116 C124 C243 R251 C179 R17 R97 C54 C51 C300 C303 R253 C111 C115 C117 L7 C290 C112 C307 C308 R244 R269 C116 R83 R82 C159 R86 R85 R87 C19 C120 C122 R135 C158 C156 C283 R88 C20 C121 C118 C280 R255 C289 R142 C14 C282 L28 C15 C22 C160 C119 Q19 Q20 C113 R134 C63 R45 R34 C46 C131 R125 C212 R168 R44 R30 R31 C148 C214 R113 C128...

Page 31: ...123 C236 C244 R150 C71 R48 R51 D7 C66 C53 L8 R18 C27 R68 R69 C29 R77 C28 R26 C36 R25 C35 C38 D13 D5 C37 C39 L34 L10 C31 Q6 C30 C62 R41 C61 C42 R29 C218 C44 C41 C45 C47 R184 R152 R227 R202 C219 R123 C140 R121 C250 C216 R145 R120 C139 C228 R203 C227 R207 R224 R223 R229 R230 R231 R191 R192 C225 C222 C297 C296 C202 C245 C221 C201 R190 R225 R228 R234 R267 R153 R33 R32 C60 L14 C32 R28 R27 C34 C229 D28 Q...

Page 32: ...7030000500 S RESISTOR MCR10EZHJ 10 kΩ 1 R6 7030000190 S RESISTOR MCR10EZHJ 27 Ω 270 1 R7 7030001740 S RESISTOR MCR10EZHJ 2 kΩ 1 R8 7030001740 S RESISTOR MCR10EZHJ 2 kΩ 1 R9 7030000590 S RESISTOR MCR10EZHJ 56 kΩ 1 R10 7030000500 S RESISTOR MCR10EZHJ 10 kΩ 1 R11 7030000380 S RESISTOR MCR10EZHJ 1 kΩ 1 C1 4030001150 S CERAMIC GRM40 F 104Z 25PT 1 C2 4030001150 S CERAMIC GRM40 F 104Z 25PT 1 C3 403000115...

Page 33: ...6 27 C2 0 1 R7 2 k R8 2 k R9 56 k R10 10 k R4 10 k Q4 2SC2712 GR C3 0 1 Q2 RN2404 R3 27 D1 1SS355 Q3 RN1409 D3 MA8056 M R11 1 k C1 0 1 13 80 V 12 49 V 12 47 V 11 82 V 11 80 V 5 62 V 0 V 0 74 V 0 73 V 0 V 13 77 V 13 63 V 12 46 V 0 23 V 0 22 V 7 20 V 8 01 V 7 98 V C4 C1 R1 R9 R10 R5 C2 R7 R8 R6 D1 Q1 W1 R2 R11 R4 Q2 Q3 Q4 D3 D2 R3 C3 ...

Page 34: ...ESET LPF LPF BUFF 5 CPU VCC IC11 S 80942ANMP DD6 IC6 TK11250BM OTHER NJM2870 A S5C S5 CONT CPU5 NWC Q20 DTA144EU REG S5 S5 Q21 2SA1577 Q IC3B NJM2902V HPF LPF IC4 BU4066BCFV SD NOIS CPU5 Q18 2SB1132 R Q19 XP6501 AB 5V OPT BUFF D A AF OUT SP Q31 DTC144TU D27 RB706F 40 IC10 M62363FP 650C VR MIC JACK SP JACK EXT MIC SP BATT GND BDET VCC CLONE POWER SW PRE ENPHA MIC AMP ANALOG SW REG R5 REG T5 R5 T5 Q...

Page 35: ...4TI Q R228 10 k R225 100 k C245 0 01 CLOUT CLOUT CLIN CLIN NOIS NOIS VIN XIN XOUT RESET CSIFT R102 10 R101 1 M C193 8 P C194 15 P X2 CR 663 R226 1 k R232 1 k CONT R193 100 k R194 100 k R195 100 k R196 100 k R272 100 k D only R273 100 k D only R235 680 k R241 1 M R242 1 M R243 1 M C199 0 1 C250 0 01 R207 47 k R234 10 k D 22 k OTHER Q35 2SC4116 GR C227 0 047 D 0 1 OTHER Q38 DTC144EU OPT2 OPT1 CTDA0 ...

