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69

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Pin No.

Pin Name

I/O

Description

1

SIRCS

I

Remote control signal input from the remote control receiver (IC702)

2

KEY POWER 

SAVE/DEMO

I

Power save/demonstration switch (S609 POWER SAVE/DEMO (STANDBY)) input terminal
“L” is input when key pressing

3

LED SCK

O

Serial data transfer clock signal output to the LED driver (IC701)

4

KEY POWER 

ON/OFF

I

Power on/off switch (S608 I/1) input terminal    “L” is input when key pressing

5

LED DAT

O

Serial data output to the LED driver (IC701)

6

LED LATCH

O

Serial data latch pulse signal output to the LED driver (IC701)

7

LED SEL

O

LED selection signal output

8

WAKE UP

O

Wakeup control signal output to the system controller (IC501)    “L” active

9

VOL A

I

Jog dial pulse input from the rotary encoder (S736 VOLUME) (A phase input)

10

VOL B

I

Jog dial pulse input from the rotary encoder (S736 VOLUME) (B phase input)

11

KEY 0

I

Key input terminal (A/D input)    S601 to S607, S727 to S730, S733 to S735
(DISPLAY, SPECTRUM ANALYZER, TIMER SELECT, SLEEP, c/CLOCK SET, GAME, 
FUNCTION, ROCK, MOVIE, REGGAE, KARAOKE PON/MPX, PRO LOGIC, DVD 5.1CH, 
KEY CONTROL #) keys input

12

KEY 1

I

Key input terminal (A/D input)
S621 to S627, S743 to S750 (H, h, x, . AMS > m/M, DOLBY NR, DIRECTION,
CD FLASH, EDIT, NON-STOP, DISC1/2/3/4/5) keys input

13

KEY 2

I

Key input terminal (A/D input)
S615 to S619, S716 to S726 (h, H, x, . AMS > m/M, POP, JAZZ, SAMBA, 
DANCE, TANGO, SALSA, GAME, b, v, V, B) keys input

14

KEY 3

I

Key input terminal (A/D input)    S701 to S715, S741 (TUNER MEMORY, ENTER/TEXT, –, 
TUNER/BAND, +, STEREO/MONO, TUNING MODE, ENTER, P.FILE, FLAT, KEY 
CONTROL 2, DSP, GROOVE, SUPER WOOFER, SUPER WOOFER MODE, CD LOOP) keys 
input

15

KEY 4

I

Key input terminal (A/D input)    S611 to S614, S751 to S762 (X, z REC, H SPEED DUB, CD 
SYNC, HX, x, m, M, DISC SKIP, REPEAT, PLAY MODE, NEXT, PREV, RETURN, 
SELECT, ACTIVE) keys input

16

GUITAR 

DISTORTION

O

Distortion on/off control signal output terminal    Not used

17

BPF 0

I

Spectrum analyzer drive (super low frequency)  signal input from the spectrum analyzer band-
pass filter (IC602) (for 40 Hz)

18

BPF 1

I

Spectrum analyzer drive (low frequency)  signal input from the spectrum analyzer band-pass filter 
(IC602) (for 100 Hz)

19

BPF 2

I

Spectrum analyzer drive (low and middle frequency) signal input from the spectrum analyzer 
band-pass filter (IC602) (for 400 Hz)

20

BPF 3

I

Spectrum analyzer drive (middle and high frequency) signal input from the spectrum analyzer 
band-pass filter (IC602) (for 2 kHz)

21

BPF 4

I

Spectrum analyzer drive (high frequency) signal input from the spectrum analyzer band-pass filter 
(IC602) (for 6 kHz)

22

ALL BAND

I

Spectrum analyzer drive signal input from the spectrum analyzer band-pass filter (IC602)
(for VACS, non-stop signal)

23

VSS

—

Ground terminal

24

VASS

—

Ground terminal (for A/D conversion)

25

VAREF

I

Reference voltage (+5V) input terminal (for A/D conversion)

26

VDD

—

Power supply terminal (+5V)

27, 28

GR-16, GR-15

O

Grid drive signal output to the fluorescent indicator tube (FL601)

29 to 40

GR-14 to GR-3

O

Grid drive signal output to the fluorescent indicator tube (FL601)

41

VDD VFT

—

Power supply terminal (+5V)

70

Pin No.

