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– 13 –

•

 The indicated voltage in each section is the one measured

by Digital Multimeter between such a section and the chas-
sis with no signal given.
1. In the tuner section,

indicates AM
indicates FM stereo

2. In the main section, a tape is being played back.
3. In the deck section, a tape is being played back.
4. In the power section, a tape is being played back.
5. In the CD section, the CD is stopped.

•

 Parts marked with “ 

1

 ” (                          ) are important for

maintaining the safety of the set. Be sure to replace these
parts with specified ones for maintaining the safety and
performance of the set.

•

 Resistor:

To differentiate the units of resistors, such symbol as K and
M are used: the symbol K means 1000 ohm and the symbol
M means 1000 kohm and the resistor without any symbol is
ohm-type resistor. Besides, the one with “Fusible” is a fuse
type.

•

 Capacitor:

To indicate the unit of capacitor, a symbol P is used: this
symbol P means pico-farad and the unit of the capacitor
without such a symbol is microfarad. As to electrolytic
capacitor, the expression “capacitance/withstand voltage”
is used.
(CH), (TH), (RH), (UJ): Temperature compensation
(ML): Mylar type
(P.P.): Polypropylene type

•

 Schematic diagram and Wiring Side of P.W.Board for this

model are subject to change for improvement without prior
notice.

SW705

TUNER (BAND)

ON—OFF

SW706

TUNING DOWN

ON—OFF

SW707

PRESET DOWN

ON—OFF

SW708

EQUALIZER/X-BASS/DEMO

ON—OFF

SW709

TAPE

ON—OFF

SW710

STOP

ON—OFF

SW711

VOLUME UP

ON—OFF

SW712

DISC SKIP

ON—OFF

SW713

OPEN/CLOSE

ON—OFF

SW714

PLAY/REPEAT

ON—OFF

SW715

VOLUME DOWN

ON—OFF

SW801

REC./P.B.

ON—OFF

SW1

OPEN/CLOSE

ON—OFF

SW2

DISC

ON—OFF

SW3

UP

ON—OFF

SW4

PICKUP IN

ON—OFF

SW5

TAPE 1 PLAY

ON—OFF

SW6

TAPE 1 FF/REW

ON—OFF

SW7

TAPE 2 FF/REW

ON—OFF

SW8

TAPE 2 PLAY

ON—OFF

SW701

ON/STAND-BY

ON—OFF

SW702

CD

ON—OFF

SW703

TUNING UP

ON—OFF

SW704

PRESET UP

ON—OFF

(1)  (2) (3) 

(S) (G) (D) 

E   C    B 

FRONT

VIEW

B   C    E

FRONT

VIEW

KRA102 M
KRC102 M
KRC107 M
KRC104 M
KSA1015 GR
HSB562 C
HSC1609 GR
KSC1815 GR
KSC3203 Y
KSA1271 Y
2SC380 O

2SD2012 Y

SD3210WE

FRONT
VIEW

– 14 –

1 2 3 4 5 6 7 8 9 10 11 12 13 14 

15 

16 

17 

18 

19 

20 

21 

22 

23 

24 

25 

26 

27 

28 

32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 

1

2

3

4

5

6

7

8

9

10 11 12 13 14 15 16

LOAD+ 

LOAD–

ROTATE

PICK_IN 

DISC_SW 

LOAD_SW 

O/C  SW

–

+ 

–

+ 

PO1–

PO1+

VO3–

VO3+

VIN3

VG3 

VCC 

VCC 

BIAS

VG4 

VIN4

VO4+

VO4–

OPO

VO2–

VO2+

VIN2

VG2

GND 

GND

GND

MUTE

REG  O

TRB

VG1

VIN1

VO1+

VO1–

VREF

VDET

TEBPF

TEOUT

TEN

FEN

FEOUT

GCTL

FBAL

TBAL

E

F

D

B

C

A

GND 

NRFDET

OFTR

CBDO

CDFTR 

BDO 

3TOUT 

CEA 

ARF 

CACC

RFIN

RFOUT 

RFN 

VCC 

LD

PD

M 

M 

UP_SW

DISC_SW

LOAD SW

M_GND

ROTATE- 

ROTATE+ 

M+
M–

C 

TR–

+5V

1/2V

E

A

B

F

C

GND

PD

VR

LD

FO–

FO+

TR+

ACTUATOR

FO–

TR–

TR+ 

FO+ 

–

+ 

–

+ 

–

+ 

–

+ 

–

+ 

VCC 

LD

MON 

GND 

E 

A 

B 

F 

+ 

+ 

–

– 

SP+

SP–

SL+

SL–

PU-IN

GND

M 

M 

PICKUP UNIT 

SW1

OPEN/

CLOSE

SW2

DISC

SW3

UP

M3

T/T UP/DOWN

LOADING MOTOR

Q403

Q402

Q405

Q407

Q406

Q408

Q409

Q410

D403

IC402

AN22000A

HEAD AMP.

