Kenwood CX-403W Schematics

22K

22K

22K

22K

10K

4.7K

0V
0V

0V
0V

5.0V

2.5V

3.0V

2.5V

2.5V

2.5V

2.5V

2.5V

2.5V

2.5V

2.5V

2.5V

2.5V

1.8V

5.0V

5V
0V

0V

4.8V

5.0V

5.0V

5.0V

5.0V

5.0V

0V

5.0V

0V

5V

5.0V

5.0V

0V

8.0V

3.2V

3.8V

3.8V

TE

2.4V

2.4V

3.4V

0.1V

0.8Vp-p

1.2Vp-p

3.5V

FE

0V or 5.0V

2.5V

3.2V

5.0V

0V

5.0V

5.0V

1.4V

2.5V 5.0V

4.0V

4.0V

2.5V

4.0V

4.0V

4.0V

4.0V

4.0V

4.0V

2.5V

2.5V

2.5V

5.0V

2.5V

2.5V

2.5V

2.5V

0V

0V

7.5V

2.5V

3.2V

3.2V

IC2

(X32-5240-0X)

IC1

IC4

IC5

CN1

CN2

D3

D4

S2

S1

IC6

(2/2)

(1/2)

IC6

Q3

Q4

Q2

Q5

S3

DOWN & LIMIT
SWITCH

M

M

LOADING & SLED
MOTOR

SPINDLE
MOTOR

CN5

(X25- )

to

PICKUP

OPTICAL

IC1 : AN22002AA
IC2 :
IC4 : BA5824FP

IC6 : NJM4580M1
Q1 : MCH6101

Q2,5 : DTC124EUA
Q4 : 2SA1362(Y)
D1,4 : DAN202U
D3 :

MA8051-L

CD SIGNAL
PROCESSOR

OP

P ON SW

D 5V

A 8V SW

AMP

DPU1 (X92-)

DM2 (X92- )

DM1 (X92- )

DET.SWITCH

SWITCH

LOAD DET.

S2 :

bult in u-COM.

AMP

RF

D1

Q1

APC

SW

S1 :

12cm DISC

∗

S4

Q3 DTA143XUA:

B LINE

SIGNAL LINE

4ch BTL
DRIVER

DA204U

D2 :

TA78L05FIC5 :