Page 36: ... 6 FILOUT 7 FILIN 8 AFOUT 9 QUAD 10 IFOUT 11 RSSI 12 N DET 13 N REC 14 GND 15 MIXIN 16 IC2 TA31136FN D C117 0 001 R83 470 R270 47 k D only C113 0 001 C112 0 001 R136 100 C114 0 033 C303 0 001 C66 18 P C67 10 P Q10 2SC4116 GR R89 1 2 k R90 680 k C53 18 P C51 47 P C56 0 01 C65 2 P L13 1 0 H L25 1 0 H P10 TMOW VSS COM4 COM3 COM2 COM1 KS4 KS3 KS2 KS1 KS0 KR3 KR2 KR0 KR1 S1 V3 V2 V1 VCC PA3 COM4 PA2 CO...

Page 37: ... C82 0 001 R57 100 k R62 100 k C138 0 001 R258 33 k C85 180 P C83 1 P 2 U350B D11 HVU350B 7 0 k R66 00 k R64 100 k 95 001 C93 0 001 R65 100 k C92 100 P C94 1 P T3 T2 T1 C73 0 1 R59 470 C87 0 01 C88 0 001 L26 3225 H C19 0 001 R255 56 L6 39 nH C14 0 001 OTHER 0 01 N C21 4 7 L5 10 5 nH C289 0 01 C20 0 001 Q1 2SK2974 C15 82 P R5 22 C179 0 01 R10 27 K 68 A 82 OTHER R61 47 L18 56 nH C 68 nH B C277 1 5 P...

Page 38: ...001 C204 0 001 L24 2 7 H D1 MA77 C10 0 001 C251 0 001 C252 0 001 L4 50 nH C281 0 001 L31 7 5 nH C18 0 001 C13 0 001 R2 2 2 k R3 2 2 k R161 22 k R162 22 k C287 20 P OTHER 27 P A C278 20 P OTHER 27 P A D32 RB706F 40 D33 RB706F 40 S5 C8 0 001 R1 82 k L1 32 nH C3 30 P OTHER 39 P N L2 28 nH R210 3 9 k Q37 DTA144EU R53 10 k R251 330 k R54 180 k C243 0 001 R163 2 2 k 1 2 3 11 4 IC3A NJM2902V D9 HVU350B R...

Page 39: ......

Page 40: ...1 1 32 Kamiminami Hirano ku Osaka 547 0003 Japan S 13713IZ C1V q 2000 Icom Inc ...

Page 41: ...SERVICE MANUAL UHF FM TRANSCEIVERS ...

Page 42: ... F4GT MAIN UNIT 1 pieces 8810009510 Screw BT M2 x 4 NI ZU IC F4GS Chassis 10 pieces Addresses are provided on the inside back cover for your convenience 1 Make sure a problem is internal before disassembling the transceiver 2 DO NOT open the transceiver until the transceiver is disconnected from its power source 3 DO NOT force any of the variable components Turn them slowly and smoothly 4 DO NOT s...

Page 43: ...ECTION 5 ADJUSTMENT PROCEDURES 5 1 PREPARATION 5 1 5 2 PLL ADJUSTMENT 5 4 5 3 SOFTWARE ADJUSTMENT 5 5 SECTION 6 PARTS LIST SECTION 7 MECHANICAL PARTS AND DISASSEMBLY SECTION 8 SEMI CONDUCTOR INFORMATION SECTION 9 BOARD LAYOUTS 9 1 LOW BAND 9 1 9 2 440 470 MHz BAND EXCEPT W N TYPE 9 3 9 3 470 500 MHz AND HIGH BANDS 9 5 9 4 W N TYPE 9 7 SECTION 10 BC 137 OPTIONAL DESKTOP CHARGER INFORMATION 10 1 PAR...

Page 44: ...ls 2 banks 2 BANK version 16 ch 16 channel version 7 2 V DC negative ground supplied battery pack 1 55 A 800 mA 250 mA 70 mA 2 0 kHz W M type 1 5 kHz N type 0 00025 25 C to 55 C 30 C to 60 C 22 C to 140 C 54 W 132 H 35 D mm 25 32 W 53 16 H 13 8 D inch 355 g 12 5 oz High 4 W Low 1 W Variable reactance frequency modulation 5 0 kHz W type 4 0 kHz M type 3 2 5 kHz N type 0 25 µW 1 GHz 1 0 µW 1 GHz 73 ...

