background image

S.=Surface mount

[MAIN UNIT]

[MAIN UNIT]

R171

7030003640 S.RESISTOR

ERJ3GEYJ 473 V (47 k

R174

7030003580 S.RESISTOR

ERJ3GEYJ 153 V (15 k

R175

7030003440 S.RESISTOR

ERJ3GEYJ 102 V (1 k

R176

7030003510 S.RESISTOR

ERJ3GEYJ 392 V (3.9 k

R177

7030003440 S.RESISTOR

ERJ3GEYJ 102 V (1 k

R178

7030003510 S.RESISTOR

ERJ3GEYJ 392 V (3.9 k

R181

7030005870 S.RESISTOR

RR0816R-104-D (100 k

)

R182

7510001280 S.THERMISTOR NTCCM20124AG473J-T

R184

7030003560 S.RESISTOR

ERJ3GEYJ 103 V (10 k

R185

7030003440 S.RESISTOR

ERJ3GEYJ 102 V (1 k

R186

7030003640 S.RESISTOR

ERJ3GEYJ 473 V (47 k

R187

7030003440 S.RESISTOR

ERJ3GEYJ 102 V (1 k

B

7030003680 S.RESISTOR

ERJ3GEYJ 104 V (100 k

C

R190

7030003600 S.RESISTOR

ERJ3GEYJ 223 V (22 k

R191

7030003600 S.RESISTOR

ERJ3GEYJ 223 V (22 k

R192

7030003600 S.RESISTOR

ERJ3GEYJ 223 V (22 k

R193

7030003680 S.RESISTOR

ERJ3GEYJ 104 V (100 k

R194

7030003680 S.RESISTOR

ERJ3GEYJ 104 V (100 k

R195

7030003680 S.RESISTOR

ERJ3GEYJ 104 V (100 k

R196

7030003680 S.RESISTOR

ERJ3GEYJ 104 V (100 k

R197

7030003720 S.RESISTOR

ERJ3GEYJ 224 V (220 k

)

R198

7030003590 S.RESISTOR

ERJ3GEYJ 183 V (18 k

R199

7030003640 S.RESISTOR

ERJ3GEYJ 473 V (47 k

)

R200

7030003640 S.RESISTOR

ERJ3GEYJ 473 V (47 k

)

R202

7030003640 S.RESISTOR

ERJ3GEYJ 473 V (47 k

R203

7030003640 S.RESISTOR

ERJ3GEYJ 473 V (47 k

R204

7030003500 S.RESISTOR

ERJ3GEYJ 332 V (3.3 k

R205

7030003460 S.RESISTOR

ERJ3GEYJ 152 V (1.5 k

R206

7030003760 S.RESISTOR

ERJ3GEYJ 474 V (470 k

)

R207

7030003640 S.RESISTOR

ERJ3GEYJ 473 V (47 k

R208

7030003560 S.RESISTOR

ERJ3GEYJ 103 V (10 k

R209

7030003680 S.RESISTOR

ERJ3GEYJ 104 V (100 k

R210

7030003510 S.RESISTOR

ERJ3GEYJ 392 V (3.9 k

R211

7030003690 S.RESISTOR

ERJ3GEYJ 124 V (120 k

)

R212

7030003660 S.RESISTOR

ERJ3GEYJ 683 V (68 k

R213

7030003400 S.RESISTOR

ERJ3GEYJ 471 V (470 

R215

7030005870 S.RESISTOR

RR0816R-104-D (100 k

)

R216

7030005870 S.RESISTOR

RR0816R-104-D (100 k

)

R218

7030003690 S.RESISTOR

ERJ3GEYJ 124 V (120 k

R219

7030003690 S.RESISTOR

ERJ3GEYJ 124 V (120 k

R220

7030003730 S.RESISTOR

ERJ3GEYJ 274 V (270 k

R221

7030003740 S.RESISTOR

ERJ3GEYJ 334 V (330 k

R222

7030003560 S.RESISTOR

ERJ3GEYJ 103 V (10 k

) [OTHER]

7030003580 S.RESISTOR

ERJ3GEYJ 153 V (15 k

A

R223

7030003680 S.RESISTOR

ERJ3GEYJ 104 V (100 k

R224

7030003550 S.RESISTOR

ERJ3GEYJ 822 V (8.2 k

D

7030003600 S.RESISTOR

ERJ3GEYJ 223 V (22 k

A

7030003610 S.RESISTOR

ERJ3GEYJ 273 V (27 k

) [OTHER]