MN662774KJ2

504948474645444342414039383736

35

34

3332313029

282726

25

24

23
22

21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1

7677787980

81

82

838485

868788

89

90

91

92

939495

969798

99

100

51
52
53
54

55
56
57
58
59
60

61
62
63
64
65

66
67

68

69

70

71
72
73
74
75

STOUT

TRCRS

FLAG

IPFLAG

FCLK

CLDCK

EFM or CK384

DVSS2

AVSS2

AVDD2

TOFS

FOD

TRD

KICK

ECS

ECM

PC

TVD

TRV

VCOF2

VCOF

PLLF2

PLLF

IREF

DSLF

DRF

ARF

VREF

RFENV

NC
NC
NC

TE
NC
NC

FE

TBAL
FBAL

AVDD3

AVSS3

NC
NC

LDON
VDET

RFDET

OFT

BDO

73/74SEL

DRVMUENCNC

TEST

ASEL

PON

SEARCH

EQCNT

SW3

AMUTE L

AMUTE R

CD-RW

RST

MECHASEL

MSTOP

LDCNT

DAT A

CLK

HOT

AVREF

OUT R

AVDD1

OUT L

AVSS1

CSEL
TEST1
TEST2
IOSEL

NRST
BCLK
LRCK
SRDATA
SUBC
SBCK
DQSY
DEMPH
TX
PSEL
MSEL

SSEL
DVDD1

X1

X2

DVSS
XSUB1
XSUB2
DVDD2
NC
NC

SMCK

STLD

PCK or DSLB

1
2

3
4

5
6

7
8

9

10
11
12
13
14
15
16

D
B

C
A

GND
LD

PD
VR

VC

VCC
F
E
FCS+
TRK+
TRK­FCS-

22

21

20

19
18

17
16
15
14

13
12
11
10

9

8

7

6

5
4
3
2

1

D OUT

12EJE SW

LOS SW

CLK

DAT A

8EJE SW

NC
BU+5V
D GND

MUTE R

MUTE L

MRST

MSTOP

A +8V

Lch

A GND

Rch

LO/EJ

MOTOR

S 7.5V
S GND

LOE/LIM SW

16.93MHz

X1

100K

C85

0.1

100K

R54

0.1

C35

220K

R38

0.015

C25

0.1

C29

R37

470

C28

1

1

C26

150

R36

R32

68K

47K

R5 360

28

27

CP1 100

4.7K

R49

1

2

8

3

4

7

6

5

C79C80

330

R108

330

R107

20K

R121 R117

20K

68P

C77

20K

R125

R118

20K

R122

20K

68P

C78

R126

20K

R47
10K

0.1

C51

2200P

CP2 100

13

15

16

47

93

94

86
89
91

87

18

17

12

11

86

87

89

94

93

91

10

2
1

4
3

11

12

15

19

29

30

32

33

34

35

36

14

LOAD
SLED+

SLED-

EJECT

SPDL-

SPDL+

1K

R46

0.1

C33

FE

C1 1

2.2

2200P

470P

C71

16

15141312111098765

4

3

2

1

GND

NRFDET

OFTR

C.OFTR

BDO

C.BDO

3TOUT

C.EA

ARF

C.AGC

RFIN

RFOUT

RFN

VCC

LD

PD

17

18

19

20

21

22

232425

2627282930

31

32

VREF

VDET

TEBPF

TEOUT

TEN

FEN

FEOUT

GCTL

TBALFECADB

FBAL

1

3

2

3300P

6800P

19

0.033
C10 4700P

1000P

C23

ARF

C8

10K

R10

10K

R11

9.1K

R12

15P

C5

2P

RF

0.1

C7

R15

820K

43K
C16

150P

R17

3.9K

R18

TE

22K

R16

4700P

C14

0.047

C15

C17

4700P

12

51K

R19

220P

C18

92

C19 0.1

R20 100K

10

11

R21 360K

R6 2.7K

R3 2.7K

27

28

293132

0.047

C46R52

IOP+

10

R9

IOP-

+

10u6.3

C4

6

1

31
32

29

6
1

0.022

C24

3.3K

R102

3.3K

R101

0.1

C67

5.6K

R103

0.1

C68

5.6K

R104

R218

0.1

C55

C13

C11

C12

2.2

C3

36K

4

15

C20 0.1

R202

100K 2200P

C89

47

2.2

C21

92

R234 10K

R233 6.2K

C6

1

Q1

R34

C41

30

30

100K

R214

470P

C72

+B

282726

25

242322212019181716

15

VCC

TR. IN

VREF

SL. IN

LO/EJ

LD/SLED

GND

VCC2

SLED-

SLED+

TRK+

TRK-

1

2

345

678

9

10

11

12

13

14

BIAS

FC. IN

VREF

SP. IN

GND

MUTE

GND

VCC1

SPDL-

SPDL+

FCS-

FCS+

ECM

11

12 17

18

14
13

FCS-

15

FCS+

TRK-

TRK+

16

ECSKICKTRDFOD TVD TRV

C44

10K

10K

33K

33

32

10K
C42

13K

36

1500P

R84

R82

R79

0.01

R80

R81

10K

R76

0.01

C40

R74 12K

R75 33K

29

30

R71 11K

R73 47K

10K

R70

1500P

C39

35

34

5
4

4

5

R40 13K

BU5V

BU5V BU5V

BU5V BU5V

BU5VBU5V

BU5V

BU5V BU5V

BU5V

D5V D5V

D5V D5V D5V

D5VD5V

D5VD5V

D5V

D5V

D5V

A8V A8V

S7.5V S7.5V S7.5V

S7.5V

S7.5V

S7.5V

SMCK

STLD

STOUT

FLAG

IPFLAG

FCLK

CLDCK

TRCRS

TOFS

BDO

GCTL

FBAL

C2 1

TBAL

VDET

OFT

RFDET

X32-5240-00
X32-5240-01

S4

YES

NO

C69

0.1
10u16

C70

+

OUT

GND

IN

A5V

A5V

A5V

UNIT No.

RFENV

A B C D E F G H I J

1

2

3

4

5

6

7

CAUTION : For continued safety, replace safety criti­cal components only with manufacturer's recom­mended parts (refer to parts list).

Indicates safety critical components. To reduce the
risk of electric shock, leakage-current or resistance
measurements shall be carried out (exposed parts are
acceptably insulated from the supply circuit) before
the appliance is returned to the customer.