Page 45: ...2363FP 650C EEPROM IC7 HN58X2432TI OTHER HN58X2464TI 100 channel version CPU IC8 HD6433876B50H Low pass filter circuit Antenna switcing circuit D2 D8 MA77 Power amplifier Q1 2SK2974 IF amplifier Q14 2SC4215 O PLL IC IC1 µPD3140GS TX RX switch D3 D4 MA77 Mic amplifier circuit APC IC3A NJM3403AV Q37 DTA144EU TOP VIEW BOTTOM VIEW ...

Page 46: ...to separate front panel and chassis REMOVING THE MAIN UNIT 1 Remove the searing rubber 2 Unsolder 4 points D and unscrew 1 nut E 3 Unscrew 3 screws F and 6 screws G silver 2 mm to separate the chassis and the MAIN unit 4 Take off the MAIN unit in the direction of the arrow nickel 2 mm x 2 Front panel Chassis J6 Speaker connector B C A D F F G G G D silver 2 mm x 6 E Shield cover Guide holes MAIN u...

Page 47: ...ONAL UNIT INSTALLATIONS 1 Remove the option cover 2 Connect one of UT 96 UT 105 UT 108 UT 109 UT 110 UT 111 and UT 113 optional units to J5 3 Replace the option cover to the chassis hole Option cover Option unit J5 ...

Page 48: ...cy will pass through a crystal filter at the next stage of the 1st mixer 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 46 35 MHz 1st IF signal The 1st IF signal is applied to a pair of crystal filters FI1 to suppress out of band signals The filtered 1st IF signal is applied to the IF amplifier Q14 then applied to the 2n...

Page 49: ...vel both wide band mode and narrow band mode 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 The AF signals from the microphone are applied to the microphone amplifier circuit IC3c pin 10 The amplified AF signals are pa...

Page 50: ...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 Q403 via the T R switch ing diode D3 D4 4 4 POWER SUPPLY CIRCUITS VOLTAGE LINE PLL CIRCUIT Shift register 3 Prescaler Phase detector Loop filter Programmable counter Programmable divider X4 15 3 MHz 45 9 MHz signal to the FM IF IC DEV ...

Page 51: ...S5 regulator control signal Low While power is ON Outputs 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 Outputs LCD backlight control signal High Lights ON Outputs EEPROM IC7 pin ...

Page 52: ... 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 640 480 pixel display 800 600 pixel display recommend ed ADJUSTMENT SOFTWARE INSTALLATION q Boot up Windows Quit all applications when Windows is running w Insert the cloning software CD ROM into the apropriate CD ROM drive e...

Page 53: ...F T3 76 4Ch 1 49 V T4 POW 60 3Ch 1 18 V REF 112 70h 2 20V DTCS BL 90 5Ah 1 76 V Dev 45 2Dh 0 88 V SQL Lev 0 00h 1 18 V CH No 01 RX Freq 216 050 TX Freq RF Power High TCXO Transceiver s connection state Reload adjustment data TCXO tag must check for F4G adjustment Receive sensitivity measurement Connected DC voltage PLL lock voltage Operating channel select RF output power NOTE SCREEN DISPLAY EXAMP...

Page 54: ... meter Speaker 8 Audio generator OPC 478 CAUTION DO NOT transmit while an SSG is connected to the antenna connector DC POWER SUPPLY GND DC POWER CABLE CONNECTIONS SOFTWARE ADJUSTMENT PLL ADJUSTMENT Top view Soldering DC cable here DC POWER SUPPLY Battery type detector Battery type detector NOTE When you adjust the output power high power the battery type detector must be con nected to GND see illu...

Page 55: ...ency 430 000 MHz A 470 000 MHz B 500 000 MHz C 512 000 MHz D 520 000 MHz E Receiving Transmitting MAIN Connect a digital multi meter to check point LV 1 3 V 1 3 V B 1 05 V except B 3 0 4 5 V A B C 2 0 3 7 V D 2 5 4 2 V E 3 0 4 5 V A C 2 7 4 2 V B 2 0 3 7 V D 2 5 4 2 V E MAIN L11 L405 Verify ADJUSTMENT ADJUSTMENT CONDITIONS UNIT LOCATION VALUE UNIT ADJUST MEASUREMENT ADJUSTMENT A 400 430 MHz B 440 ...

