SCD-XA333ES - Sony Audio Service Manual (repair manual). Page 72

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Pin No.

Pin Name

I/O

Description

1

MODE DF

O

SACD/CD mode selection signal output to the data selector (IC270)
“L”: CD mode, “H”: SACD mode

2

AMUTE

O

Muting on/off signal output to the analog line circuit    “L”: muting on

3

DOCTRL

O

Digital out on/off control signal output to the CXD3008Q (IC509)
“L”: digital out off, “H”: digital out on

4

LAT DAC

O

Serial data latch pulse signal output to the D/A converter (IC904)

5

DATA DAC

O

Serial data output to the D/A converter (IC904)

6

CLK DAC

O

Serial data transfer clock signal output to the D/A converter (IC904)

7

FCS JMP 4

O

Focus jump 1 signal output to the BA5983FP (IC502)

8

FCS JMP 3

O

Focus jump 2 signal output to the BA5983FP (IC502)

9

SENS CD

I

Internal status (SENSE) signal input from the CXD3008Q (IC509)

10

XCS2

O

Chip select signal output to the D-RAM    Not used (pull up)

11

XCS IO

O

Chip select signal output to the I/O expander (IC902)

12

XCS DVD

O

Chip select signal output to the CXD1882R (IC701)

13

VSS

—

Ground terminal (digital system)

14 to 21

D0 to D7

I/O

Two-way data bus with the CXD1882R (IC701)  and I/O expander (IC902)

22

INT0 DVD

I

Interrupt signal input from the CXD1882R (IC701)

23

INT1 DVD

I

Interrupt signal input from the CXD1882R (IC701)

24

T SENS

I

Disc tray status detection signal input from the table sensor    Not used

25

MON DVD

I

Monitor signal input terminal    Not used (open)

26

DATA CD

O

Serial data output to the CXD3008Q (IC509)

27

XLAT CD

O

Serial data latch pulse signal output to the CXD3008Q (IC509)

28

A1IN

I

Sircs remote control signal input of the CONTROL A1II    Not used

29

COUT CD

I

Numbers of track counted signal input from the CXD3008Q (IC509)

30

IN SW

I

Loading in switch (S001) input terminal    “L”: loading in

31

OUT SW

I

Loading out switch (S002) input terminal    “L”: loading out

32

MIRR

I

Mirror signal input from the CXD3008Q (IC509)

33

SUBQ

I

Subcode Q data input from the CXD3008Q (IC509)

34

SCOR

I

Subcode sync (S0+S1) detection signal input from the CXD3008Q (IC509)

35

SQCLK

O

Subcode Q data reading clock signal output to the CXD3008Q (IC509)

36

NC

—

Not used (open)

37

CLOK CD

O

Serial data transfer clock signal output to the CXD3008Q (IC509)

38

XRST

I

System reset signal input from the reset signal generator (IC905)    “L”: reset
For several hundreds msec. after the power supply rises, “L” is input, then it changes to “H”

39

VSS

—

Ground terminal (digital system)

40

XTAL I

System clock input terminal (20 MHz)

41

EXTAL O

System clock output terminal (20 MHz)

42

VDD

—

Power supply terminal (+3.3V) (digital system)

43

LD ON

O

Laser diode on/off control signal output to the CXD1881R (IC001)
“L”: laser diode off, “H”: laser diode on

44

XDIS IO

O

Reset signal output to the I/O expander (IC902)    “L”: reset

45

MUTE DSD

O

Muting on/off signal output to the DSD decoder (IC801) and CXD9647R (IC803)
“H”: muting on

46

XMSLAT

O

Serial data latch pulse signal output to the DSD decoder (IC801)

47

READY DSD

I

Ready signal input from the DSD decoder (IC801) and CXD9647R (IC803)    “L”: ready

48

SDIN DSD

I

Serial data input from the DSD decoder (IC801) and CXD9647R (IC803)