• DC voltages are as measured with a high imped-

ance voltmeter. Values may vary slightly due to
variations between individual instruments or/and
units.

K L M N O P Q R S T

1

SYNTHESIZER UNIT (X14-9160-10) (A/2)

22K

1u50

BU

Q200

D200
D205

Q201

+

0.01

C205

D201

+

C203

100u6.3

R204

R203

4.7

4.7

1/2W 1/2W

2

R205

BU

C206

Q200,201

BU5V AVR

3

RESET

R208

4.7K

C207

+

4.7u16

IC21

4.7K

R206

5.0/2.5V

2

3

VDD

NC

R207

2.2K

1

4

OUT

VSS

R209

1K

IC10 : M24C01-MN6T
IC11 : 703035AYGC-J10
IC20 : BA44W12ST
IC21 : S-80841CNNB
IC30 : HA12187FP
IC40 : LM7001JU
IC41 : HA12181FP
IC52 : LC75386NE-R
IC90 : TA8275H

+5V

+5V

+

C204

3300u6.3

+5V

28

5V
0V

+5V +5V

R120

47K

R125

1K

C102

22P

C104

22P

C106
1u50

Q100

+

2.2K

R128

0/5.0V

0/5.0V
0/5.0V

5.0/0V

X100

32.768kHz

X101

6.29MHz

P-ON 5V

26

3.0V

RESET

4

67845

R611

R148

48

50

VSS

A

C109

100K

1K

51

52

EJECT

LED IND

5.0V

0.1

0.01

C108

5.0/0V

5.0/0V

0/5.0V

LED IND

+5V

13

14

53

54

9

12 13 1410 11

DO

CLK

ENC UP

ENC DOWN

BU

ILL

R210

1 1/2W

1 1/2W

+11V

LAMP +B

+12V

ILL +B

+5V

+5V

VDD

47

VSS

48

50

BU

Q204

Q202-204

KEY ILL+B
AVR

Q202

430

R212

Q203

D206

0.01

C208

D202

330

R214

D203

Q205-207

LCD
BACK-

+B AVR

Q206

2.2K

0.01

C209

LIGHT

C212

R215

R216

0.1

2.7K

R213

Q205

D207

3.3K

123

ILL GND

5

R908

22K

R909R905

22K

BU

ILL-CONT

C210

+

4.7u16

BU

Q209

R217

Q207

ILL-CONT

6

R907

22K

22K

C211

+

4.7u16

Q210

R218

1.2K

7

Q100,202,401,402
Q101-103,105,602
Q104 : DTA114EUA

Q200 : 2SA2057
Q201,203,206,300,

605,606,900 : 2SC4081(S)

+5V

5V
0V

0/5.0V

26

P ANT

27

PON D

28

PON A

29

N.C.

30

N.C.

31

RESET

32

XT1

33

34

35

36
37

38
39
40

41
42
43
44
45
46
47

48
49
50

51

15

CE

XT2

REGC

X2

X1
VSS

VDD
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
N.C.
ILL DET

LCD BL
N.C.
KEY ILL

51

0/5.0V

10K

Q104

12

DI

32.768kHz

6.29MHz

LED IND

10K

252423

R118 1K

R119 1K

24

25

SYS ON

BUS DO

EJECT

R173 1K

R172 100K

52

: 2SB1443
: 2SA1576A

R100

R112 1K

23

BUS DI

5V

0.5V

5V
0V

R176 1K

R175 1K

53

100K

22

AUX DET

535255

R174 10K

54

R114 1K

21

ENC DOWN

54

R177 10K

Q207 : UMC3N
Q400 : 2SK536

Q600
Q601
Q603,604,607

21

20

19

R102 47K

R116 1K

R115 1K

0/5.0V

19

20

BU DET

H MUTE

ACC DET

5V

0.5V

VSS

VDD

ENC UP

N.C.

N.C.

56

586059

57

5.0V

R185

0.01

+5V

C118

R186 100K

470

R187

BU

R103 100K

R104 100K

CD SW2

CD SW4

1K

R156

R178 100K

18

1K

C115

R179

:
:
:

+5V

17

IC/VPP

5V
0V

R158

0.01

470

2SB1277
DTA124EUA
DTC114EUA

15

R107 1K

R109 1K

15

16

14

N.C.

