Icom IC-F21S service manual DTC144EU

VCC

T5V

VCO5V

EP2

C48

VCC

VCC

Q10

0.001

L1

T5V

T5V

L2

2SC5085 Y

VCO5V

C260

C34

L6

14 nH

14 nH

ANT

R2

4.1 V

0.001

47 P

C49

C45

R13

EXCCL3225U

VCO5V

100

C6

47 P

R11

0.001

EP3

0.5 P

220

10

W14

C9

C8

L3

C5

C3

R1

R19

R16

C35

0.001

47P

4 P

7 P

82 k

C61

C60

1.8 V

R24

R22

100

10 k

3.7 V

47 P

4.7 V

L30

0.82 H

3.7 V

100

3.3 V

220

3.5 V

0 V

0 V

47 P 0.001

0 V

C20

5 Y

C37

C21

C18

0.30-0.9-9TR

C46

C40

0.01

W2

0.001

47 P

D1

R30

R25

R23

L11

0.001

R17

C30

L5

C12

L4

R26

470 P

L10

R15

1SV307

330

470 P

68 k

330

C43

68 k

27 nH

R20

100

L9

R14

R12

L8

0.001

C24

0.4-0.9-2TL

0.001

14 nH

C7

C41

27 nH

2.1 V

56 k

C255

470 P

47 k

1.3 V

15 nH

1 k

12 k

12 nH

Q2

39 P

0.001

12 P

D3

0 V

C31

0.001

Q1

5

C62

C39 1.2 V

470 P

2SK2973

R3

5

1

5 P

MA77

C29

R8

R5

2SK2974

68 H

0.5 P

Q8

C44

R21

15 k

R33

Q9 XP1214

2

C36

C33

12 P

C28

100

10

DTC144EU

3 P

C42

33

220

Q7

C38

10 P

10 P

5 P

R10

C26

R7

MP5

D2

Q6

Q4

Q3

C17

C13

V

4

3

12 P

D4

5 P

4.7 k

0.001

RB706F-40

2SC5107 O

2SC5107 O

Q5

MA77

2SC5107 O

2SC3585 R44

4.7 k

36 P

12 P

7 V

R18

C14

2SC5107 O

R9

R6

C25

C23

2.4 V

4.7 k

10 P

C15

33 k

3 3k

0.001 20 P

0 V

R4

R27

1LO

0 V

0.001

1 k

10 k

C47

2.0 V

C27

C251

47 P

470 P

R5V

0.001

R5V

0 V

S5V

S5V

4.6 V

S5V

S5V

RSSI

RSSI

RSSI

EP8

W8

R77

R69

C249

0 V

C97

R55

Q14

R83

0 V

R66

0.6 V

DTA144EV

1 k

47

C111

L22

0.1

Q33

R228

R227

0.1

2.2 k

100

4.5 V

C124

10 k

C130

R84

C129

L26

C126

R81

R80

R79

C125

R78

5 P

10 nH

R229

2SK1829

470 k

180 k

1.6 V

0.01

1k

12 P

1.0 H

5 P

470

12

470

10 P

C119

10 k

0.001

C112

0 V

C108

C107

R64

1.8 k

D18

C102

L20

L19

C98

R58

4.4 V

C123

D14

0.001

4.6 V

47 P

0.001

MA2S111

1.5 P

14 nH

14 nH

0.01

R56

Q16

22 P

D15

0.5 P

HVU350B

100 k

150 k

R85

0 V

C106

D12

2

3

10 k

C132

3SK272

0 V

C115

C113

0 V

Q15 3SK293

4

0.001

1

L24

L23

0.3 P

8 P

3.1 V

3 P

HVU350B

R60

1

1.0 V

R76

C120

2.0 V

R65

L21

R61

5

R54

R86

R82

L25

10 nH

C117

10 nH

C105

100

R59

C96

R57

C133

4.7 k

8 P

220 k

10 nH

C104

1 k

10 k

270

47 k

33 nH

R74

R72

8 P

R70

D13

3 P

R62

120 k

0.1

68 k

7 P

5 P

C128

C127

C122

220 k

220 k

C116

220 k

HVU350 B

C110

C109

R68

220 k

D10

C100 D9

C99

IC2

0.001

47 P

5 P

6 P

C114

0.001

330

MA77

8 P

MA77

9 P

TA75S01F

R75

C118

R73

R71

47 P

R63

C103

47 P

TXC

R239

T4

10 k

47 P

47 P

10 k

T3

T2

10 P

T1

10 k

47 P

T4

100 k

C121

VCC

VCC

VCC

S5V

S5V

S5V

AF ON

+5V

Q19

IC4 TA7368F

IC6 BU4066BCFV

R118

R115

AF ON

10

3.4 V

2SB1132 R

7.5 V

1 NC

POUT

220 k

120 k

2

VCC

PWGND

9

1

14

C176

R119

C174 180 P

AF ON

3

NC

PREGND

8

I/O

VDD

0.0033

150 k

R116

4

VIN

PHASE

7

2

O/I

CONT.A

13

R123

33 k

13

R113

4.8 V

6

5

4

R104

R243

5

RIPPLE

NF

6

R102

3

O/I

CONT.D

12

R124

14

470

R111

R110

R105

10 k

1 k

10

4

11

120 k

12

3.3 k

D22

R103

I/O

I/O

27 k

18 k

R109

2.7 k

5

CONT.B

O/I

10

IC5D

