CDP-CE545 - Sony Audio Service Manual (repair manual). Page 34

34

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

PLAY L

O

H LED (D802) drive signal output terminal    “H”: LED on

15

PAUSE L

O

X LED (D803) drive signal output terminal    “H”: LED on

16

MEGA L

O

MEGA CONTROL LED (D801) drive signal output terminal    “H”: LED on

17

XFADE L

O

X-FADE LED (D805) drive signal output terminal    “H”: LED on

18

NODELAY L

O

NO DELAY LED (D804) drive signal output terminal    “H”: LED on

19

WE

O

Write enable signal output to the static RAM (IC302)

20

LOAD IN

O

Loading motor (M11) drive signal output to the BA6780 (IC11)    *1

21

LOAD OUT

O

Loading motor (M11) drive signal output to the BA6780 (IC11)    *1

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

BLK

O

Blank 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

O

Not used (open)

30

RST

I

System reset signal input from the reset signal generator (IC601)    “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

BUSOUT

O

Sircs remote control signal output to the CONTROL A1II

39

NC

O

Not used (open)

40

KEY6

I

Key input terminal (A/D input) (S814 to S820)
PROGRAM, SHUFFLE, CONTINUE, PEAK SEARCH, EDIT/TIME FADE, MENU, FADER
keys input

41

KEY3

I

Key input terminal (A/D input) (S921 to S927)
TIME/TEXT, REPEAT, DISC 5 to DISC 1 keys input

42

NC

O

Not used (open)

43

KEY2

I

Key input terminal (A/D input) (S901 to S907)
DISC SKIP, EX-CHANGE, CLEAR, CHECK, M, m, MEGA CONTROL keys input

44

KEY1

I

Key input terminal (A/D input) (S808 to S813, S829)
A OPEN/CLOSE,  x, X, H, X-FADE, NO DELAY, l AMS L keys input

45

TEST

I

Setting terminal for the test mode    “L” active

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)