Icom IC-F3GT, IC-F3GS service manual Voltage Diagram

SECTION 12 VOLTAGE DIAGRAM

AFOUT

AFOUT

DISCIN

DISCIN

VCC

VCC

T5

T5

J5

R5

R5

S5

S5

AXN330C038

5V

5V

16

SCK

R5

R5

S5

S5

15

OPV1

17

SI

14

OPV2

18

SO

13

OPV3

19

CIRQ

BUSY

R5

R5

12

GND

S5

S5

20

CCS

11

OPT3

21

REM

10

OPT2

22

AFOUT

VCC

VCC

VCC

9

OPT1

Q15

VOLMIN

to Optional unit

23

DISCIN

7.23 V —

8

SIGOUT

R97

R115

2SB1132 R

24

RXMUTE

RMUTE

R177

R95

220 k

120 k

TX: 0 V

TX: 0 V

7

MOWN

CPU5

1 k

C125

1 M

IC4

C212 R98

1.94 V

RX: 4.62 V

RX: 3.96 V

IC3C

25

BEEPOUT

R266

C132

0.0022

BU4066BCFV

0.01

180 k

Q16

6

BUSY

R131

15 k

0.0056

NJM2902V

R114

C135

1.94 V

10

6

1

14

XP6501

26

AFONOP

470

8

7

I/O

VDD

R168

22 k [OTHER]

180 P

R120

6

5

4

2

O/I

CONT.A

13

10 k

C213 R107

5

AUX

TX: 3.69 V

9

C217

C124

C126

5

R257

3

12

33 k I

13

R117

68 k

C304

2.2

150 k

27

MICMUTE

MMUTE

D

RX: 5.01 V

C134

0.1

0.01

0.0027

1

4

O/I

CONT.D

11

14

1.5 k

R

0.047

I/O

I/O

R99

D26

4

MICIN

220 P

IC3B

5

CONT.B

O/I

10

R44

12

R178

2

PTT

R105

R94

C214 R113

12 k

DAN202K

28

VCC

NJM2902V

6

CONT.C

O/I

9

R112

10 k R

R116

3.9 k

390 [OTHER]

R176

R93

1 M

7

8

18 k [OTHER]

0.033 68 k

IC3D

1

2

3

3

MICOUT

Q17

C209

470 I

VEE

I/O

1 M

20 k A, D

1 k

29

5V

0.1

C

3.9 k

27 k

NJM2902V

TX: 4.84 V

2

PTTOUT

UN911H

R108

R169

R170

R159

C137

RX: 0 V

R96

30

GND

C133

150 k

C286

C131

C128

C136

100 k

0.027 [OTHER]

47 k

10 k R

10 k

0.033 I

1

PTTIN

R137

0.1

R104

R109

0.0022

0.01

1

12 k [OTHER]

0.0056

C147

C154

R130

10 k

100

100 k

R100

C129

R145 C139

R121

C140

0.047

10

100 k

1.8 k

15

1 M

0.1

1 k

0.1

MIC

TX:

VOLIN

VOLIN

VOLIN

VOLOUT

RX:

C223

C224

VOLOUT

VOLOUT

VOLOUT

0.01

0.01

AFOUT

AFOUT

AFOUT

AFOUT

MICIN

MICOUT

C148

C215

TX: 5.0 V

RMUT

TONE CTCSS SIGOUT

AFONOP

D34

TONE

0.01

BEEPOUT

0.1

RX: 0.01 V

TX: 0 V

CPU5

VCC

5V

T5

R5

S5

R125

R171

MMUT R5C

AFON

RX: 4.99 V

MA8056 M

J6

E only

27 k

47 k

BM02B-ASRS-TF

1

SP

R265

BDET

100 k

2

Q18

SQLIN

5.06 V

C302

CPU5

2SB1132 R

CPU5

C164

5.01 V

R182

0.1

0.001

VCC

VCC

VCC

NTCCM20124AG473JCT

5V

5V

CPU5

R5

5.02 V

L33

S5

[OTHER]

