Sony HCD-VM330AV, Руководство по обслуживанию

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HCD-VM330AV
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MAIN BOARD IC801 M30622MGA-A57FP (SYSTEM CONTROLLER)
Pin No. Pin Name I/O Description
1 NC — Not used (open)
2 LOAD POS O
Loading motor drive signal (load-out direction) output the motor driver (IC881)
3 LOAD NEG O
Loading motor drive signal (load-in direction) output the motor driver (IC881)
4 RMC I Remote control signal input from the remote control receiver (IC702)
5 TABLE POS O
Table motor drive signal (counterclockwise) output to the motor driver (IC881)
6 LOAD IN SW I
Load in/out detect switch (S842) input “L”: load in
7 LOAD OUT SW I Load in/out detect switch (S842) input “L”: load out
8 — —
Not used (fixed at “L”)
9 CNVSS —
Not used
10 SUBXIN I Sub system clock input terminal (32.768 kHz)
11 SUBXOUT O
Sub system clock output terminal (32.768 kHz)
12 RESET I
System reset signal input from the reset signal generator (IC802) “L”: reset
For several hundreds msec. after the power supply rises, “L” is input, then it changes to “H”
13 XOUT O Main system clock output terminal (16 MHz)
14 VSS —
Ground terminal
15 XIN I
Main system clock input terminal (16 MHz)
16 VCC — Power supply terminal (+5V)
17 NC —
Not used (fixed at “H”)
18 T-SENS2 I
Table position sensor (IC13) input terminal
19
C-SCOR
I
Subcode sync (S0+S1) detection signal input terminal Not used (open)
20
KB-SCL
O
Serial data transfer clock signal output to the KEYBOARD (J801)
21 C-MUTE O
Muting on/off control signal output terminal “H”: muting (center speaker)
22 PWM1 O
Focus servo drive PWM signal output terminal Not used (open)
23 R-MUTE O Muting on/off control signal output terminal “H”: muting (rear speakers)
24 PWM2 O
PWM signal output terminal Not used (open)
25 PL-RQ O
Serial data latch pulse output to the M62464FP (IC301)
26 PWM3 O RFDC PWM signal output terminal Not used (open)
27 PL-DATA O
Serial data output to the M62464FP (IC301)
28 PL-CLK O
Serial data transfer clock signal output to the M62464FP (IC301)
29 IIC CLK I/O
Communication data reading clock signal input or transfer clock signal output with the video CD
controller (IC502) and display controller (IC701)
30 IIC DATA I/O
Communication data bus with the video CD controller (IC502) and display controller (IC701)
31 NC —
Not used
32 C-SQSO I Subcode Q data input terminal Not used
33
C-SQCK
O
Subcode Q data reading clock signal output terminal Not used
34 FRONT O
Selection signal output of the rear speaker output signal to the BU4066BC (IC307)
“H”: Same the front channel
35 REAR O
Selection signal output of the rear speaker output signal to the BU4066BC (IC307)
“H”: Rear channel
36 KB-SDA
I Keyboard data input from the KEYBOARD (J801)
37 KB-CTRL
O Keyboard control signal output to the KEYBOARD (J801)
38 S/W-MUTE O Muting on/off control signal output terminal “H”: muting (super woofer)
39 NC —
Not used (open)
40 R-RELAY O
Relay drive signal output for the surround speaker (rear and center) protection “H”: on
41 NC — Not used (fixed at “L”)
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