Sony SCD-XE600, Service Manual

25

SCD-XE600

• IC Pin Function Description

MAIN BOARD  IC705  HD6432238RN57TEV (MASTER CONTROL)

Pin No.

Pin Name

I/O

Description

1

SDATA_DAC

O

Serial data output to the D/A converter

2

SCLK_DAC

O

Serial data transfer clock signal output to the D/A converter

3

SLATR_DAC

O

Serial data latch pulse output to the D/A converter

4 to 11

CD0 to CD7

I/O

Two-way data bus with the DSP

12

CVCC

–

Power supply terminal (+3.3V)

13

CA0

O

Address signal output to the DSP

14

VSS0

–

Ground terminal

15 to 22

CA1 to CA8

O

Address signal output to the DSP

23, 24

PB1, PB2

O

Not used

25

LOAD_S0

I

Loading in switch input terminal

26

LOAD_S2

I

Detection signal input for disc tray open    Not used

27

LOAD_S1

I

Loading out switch input terminal

28

TSENS

I

Not used

29

DSENS

I

Disc in detection signal input terminal    Not used

30

TRAY_IN

O

Control signal for loading motor drive

31

RS232CTx

O

Not used

32

RS232CRx

I

Not used

33

TRAY_OUT

O

Control signal for loading motor drive

34

P10

O

Not used

35

DRV_ON

O

Stop signal output for the sled motor and focus/tracking coil

36

SP_ON

O

Stop signal output for the spindle motor

37

P13

O

Not used

38

XLDON

O

Laser diode on/off control signal output to the RF amplifier

39, 40

TRMP, TRMM

O

Tray motor control signal output terminal    Not used

41

P17

O

Not used

42

AVSS

–

Ground terminal

43

DIAG

I

Not used

44

P96

I

Not used

45 to 50

P47 to 42

I

Not used

51

MODEL

I

Setting terminal for model discrimination

52

JIT

I

Jitter value input from the DSP

53

VREF

I

Reference voltage input terminal

54

AVCC

–

Power supply terminal (+3.3V)

55, 56

MD0, MD1

I

Setting terminal for the CPU operational mode

57

OSC2

O

Sub system clock output terminal    Not used

58

OSC1

I

Sub system clock input terminal    Not used

System reset signal input from the reset signal generator    “L”: reset

59

XRES

I

For several hundreds msec. after the power supply rises, “L” is input, then it

changes to “H”

60

XNMI

I

Non-maskable interrupt signal input terminal    Not used

61

XSTBY

I

Standby on/off control signal input terminal    Not used

62

VCC

–

Power supply terminal (+3.3V)

63

XTAL

–

System clock terminal (12.5 MHz)    Not used

64

VSS1

–

Ground terminal

65

EXTAL

I

System clock input terminal (11.2896 MHz)

66

FWE

I

Write enable signal input for flash memory    Not used

67

MD2

I

Setting terminal for the CPU operational mode

68

PF7

I

Not used