CDP-XB820 - Sony Audio Service Manual (repair manual). Page 14

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Pin No.

Pin Name

I/O

Function

1, 2

13G, 14G

O

Grid drive signal output to the fluorescent indicator tube (FL801)    “H”: goes on

3

NC

—

Not used (fixed at “H”)

4

+5V

—

Power supply terminal (+5V)

5

SCOR

I

Subcode sync (S0+S1) detection signal input from the CXD2585Q (IC101) in BD section               
“H” active

6, 7

GND

—

Ground terminal

8

RMIN

I

Sircs signal input from the remote control receiver (IC802)    “L” active

9

GND

—

Ground terminal

10, 11

OPEN

O

Not used (open)

12

LDOUT

O

Motor control signal (load out direction) output to the loading motor driver (IC302)                        
“H” active      *1

13

LDIN

O

Motor control signal (load in direction) output to the loading motor driver (IC302)                          
“H” active      *1

14

SENSE

I

Internal status monitor input from the CXD2585Q (IC101) in BD section

15

XLT

O

Serial data latch pulse output to the CXD2585Q (IC101) in BD section    “L” active

16

DMUTE

O

Digital muting on/off control signal output to the CXD2585Q (IC101) and D/A converter (IC301) 
“L”: muting on

17

PRGLT

O

Serial data latch pulse output to the D/A converter (IC301)    “L” active

18

SENSOR IN

I

Stabilizer detect sensor input terminal (fixed at “L” in this set)

19

BUSOUT

O

Sircs remote control signal output for the CONTROL A1    “H” active

20

BUSIN

I

Sircs remote control signal input for the CONTROL A1    “L” active

21

SENSOR SW

I

Stabilizer detect sensor switch input terminal    “H” active    Not used (open)

22

CLK

O

Serial data transfer clock signal output to the CXD2585Q (IC101) in BD section    “L” active

23

LDON

O

Laser on/off control signal output to the CXA2568M (IC103)    “H”: laser on

24

DATA

O

Serial data output to the CXD2585Q (IC101) in BD section

25

SQCK

O

Subcode Q data reading clock signal output to the CXD2585Q (IC101) in BD section                     
“L” active

26

SUBQ

I

Subcode Q data input from the CXD2585Q (IC101) in BD section

27

+5V

—

Power supply terminal (+5V)

28

AVREF

I

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

29

KEY0

I

Key input terminal (A/D input)    S851 to S858 (LANGUAGE, MUSIC SCAN, AUTO SPACE, 
PEAK SEARCH, PLAY MODE, REPEAT, FADER, TIME/TEXT keys input)

30

KEY1

I

Key input terminal (A/D input)    S801 to S805 and S810 (CLEAR, CHECK, EDIT/TIME FADE, 
0, ), PUSH ENTER keys input)

31

KEY2

I

Key input terminal (A/D input)                                                                                                            
S806 to S810 (

§ OPEN/CLOSE, ·, P, p, ≠ AMS ± keys input)

32

FILTER.SW

I

FILTER switch (S860) input terminal (A/D input)

33

ADJ/AFADJ

I

Input terminal for the CD test mode setting                                                                                         
“L”: ADJ mode, center voltage: AFADJ mode, normally: “H”

34

LOADSW

I

Loading in/out detect switch (S152 and S153) input terminal

35

MODEL.SEL1

I

Destination setting terminal (fixed at “H”)

*1  Loading motor (M903) control

IN

OUT

BRAKE

RUN IDLE

LDOUT (pin !™)

“L”

“H”

“H”

“L”

LDIN (pin !£)

“H”

“L”

“H”

“L”

Operation

Terminal