R225

7030003680 S.RESISTOR

ERJ3GEYJ 104 V (100 k

R226

7410000950 S.ARRAY

EXB-V8V 102JV

R227

7030003640 S.RESISTOR

ERJ3GEYJ 473 V (47 k

R228

7030003560 S.RESISTOR

ERJ3GEYJ 103 V (10 k

R229

7030003710 S.RESISTOR

ERJ3GEYJ 184 V (180 k

R230

7030003650 S.RESISTOR

ERJ3GEYJ 563 V (56 k

R231

7030003600 S.RESISTOR

ERJ3GEYJ 223 V (22 k

R232

7410000950 S.ARRAY

EXB-V8V 102JV

R234

7030003560 S.RESISTOR

ERJ3GEYJ 103 V (10 k

D

7030003600 S.RESISTOR

ERJ3GEYJ 223 V (22 k

) [OTHER]

R235

7030003780 S.RESISTOR

ERJ3GEYJ 684 V (680 k

R236

7410000950 S.ARRAY

EXB-V8V 102JV

R237

7410000950 S.ARRAY

EXB-V8V 102JV

R238

7410000950 S.ARRAY

EXB-V8V 102JV

R239

7030003440 S.RESISTOR

ERJ3GEYJ 102 V (1 k

R240

7030003440 S.RESISTOR

ERJ3GEYJ 102 V (1 k

R241

7030003800 S.RESISTOR

ERJ3GEYJ 105 V (1 M

R242

7030003800 S.RESISTOR

ERJ3GEYJ 105 V (1 M

R243

7030003800 S.RESISTOR

ERJ3GEYJ 105 V (1 M

R244

7030003680 S.RESISTOR

ERJ3GEYJ 104 V (100 k

R245

7030003680 S.RESISTOR

ERJ3GEYJ 104 V (100 k

R246

7030003680 S.RESISTOR

ERJ3GEYJ 104 V (100 k

R249

7030003640 S.RESISTOR

ERJ3GEYJ 473 V (47 k

R251

7030003740 S.RESISTOR

ERJ3GEYJ 334 V (330 k

R252

7030003680 S.RESISTOR

ERJ3GEYJ 104 V (100 k

R253

7030003400 S.RESISTOR

ERJ3GEYJ 471 V (470 

R255

7030003290 S.RESISTOR

ERJ3GEYJ 560 V (56 

R257

7030004050 S.RESISTOR

ERJ3GEYJ 1R0 V (1 

R258

7030003620 S.RESISTOR

ERJ3GEYJ 333 V (33 k

R260

7030003560 S.RESISTOR

ERJ3GEYJ 103 V (10 k

R261

7030003560 S.RESISTOR

ERJ3GEYJ 103 V (10 k

R262

7030003440 S.RESISTOR

ERJ3GEYJ 102 V (1 k

) [OTHER]

7030004050 S.RESISTOR

ERJ3GEYJ 1R0 V (1 

G

R264

7030003660 S.RESISTOR

ERJ3GEYJ 683 V (68 k

) [OTHER]

7030003700 S.RESISTOR

ERJ3GEYJ 154 V (150 k

R

R265

7030003680 S.RESISTOR

ERJ3GEYJ 104 V (100 k

R266

7030003580 S.RESISTOR

ERJ3GEYJ 153 V (15 k

R267

7030003640 S.RESISTOR

ERJ3GEYJ 473 V (47 k

R

7030003680 S.RESISTOR

ERJ3GEYJ 104 V (100 k

) [OTHER]

R268

7030003680 S.RESISTOR

ERJ3GEYJ 104 V (100 k

)

R269

7030003490 S.RESISTOR

ERJ3GEYJ 272 V (2.7 k

D

only

R270

7030003640 S.RESISTOR

ERJ3GEYJ 473 V (47 k

D

only

R271

7030003640 S.RESISTOR

ERJ3GEYJ 473 V (47 k

D

only

R272

7030003680 S.RESISTOR

ERJ3GEYJ 104 V (100 k

D

only

R273

7030003680 S.RESISTOR

ERJ3GEYJ 104 V (100 k

D

only

R274

7030003560 S.RESISTOR

ERJ3GEYJ 103 V (10 k

D

only

R275

7030003520 S.RESISTOR

ERJ3GEYJ 472 V (4.7 k

D

only

R276

7030003560 S.RESISTOR

ERJ3GEYJ 103 V (10 k

D

only

C1

4030007030 S.CERAMIC

C1608 CH 1H 150J-T-A

L

4030007050 S.CERAMIC

C1608 CH 1H 220J-T-A

K

C2

4030006990 S.CERAMIC

C1608 CH 1H 080D-T-A

A

4030007000 S.CERAMIC

C1608 CH 1H 090D-T-A

K

4030011770

S.CERAMIC

C1608 CH 1H 060B-T-A

[OTHER]

C3

4030007080 S.CERAMIC

C1608 CH 1H 390J-T-A

N

4030008560 S.CERAMIC

C1608 CH 1H 300J-T-A

[OTHER]

