Sony HCD-VP1, Service Manual

35

5-18.

IC  PIN  FUNCTION  DESCRIPTION

•

 MAIN BOARD  IC801 CXP83120A-132Q (SYSTEM CONTROLLER, LCD DRIVER)

Pin No.

Pin Name

I/O

Description

1

TAPE-END

I

Tape end detect sensor input terminal    “H” input when the tape end detected

2

GND

—

Ground terminal

3

REMOCON

I

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

4

TU-DATA/SDA

O

PLL serial data output to PLL IC on the tuner pack (at tuner function)

I

2

C data output to the TDA7439 (IC301) (all functions)

5

NC

—

Not used (open)

6

T-MODE

I

Head position detect switch input terminal    “L”: forward direction, “H”: reverse direction

7

REG-CON

O

Main system power supply on/off control signal output terminal    “H”: power on

8

VCD

O

LED drive signal output of the VCD ON indicator (D500)    “H”: LED on

9

TUNED

I

Tuning detection signal input from the tuner pack    “L”: tuned

10

MOT-CON

O

Capstan/reel motor on/off control signal output terminal    “H”: motor on

11

S-CLK

O

Serial data transfer clock signal output to the VCD block (at CD function)

12

S-SI

I

Serial data input from the VCD block (at CD function)

13

S-SO

O

Serial data output to the VCD block (at CD function)

14

CD-MUTE

O

Not used (open)

15

S-REQ

O

Interrupt status output to the VCD block

16

PBC

O

LED drive signal output of the PBC indicator (D501)    “H”: LED on

17

RST

O

Reset signal output to the VCD block    “L”: reset

18

TU-COUNT

I

PLL count data input from PLL IC on the tuner pack (at tuner function)

19

TU-CE

O

PLL serial chip enable signal output to PLL IC on the tuner pack (at tuner function)

20

JOG-B

I

Jog dial pulse input from the rotary encoder (RV801  VOLUME) (B phase input)

21

JOG-A

I

Jog dial pulse input from the rotary encoder (RV801  VOLUME) (A phase input)

22

AMP-MUTE

O

Muting on/off control signal output to the power amplifier (IC101, 201)
“H”: muting on

23

AMP-STBY

O

Standby on/off control signal output to the power amplifier (IC101, 201)
“L”: standby mode

24

MD/VIDEO-ON

O

MD/VIDEO function control signal output terminal
“H”: MD/VIDEO (“L” output when other functions)

25

TU-ON

O

Power supply on/off control signal output of the tuner pack (TU +10V and FM +7.5V)
LED drive signal output of the TUNER indicator (D855)    “H”: tuner power on (LED on)

26

D.S.G.

O

LED drive signal output of the DSG (Dynamic Sound Generator) indicator (D856)
“H”: LED on

27

CD-SYNC

O

LED drive signal output of the CD SYNC indicator (D857)    “H”: LED on

28

SCK

O

Serial data transfer clock signal output to the TDA7439 (IC301)

29

TU-CLK

O

PLL serial data transfer clock signal output to PLL IC on the tuner pack (at tuner function)

30

SOL-CON

O

Trigger plunger on/off control signal output terminal    “H”: plunger on

31

HP-CHK

I

Headphone check detection signal input terminal

32

TC-SW

I

Half detect (side A and B) switch and cassette in detect switch input terminal (A/D input)

33

KEY4

I

Key input terminal (A/D input)    S826 to S829 (SELECT, PREV, NEXT, RETURN keys input)

34

KEY3

I

Key input terminal (A/D input)    S817 to S822, S824 and S825 (STANDBY I/

u

, CD, TUNER,

TAPE, MD/VIDEO, DSG, TUNER BAND, CD SYNC keys input)

35

KEY2

I

Key input terminal (A/D input)    S801 to S808 (TUNING MODE, CD 

^

/

p

/

+

/

=

, PLAY

MODE, REPEAT, CD EJECT 

6

 keys input)

36

KEY1

I

Key input terminal (A/D input)
S809 to S816 (TAPE 

9

(

/

p

/

)

/

0

/

P

, REC 

r

, /– keys input)

37

SIMUKE

I

Destination setting terminal (A/D input)