Page 56: ...switch Low No audio applied to the MIC jack DTCS code 007 Transmitting REFERENCE FREQUENCY TXF OUTPUT POWER POWER LO POWER HI FM DEVIATION MOD DTCS WAVE FORM DTCS BAL Top panel Top panel Top panel Top panel Loosely couple a frequnecy counter to the antenna connec tor Connect an RF power meter to the antenna connector Connect an FM deviation meter to the antenna connector through the attenuator Con...

Page 57: ...nel Connect a SINAD meter with an 8Ω load to the SP jack Connect a SINAD meter with an 8Ω load to the SP jack ADJUSTMENT ADJUSTMENT CONDITION MEASUREMENT VALUE UNIT LOCATION The output level of the standard signal generator SSG is indicated as the SSG s open circuit SOFTWARE ADJUSTMENT continued Select an operation using keys then set specified value using keys on the connected computer keyboard C...

Page 58: ...RICAP HVU350B TRF S Surface mount D403 1720000780 S VARICAP HVU350B TRF D404 1720000400 S VARICAP 1SV245 TPH3 FI1 2010002450 S XTAL FL 313 46 35 MHz L 2010002500 S XTAL FL 321 46 350MHZ G 2030000150 S MONOLITH FL 335 46 350 MHz M 2030000160 S MONOLITH FL 336 46 350 MHz OTHER FI2 2020001080 S CERAMIC SFPC450G TC01 I 2020001490 S CERAMIC SFPC450E TC01 OTHER 2020001930 S CERAMIC CFWC450F D X2 6050010...

Page 59: ...30003570 S RESISTOR ERJ3GEYJ 123 V 12 kΩ R104 7030003680 S RESISTOR ERJ3GEYJ 104 V 100 kΩ R105 7030005000 S RESISTOR ERJ2GEJ 471 X 470 Ω OTHER 7030009280 S RESISTOR ERJ2GE H R107 7030003670 S RESISTOR ERJ3GEYJ 823 V 82 kΩ I 7030003700 S RESISTOR ERJ3GEYJ 154 V 150 kΩ OTHER R108 7030003710 S RESISTOR ERJ3GEYJ 184 V 180 kΩ R109 7030005050 S RESISTOR ERJ2GEJ 103 X 10 kΩ R112 7030003800 S RESISTOR ERJ...

Page 60: ...103 V 10 kΩ R410 7030003500 S RESISTOR ERJ3GEYJ 332 V 3 3 kΩ R411 7030003490 S RESISTOR ERJ3GEYJ 272 V 2 7 kΩ R413 7030003230 S RESISTOR ERJ3GEYJ 180 V 18 Ω C only R414 7030003380 S RESISTOR ERJ3GEYJ 331 V 330 Ω OTHER 7030003390 S RESISTOR ERJ3GEYJ 391 V 390 Ω J C 7030003400 S RESISTOR ERJ3GEYJ 471 V 470 Ω A R416 7030003500 S RESISTOR ERJ3GEYJ 332 V 3 3 kΩ R417 7030003500 S RESISTOR ERJ3GEYJ 332 V...

Page 61: ...030011770 S CERAMIC C1608 CH 1H 060B T A J C97 4030006970 S CERAMIC C1608 CH 1H 060D T A E 4030006990 S CERAMIC C1608 CH 1H 080D T A B 4030009920 S CERAMIC C1608 CH 1H 050B T A OTHER C98 4030007050 S CERAMIC C1608 CH 1H 220J T A C99 4030006860 S CERAMIC C1608 JB 1H 102K T A C100 4030006990 S CERAMIC C1608 CH 1H 080D T A C104 4030013850 S CERAMIC ECUE1E102KBQ C105 4030014180 S CERAMIC ECUE1H470JCQ ...

Page 62: ...08 CH 1H 030B T A C 4030009910 S CERAMIC C1608 CH 1H 040B T A J 4030011770 S CERAMIC C1608 CH 1H 060B T A E C412 4030011770 S CERAMIC C1608 CH 1H 060B T A C413 4030006980 S CERAMIC C1608 CH 1H 070D T A C414 4030006990 S CERAMIC C1608 CH 1H 080D T A OTHER 4030007000 S CERAMIC C1608 CH 1H 090D T A B C416 4030006860 S CERAMIC C1608 JB 1H 102K T A C417 4030009500 S CERAMIC C1608 CH 1H 0R5B T A OTHER 4...