IC10

1.0 H

CTCIN

TX: 4.97 V

TX: 0 V

4

5

R150

C123

Q21

M62363FP-650C

RX: 0.03 V

RX: 5.01 V

R135

VOUT

VIN

470

0.001

REMO

MC1

2SA1577 Q

10 k

1 VIN1

VIN8 24

R103

R215

REMO

CTCIN

MTONE

T5

T1

2

VOUT1

VOUT8

23

R148

C197

12 k

100 k

LVIN

BDET

CPU5

CPU5

DTMF

CPU5

KUC3523-040245

C174

C158

TEMPS

PTT

MIC

Q22

T2

3

VOUT2

VOUT7

22

100 k

0.1

SD

MIC

22

Q19

10

T3

4

21

2SA1577 Q

TK11250BM NJM2870D

T4

5

VIN2

VIN7

20

IC11

R146

R216

C231

R181

C232

R144

XP6501 AB

VDD

GND

100 99

89 88 87

VOLIN VOLOUT

R260

C294

R261

N. BYPASS

DAST

6

LD

RESET

19

S-80942ANMP-DD6

12 k

100 k

0.1

100 k

0.1

98

97

96

95

94

93

92

91

90

22 K

AFOUT MIC

6

5

4

5.01 V

0.12 V

SCK

7

18

10 k

33

10 k

SO

8

CLK

VDAREF

17

C163

CONT

DI

DO

R147

X2

GND

9

VIN3

VIN6

16

0.001

Q20

10

15

1

5

12 k

CR-663

PTT

S3

R141

R139

1

2

3

11

VOUT3

VOUT6

14

2

OUT

CD

4

D14

C195

SWITCH

JPM1990-2711R

SP

CPU5

VCC

5V

T5

R5

S5

4.7 k

DTA144 EU

IC6

3 2 1

12

VOUT4

VOUT5

13

3

VDD

NC

P81/AN1 P82/AN2 P83/AN3 P84/AN4 P85/AN5

P86/AN6 P87/AN7

AVREF

VTREF

TONED

TONEM AVCC PE3/SEG52/CL1

4.7 k

VIN4

VIN5

VSS

MA77

56 P

R102

TX: 0.85 V

TX: 5.01 V

RX: 5.01 V

C162

RX: 0.86 V

C161

4.44 V

C230

C144

C196

10

FRQCOM

C193

R101

C194

R143

0.01

0.01

C156

CTCSS DEV

CTCIN

0.022

0.001

470 P

8 P

1 M

15 P

VIN

1

C155

DBAL

PB0/AN0

TP76N00N-15F-10KA-2251

T5C

R5C

R134

C159

C160

S5C

0.01 D

10

R153

R152

R154

C244

C236

DET

5V

2

AVSS

VOLOUT

0.1 [OTHER]

3

VOL/ PWR

2.2 k

470 P

0.01

470 k

470 k

470 k

0.01

0.01

4

TEST

X2

SWITCH

VOLIN

VCC

BDET

DET

TONE

C309

5

X1

6

VSS

0.1

IC7

CPU5

CTCIN

CTCSS

ESDA

ESCK

XIN

7 OSC1

D only

S5

S5

HN58X2432TI [OTHER]

XOUT

8

OSC2

A

R276

R164

R226

R142

T5

T5

HN58X2464TI Q

RESET

9

RES

(VR)

R5

R5

10 k

100 k [F3GT] only

1 k

10

C282

100

R220

D only

8

VCC

A0

1

CSIFT

NMI

IC8

470 P N

270 k

MTONE

DTMF

REM

NWC

11

P20/IRQ4/ADTRG

0.001 [OTHER]

