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Pin No.

Pin Name

I/O

Description

1

PH1IN

I

Disc size (8 cm/12 cm) detect signal input from the photosensor (Q604)
“L”: 8 cm, “H”: 12 cm

2

PH2OR3

I

Disc in detect signal input from the photosensor (Q605)     “H”: disc is present

3

PH4IN

I

Disc loading completion detect signal input from the photosensor (Q607)
“H”: disc loading completed

4

AVSS

—

Ground terminal (for analog system)

5

FO

O

Focusing offset automatic alignment signal output to the CXA1782BR (IC501)

6

DAMUTE

O

Muting control signal output to the D/A converter (IC301)    “L”: mute on

7

AVREF1

I

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

8 to 10

—

—

Not used (open)

11

SQIN

I

Subcode Q data input from the CXD2507AQ (IC502)

12

—

—

Not used (open)

13

SQCK

O

Subcode Q data reading clock signal output to the CXD2507AQ (IC502)

14

DAON

O

D/A converter (IC301) power supply on/off control signal output terminal    “H”: power on

15

VFINH

O

Inhibit output to the fluorescent indicator tube driver (IC501)    “L” active

16

VFLAT

O

Serial data latch pulse output to the fluorescent indicator tube driver (IC501)

17

VFDAT

O

Serial data output to the fluorescent indicator tube driver (IC501)

18

VFCLK

O

Serial data transfer clock signal output to the fluorescent indicator tube driver (IC501) and key 
control (IC502)

19

POWER

O

Main system power supply on/off control signal output terminal    “H”: power on

20

SVP

O

Servo system power supply on/off control signal output terminal    “H”: power on

21

AMUTE

O

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

22

DMUTE

O

Digital mute on/off control signal output to the CXD2507AQ (IC502)    “H”: mute on

23

EECE

O

Not used (open)

24

COMP

O

Analog compression signal output to the SM5852CS (IC302)

25

CDON

O

CD/exit input signal select control signal output to the BA3129F (IC101)
“L”: exit input, “H”: CD on

26

LGSENS

O

CD logic sense signal output to the external master unit

27

GFS

I

Guard frame sync signal input from the CXD2507AQ (IC502)     “L”: NG, “H”: OK

28

FOK

I

Focus OK signal input from the CXD2507AQ (IC502)     “L”: NG, “H”: OK

29

APC

O

Laser diode on/off control signal output terminal    “L”: laser on

30

EECLK

O

Not used (open)

31

EESO

O

Not used (open)

32

EESI

I

Not used (open)

33

VSS

—

Ground terminal (for digital system)

34

RDS

I

Not used (open)

35 to 39

—

—

Not used (open)

40

SLDON

O

Sledding servo on/off control signal output terminal

41

SEL0

I

Mode selection input terminal (fixed at “L” in this set)

42

SEL1

I

Mode selection input terminal (fixed at “L” in this set)

43

—

—

Not used (open)

44 to 47

ADJOK0 to 

ADJOK3

O

Automatic alignment monitor output terminal
Not used (open)

48

FG0

O

Focusing gain automatic alignment signal output to the CXA1782BR (IC501)

49

FG1

O

Focusing gain automatic alignment signal output to the CXA1782BR (IC501)

16

Pin No.

Pin Name

I/O

Description

50

FGG

O

Focusing gain automatic alignment signal output to the focus coil driver (IC402)

51

—

—

Not used (open)

52

XRST

O

Reset signal output to the SM5852CS (IC302), CXA1782BR (IC501) and CXD2507AQ (IC502) 
“L”: reset

53

DCLK

O

Serial data transfer clock signal output to the CXD2507AQ (IC502)

54

DDATA

O

Serial data output to the CXD2507AQ (IC502)

55

DLAT

O

Serial data latch pulse signal output to the CXD2507AQ (IC502)

56

LMOT1

O

Loading motor (M903) drive signal output terminal    *1

57

LMOT2

O

Loading motor (M903) drive signal output terminal    *1

58

—

—

Not used (open)

59

IGN

I

Ignition input terminal (connected to power supply in this set)

60

RESET

I

System reset signal input from the reset signal generator (IC602)     “L”: reset
For several hundreds msec. after the power supply rises, “L” is input, then it changes to “H”

61

SENS

I

Internal status input from the CXD2507AQ (IC502)

62

RADIOON

I

Radio on/off control signal input from the power connector (CN201)

63

BATTCHK

I

Backup power detection signal input terminal (used also to reset standby)

64

SCOR

I

Subcode sync (S0+S1) detection signal input from the CXD2507AQ (IC502)

65

C.OUT

I

Track number count signal input from the CXA1782BR (IC501)

66

EJKEY

I

Inputs the disc eject switch (S501) detection signal
“L” is input while the switch is pressed (used also to reset standby)

67

BATTDET 

(INSW)

—

Not used (open)

68

VDD

—

Power supply terminal (+5V) (for digital system)

69

X2

O

Main system clock output terminal (4.19 MHz)

70

X1

I

Main system clock input terminal (4.19 MHz)

71

IC

—

Internal connection terminal (normally connected to ground)

72

—

O

Not used (open)

73

—

I

Not used (fixed at “L”)

74

AVDD

—

Power supply terminal (+5V) (for analog system)

75

AVREF0

I

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

76

LAMPIN

I

Lamp drive voltage input from the power connector (CN201)

77

SH/LO

O

Shift/load control signal output to the key control (IC502)

78

QH

I

Key data input from the key control (IC502)

79

LSW

I

Inputs the sled limit in detect switch (S301) detection signal
“H”: When the optical pick-up is inner position

80

DSW

I

Inputs the disc set detect switch (S601) detection signal
“L”: When completion of the disc chucking operation

*1  Loading motor (M903) control

LMOT1 (pin %§)

“H”

“L”

“H”

“L”

LMOT2 (pin %¶)

“H”

“H”

“L”

“L”

Terminal

Operation

OFF

OUT

IN

BRAKE