C4

4030007000 S.CERAMIC

C1608 CH 1H 090D-T-A

[OTHER]

4030009920 S.CERAMIC

C1608 CH 1H 050B-T-A

K

4030011530

S.CERAMIC

C1608 CH 1H 110J-T-A

A

C5

4030007040 S.CERAMIC

C1608 CH 1H 180J-T-A

[OTHER]

4030009650 S.CERAMIC

C1608 CH 1H 240J-T-A

B

C8

4030006860 S.CERAMIC

C1608 JB 1H 102K-T-A

C10

4030006860 S.CERAMIC

C1608 JB 1H 102K-T-A

C13

4030006860 S.CERAMIC

C1608 JB 1H 102K-T-A

C14

4030006860 S.CERAMIC

C1608 JB 1H 102K-T-A

[OTHER]

4030006900 S.CERAMIC

C1608 JB 1H 103K-T-A

N

C15

4030007120 S.CERAMIC

C1608 CH 1H 820J-T-A

C17

4030006860 S.CERAMIC

C1608 JB 1H 102K-T-A

C18

4030006860 S.CERAMIC

C1608 JB 1H 102K-T-A

C19

4030006860 S.CERAMIC

C1608 JB 1H 102K-T-A

C20

4030006860 S.CERAMIC

C1608 JB 1H 102K-T-A

C21

4550006540 S.TANTALUM

ECST1CY475R

C22

4030007060 S.CERAMIC

C1608 CH 1H 270J-T-A

C23

4030006860 S.CERAMIC

C1608 JB 1H 102K-T-A

C24

4030006860 S.CERAMIC

C1608 JB 1H 102K-T-A

C25

4030011770

S.CERAMIC

C1608 CH 1H 060B-T-A

C26

4030006860 S.CERAMIC

C1608 JB 1H 102K-T-A

C27

4030007040 S.CERAMIC

C1608 CH 1H 180J-T-A

C28

4030007020 S.CERAMIC

C1608 CH 1H 120J-T-A

C29

4030006860 S.CERAMIC

C1608 JB 1H 102K-T-A

C30

4030007050 S.CERAMIC

C1608 CH 1H 220J-T-A

C31

4030009920 S.CERAMIC

C1608 CH 1H 050B-T-A

C32

4030006860 S.CERAMIC

C1608 JB 1H 102K-T-A

C33

4030006860 S.CERAMIC

C1608 JB 1H 102K-T-A

C34

4030009500 S.CERAMIC

C1608 CH 1H 0R5B-T-A

C35

4030013850 S.CERAMIC

ECUE1E102KBQ

C36

4030013850 S.CERAMIC

ECUE1E102KBQ

C37

4030014020 S.CERAMIC

ECUE1H020BCQ

C38

4030014030 S.CERAMIC

ECUE1H2R5BCQ

C39

4030006860 S.CERAMIC

C1608 JB 1H 102K-T-A

C41

4030016800 S.CERAMIC

ECUE1H300JCQ

C

4030014340 S.CERAMIC

ECUE1H390JCQ

B

C42

4030006860 S.CERAMIC

C1608 JB 1H 102K-T-A

C44

4030013850 S.CERAMIC

ECUE1E102KBQ

C45

4030014440 S.CERAMIC

ECUE1H820JCQ

,

C

4030014320 S.CERAMIC

ECUE1H181JCQ

B

C46

4030006860 S.CERAMIC

C1608 JB 1H 102K-T-A

C47

4030011600

S.CERAMIC

C1608 JB 1E 104K-T-N

C48

4550006170 S.TANTALUM

ECST1AY225R

C49

4550006590 S.TANTALUM

ECST1CY684R

6 - 3

REF

ORDER

DESCRIPTION

NO.

NO.

REF

ORDER

DESCRIPTION

NO.

NO.

A

: L-band of ETS/CEPT version

B

: L-band

C

: H-band

D

: W/N-type

E

: ETS/CEPT version

F

: W-type and H-band of ETS/CEPT version

G

: W-type of [GEN]

H

: EIA/TIA version

I

: N and W/N type

J

: W-type of ETS/CEPT version

K

: L-band of [GEN] and EIA/TIA version

L

: H-band of [GEN] and EIA/TIA version

M

: N-type of ETS/CEPT version

N

: H-band of ETS/CEPT version

O

: W-type and L-band of [GEN]

P

: M (20 kHz)-type

Q

: 100 channel version

R

: N-type

Summary of Contents for IC-F3GT

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

Page 2: ...3GT 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 disassem...

Page 3: ...EDURES 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...

Page 4: ...version 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...

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...

Page 6: ...rate 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 th...

Page 7: ...PTIONAL 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 Optio...

Page 8: ...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...

