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57

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

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)

0

I

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, 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, GUITAR, JAZZ, SAMBA, 
DANCE, TANGO, SALSA, GAME, b, v, V, B) keys input

14

KEY 3

I

Key input terminal (A/D input)
S701 to S710, S712 to S715, S741 (TUNER MEMORY, ENTER/TEXT, –, TUNER/BAND, +, 
STEREO/MONO, TUNING MODE, ENTER, P.FILE, FLAT, SURROUND, GROOVE, SUPER 
WOOFER, SUPER WOOFER MODE, LOOP) keys input

15

KEY 4

I

Key input terminal (A/D input)    S611 to S614, S751 to S757 (X, z REC, H SPEED DUB, CD 
SYNC, HX, x, m, M, DISC SKIP, REPEAT, PLAY MODE) keys input

16

—

—

Not used (open)

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)

42

GR-2

O

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

Key input terminal (A/D input)    S601 to S607, S727 to S729 (DISPLAY, SPECTRUM 
ANALYZER, TIMER SELECT, SLEEP, t/CLOCK SET, GAME, FUNCTION, ROCK,
MOVIE, REGGAE) keys input

11

KEY 

58

Pin No.

Pin Name

I/O

Description

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)

79

I2C CLK

I/O

 

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

80

D-SW

I

CD door open/close detection switch (S742) input terminal

“L”: close, “H”: open

NOTE:

•

-XX and -X mean standardized parts, so they
may have some difference from the original
one.

•

The mechanical parts with no reference num-
ber in the exploded views are not supplied.

59

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.

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

1-693-482-11 TUNER (FM/AM)

M901

1-763-072-11 FAN, DC

#1

7-685-871-01 SCREW +BVTT 3X6 (S)

#2

7-685-872-09 SCREW +BVTT 3X8 (S)

#3

7-685-646-79 SCREW +BVTP 3X8 TYPE2 N-S

#1

#3

#3

not supplied

not supplied

#3

#3

#3

#3

#3

#3

#2

#3

#3

#3

Front panel section-1

Chassis section

M901

not supplied

60

Ref. No.

Part No.

Description

Remark

Ref. No.

Part No.

Description

Remark

51

4-232-080-01 COVER (TC-LID)

52

X-4953-376-2 LID (TC) ASSY

53

4-232-085-01 SPRING (TC LID), TENSION

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

1-680-181-11 HEADPHONE BOARD

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), TENSION COIL

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

4-224-104-01 DAMPER

70

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

71

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

72

1-773-055-11 WIRE (FLAT TYPE) (17 CORE)

73

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

74

1-680-171-11 TC (A)  BOARD

75

1-680-172-11 TC (B)  BOARD

76

1-680-180-11 FRONT INPUT  BOARD

77

1-680-183-11 BRACKET (PHONES)  BOARD

#3

7-685-646-79 SCREW +BVTP 3X8 TYPE2 N-S

not supplied

#3

#3

Tape mechanism deck section-1
(TCM-230PWR42)

not supplied

not supplied

Front panel section-2

not supplied