N.C.

LCD CE

5V
0V

IC11

SYSTEM
u-COM

CD SW1

61

5.0/0V

1KR180 100K

R160

0.01

C116

470

R181

+5V

D200,600 : 1SR139-400
D201 : HZS6C3L
D202 :
D203 : MA4110-L
D204 : MA4082-L
D205-207,601,901

D300,301 : MA4075-L
D400 : IMSA-6801

+5V

12

13

14

LCD CLK

62

5.0/0V

1K

R166 100K

R110 1K

13

LCD DO

CD MUTE

62

5V
0V

61

10K

R105

R111 1K

12

LCD DI

CD RST

63

1K

R162

63

60

+5V

R123 10K

0/5.0V

10118

N.C.

5V
0V

CD STOP

64

0/5.0V

R163 1K

64

MA4130-H,-M

: 1SS133

9

8

10

R124 10K

0/5.0V

9

BEEP

P STBY

P MUTE

5V
0V

0/2.5/5.0V

CD MOTOR

CD LO/EJ

66

65

0/5.0V

R164 1K

R165 2.2K

65

66

59

7

VSS

67

0/5.0V

1K

R159

67

R167 4.7K

+5V

R121 1K

5.0V

634

5

VDD

N.C.

CD SW3

68

69

D401 : DAN202U
D500 : DAP202U
D501
D602,603
D902

4

5

R122 1K

EV CLK

EV DATA

N.C.

REF CON

70

5.0/0V

71

5.0V

N.C.

5V
0V

AVDD

+5V

2

CD CLK

AVSS

72

+B

5V
0V

1

N.C.

AVREF

73

5.0/0V

STZ6.8N

:

HZS6B1L

:
: RM10ZLF

5V
0V

5V
0V

TYPE1

74

0V

100K

R168

SIGNAL LINE

B LINE

R129

5V

CD DATA

0V

PLL CLK

5V

PLL DO

0V

N.C.

EPR CLK

N.C.

EPR DATA

PLL CE

5V

EV CE

0V

NAVI-R

TEST

N.C.
N.C.
N.C.
N.C.

TYPE4

0-5.0V

H.P

0-5.0V

HANDLE

N.C.

0/4.0V

AM-SD

0/4.0V

FM-SD 80

0.5-3.0V

S METER

ST

N.C.

5.0V

TYPE3

TYPE2

75

0/2.5/5.0V

100K

R170

(E39-0421-05)

100
99
98

97
96

95
94
93
92

91

90
89
88
87
86
85

84

83
82

81

80

79
78

77
76

CN11CN10

5.0V

5.0V

R152

R151

R150

5.0/0V

R171

R131

100
R132 1K
R133 1K

R137 1K

R139 1K
R135 1K
R136 1K

R143 R138

1K 100K

TH90

1K

1K

1K

1K

R182

100K

C117 0.01

+5V

+5V

60

21

SW2

D OUT

R154

R155

+5V

100

4.7K

R126

4.7K

R130

96

94

TEST

R184
100K

R146

10K

R147

R153

1K

C110

0.01

C111C112

100K

0.01

100K

0.01

C113

Q105

R161

100K

S-METER
OUTPUT
DETECTOR

R183 100K

61

2

100

34

CLK

SW1

DATA

BU

R906

1M

21

+5V

MUT

BU DET

2

+5V

100

R157

100K

C114

6

620

0.01

59

SW4

0.01

DGND

99
98

93
92

+5V +5V

83

81

79

78

+5V

+5V

10

85

BU 5V

DGND

0.01

C100

62

12

MUTE L

MUTE R

5.0V

856

63

13

M RST

R117

10K

R108

10K

1

64

M STOP

+5V

7

IC10

2

EEP
ROM

+8V+8V

AUDIO+ B

to CD MECHANISM (X92-4620-03)