Page 63: ...JPM1990 2711R S2 2230001070 S SWITCH JPM1990 2711R S3 2230001070 S SWITCH JPM1990 2711R SP1 2510001060 SPEAKER K036NA500 47 W1 8900009640 CABLE OPC 963 W5 7030009970 S JUMPER MJ 0 1 W10 7030003860 S JUMPER ERJ3GE JPW V W11 7030003860 S JUMPER ERJ3GE JPW V W12 7030003860 S JUMPER ERJ3GE JPW V W15 7030010040 S JUMPER ERJ2GE JPW W16 7030003860 S JUMPER ERJ3GE JPW V except C EP1 0910052735 PCB B 5387E...

Page 64: ... 4 NI ZU 8 MP32 8810009560 Screw BT M2 x 6 ZK 7 MP33 8810000100 Screw M2 x 4 4 MP36 8930051330 2251 contact rubber 1 MP37 8930050800 2251 jack cap 1 MP38 8950005240 2251 contact spring 1 MP39 8860001210 2251 ANT rug MP41 8510013022 2252 shield plate 2 1 MP42 8930053110 Aluminum sheet AE 1 MP43 8510013210 2252 jack shield 1 CHASSIS PARTS REF NO ODER NO DESCRIPTION QTY DS1 5030001800 LM 7045B 1 SP1 ...

Page 65: ...MP21 C MP3 M DS1 M EP2 M MP1 M MP6 M MP18 C MP8 M MP22 C MP32 C MP5 M MP23 C MP12 C MP3 C MP32 C MP13 C MP13 C MP27 C MP10 C MP26 C MP4 C MP25 C MP32 C MP5 C MP14 C MP36 C MP38 C MP31 C MP31 C MP2 C MP15 C MP33 C MP33 C MP39 C SP1 M MP31 C MP32 C MP31 C MP31 C MP31 C MP41 C MP8 C MP9 C MP33 C MP42 C MP32 C MP24 C ...

Page 66: ...4 TU Symbol 06 DTC144 EU Symbol 26 XP1214 Symbol 9H XP1213 Symbol 9L DTC144 EE Symbol 26 XP6501 AB Symbol 5N DTA144 EU Symbol 16 TRANSISTOR AND FET S B E C B E C B E C G S D S D G top view S D S G2 G1 B E C B E C E1 E2 B2 C1 B1 C2 B E C B E C UN911 H Symbol 6P B E C B C E B E C B E C S D G B E C E1 B1 B2 C1 C2 E1 B1 B2 C1 C2 DIODES MA77 Symbol 4B HVU350B Symbol BO DAN202K Symbol N 1SV245 Symbol T3...

Page 67: ...5 C12 IC6 L443 Q20 C117 C659 R445 R253 C452 R177 R108 R33 C55 C54 R15 R9 R7 C26 R17 C75 C15 R65 C234 R223 J6 R185 C233 C672 C42 R81 R80 C56 R12 C93 C95 W15 R13 R34 R41 C60 R511 C673 R109 R509 R503 R523 R421 R521 R520 C674 C472 R508 C111 R529 C218 R526 R473 C116 R184 C571 R422 L406 C115 C492 C179 R176 C124 C552 R522 R401 R174 C574 R524 C252 R161 C467 R458 C285 C120 C160 R135 R88 W11 C118 R134 R420 ...

Page 68: ...407 C251 R160 R100 R178 C455 C169 R144 R104 R262 R109 C162 R141 R139 C161 R260 C107 C426 C410 R410 C424 C423 C566 C219 Q16 R140 C662 C248 C232 R215 C231 C193 R103 D14 C196 C209 R516 R241 R242 BUSY OPTION B5541A J5 F C R510 R137 C147 R130 C554 C144 R148 C223 C224 C562 R171 R136 Q17 IC11 R226 R232 R102 R181 R221 C553 C163 R128 C146 C164 R145 C250 L442 R229 R234 C139 R150 C244 C236 R500 R209 C221 C22...

Page 69: ... C21 Q1 C14 W5 C12 IC6 Q20 C117 C659 R445 R253 C452 C136 C135 R177 R108 R33 C55 C54 R15 R9 R7 C26 R17 C75 C15 R65 C234 R223 J6 R185 C233 C672 C42 R81 R80 C56 R12 C93 C95 W15 R13 R34 R41 C60 R511 C673 R109 R509 R503 R523 R421 R521 R520 C674 C472 R508 R115 C111 R529 C218 R526 R473 C116 R184 C571 R422 L406 C115 C492 C179 R176 C124 C552 R522 R401 R174 C574 R524 C252 R161 C467 R458 C285 C120 C160 R135 ...