Pin Name

I/O

Description

42

GR-2

O

Grid drive signal output to the fluorescent indicator tube (FL601)

43

GR-1

O

Grid drive signal output to the fluorescent indicator tube (FL601)

44 to 66 SEG-1 to SEG-23

O

Segment drive signal output to the fluorescent indicator tube (FL601)

67

LED STANDBY

O

LED drive signal output of the I/1 indicator (D601)    “H”: LED on

68

VKK

—

Power supply terminal (–35V) (for fluorescent indicator tube drive)

69

VDD

—

Power supply terminal (+5V)

70

XIN

I

System clock input terminal (12.5 MHz)

71

VSS

—

Ground terminal

72

XOUT

O

System clock output terminal (12.5 MHz)

73

RESET

I

System reset signal input from the reset signal generator (IC801)    “L”: reset
For several hundreds msec. after the power supply rises, “L” is input, then it changes to “H”

74

JOG A

I

Jog dial pulse input from the rotary encoder (S763 JOG DIAL) (A phase input)

75

JOG B

I

Jog dial pulse input from the rotary encoder (S763 JOG DIAL) (B phase input)

76

TEST

I

Connected to ground

77

—

—

Not used (open)

78

I2C DATA

I/O

Communication data bus with the system controller (IC501) and CD mechanism controller 
(IC502)

79

I2C CLK

I/O

 

Communication data reading clock signal input or transfer clock signal output with the system
controller (IC501) and CD mechanism controller (IC502)

80

D-SW

I

CD door open/close detection switch (S742) input terminal    “L”: close, “H”: open

71

The components identified by
mark 0 or dotted line with mark

0 are critical for safety.
Replace only with part number
specified.

• Items marked “*” are not stocked since they

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

• The mechanical parts with no reference num-

ber in the exploded views are not supplied.

• Hardware (# mark) list and accessories and

packing materials are given in the last of the
electrical parts list.

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

EA

: Saudi Arabia model

IA

: Indonesia model

MY : Malaysia model
SP

: Singapore model

Ref. No.

Part No.

Description

Remark

Ref. No.

Part No.

Description

Remark

1

4-948-236-21 CUSHION (107)

2

3-363-099-01 SCREW (CASE 3 TP2)

* 3

4-214-777-12 CASE

4

1-769-977-11 WIRE (FLAT TYPE) (13 CORE)

5

1-693-488-11 TUNER (FM/AM)

7

4-232-090-41 PANEL, BACK (MY, SP)

7

4-232-090-51 PANEL, BACK (EA)

7

4-232-090-71 PANEL, BACK (IA)

M901

1-763-072-11 FAN, D.C

72

Ref. No.

Part No.

Description

Remark

Ref. No.

Part No.

Description

Remark

51

4-232-080-01 COVER (TC)

52

X-4953-376-2 LID (TC) ASSY

53

4-232-085-01 SPRING (TC-LID)

54

4-232-070-01 KNOB (TC-B)

55

4-232-069-01 KNOB (TC-A)

56

4-226-537-01 SPRING (TC EJECT), COIL

57

4-232-067-01 KNOB (MIC)

58

4-951-620-01 SCREW (2.6X8), +BVTP

59

4-226-883-01 COVER (EJECT)

60

4-226-880-01 LEVER (EJECT-A)

61

4-226-882-01 LEVER (EJECT-C)

62

4-226-881-01 LEVER (EJECT-B)

63

4-226-889-01 SPRING (LEVER)

64

X-4952-464-1 HOLDER (DECK-A) ASSY

65

4-959-229-11 DETENT, CASSETTE

66

4-225-509-01 HOLDER (DECK-A)

67

X-4952-465-1 HOLDER (DECK-B) ASSY

68

4-225-510-01 HOLDER (DECK-B)

69

4-224-104-11 DAMPER

70

4-235-715-01 SPRING (DECK-A), TORSION COIL

71

4-235-716-01 SPRING (DECK-B), TORSION COIL

72

1-773-056-11 WIRE (FLAT TYPE) (17 CORE)

73

1-773-032-11 WIRE (FLAT TYPE) (15 CORE)

74

A-4475-531-A MIC BOARD, COMPLETE

75

1-680-171-11 TC-A BOARD

76

1-680-172-11 TC-B BOARD

77

1-680-181-11 HEADPHONES BOARD

78

1-680-180-11 FRONT INPUT BOARD