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34

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µ

Pin No.

Pin Name

I/O

Description

1 to 4

KEY2 to KEY5

I

Key input terminal (A/D input)

5

ANALYZER

I

Analyzer level detection signal input terminal (A/D input)    Not used

6

STATION

I

Tuning detection signal input terminal

7

RDSDATA

I

Serial data input from the RDS decoder    (Used for the AEP, UK models)

8

AVDD

—

Power supply terminal

9

AVREF

I

Reference voltage input terminal

10, 11

CDOUT1, CDOUT2

O

Not used

12

VSS

—

Ground terminal

13

TIME

O

LED drive signal  output terminal

14

CDDATA

I/O

Two-way data bus with the CD block

15

CDRESET

O

Reset signal output to the CD block    “L”: reset

16

REC-EN

O

REC bias control signal output terminal

17

INPINENA

O

Mega bass on/off selection signal output terminal    “H”: mega bass on

18

REC-LED

O

LED drive signal  output terminal

19

SOUNDENA

O

chip enable signal output foe the LC75392

20

PLLENA

O

PLL chip enable signal output to the FM/AM PLL    “H” active

21

MUTE

O

Audio line muting on/off control signal output terminal    “H”: muting on

22

POWER

O

System power on/off control signal output terminal    “H”: power on

23 to 26

COM0 to COM3

O

Common drive signal output to the liquid crystal display

27

BIAS

O

Bias output for the liquid crystal display drive

28 to 30

VLC0 to VLC2

I

Input terminal for doubler circuit capacitor connection to develop liquid crystal display drive 
voltage

31

VSS

—

Ground terminal

32 to 61

SEG0 to SEG29

O

Segment drive signal output to the liquid crystal display

62

SEG30

I/O

Segment drive signal output to the liquid crystal display
AM frequency select switch input terminal
(AM frequency select switch: used for the except AEP, UK, chinese models)

63

SEG31

I/O

Segment drive signal output to the liquid crystal display
AM frequency select switch input terminal
(AM frequency select switch: used for the except AEP, UK, chinese models)

64

SEG32

Segment drive signal output to the liquid crystal display

65

SEG33

O

Segment drive signal output to the liquid crystal display    Not used

66

SEL10

I

Head position detect switch input terminal    “L”: reverse direction,  “H”: forward direction

67

SEG35

O

Segment drive signal output to the liquid crystal display    Not used

68

SEL12

I

Cassette tape detect switch input terminal    “L”: no cassette,  “H”: cassette in

69

SEG37

O

Segment drive signal output to the liquid crystal display    Not used

70

SEL14

I

Rec-proof claw (forward direction) detection signal input from the protect detect switch
“L”: recording possible,  “H”: protect

71

SEL15

I

Rec-proof claw (reverse direction) detection signal input from the protect detect switch
“L”: recording possible,  “H”: protect

72

DATAIN

I

Serial data input from the FM/AM PLL

73

DATAOUT

O

Serial data output to the FM/AM PLL and LC75392

74

CLK

O

Serial data transfer clock signal output to the FM/AM PLL and LC75392

75

EEPROMDATA

I/O

Two-way data bus with the EEPROM

76

STEREO

I

FM stereo detection signal input terminal    “L”: stereo

77

EEPROMCLK

O

Clock signal output to the EEPROM

35

Pin No.

Pin Name

I/O

Description

78

VSS

—

Ground terminal

79

X2

O

Main system clock output terminal (4.194304 MHz)

80

X1

I

Main system clock input terminal (4.194304 MHz)

81

VDD

—

Power supply terminal

82

XT1

I

Sub system clock input terminal (32.768 kHz)    Not used

83

XT2

O

Sub system clock output terminal (32.768 kHz)    Not used

84

RESET

I

System reset signal input from the reset signal generator    “L”: reset
For several hundreds msec. after the power supply rises, “L” is input, then it changes to “H”

85

REMOTE

I

Remote control signal input from the remote control receiver

86

PWRFAIL

I

Power failure detection signal input terminal    “L”: power failure, “H”: power on

87

RDSCLK

I

Serial data transfer clock signal input from the RDS decoder
(Used for the AEP, UK models)

88

CDCLK

I

Serial data transfer clock signal input from the CD block

89

SENSORB

I

Tape sensor input terminal    Not used

90

SENSORA

I

Tape play/rec detect sensor input terminal    “L” input when the tape play/rec detect

91

CD DOOR SW

I

CD lid open/close detect switch (SW300) input terminal    “L”: CD lid is closed

92

CD-EN

O

CD power on/off control signal output terminal

93

SOL

O

Trigger plunger drive signal output terminal    “H”: trigger plunger on

94

TU-EN

O

Tuner power on/off control signal output terminal

95

MOTOR-ON

O

Motor control signal output terminal

96

AMS

I

Whether a music is present or not from AMS is detected at auto music sensor
“L”: music is not present,  “H”: music is present

97

ENCODERA

I

Jog dial pulse input from the rotary encoder (VOLUME) (A phase input)

98

ENCODERB

I

Jog dial pulse input from the rotary encoder (VOLUME) (B phase input)

99

AVSS

—

Ground terminal

100

KEY1

I

Key input terminal (A/D input)

36

• Items marked “*” are not stocked since they

are seldom required for routine service. Some
delay should be anticipated when ordering
these items.