Page 70: ... C204 C403 C404 R402 D401 C407 C251 R160 R100 R178 C455 C169 R144 R104 R262 R109 C162 R141 R139 C161 R260 C107 C426 C410 R410 C424 C423 C566 C219 Q16 R140 C662 C248 C232 R215 C231 C193 R103 D14 C196 C209 R516 R241 R242 BUSY OPTION ICOM B5387E J5 F C R510 R137 C147 R130 C554 C144 R148 C223 C224 C562 R171 R136 Q17 LV IC11 R226 R232 R102 R181 R221 C553 C163 R128 C146 C164 R145 C250 L442 R229 R234 C13...

Page 71: ...2 IC6 L443 Q20 C117 C659 R445 R253 C452 R177 R108 R33 C55 C54 R15 R9 R7 C26 R17 C75 C15 R65 C234 R223 J6 R185 C233 C672 C42 R81 R80 C56 R12 C93 C95 W15 R13 R34 R41 C60 R511 C673 R109 R509 R503 R523 R421 R521 R520 C674 C472 R508 C111 R529 C218 R526 R473 C116 R184 C571 R422 L406 C115 C492 C179 R176 C124 C552 R522 R401 R174 C574 R524 C252 R161 C467 R458 C285 C120 C160 R135 R88 W11 C118 R134 R420 C471...

Page 72: ...169 R144 R104 R262 R109 C162 R141 R139 C161 R260 C107 C426 C410 R410 C424 C423 C566 C219 Q16 R140 C662 C248 C232 R215 C231 C193 R103 D14 C196 C209 R516 R241 R242 BUSY OPTION B5542B J5 F C R510 R137 C147 R130 C554 C144 R148 C223 C224 C562 R171 R136 Q17 IC11 R226 R232 R102 R181 R221 C553 C163 R128 C146 C164 R145 C250 L442 R229 R234 C139 R150 C244 C236 R500 R209 C221 C229 R190 R192 R199 R198 R213 C22...

Page 73: ...36 C135 R177 R108 R33 C55 C54 R15 R9 R7 C26 R17 C75 C15 R65 C234 R223 J6 R185 C233 C672 C42 R81 R80 C56 R12 C93 C95 W15 R13 R34 R41 C60 R511 C673 R109 R509 R503 R523 R421 R521 R520 C674 C472 R508 R115 C111 R529 C218 R526 R473 C116 R269 C307 R184 C571 R422 L406 C115 C492 C179 R176 C124 C552 R522 R401 R174 C574 R524 C252 R161 C467 R458 C285 C120 C160 R135 R88 W11 C118 R134 R420 C471 R446 C134 R114 R...

Page 74: ...00 R178 C455 C169 R144 R104 R262 R109 C162 R141 R139 C161 R260 C107 C426 C410 R410 C424 C423 C566 C219 Q16 R140 C662 C248 C232 R215 C231 C193 R103 D14 C196 C209 R516 R241 R242 BUSY OPTION B5688B J5 F C R510 R137 C147 R130 C554 C144 R148 C223 C224 C562 R171 R136 R275 R276 C311 Q17 LV IC11 R226 R232 R102 R181 R221 C553 C163 R128 C146 C164 R145 C250 L442 R229 R234 C139 R150 C244 C236 R500 R209 C221 C...

Page 75: ...7030000500 S RESISTOR MCR10EZHJ 10 kΩ 1 R6 7030000190 S RESISTOR MCR10EZHJ 27 Ω 270 1 R7 7030001740 S RESISTOR MCR10EZHJ 2 kΩ 1 R8 7030001740 S RESISTOR MCR10EZHJ 2 kΩ 1 R9 7030000590 S RESISTOR MCR10EZHJ 56 kΩ 1 R10 7030000500 S RESISTOR MCR10EZHJ 10 kΩ 1 R11 7030000380 S RESISTOR MCR10EZHJ 1 kΩ 1 C1 4030001150 S CERAMIC GRM40 F 104Z 25PT 1 C2 4030001150 S CERAMIC GRM40 F 104Z 25PT 1 C3 403000115...

