CDP-CE575 - Sony Audio Service Manual (repair manual). Page 34

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Pin No.

Pin Name

I/O

Description

1 to 4

A3 to A6

O

Address signal output to the static RAM (IC302)

5

GND

—

Ground terminal

6 to 13

D0 to D7

I/O

Two-way data bus with the static RAM (IC302)

14

CE

O

Chip select signal output to the static RAM (IC302)

15 to 18

NC

—

Not used (open)

19

WE

O

Write enable signal output to the static RAM (IC302)

20

LOAD OUT

O

Loading motor (M10) drive signal output to the BA6780 (IC11)

21

LOAD IN

O

Loading motor (M10) drive signal output to the BA6780 (IC11)

22

FL CLK

O

Serial data transfer clock signal output to the FL driver (IC801)

23

FL DATA

O

Serial data output to the FL driver (IC801)

24

FL RST

O

Reset signal output to the FL driver (IC801)

25 to 27

A13, A14, A7

O

Address signal output to the static RAM (IC302)

28

DSENS

I

Detect signal input from the disc sensor (D11)

29

NC

—

Not used (open)

30

RST

I

System reset signal input from the reset signal generator (IC603)    “L”: reset                                   
For several hundreds msec. after the power supply rises, “L” is input, then it changes to “H”

31

EXTAL

I

Main system clock input terminal (10 MHz)

32

XTAL

O

Main system clock output terminal (10 MHz)

33

VSS

—

Ground terminal

34

TX

O

Sub system clock output terminal    Not used (open)

35

TEX

I

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

36

AVSS

—

Ground terminal (for A/D converter)

37

AVREF

I

Reference voltage input terminal (+5V)

38

NC

—

Not used (open)

39

VERSION

I

Model Destination setting terminal

40

ADJ

I

Setting terminal for the test mode

41

KEY4

I

Key input terminal (A/D input) (S941 to S845)    FADER, PEAK SEARCH, CLEAR, CHECK, 
EDIT keys input

42

KEY3

I

Key input terminal (A/D input) (S831 to S838)    DISC 5, DISC 4, DISC 3, DISC 2, DISC 1, 
CONTINUE, SHUFFLE, PROGRAM keys input

43

KEY2

I

Key input terminal (A/D input) (S821 to S827)    MEGA CONTROL, X-FADER NO DELAY, 
MENU, m (AMS–), M (AMS+), TIME/TEXT, REPEAT keys input

44

KEY1

I

Rotary encoder key input terminal (A/D input) (S801, S811 to S815)    l AMS L (DISC) 
PUSH ENTER, H, X, s, EX-CHANGE, DISC SKIP keys input

45

NC

—

Not used (open)

46

TSENS

I

Detect signal input from the table sensor (D10)

47

FLT

O

Serial data latch pulse output to the FL driver (IC801)

48

CLK

O

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

49

NC

O

Not used (open)

50

DATA

O

Serial data output to the CXD2587Q (IC101)

51

SQCK

O

Sub-code Q data reading clock signal output to the CXD2587Q (IC101)

52

SQSO

I

Sub-code Q data signal input from the CXD2587Q (IC101)

53

NC

—

Not used (open)

54

SENSE

I

Internal status (SENSE) signal input from the CXD2587Q (IC101)

55

NC

I

Not used (fixed at “H”)

56

RMIN

I

Remote control signal input from the remote control receiver (IC802)