Icom IC-F3GS, IC-F3GT service manual Icom

Page 70

• MAIN UNIT (BOTTOM VIEW)

S1

S1

C158

+

+

C155 C174

C161

S3

 

 

 

 

 

 

 

S2

S2

R48

++

 

 

 

S3

 

 

 

 

 

 

 

 

X4

X4

 

 

R51

C72

 

 

 

 

 

 

C236

 

 

 

 

 

 

R261

 

 

 

 

 

 

 

 

C123

R519

 

 

 

R139

 

C65

 

 

 

 

 

 

 

 

 

 

 

 

 

R49

 

 

 

 

 

 

 

 

Q21

C669

C53

 

 

 

 

 

C244

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

IC13

 

 

 

 

R150

 

 

 

 

 

 

 

 

C566

W10

 

 

 

 

 

C66

C71

R50

 

 

 

 

 

 

 

 

 

 

C211

+

 

 

 

 

 

 

 

+

 

R191

 

 

 

R199R198

R501

R208R209

C221C229

C222

IC12

 

R190

R192

C249

R500

 

 

 

 

 

 

C201

 

 

 

 

 

 

 

 

 

 

 

C225

C202

 

R230

C245

C564

Q405

 

 

R197

R212

 

 

R211

 

+

 

 

C200

 

+ C198

 

 

 

 

 

 

R213

R532

 

 

 

R200

IC14

R533

ICOM

FI2

R260

 

C173

Q22

FI2

R469

MP5

C110

 

 

 

 

 

C10 MP5

C450

C251

R162

C288

C204

R160

R75

L24

C243

C105

 

R141

L25

 

 

 

 

 

 

 

 

 

 

 

 

 

IC10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C67

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C162

 

Q5

C32

L9

C30

C62

L14

C61

 

 

 

 

 

 

 

 

 

 

 

 

C114

R20

 

 

 

 

 

 

L405

 

 

 

 

 

 

 

 

 

FI1

 

C426

C424

 

 

C423

 

 

 

 

 

 

 

 

 

 

 

C31

R21

 

Q7

 

 

 

 

 

 

R165

R154

 

 

 

 

 

 

 

R153

 

 

R164

C565

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R152

 

 

 

R234

 

 

 

 

 

 

 

R417

C427

C422

C421

 

 

 

 

 

 

 

R229

 

 

 

EP13

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R416

C419

D404

C475

 

 

 

 

 

 

 

 

C28

 

 

R202 R227

C228

Q35

 

 

FI1

 

 

 

R22

 

 

 

 

 

C216

R525

 

 

 

 

R23

R504

Q6

C410

C418

D403

 

R203

C250

L442

 

 

R465

R18

 

 

 

 

C219

 

 

 

 

 

C33

 

D5

C411

C227

R224

R517

 

 

 

 

 

C416

 

C417

R410

 

 

 

 

R207

 

 

 

 

 

 

 

 

C29

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C670

 

C414

 

 

 

 

 

 

 

 

 

R145

C139

 

 

 

 

 

 

 

 

 

 

 

R120

 

 

 

 

 

 

 

 

 

 

 

L11

 

 

 

 

 

 

 

 

 

 

R19

 

 

 

 

 

D26

 

 

R109

C106

 

Q4

 

 

W16

 

 

 

R123

R121

 

 

Q8

 

 

 

 

R534

 

 

 

 

 

 

 

 

 

C140

R464

 

 

 

 

 

 

 

 

 

R77

 

L8

 

 

 

 

 

 

 

 

 

 

IC7

 

 

R231

R225

R228

R237

R236

R240

 

 

 

 

 

 

R245

 

 

 

 

 

R246

 

 

Q38

 

L33

IC8

R238

R239

 

R235

OPTION

 

 

 

 

 

 

R196

 

 

 

 

R195

 

 

 

 

R194

C199

 

 

 

R193

 

 

 

 

 

R241

R242

R243

C

 

 

C663

B5387E

D1

R96

C125

C126

R95

R178

R99

R104

C104

Q13

 

 

C107

C27

C413

R411

C412

 

Q16

 

 

 

 

R262

L20

C486

 

 

 

++

R122

 

 

 

 

 

 

 

 

 

 

 

R232

C132

BUSY

 

R3

D33

L4

C205

C666

C3

L1

C8

L2

L17

 

 

R55

 

 

R159

 

C76

 

 

R94

 

 

 

 

 

 

 

 

 

 

 

D29

 

+ +

 

 

 

 

 

 

 

L15

 

R59

C87

C88

R100

C129

R405

C79

 

C100

 

 

 

C94

 

 

 

C406

 

D10

 

 

 

 

 

Q12

 

 

R404

 