NOTE:

• -XX and -X mean standardized parts, so they

may have some difference from the original
one.

• Color Indication of Appearance Parts

Example:
KNOB, BALANCE (WHITE) . . . (RED)

↑

↑

Parts Color Cabinet's Color

• Abbreviation

AR

: Argentina model

CH

: Chinese model

CND : Canadian model
E51 : Chilean and Peruvian models
HK : Hong Kong model

Ref. No.

Part No.

Description

Remark

Ref. No.

Part No.

Description

Remark

1

3-451-162-00 WASHER

2

4-235-952-01 AC CORD HOLDER

3

A-4729-608-A MAIN BOARD, COMPLETE (AEP, UK)

3

A-4729-812-A MAIN BOARD, COMPLETE (CH)

3

A-4730-007-A MAIN BOARD, COMPLETE

(EXCEPT AEP, UK, CH)

0 4

1-555-750-00 CORD, POWER (AEP, E51, HK)

0 4

1-696-535-11 CORD, POWER (UK)

0 4

1-782-464-21 CORD, POWER (CH)

0 4

1-783-820-11 CORD, POWER (US, CND)

0 4

1783-941-51

CORD, POWER (AR)

7

A-4729-610-A POWER BOARD, COMPLETE

(EXCEPT US, CND)

7

A-4730-008-A POWER BOARD, COMPLETE (US, CND)

#1

7-685-534-14 SCREW +BTP 2.6X8 TYPE2 N-S

#2

7-685-647-14 SCREW +BVTP 3X10 TYPE2 SLIT

#3

7-682-246-04 SCREW +K 3X5

#4

7-685-535-14 SCREW +BTP 2.6X10 TYPE2 N-S

#5

7-685-648-14 SCREW +BVTP 3X12 TYPE2 SLIT

0F201

1-533-471-11 FUSE, GLASS TUBE (DIA.5) (T4AL/250V)

(AEP, UK, E51, CH, AR, HK)

0F201

1-533-296-11 FUSE, GLASS CYLINDRICAL (DIA.5) (US, CND)

0F202

1-533-419-11 FUSE, GLASS CYLINDRICAL (DIA.5) (US, CND)

0F202

1-533-468-11 FUSE, GLASS TUBE (DIA.5) (T2AL/250V)

(AEP, UK, E51, CH, AR, HK)

0 T202

1-437-815-11 TRANSFORMER, POWER

(AEP, UK, E51, CH, AR, HK)

0 T202

1-437-817-11 TRANSFORMER, POWER (US, CND)

Les composants identifiés par une
marque 0 sont critiquens pour la
sécurité.
Ne les remplacer que par une pièce
portant le numéro spécifié.

The components identified by mark

0 or dotted line with mark 0 are
critical for safety.
Replace only with part number
specified.

37

Ref. No.

Part No.

Description

Remark

Ref. No.

Part No.

Description

Remark

51

4-241-112-01 VOL.DECORATION RING

52

4-241-113-01 VOL.ROTARY KNOB

53

4-240-261-01 TUNING SWING KNOB

54

4-241-110-01 DISPLAY WINDOW (AEP, UK, CH)

54

4-241-380-01 DISPLAY WINDOW (US, CND, E51, AR, HK)

55

4-240-240-01 CASS LID WINDOW

56

4-241-118-01 CASS LID

57

4-236-901-01 CASS LID BKT

58

4-236-904-01 CASS LID SPRING

59

4-236-915-01 MAIN PWB MOUNTING BKT (A)

60

4-235-777-01 BELT (FR)

61

3-709-645-01 BELT SR

62

1-796-228-11 DECK, MECH (TCM) (CRL3439)

63

4-236-907-01 CASS LID LATCH HOLDER

64

4-236-905-01 CASS LATCH SPRING

65

4-236-906-01 CASS LID LATCH

66

4-236-899-01 DAMPER

#1

7-685-534-14 SCREW +BTP 2.6X8 TYPE2 N-S

#2

7-685-647-14 SCREW +BVTP 3X10 TYPE2 SLIT