Ic Pin Function Description - Sony TA-P9000ES Service Manual

4-9. IC PIN FUNCTION DESCRIPTION

• CONTROL BOARD IC801 TMP87C846N-4D22 (SYSTEM CONTROLLER)
Pin No. Pin Name
1 C6DBUP
2 C12DBUP
3 R6DBUP
4 R12DBUP
5 MAINRY
6 OUTDRY
7 OUTCRY
8 OUTBRY
9 OUTARY
10 STANDBY LED
11 INPUT-1 LED
12 INPUT-2 LED
13 BP-5.1CH LED
14 BP-2CH LED
15 MUTE LED
VOL LED
16
TEST
17
18 RESET
19 XIN
20 XOUT
21 VSS
22 VAREF
23 SW4
24 SW3
25 SW2
26 SW1
27 MUTE
28 W. GAIN
29 R. GAIN
30 C. GAIN
31 W12DBUP
32 W6DBUP
33 A-1 IN
34 A-1 OUT
35 —
36 SIRCS
37 VOL+
38 VOL–
39 STOP IN
40 RCL
41 RDT
42 VDD
I/O
Relay drive signal output for the +6 dB gain control (for CENTER input signal)
O
"H": +6 dB on
Relay drive signal output for the +12 dB gain control (for CENTER input signal)
O
"H": +12 dB on
O
Relay drive signal output for the +6 dB gain control (for REAR input signal) "H": +6 dB on
O Relay drive signal output for the +12 dB gain control (for REAR input signal) "H": +12 dB on
O
Relay drive signal output for the power on/off control "L": standby mode, "H": power on
O
Relay drive signal output for the INPUT 1 or 2 signal "L": INPUT 2, "H": INPUT 1
O
Relay drive signal output for the output protect "L": protect, "H": releasing of protect
O Relay drive signal output for the BYPASS 2ch input signal "H": BYPASS 2ch on
O
Relay drive signal output for the BYPASS 5.1ch input signal "H": BYPASS 5.1ch on
O
LED drive signal output of the STANDBY LED (D809) "L": LED on
O
LED drive signal output of the input 1 LED (D810) "L": LED on
O
LED drive signal output of the input 2 LED (D811) "L": LED on
O
LED drive signal output of the BYPASS 5.1ch input LED (D812) "L": LED on
O
LED drive signal output of the BYPASS 2ch input LED (D813) "L": LED on
O LED drive signal output of the MUTING LED (LED on S802) "L": LED on
O
LED drive signal output of the master volume LED (D815) "L": LED on
I
Test input terminal (fixed at "L")
System reset signal input from the reset signal generator (IC805) "L": reset
I
For several hundreds msec. after the power supply rises, "L" is input, then it changes to "H"
I
Main system clock input terminal (8 MHz)
O Main system clock output terminal (8 MHz)
—
Ground terminal
I
Reference voltage (+5V) input terminal
I
INPUT SELECTOR switch (S801) input terminal "H": input 1
I INPUT SELECTOR switch (S801) input terminal "H": input 2
I
INPUT SELECTOR switch (S801) input terminal "H": BYPASS 5.1ch input
I
INPUT SELECTOR switch (S801) input terminal "H": BYPASS 2ch input
I
MUTING switch (S802) input terminal "L" is input when key pressing
I
WOOFER LEVEL up switch (S805) input terminal "L" is input when key pressing
I
REAR L/R LEVEL up switch (S804) input terminal "L" is input when key pressing
I
CENTER LEVEL up switch (S803) input terminal "L" is input when key pressing
Relay drive signal output for the +12 dB gain control (for WOOFER input signal)
O
"H": +12 dB on
Relay drive signal output for the +6 dB gain control (for WOOFER input signal)
O
"H": +6 dB on
I
Sircs remote control signal input for the S-LINK control A1
O Sircs remote control signal output for the S-LINK control A1
I
Not used (fixed at "L")
I
Remote control signal input from the remote control receiver (IC804)
O Motor drive signal output to the volume motor drive (IC803) (volume up direction)
O Motor drive signal output to the volume motor drive (IC803) (volume down direction)
I
Trigger input terminal
O
Serial clock signal output to the EEPROM (IC802)
I/O
Two-way data bus with the EEPROM (IC802)
—
Power supply terminal (+5V)
Description
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