Page 9: ...de 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 micr...

Page 10: ...eference 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...

Page 11: ...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 Hi...

Page 12: ...ws 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 SOFTWAR...

Page 13: ...PF 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 Transce...

Page 14: ...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...

Page 15: ...nd 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 L...

Page 16: ...C 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 cou...

Page 17: ...ceiving Receiving RX SENSITIVITY BPF T1 BPF T4 SQUELCH LEVEL SQL Top panel Top panel Connect a SINAD meter with an 8 load to the SP jack Connect a SINAD meter with an 8 load to the SP jack ADJUSTMENT...

Page 18: ...01670 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...

Page 19: ...80 S RESISTOR ERJ3GEYJ 222 V 2 2 k I R88 7030003620 S RESISTOR ERJ3GEYJ 333 V 33 k R 7030003630 S RESISTOR ERJ3GEYJ 393 V 39 k OTHER R89 7030003450 S RESISTOR ERJ3GEYJ 122 V 1 2 k R90 7030003780 S RES...

Page 20: ...RESISTOR ERJ3GEYJ 1R0 V 1 R258 7030003620 S RESISTOR ERJ3GEYJ 333 V 33 k R260 7030003560 S RESISTOR ERJ3GEYJ 103 V 10 k R261 7030003560 S RESISTOR ERJ3GEYJ 103 V 10 k R262 7030003440 S RESISTOR ERJ3GE...

Page 21: ...J 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...

Page 22: ...0 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 CERAM...

Page 23: ...040390 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 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...

Page 25: ...N911 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...

Page 26: ...13 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 C...

Page 27: ...1 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 R...

Page 28: ...52 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...

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...

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 R...

Page 31: ...23 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 C14...

Page 32: ...030000500 S RESISTOR MCR10EZHJ 10 k 1 R6 7030000190 S RESISTOR MCR10EZHJ 27 270 1 R7 7030001740 S RESISTOR MCR10EZHJ 2 k 1 R8 7030001740 S RESISTOR MCR10EZHJ 2 k 1 R9 7030000590 S RESISTOR MCR10EZHJ 5...

Page 33: ...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...

Page 34: ...SET 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...

Page 35: ...TI 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...

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...

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 0...

Page 38: ...01 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 D...

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: ...4GT 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 disassem...

Page 43: ...CTION 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 INFORMATIO...

Page 44: ...annels 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...

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 2...

Page 46: ...o 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...

Page 47: ...NAL 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 O...

Page 48: ...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...

Page 49: ...el 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 character...

Page 50: ...requency 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...

Page 51: ...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 H...

Page 52: ...400 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 60...

Page 53: ...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...

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...

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...

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...

Page 57: ...l Connect a SINAD meter with an 8 load to the SP jack Connect a SINAD meter with an 8 load to the SP jack ADJUSTMENT ADJUSTMENT CONDITION MEASUREMENT VALUE UNIT LOCATION The output level of the standa...

Page 58: ...ICAP 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...

Page 59: ...570 S RESISTOR ERJ3GEYJ 123 V 12 k R104 7030003680 S RESISTOR ERJ3GEYJ 104 V 100 k R105 7030005000 S RESISTOR ERJ2GEJ 471 X 470 OTHER 7030009280 S RESISTOR ERJ2GE H R107 7030003670 S RESISTOR ERJ3GEYJ...

Page 60: ...03 V 10 k R410 7030003500 S RESISTOR ERJ3GEYJ 332 V 3 3 k R411 7030003490 S RESISTOR ERJ3GEYJ 272 V 2 7 k R413 7030003230 S RESISTOR ERJ3GEYJ 180 V 18 C only R414 7030003380 S RESISTOR ERJ3GEYJ 331 V...

Page 61: ...30011770 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 C...

Page 62: ...8 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...

Page 63: ...PM1990 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 JU...

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 886000121...

Page 65: ...P21 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 MP...

Page 66: ...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...

Page 67: ...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...

Page 68: ...07 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 OPTI...

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 R...

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 C2...

Page 71: ...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 R42...

Page 72: ...69 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 C14...

Page 73: ...6 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...

Page 74: ...0 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...

Page 75: ...030000500 S RESISTOR MCR10EZHJ 10 k 1 R6 7030000190 S RESISTOR MCR10EZHJ 27 270 1 R7 7030001740 S RESISTOR MCR10EZHJ 2 k 1 R8 7030001740 S RESISTOR MCR10EZHJ 2 k 1 R9 7030000590 S RESISTOR MCR10EZHJ 5...

Page 76: ...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...

Page 77: ...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 BU4066...

Page 78: ...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 10...

Page 79: ...4 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 P8...

Page 80: ...0B 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...

Page 81: ...H 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 C9...

Page 82: ......

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

Reviews: