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– 111 –

Pin No.

Pin Name

I/O

Function

Laser modulation select signal output to the HF module switch circuit

Playback power: “H”, Stop: “L”,

Recording power:

65

MOD

O

66

XLATCH

O

Serial data latch pulse signal output to the CXD2654R (IC121)

67

WRPWR

O

Laser power select signal output to the CXD2654R (IC121) and HF module switch circuit
“L”: playback mode, “H”: recording mode

68

LOADING

SEL: L

I

Setting terminal for the loading control method
“H”: not used IN switch (fixed at “H”)

69

L3MODE

O

L3 bus mode control signal output to the A/D, D/A converter (IC201)

70

C1E

I

Not used (fixed at “L”)

71

C1F

I

Not used (fixed at “L”)

72

SCTX

O

Recording data output enable signal output to the CXD2654R (IC121) and over write head driver 
(IC181)    Writing data transmission timing output (Also serves as the magnetic head on/off 
output)

73

XINT

I

Interrupt status input from the CXD2654R (IC121)

74

REC-P

O

Detection input from the recording position detect switch    “L” active
Not used (fixed at “H”)

75

DQSY

I

Digital In U-bit CD format subcode Q sync (SCOR) input from the CXD2654R (IC121)
“L” is input every 13.3 msec    Almost all, “H” is input

76

—

I

Not used (open)

77

DIGRST

O

Reset signal output to the CXD2654R (IC121) and BH6511FS (IC152)    “L”: reset

78

SENS

I

Internal status (SENSE) input from the CXD2654R (IC121)

79

MNT3

I

Spindle servo lock status monitor signal input from the CXD2654R (IC121)

80

MNT2

I

Busy signal input from the CXD2654R (IC121)

81

MNT1

I

Track jump detection signal input from the CXD2654R (IC121)

82

MNT0

I

Focus OK signal input from the CXD2654R (IC121)
“H” is input when focus is on (“L”: NG)

83

SENSOR SW

O

Control signal output for the sensor gain selection

84

DISC5

I

Detection input from the disc 5 detect switch (S5)    “L”: set disc 5

85

DISC1

I

Detection input from the disc 1 detect switch (S1)    “L”: set disc 1

86

DISC2

I

Detection input from the disc 2 detect switch (S2)    “L”: set disc 2

87

SCL

O

Serial clock signal output to the EEPROM (IC171)

88

SDA

I/O

Two-way data bus with the EEPROM (IC171)

89

DISC4

I

Detection input from the disc 4 detect switch (S4)    “L”: set disc 4

90

DISC3

I

Detection input from the disc 3 detect switch (S3)    “L”: set disc 3

91

HEADSW-

DOWN

I

Detection input from the over write head down position detect switch (S7)
“L”: down position

92

HEADSW-UP

I

Detection input from the over write head up position detect switch (S6)
“L”: up position

93

KEY3

I

Key input terminal (A/D input)    S807 to S812 (MD DISC1/2/3/4/5, DISC SKIP) keys input

94

KEY2

I

Key input terminal (A/D input)
S803 to S806 (§, REC MODE, r REC, MD WALKMAN LINK) keys input

2 sec

0.5 sec

– 112 –

Pin No.

Pin Name

I/O

Function

95

KEY1

I

Key input terminal (A/D input)
S603, S604, S606 to S609 (PLAY MODE, REPEAT, 

π, fl, 0, )) keys input

96

AVSS

—

Ground terminal (for A/D converter)

97

KEY0

I

Key input terminal (A/D input)    S602, S610 to S613, S802 (1/ALL, NAME EDIT, MENU/NO, 
ENTER/YES, CLEAR, DISPLAY) keys input

98

VREF

I

Reference voltage (+3.3V) input terminal (for A/D converter)

99

+3.3V

—

Power supply terminal (+3.3V)

100

WMIN

I

Serial data input from the equipment connected to MD WALKMAN LINK jack (J1)

– 113 –

•

Pin No.

Pin Name

I/O

Function

1, 2

OPEN

O

Not used (open)

3

LEDLAT

O

Serial data latch pulse output to the LED driver IC (IC661)

4

DRVCS

O

Chip select signal output to the FL driver IC (IC601)    “L” active

5

RE

O

Output enable signal output to the static RAM (IC302)    “L” active

6

WE

O

Data write enable signal output to the static RAM (IC302)    “L” active

7

DRVRST

O

Reset signal  output to the FL driver IC (IC601) and LED driver IC (IC661)    “L”: reset

8

OPEN

O

Not used (open)

9

VDD

—

Power supply terminal (+5V)

10

BDRST

O

Reset signal output to the CXD2587Q (IC101) and BA5974FP (IC102) on the CD block
“L”: reset

11

BDPWR

O

Power on/off control signal output terminal    “L”: power on    Not used (open)

12

DRVDAT

O

Serial data output to the FL driver IC (IC601) and LED driver IC (IC661)

13

DRVCLK

O

Serial data transfer clock signal output to the FL driver IC (IC601) and LED driver IC (IC661)

14

LOD POS

O

CD loading motor (M702) control signal output to the motor driver IC (IC702)
“L” active    *1

15

LOD NEG

O

CD loading motor (M702) control signal output to the motor driver IC (IC702)
“L” active    *1

16

CLP POS

O

CD elevator up/down motor (M701) control signal output to the motor driver IC (IC701)
“L” active    *2

17

CLP NEG

O

CD elevator up/down motor (M701) control signal output to the motor driver IC (IC701)
“L” active    *2

18

OUT SW

I

Detection input from the tray open/close detect switch (S708) on the CD mechanism block
“L”: when tray is open, “H”: when tray is close

19

IN SW

I

Detection input from the tray open/close detect switch (S704) on the CD mechanism block
“L”: when tray is close, “H”: when tray is open

20

MIDOUT SW

I

Detection input from the mid out detect switch (S701) on the CD mechanism block
“L”: when tray is going to open or close

21

MID SW

I

Detection input from the mid in detect switch (S703) on the CD mechanism block
“L”: when sub tray move between tray and stocker

22

TEST

I

Test input terminal (fixed at “L”)

23

ENCODE0

I

24

ENCODE1

I

25

ENCODE2

I

26

INIT SW

I

Detection input from the INIT detect switch (S705) on the CD mechanism block
“L”: when elevator down to bottom, others: “H”

27

ADJ

I

Setting terminal for the CD test mode    Normally: fixed at “H” (“L”: test mode)

28

AMUTE

O

Analog muting on/off control signal output terminal    Not used (open)

29

DATA

O

Serial data output to the CXD2587Q (IC101) on the CD block

30

CLK

O

Serial data transfer clock signal output to the CXD2587Q (IC101) on the CD block

31

XLT

O

Serial data latch pulse output to the CXD2587Q (IC101) on the CD block

32

PANEL SW

I

Detection input from the CD tray door open/close detect switch (S702)
“L”: when CD lid is open, “H”: when CD lid is close

Detection input from the disc tray address detect rotary encoder (S707) on the CD mechanism 
block

µ

*1  CD loading motor  (M702) control

Loading

Eject

Stop

Brake

LOD NEG  (pin !∞)

“L”

“H”

“H”

“L”

LOD POS (pin !¢)

“H”

“L”

“H”

“L”

Mode

Terminal

*2  CD elevator up/down motor (M701) control

Elevator

Up

Elevator

Down

Stop

Brake

CLP NEG (pin !¶)

“L”

“H”

“H”

“L”

CLP POS (pin !§)

“H”

“L”

“H”

“L”

Terminal

Mode

– 114 –

Pin No.

Pin Name

I/O

Function

33

BUSD0

O

CD digital signal selection control signal output terminal

34

BUSD1

O

Not used (open)

35

BUSD2

O

Not used (open)

36

I2CHELP

(BUSD3)

O

Busy signal output for the I2C bus    “L” active

37

VDD

—

Power supply terminal (+5V)

38

X2

O

Main system clock output terminal (12.5 MHz)

39

X1

I

Main system clock input terminal (12.5 MHz)

40

VSS

—

Ground terminal

41

XT2

O

Sub system clock output terminal    Not used (open)

42

XT1

I

Sub system clock input terminal    Not used (fixed at “L”)

43

RESET

I

System reset signal input terminal (Power down detect signal used as a reset signal)
“L”: reset or power down
For several hundreds msec. after the power supply rises, “L” is input, then it changes to “H”

44

I2CHELP

(BUSCLK)

I

Busy signal input for the I2C bus    “L” active

45

BUSBSY

O

Busy signal output when bus data in/out operation    Not used (open)

46

SCOR

I

Subcode sync (S0+S1) detection signal input from the CXD2587Q (IC101) on the CD block

47

DQSY

I

Data read enable signal input terminal    Not used (open)

48

AC CUT

I

Power down detection input terminal    “L”: power down

49

JOG0

I

Jog dial pulse input from the rotary encoder (S681 

≠ C c ±) (A phase input)

50

JOG1

I

Jog dial pulse input from the rotary encoder (S681 

≠ C c ±) (B phase input)

51

AVDD

—

Power supply terminal (+5V) (for A/D converter analog system)

52

AVREF0

I

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

53

KEY0

I

Key input terminal (A/D input)
S604, S613, S661 to S665 (REPEAT, CLEAR, CD 1/2/3/4/5) keys input

54

KEY1

I

Key input terminal (A/D input)
S611, S612, S671 to S676 (MENU/NO, ENTER/YES, 

§ CD 1/2/3/4/5, DISC SKIP) keys input

55

KEY2

I

Key input terminal (A/D input)    S602, S603, S606 to S610, S636 (1/ALL, PLAY MODE, 

fl, 

π, 0, ), NAME EDIT, DISPLAY) keys input

56

SELECT0

I

Setting terminal for the Japanese letter input functions
“L”: input possible (fixed at “H” in this set)

57

SELECT1

I

Setting terminal for the separate/complete type setting of CD section and others section 
(amplifier, tuner, etc.)    “L”: separate type, “H”: complete type (fixed at “L” in this set)

58

SELECT2

I

GFS NG when search mode (A/D input)

59

DISC SENS

I

Detection input from the disc in detect sensor (D704 and Q703) on the CD mechanism block
“H”: disc detected

60

CNT SW

I

Detection input from the count detect switch (S706) on the CD mechanism block
“L”: when elevator up/down each sub tray stock position

61

AVSS

—

Ground terminal (for A/D converter analog system)

62

MECHA JIG

I

Test input terminal (fixed at “L”)

63

CHECK

O

Not used (open)

64

AVREF1

I

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

65

SRDT

I

Serial data input terminal    Not used (open)

66

OPEN

O

Not used (open)

67

SCLK

O

Serial data transfer clock signal output terminal    Not used (open)

68

SUBQ

I

Subcode Q data input from the CXD2587Q (IC101) on the CD block

69

OPEN

O

Not used (open)

70

SQCLK

O

Subcode Q data reading clock signal output to the CXD2587Q (IC101) on the CD block