4-9. IC PIN FUNCTION DESCRIPTION

•CONTROL BOARD IC801 TMP87C846N-4D22 (SYSTEM CONTROLLER)

Pin No.

Pin Name

I/O

Description

 

 

 

 

 

 

 

 

 

 

 

1

C6DBUP

O

Relay drive signal output for the +6 dB gain control (for CENTER input signal)

 

“H”: +6 dB on

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

C12DBUP

O

Relay drive signal output for the +12 dB gain control (for CENTER input signal)

“H”: +12 dB on

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

R6DBUP

O

Relay drive signal output for the +6 dB gain control (for REAR input signal) “H”: +6 dB on

 

 

 

 

 

 

 

4

R12DBUP

O

Relay drive signal output for the +12 dB gain control (for REAR input signal)

“H”: +12 dB on

 

 

 

 

 

 

 

5

MAINRY

O

Relay drive signal output for the power on/off control

“L”: standby mode, “H”: power on

 

 

 

 

 

 

 

6

OUTDRY

O

Relay drive signal output for the INPUT 1 or 2 signal

“L”: INPUT 2, “H”: INPUT 1

 

 

 

 

 

 

 

7

OUTCRY

O

Relay drive signal output for the output protect “L”: protect, “H”: releasing of

protect

 

 

 

 

 

 

 

8

OUTBRY

O

Relay drive signal output for the BYPASS 2ch input signal

“H”: BYPASS 2ch on

 

 

 

 

 

 

 

9

OUTARY

O

Relay drive signal output for the BYPASS 5.1ch input signal

“H”: BYPASS 5.1ch on

 

 

 

 

 

 

 

10

STANDBY LED

O

LED drive signal output of the STANDBY LED (D809) “L”: LED on

 

 

 

 

 

 

 

 

 

 

 

11

INPUT-1 LED

O

LED drive signal output of the input 1 LED (D810)

 

“L”: LED on

 

 

 

 

 

 

 

 

 

 

 

 

12

INPUT-2 LED

O

LED drive signal output of the input 2 LED (D811)

 

“L”: LED on

 

 

 

 

 

 

 

 

 

13

BP-5.1CH LED

O

LED drive signal output of the BYPASS 5.1ch input LED (D812)

“L”: LED on

 

 

 

 

 

 

 

 

14

BP-2CH LED

O

LED drive signal output of the BYPASS 2ch input LED (D813)

“L”: LED on

 

 

 

 

 

 

 

 

15

MUTE LED

O

LED drive signal output of the MUTING LED (LED on S802) “L”: LED on

 

 

 

 

 

 

 

 

 

16

VOL LED

O

LED drive signal output of the master volume LED (D815)

“L”: LED on

 

 

 

 

 

 

 

 

 

 

 

 

 

17

 

TEST

I

Test input terminal (fixed at “L”)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

18

 

RESET

I

System reset signal input from the reset signal generator (IC805)

“L”: reset

 

 

For several hundreds msec. after the power supply rises, “L” is input, then it changes to “H”

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

19

 

XIN

I

Main system clock input terminal (8 MHz)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

20

 

XOUT

O

Main system clock output terminal (8 MHz)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

21

 

VSS

—

Ground terminal

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

22

VAREF

I

Reference voltage (+5V) input terminal

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

23

 

SW4

I

INPUT SELECTOR switch (S801) input terminal

“H”: input 1

 

 

 

 

 

 

 

 

 

 

 

 

24

 

SW3

I

INPUT SELECTOR switch (S801) input terminal

“H”: input 2

 

 

 

25

 

SW2

I

INPUT SELECTOR switch (S801) input terminal

“H”: BYPASS 5.1ch input

 

 

 

 

 

 

 

 

26

 

SW1

I

INPUT SELECTOR switch (S801) input terminal

“H”: BYPASS 2ch input

 

 

 

 

 

 

 

27

 

MUTE

I

MUTING switch (S802) input terminal “L” is input when key pressing

 

 

 

 

 

 

 

28

W. GAIN

I

WOOFER LEVEL up switch (S805) input terminal

 

“L” is input when key pressing

 

 

 

 

 

 

29

R. GAIN

I

REAR L/R LEVEL up switch (S804) input terminal

 

“L” is input when key pressing

 

 

 

 

 

30

C. GAIN

I

CENTER LEVEL up switch (S803) input terminal

“L” is input when key pressing

 

 

 

 

 

 

 

31

W12DBUP

O

Relay drive signal output for the +12 dB gain control (for WOOFER

input signal)

“H”: +12 dB on

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

32

W6DBUP

O

Relay drive signal output for the +6 dB gain control (for WOOFER

input signal)

“H”: +6 dB on

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

33

 

A-1 IN

I

Sircs remote control signal input for the S-LINK control A1

 

 

 

 

 

 

 

 

 

 

 

 

34

A-1 OUT

O

Sircs remote control signal output for the S-LINK control A1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

35

 

—

I

Not used (fixed at “L”)

 

 

 

 

 

 

 

 

 

 

 

 

36

 

SIRCS

I

Remote control signal input from the remote control receiver (IC804)

 

 

 

 

 

 

37

 

VOL+

O

Motor drive signal output to the volume motor drive (IC803) (volume up direction)

 

 

 

 

 

38

 

VOL–

O

Motor drive signal output to the volume motor drive (IC803) (volume down direction)

 

 

 

 

 

 

 

 

 

 

39

STOP IN

I

Trigger input terminal

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

40

 

RCL

O

Serial clock signal output to the EEPROM (IC802)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

41

 

RDT

I/O

Two-way data bus with the EEPROM (IC802)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

42

 

VDD

—

Power supply terminal (+5V)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

– 23 –

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Sony TA-P9000ES service manual IC PIN Function Description, Control Board IC801 TMP87C846N-4D22 System Controller
Page 16 Page 18

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