Q605

96

3

+5V

Lch

4

AGND

D602

6.2K

R605

R604

22K

0.1

6.2K

C604

R608

94

5V
0V

+8V+8V

+8V

D501

666765

2019

LO/EJ

22

21

SW3

SRV +B

MOTOR

SRV GND

171615141197

18

Rch

U V W X Y Z AA AB AC AD

C908 0.047

FR+

C600 0.068

GND

STBY

VCC
GND

SVR

FRI

AUX
GND

VCC

MUTE

GND

C520

4.2V

LF 3C2

LF 3C3

4.2V

4.2V

RF 3C2

RF 3C3

4.2V

C521

POWER SUPPLY

957

FR-

RL+

C909 0.047

FR-

C601

3.3u50

Q602

R602 1.2K

1/2W

R603 1.2K

1/2W

C913

0.022

2
4

6

13.2V

8

10

8.3V

12

RLI

14

16
18

20

13.2V

22

4.2/0V

24

C518

330P

10u16

+

33

LF OUT

LT OUT

LR OUT
LA VSS

LZCLP

5V

DVSS

0V
5V

0V

MUTE

RA VSS

RZCLP

RR OUT

RF OUT

RF IN

RT OUT

16

C519

10u16

330P

12 14 181720

1311

C910 0.047

RL+

Q600

+

C914

0/5.0V

C903

0.1

4.2V

LF IN

CL

DI

CE

TIM

4.2V

+

RL-

3300u16

C904

22u16

+

30
18

0.01

C920

C911 0.047

RL-

R600 22K

+

D902

BU

1.4V

1.3V

BU

32
31

30
29
28
27

26
25
24

23

8.0V

22
21
20

0V

19

18
17

RR+

D600

C902

R521

1K

R505

1K

R509

1K

R522

1K

C912 0.047

RR+

C602

0.022

BU

BU

+

1u50

C936

C935 2200P

5
4

92

R524 47K

C517

C938

2200P

C937

RR-

RR-

R601

C919

R904

R902

0.22u50

0.22u50

0.22u50

0.22u50

SHIELD

1K 1/2W

0.47u50

R900

82K

2.4K

Q900

C926

C925

2200P

0.033

C928

C927

2200P

H MUTE

0.01

C900

C901

+

100

MUT

P-MUTE

31

30

1M

R526

19

18

R903

0.01

10

+8V

8

9

14

16
15

H REM

1K

D901

83

+8V

+8V

+8V

ACC

R404

17

1K

19

TUNER+B

C401

100u10

C408

27P

C409

27P

93
99
98

R416

IC41

R400

100

+

C402

10.7MHz

X400

R406 1K
R407 1K
R408 1K

R410 1.2K47K

X14- B/2
CN70

+

220u10

5V
0V

0.6/8.0V

0.4/8.0V

R411 1.8K

Q401

FM +B

C414

0.033

8

AF OUT

9

C422

AM NOISE
CANCELLER

54

2/2

A

R401

3.3K

C403

0.01

2

3
4
5

6

7
8

IC40

1

Q402

PLL
LPF

PLL

Q400

16

VSS

X OUT

X IN

CE
CLK
DATA

FM+B
AM+B

+8V +8V

VDD
VDD

FM IN
AM IN

AGC

PD

15

14
13

12

11
10
9

80mV

L403 4.7uH

R414 2.2

5.0V

5.0V

AM +B

47K

R417

+8V

+5V

0.1

15K

R421

C416

10

0.033

C415

0.033

6

7

GND

3.4V

C423

R423

2200P

11

0V

120K

0.068

5

R424

12

1.0V

27K

1.2V

4

R425

C417

13

7.9V

10

3

VCC

+8V

AF IN

C421

C424

C405

R403

0.01

C400

2.2u35

2.7K

2.2K

R405

1V
0V

L402

11
10

9

+8V +8V

C418

14

1.8V

0.01
+

10u16

4.7uH

+5V

R422

0.033

3.0V

2

AF AGC

15

0.4V

R426 47K

C425 0.22

+8V

C410

C412

100K

1

R402

C404

0.1

R412

33u10

C419

2.8-4.0V

IF AGC

IF IN

16

0.6V

C420

C426

330

0.068

22K

+

C411

3

3.3u50

1000P

47P

C406

100u10

0.01

16

+

R420 2.2K

L404 2.2mH

+8V+8V

+

0.01

C407

9

81

80

R415
100K

+8V +8V +8V

79

78

ANT.