 

 

 

 

C86

C85

C403

C404

R402

D401

C407

L402

R70

R72

C98

 

L19

 

C97

C91

 

L21

 

C555

EP11

C559

R447

R449

R448

C168

C165

EP10

R132

C167

C455

R68

C99

R69

R506

 

C557

C169

R144

C163

C153

C553

R128

C152

 

 

C164

C150

R127

Q15

EP12

C151

 

IC5

C145

C146

 

C149

R126

 

R218

 

 

 

 

 

 

 

 

R219

R182

 

 

 

 

 

 

 

R140

R515

 

R215

 

 

Q36

R220

C248

C232

R181

C662

C231

C193

R221

 

 

 

 

 

R216

 

 

 

 

 

 

 

 

 

 

 

 

 

X2

 

 

 

 

 

R102

R101

C194

C195

 

R226

R147

 

R103

D14

 

 

C209

R516

LV

Q17

C563

R130

C147

R131

C554

C196

R146

C197

 

C144

 

+

 

 

C230

C550

 

 

 

+

 

R148

IC11

C154

+

+

 

 

R510

R137

1

J5

C223

C224

C562

R171

R136

C567

 

 

 

 

F

 

 

 

 

 

J5

J2

J3

1

 

 

 

 

 

 

 

 

 

 

 

 

 

15

PTTIN

PTTOUT

MICOUT

MICIN

AUX

BUSY

MOWN

SIGOUT

OPT1

OPT2

OPT3

GND

OPV3

OPV2

OPV1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GND

5V

VCC

MICMUTE

AFONOP

BEEPOUT

RXMUTE

DISCIN

AFOUT

REM

CCS

CIRQ

SO

SI

SCK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

30

 

J5

 

 

 

 

 

 

 

 

 

 

16

 

 

 

 

 

 

 

 

 

 

 

 

 

to the OPTIONAL unit

9 - 4

Image 70
Contents VHF FM Transceivers Ordering Parts IntroductionRepair Notes Table of Contents Section Specifications EIA/TIAMain Unit TOP View Inside ViewsBottom View Removing the Chassis Panel Disassembly and Option InstructionsDisassembly Instruction Removing the Main UnitOptional Unit Installations Circuit Description Receiver CircuitsTransmitter Circuits Power Supply Circuits Voltage Line PLL CircuitPort Allocations Output Expander IC IC10Adjustment Procedures Preparation¥ JIG cable Top view PLL Adjustment Software Adjustment TXFSoftware Adjustment Parts List Main UnitVariable Thermistor NTCCM20124AG473J-T Tantalum ECST0JY106R Chassis Unit Accessories Mechanical Parts and DisassemblyChassis Parts IC-F3GS parts Transistor and FET’S SEMI-CONDUCTOR InformationDiodes Board Layouts General and EIA/TIA Versions Except W/N-TYPEMP6 Main Unit Bottom ViewIC1 ETS/CEPT VersionMP5 VHF FI1 BC-137 Optional Desktop Charger Informasion Parts ListDisassembly Information ConvenientVoltage Diagram Board LayoutBlock Diagram Option UnitVoltage Diagram BU4066BCFVBand of ETS/CEPT version N-type DTA144EU Section Voltage Diagram Avref Vtref Toned Tonem AvccPage 32, Kamiminami, Hirano-ku, Osaka, 547-0003, Japan UHF FM Transceivers IC-F4GTIC-F4GS Preparation PLL Adjustment Software Adjustment Power supply requirement APC IC3A NJM3403AV Disassembly and Option Instructions Optional Unit Installations 2ND if and Demodulator Circuits RF signal From PLL Driver PLL Circuit Power Supply Circuits Voltage Line Resistor R132PTT Adjustment Procedures Screen Display Example DC Power Cable Connections L405 L11 Powerlo BPF T1 NJM3403AV-TE1 IC4 Resistor ERJ2GE Thermistor NTCCM1608 4LH 223KC Ceramic ECUE1H470JCQ ECEV1CA470SP Other Ceramic ECJ0EB1E471K Band MHz band MHz and H-band IC-F4GS parts DTA144 EU DTC144 EE DTC144 EU DTC144 TU LOW Band DS1FI1 440-470 MHz Band Except W/N-TYPE Icom 470-500 MHz and High Bands B5542B C308 Q19 B5688B BC-137 Optional Desktop Charger Informasion Voltage Diagram Type Type of GEN Type of GEN and EIA/TIA version NJM3403AV M1-band of GEN and EIA/TIA version G W-type of GEN Type 2SC3585 R44 Q403 2SC5107 O Band of ETS/CEPT version N-type M1 440-470 MHz-band Page 13713IZ-C1U
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