Q401

Q404

IC404

MM1469XH

FOCUS/TRACKING/SPIN/SLED DRIVER

D402

NM802

SPINDLE

MOTOR

NM801

SLED

MOTOR

M1

CD LOADING

MOTOR

SW4

PICKUP IN

IC404

LASER

DRIVER

– 15 –

48 

47 

46 

45 

44 

43 

42 

41 

40 

39 

38 

37 

24 

23 

22 

21 

20 

19 

18 

17 

16 

15 

14 

13 

80 

79 

78 

77 

76 

75 

74 

73 

72 

71 

70 

69 

68 

67 

66 

65 

64 

63 

62 

61 

40

39 

38 

37 

36 

35 

34 

33 

32 

31 

30 

29 

28 

27 

26 

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 

50 51 52 53 54 55 56 57 58 59 60 

41 42 43 44 45 46 47 48 49 

36 35 34 33 32 31 30 29 28 27 26 25 

1 2 3 4 5 6 7 8 9 10 11 12 

TAPE_DET

TAPE_DET

DEMO

MMOD

NRST

BLKCK

DO

E

GVSW

SYS_STOP

MODE_CHK

A_GND

CD_R

CD_L

DATA

MLD 

MDATA 

MCLK

FM_ST 

SD

P_STB

P_MUTE

STB

CLK

P_CON 

CD_STB

CD+B

IR

CE

DI

CL

P0W_KEY

XO

XI

VSS

OSC1

OSC2

VDD 

ROTATE

LOAD- 

LOAD+ 

UP_SW 

DISC_SW 

LOAD_SW 

PICK_IN 

STAT

MRST

SSEL

MSEL

PSEL

CSEL

RSEL

OUTR

AVSS1

OUTL

AVDD1

/TEST

IOSEL

RESY

DEMPH

CRC

CLVS

FLAG

IPFLAG

FCLK

CLOCK

BYTCK

VDD 

X2

X1

VSS 

SBCK

SUBC

VCDF2 

PCK 

EFM/CK384 

AVSS2 

AVDD2 

VCOF

PLLF

DSLF

DRF 

IREF

ARF 

WVEL

TDFS

PLLF1 

TBAL

LD

BDO 

/RFDET

TRCRS 

OFT 

VDET

RFENV 

TE

FE

FBAL

VREF

FOO 

TRO 

KICK

ECS 

ECM 

PC

TVD 

TVR 

PMCK

/RST

STAT

DMUTE

SUBQ

SQCK

BLKCK

/TLOCK

/FLOCK

SENSE

MLD

MDATA

MCLK

TX

DVSS1

DVDD1

SRDATA

LRCK

BCLK

3

2

1

1

2

SD

FM_ST

DO

CL

DI

CE

7

6

3

4

5

9

8

10

1

2

CD+B

STB

CLK

POW_SW

INTR

D_GND

DATA

3

4

6

1

2

7

5

6

4

3

1

2

5.6V

P_MUTE

P_STB

6.2V

M_GND

CHANEL_SW

D_GND

5

CNP701

+B6

+B7

+B5

X402

8 MHz

CNS701

CNS101

D401

D405

D404

Q411

Q412

CONSTANT

VOLTAGE

Q413

ZD401

CNS105

CNP105

TO MAIN
SECTION

CNP103

TO MAIN
SECTION

IC401

MN6627482W

CD SIGNAL CONTROL

IC403

IX0051SJ

SYSTEM

MICROCOMPUTER

CNS103

– 16 –

CL

CE

DI

SYSTEM

MUTE

Q203
Q204

DO

CL

DI

CE

MO/ST

SWITCHING 

+B4

FM/AM

IC302

LC72131

PLL(TUNER)

FM/AM

OUT 

+B4

L

R

P.B.

REC

AC  BIAS

L 

L 

R 

R 

R 

L 

TAPE

TUNER 

CD

PB

CNP103

FROM

CD SECTION

CNS103

ERASE

HEAD

OSC

BIAS

Q801
L801

TAPE  1

PLAYBACK

HEAD

TAPE  2

R-CH

L-CH

R-CH

L-CH

IC601

LC75341M

AUDIO  PROCESSOR

P.B 

+B4

R

L

R

L REC

L  NF

R  NF

ALC

REC

T1/T2

REF

R  REC

L  REC

R  NF

L  NF

SWITCHING 

L(T2)

R(T2)

R(T1)

L(T1)

IC801

AN7345K

PLAYBACK  AND  RECORD

/PLAYBACK  AMP.

R

L

FM/AM

MPXIN

STEREO

AM  RF  IN

AM  OSC  IN 

FM

SP DET

Q360

VT

FM  OSC

OSC 

X352

4.5 MHz

AM  BAND

COVERAGE

AM  TRACKING

T302

X351

456 kHz

MO/ST

VCO

FM

DET

VCC

GND 

AM  IF 

CF351

DZ5.1BSJ

AM IF

IC303

LA1832S

IC303

LA1832S

FM IF DET./

FM MPX./AM IF

AM  MIX

CF352

T351

CF301

FE301

FM FRONT END

CNP301

SO301

FM

ANTENNA

TERMINAL

AM LOOP

ANTENNA

22

3

21

4 

24

2 

1 

8 

18

17

3

9 10

18

11

3

15

10

7

23

14
12
13

1

2

20

19

7 

18

10

8 

17

13

21

4 

5 

2 

24

23

6

9

16

14

12

15

1 

5

1

3

6

2

4

8

2
1

21

7

9

8

5

6

21

2

1

20

22

11

17

16

15

5

1

7

3

13

14

12

15

16

23

4

7

SW801

H

SW801

B, C, D,

F, G

SW801

A, E

+B4

Q301

FM

4

T306

17

FRO
SEC

CN

+B3

+B3

+B3

+B3

M

M2

TAPE

MOTOR

SW5

T1 PLAY

SW6

T1 FF/REW

SW7

T2 FF/REW

SW8

T2 PLAY

CF302

RECORD/

PLAYBACK HEAD

L354

LOW PASS

FILTER