KR0

7

WP

A1

2

SCK

SCK

12

P21/SCK1

HD64

J2

HV

R132

KR1

DTMF

R218

6

SCL

A2

3

SI

SI

13

P22/SI1

HSJ1122-010010

470

KR2

3.8 V

Q42

5

SDA

VSS

4

SO

SO

14

P23/SO1

OPT

KR3

120 k

DTC144EU

DAST

DAST

15

P24/SCK3

D only

CLIN

16

P25/RXD

EXT.MIC

MIC

R219

5

4

R228

CLOUT

CLOUT

17

P26/TXD

0.8 V

Q36

R221

120 k

10 k

C245

R232

PLST

18

P27/IRQ0

R174

R140

330 k

1

2

R213

0.01

CLIN

1 k

NOIS

19

P17/IRQ3/TMIF

D27

15 k

100 k

S2

2SC4116 GR

R275

470

CIRQ

20

P16/IRQ2

CLIN

JPM1990-2711R

C248

IC14

3

4.7 k

R225

R234

PLST

BUSY

21 P15/IRQ1

RB706F-40

C165

C166

UP

DN

R239

0.01

TC7S66FU

D only

100 k

10 k D

NOIS

CCS

22

P14

KS4

0.001

0.001

1 k

D only

22 k [OTHER]

OPT1

23

P13/TMIG

AFOUT

CLOUT

KS3

T5

CTCSS

R231

CIRQ

OPT2

24

P12/TMOFH

SP

IC13

1.5 V

22 k

CTDA2

BUSY

OPT3

25

P11/TMOFL

KS2

CCS

P50/WKP0/SEG1 P51/WKP1/SEG2 P52/WKP2/SEG3

EXT.SP

CLONE

Q31

1

2

3

P0

KS1

R5

TC7S66FU 5

1

0.4 V

R230

OPT1

KS0

3

R206

OPT2

4.92 V

DTC144TU

IC12A

4

C250

DTCS

1.2 V

56 k

CTDA1

OPT3

P10/TMOW VSS V3 V2 V1

VCC PA3/COM4

PA2/COM3

PA1/COM2

PA0/COM1

J3

470 k

C299

R238

R268

0.01

R229

HSJ1456-01-220A

NJM2904V

R211

2

470 P

1 k

4

5

6

P1

R190

100 k

IC12B

0.4 V

180 k CTDA0

C167

C168

C169

22 k

R192

8

120 k

C201

R198

R199

4.8 V

47 P

0.001

0.001

22k

3

NJM2904V

Q35

26 27 28 29 30 31 32 33 34 35 36 37 38 39

R191

1

0.1

18 k

47 k

6

DTCS

4.4 V

R235

22 k

2

7

2SC4116 GR

R227

680 k

CONT

R243

R242

R241

4

R203

R202

1.4 V

5

47 k

7

8

9

P2

C222

R197

C200

R224

47 k

47 k

1 M

1 M

1 M

1.0 V

BATT

0.1

220 k

0.033

8.2 k D

C227

CTCSS

4.96 V

3.8 V

22 k A

C228

C219

4.5 V

27 k [OTHER]

0.047 D

820 P

0.0082

GND

R200

0.1 [OTHER]

C202

R212

C198

47 k

0 V

1.2 V

*

0

#

P3

R207

R194

R195

R196

R272

C283

C173

C305

0.01

68 k

2.2

R193

47 k

100 k

100 k

100 k

100 k

0.001

47

470 P

4

3

Q38

R165

100 k

D only

E only

C249

C221

C225

R267

C216

DTC144EU

100 k [F3GS] only

C199

0.01

0.039

0.0047 I

2

47 k R

0.1 [OTHER]

0.1

R240

0.0068 [OTHER]

5

1

100 k [OTHER]

0.22 D

DUSE

R273

1 k

S1

KS4

Q40

100 k

D only

BDET

BDET

S1

XP1213

JPM1990-2711R

COM4

COM3

COM2

COM1

12 - 1