Page 76: ...6 27 C2 0 1 R7 2 k R8 2 k R9 56 k R10 10 k R4 10 k Q4 2SC2712 GR C3 0 1 Q2 RN2404 R3 27 D1 1SS355 Q3 RN1409 D3 MA8056 M R11 1 k C1 0 1 13 80 V 12 49 V 12 47 V 11 82 V 11 80 V 5 62 V 0 V 0 74 V 0 73 V 0 V 13 77 V 13 63 V 12 46 V 0 23 V 0 22 V 7 20 V 8 01 V 7 98 V C4 C1 R1 R9 R10 R5 C2 R7 R8 R6 D1 Q1 W1 R2 R11 R4 Q2 Q3 Q4 D3 D2 R3 C3 ...

Page 77: ...V Q37 DTA144EU IC10 M62363FP 650C RESET LPF LPF BUFF 5 CPU VCC IC11 S 80942ANMP DD6 IC6 TK11250BM OTHER NJM2870 A S5C S5 CONT CPU5 Q20 DTA144EU REG S5 S5 Q21 2SA1577 Q IC3B NJM3403AV HPF LPF IC4 BU4066BCFV SD NOIS CPU5 Q18 2SB1132 R Q19 XP6501 AB 5V OPT BUFF D A AF OUT SP Q31 DTC144TU D27 RB706F 40 IC10 M62363FP 650C VR MIC JACK SP JACK EXT MIC SP BATT GND BDET VCC CLONE POWER SW PRE ENPHA MIC AMP...

Page 78: ...6 WP 7 VCC 8 IC7 HN58X2432TI OTHER HN58X2464TI O R525 1 k C245 0 01 CLOUT CLOUT CLIN CLIN NOIS NOIS VIN XIN XOUT RESET CSIFT R102 10 R101 1 M C193 8 P C194 12 P X2 CR 663 R226 1 k R232 1 k CONT R193 100 k R194 100 k R195 100 k R196 100 k R273 100 k D only R272 100 k D only R235 680 k R241 1 M R242 1 M R243 1 M C199 0 1 C250 0 01 R207 47 k R234 22 k OTHER 10 k D Q35 2SC4116 GR C227 0 1 OTHER 0 047 ...

Page 79: ...54 WKP4 SEG5 P55 WKP5 SEG6 P56 WKP6 SEG7 P57 WKP7 SEG8 P60 SEG9 P61 SEG10 P62 SEG11 P63 SEG12 P64 SEG13 P65 SEG14 P66 SEG15 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 P81 AN1 P82 AN2 P83 AN3 P84 AN4 P85 AN5 P86 AN6 P87 AN7 AVREF VTREF TONED TONEM AVCC PE3 SEG52 CL1 PE2 SEG51 CL2 PE1 SEG50 DO PE0 SEG49 M PD7 SEG48 PD6 SEG47 PD5 SEG46 PD4 SEG45 PD3 SEG44 PD2 SEG43 PD1...

Page 80: ...50B L402 8 2 nH T3 T2 T1 1LO C11 6 P R524 NTCCM16084LH 223KC R68 10 k R69 1 k C99 0 001 C404 0 001 C403 47 P R402 47 k C19 0 001 Q2 2SK2973 C289 47 P OTHER 470 P B C552 0 001 W12 ERJ3GE JPW Q1 2SK2974 W11 ERJ3GE JPW W5 MJ 0 1 R522 10 R9 10 k R7 100 C15 39 P OTHER 56 P J C C18 470 P C17 0 001 C13 0 001 C12 0 001 R458 1 k R457 100 C492 10 P C471 47 P R446 56 k R445 220 Q403 2SC5107 O C452 10 P OTHER...

Page 81: ...nH L18 8 2 nH C105 47 P R72 47 k R70 4 7 k D12 HVU350B D11 HVU350B R67 10 k R66 150 k R64 220 k C95 47 P C557 47 P C93 47 P C559 47 P C407 47 P R65 10 k R405 10 k R404 220 k D401 HVU350B Q13 3SK239A C98 22 P L19 8 2 nH L402 8 2 nH L20 0 82 H C111 0 001 R81 1 k R80 120 k C115 100 P C307 0 001 D R253 470 C107 0 01 C106 15 P C104 0 001 Q14 2SC4215 O Q41 2SC4116 GR D only C109 0 001 F DET C118 0 001 R...

Page 82: ......

Page 83: ...1 1 32 Kamiminami Hirano ku Osaka 547 0003 Japan S 13713IZ C1U 1 2000 Icom Inc ...

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