D400

L401

+8V

11

10

R413

10K

16

R419 10K

R418 10K

56uH

L400

R409

3

+8V

53
60

J400

100K

C413

D401

UN5111

TA78L05F
UN5211
2SA1362
2SA1576A

GND

VIN

DA204U
2SB1277
2SB1443

A400

24

FM ANT

23

FM DX/LO

22

VT

21

FM+B

20

FM OSC

19

AM ANT

18

AM DX/LO

17

AM OSC

16

AM+B

15

AMSD

14

AM S-MTR

13

AM IF COUNT

12

AGC

11

AM AF

10

AM IF

9

GND

8

FM SD

7

FM S-MTR

0.01

6

FM DET OUT

5

FM+B

4

FM IF COUNT

3

L

2

R

1

ST IND

2SC4081

DTA114EUA
DTA124EUA
DTC114EUA
DTC124EUA

LM7001JU

TUNER

MA142WK

2SK536

MCH6101

HA12187FP

DAN202U

CX-403W (1/2)

CAUTION : For continued safety, replace safety critical components only
with manufacturer's recommended parts (refer to parts list).

Indicates safety critical components. To reduce the risk of electric
shock, leakage-current or resistance measurements shall be carried out
(exposed parts are acceptably insulated from the supply circuit) before
the appliance is returned to the customer.