68 k

MA2S111

1

2

3

C167

33

C163

6

CONT.C

O/I 9

C177

R120

0.047

100

7

VEE

I/O 8

RMUT

C179

R125

C178

R122

R121

2.2

39 k

R117

NJM13403V

R114

C173

Q20

MMUT

R5C

3.3 k

1

1 M

TONE

10 k

C175 0.0056

100 k

R112

C172

R238

C171

R107

R106

C169

C168

10

47 P

0.047

0.01

0.8 k

10 k

C170

R242

0.1

100 k

XP6501 AB

C166 C165

C164

VOLIN

BEEP

2.1 V

2.2 k

47

AFON

0.22

1 k

0.1

3.3 k

6.8

0.22

VOLOUT

C248 0.1

VOLOUT

VOLOUT

AFOUT

AFOUT

AFOUT

R153

BDET LVIN

RSSI

SDEC

CDES

UNLK

NOSE

F2 F1

100 k

BATV

IC9 M62363FP-650C

L29 39 H

4.9 V

4.8 V

CPU5V

R165

1

24

DET

C202

R151

R149

70

VIN1

VIN8

C201

C191

T1

2

23

SQLIN

0.001

47 P

R157

NTCCM20124AG473JCT

1 k

VOUT1

VOUT8

0.1

TEMP

R241

R212

T2

3

22

DEV

12 k

R143

VOUT2

VOUT7

15k

4

21

IC8 S-80942ANMP-D6

R160

R152

REMO

1 k

100 k

5

VIN2

VIN7

20

100 k

DAST

6

VDD

GND

19

+5V

5

1

10 k

C197

C195

OUT

64 63

62

61

60 59

58

57

56 55 54

53

52 51

50 49

SCK

7

LD

RESET

18

CD

2

22

68 P

OSC1

R154

C192

SO

8

CLK

VDAREF

17

REF

C200

4

NC

VDD

3

12 k

X3

10

OSC2

100 k

0.1

3 NC

NC

NC

PB0/AN0 PB1/AN1

PB2/AN2

PB3/AN3

PB7/AN7

PB6/AN6

PB5/AN5 PB4/AN4

P17/RQ3

P16/RQ2

P15/RQ1

P14/RQ0

NC

NC

NC

46

CLO

T4

11

VOUT4

VOUT5 14

VSS

R156

CPU5V

9

DI

DO

16

C199

C196

D16

1

48

T3

10

VOUT3

VOUT6 15

BAL

0.001

470 P

MA77

R158

R155

14.7456 MHz

2

NC

NC

47

1.1 V P-P

12

VIN4

VIN5 13

0.027

R176

R159

1 M

4

AVCC

P22/TXD

45

CLI

C203

REF

BAL

DEV

DET

22 k

12 k

C194

C193

X1

5

X2

P21/RXD

44

ESDA

0.01

R177

15 P

22 P

VCL

6

X1

P20/SCK3

43

AFON

22 k

RES

RES

7

VCL

IC7

P87

42

TLED

R204

SDEC

CDEC

S5V

CENC2

C198

TEST

8

RES

P86

41

RLED

390 k

OSC2

10

VSS

HD6433664A24FP

P84/FTIOD

39

TXC

VSS

9

TEST

P85

40

33

R182

47 k

R178

NWC

CSFT

R163

13

Q6

IC15

0.1

OSC1

11 OSC2

NC

P52/WKP2 P53/WKP3

P54/WKP4 P55/WKP5/ADTRG

P10/TMOW

P11

P12 P56/SDA P57/SCL P74/TMRIV

P75/TMCIV

P83/FTIOC

38

56 k

CENC1

1 k

NC

P76/TMOV

NC

NC

R203

4

1

EXST

VCC

12

VCC

P81/FTIOA

37

PTT

2

4

56 k

EP6

4.9 V

CENC0

RMUT

5

Q1

STR

2

SO

13

P50/WKP0

P80/FTCI

36

EXST

3

1

Q2

D

14

35

05

11

IC5A

2.5 V

Q29

R179

7

Q3

CLK

15

15

NC

NC

34

PLST

NJM13403V

2SC4116 GR

180 k

14

Q4

OE

16

NC

NC

33

k

R180

Q5

C232

R185

47 k

S5C

12

Q7

BU4094BCFV

17 18 19

20 21

22

23

24 25 26

27

28 29

30 31 32

R146

R145

0.0012

27 k

C220

R181

C218

R5C

11

Q8

R187

100 k

100 k

820 P

47 k

0.0082

T5C

9

QS

1

470

C219

R189

R184

R164

10

QS

100 k

5

R188

47 k

0.1

1 k

8

4

3

470 k

R192

IC13

C222 0.047

Q28 DTC144EV

R161 10 k

18 k

TC7S66FU

2

1.8 V

4.5 V

VCC

A0

CPU5V

R199

6

R186 150 k

ESDA SCK

R200

R201

R190

5

7

0 V

DTCS

8

1

1 k

1 k

C224

47k

IC12B

7 WP

A1

2

R233

0.033

NJM12904V

6

SCL

A2

3

C247

R234

100 k

25

R191

Q30 XP1213

CTCSS code transmitting

5

SDA

VSS

4

0.1

100 k

47k

4

3

3.1 V P-P

R202

IC11

SENC0 SENC1

CBI0 CBI1

SENC2

SENC3

CENC0 CENC1 CENC2 CBI2 CBI3

SCK SO

BEEP

C216

2

100 k

HN58X2416TI

PUSE

0.01

5

1