• DC voltages are as measured with a high impedance voltmeter. Values

may vary slightly due to variations between individual instruments or/

VREF

BUS

J901J900

BU

10K

C530

LCT

345

4.2V

F900

+

10u16

10u16

4.2V

LCOM

4.2V

4.2V

4.2V

4.0V

RCT

RCOM

4.2V

+

C531 10u16

24
13

+B

GND

L900

10A

BU

19

C528

+

LT IN

LVR OUT

RVR OUT

678

C529

10u16

+

2
1

L+

49

6

4

5

3

L-

R-

R+

GND

53

54

60

C200

C516

64

BU

+5V

100u10

+8V

100u10

C556
+

63

64

63

+

+

C555

C201

C202

100u16

100u10

0.022

ILL-CONT

+

50

ILL

49

50

9

810

7

GND

GND

BUS-

BUS+

9

ILL-DET DET

10K

47

11

SYS-ON

120

Q300

BU

R304

+

C303

C300

10u6.3

2-OUTPUT
REGULATOR

0.01

R303

IC20

1

8.0V

13.2V

2
3

+

8.0V

4
5

0/5.0V

28

+8V

R549

18K

R550

18K

R552

5.6K

R553

8.2K

C554

0.022

R555 C539

R539

3.3K4.7u16

2.7K

C553

0.039

R554

8.2K

C552

R548

5.6K

R543

18K

R544

18K

C551

4700P0.033

C548

4700P

R545

R546

R541

R534

R533

R535

R540

R537

R538

3.9K

3.9K

2.7K

3.9K 10K

10K

2.7K

3.9K

3.9K

C549

10u16

C550

10u16

C546

2.2u35

C540

0.22u50

0.15

C541

0.22u50

C542

2.2u35

C544

10u16

C545

10u16

14

12

13

11

+B

+B

ILL

SYS

11

10

680

R901

1/2W

10K

R145

ACC-DET

R606

Q607 Q604

10K

25

+

+

+

+

+

+

+

+

Q606

22K

R609

0.022
20

10

R300

62

100

R302

C302

D301

1000P

+5V

5.0V

0/4.2V

876

2.5V

1

2

3

5V
0V

4

23

24

+5V +5V

R531

1M

+8V+8V

C532

R528

49
50

52

+8V

+

C557

100u10

R532

+

C538

22u10

C535

R527

R305

4.7K

IC30

BUS
I/F

C606

47K

49

50

52

6.2K

R301

5

0.1

4.7K

4.2V

0.1

4.7K

C605

9

R607

7.5K

100

D300

R529

68K

8.0V

4.2V

R530

68K1M

+B

H-MUTE

17

14

D603

0.1

C301

2.5V

C533
220P

49
50

51
52
53
54
55
56
57

58
59
60

61
62
63
64

C534
220P

10K

3.3K

1/2W

R610

1000P

+

1u50

C536

4.2V

484746454443424140393837363534

LVR IN

LSELO

L5P CH
L5M CH
L4 AUX
L3 CD
L2 FM
L1 AM
L6
VDD
VREF

R6
R1 AM
R2 FM
R3 CD
R4 AUX
R5M CH
R5P CH

RSELO

RVR IN

1

2

+

1u50

C537

26

RL-

FL-

FL+

RR+
RR­FR+

FR-

RT IN

C526

ILL

31

19

4.0V

LF 1C1

E-VOL

RF 1C1

4.0V

C527

ILLCONT

1

4.2V

4.0V

IC52

4.0V

4.2V

1

6108

FL-

FL+

C905 0.047

C906 0.047

FL+

Q600-603

D601

C603 0.1

Q603

10K

10K

IC90

1

TAB

3

RL-

5

RL+RL+

7

FL-

9

FL+

11

FLI

13

GND

15

RRI

17

RR+

19

RR-

21

FR+

23

FR-

25

CD

POWER AMPLIFIER

+8V

C524

0.033

4.2V

NCNCNC

LF 1C2

LF 1C3

RF 1C2

RF 1C3NCNCNCRF 3C1

9

11

12

10

4.2V

C525

0.033

FR+

C907 0.047

FL-

P-ANT DRIVE

22K

22K

Q601

BU

6.8V

1.6V

6.8V

0.01

C522

4.2V

4.0V

LF 3C1

131415

4.0V

4.2V

0.01

C523

and units.

AE AF AG AH AI

SYNTHESIZER UNIT (X14-9160-10) (B/2)

1

ED70

COM3

434140

43

COM2

42

42

COM1

41

S40

40

S38

S37

S39

38

393736

38

39

37

S36

S35

353433

35

36

S34

34

S33

33

S32

S31

S30

S29

S28

2832293130

2527262123

S21

S22

22

24

S17

S18

S19

S20

18

19

20

S15

S16

S14

S13

S12

S11

S10S9S8

11

12

15

16

17

13

14

11

12

13

15

16

14

10

8109

7

S6S5S4S3S2

S7

6

5

4

5

6

789

S1

1

2

3

1

2

3

4

S23

S24

S25

S26

S27

323130292827262524232221201918

S31

S32

S30

S29

S28

S26

KI5

C703

TEST

0.1

50

S27

LCD DRIVER

VDD

56

5.0V

C702

1000P

47

R706

51

52

53

VDD1

57

3.4V

33

33

2

34
35
36
37
38
39
40
41
42
43

5V
0V

3

R710 1K

R709 1K

R708 1K

46

47

4

46

S710

47

S707

S33

34

S34

35

S35

36

S36

37

S37

38

S38

39

S39

40

S40

41

COM1

42

COM2

43

COM3

44

KS1/S41

45

KS2/S42

46

KS3

47
48

5V
0V

48

48

KS4
KS5

S703

KS6

KI1

49

50

R707 1K

49

50

5V
0V

KI2

KI3

KI4

51

52

535455

51

52

53

49

S702

S25

IC70

C701

S24

VDD2

58

2.7V

1000P

59

S23

VSS

820P

C700

S22

R705

+B

17

S21

S20

S19

S18

S17

OSCDOCECLDI

61

62

60

68K

R704 100

R703 100

61

62

P4/S4
P3/S3
P2/S2

63

64

R701 100

R702 100

63

64

S16
S15
S14
S13
S12

S11

S10

P1/S1

16
15
14
13
12
11
10
9

S9

8

S8

7

S7

6

S6

5

S5

4
3
2
1

5V
0V

16
15
14
13
12

11

10

9
8
7
6
5
4
3
2
1

+B

1

S711

23

S704S708

MUTE

456

+B

VDD

PL72 PL75

+B

ILL +B

LAMP +B

PL76

PL74

PL73

PL71

PL70

CX-403W (2/2)

ILL GND

S705

D700 :

UP

LC75853NEIC70 :
B30-1586-05

+B

FM/AM

B LINE

10

9

S701

POWER/
VOL

EJECT

S700

9

61

10

62

63

64

R700

240

D700

14 13 12 11 10 9 8 7 6 5 4 3 2 1

CN70

DO

DI

CE

CLK

ENC UP

ENC DOWN

EJECT

LED IND

VSS

VSS

5

S709

TUNE/SKIP

S712 S706

MODE CD/AUX

6

X14- A/2
CN10

1/2

A

CAUTION : For continued safety, replace safety critical components only with manufacturer's recommended parts
(refer to parts list).

Indicates safety critical components. To reduce the risk of electric shock, leakage-current or resistance measure-

ments shall be carried out (exposed parts are acceptably insulated from the supply circuit) before the appliance is

7

returned to the customer.

• DC voltages are as measured with a high impedance voltmeter. Values may vary slightly due to variations between

individual instruments or/and units.