Sony HCD-ZX70DVD, Руководство по обслуживанию, Страница: 132 / 136

34
• MAIN BOARD IC401 M30620MCA-A53FP (SYSTEM CONTROLLER)
Pin No. Pin Name I/O Description
1 CD-DATA O Serial data output terminal Not used (open)
2 CD-CLK O
Serial data transfer clock signal output terminal Not used (open)
3 XLT O
Serial data latch pulse output terminal Not used (open)
4 AC CUT I
AC off detection signal input from the reset signal generator (IC501)
5 NC —
Not used (open)
6 SQ-DATA-IN I
Sub-code Q data input terminal Not used (fixed at “L”)
7 SQ-CLK O
Sub-code Q data reading clock signal output terminal Not used (fixed at “L”)
8 GND —
Ground terminal
9 CNVSS —
To flash memory connector
10 XC-IN I
Sub system clock input terminal (32.768 kHz)
11 XC-OUT O
Sub system clock output terminal (32.768 kHz)
12 RESET I
Reset signal input from the system controller (IC501) “L”: reset For several hundreds msec.
after the power supply rises, “L” is input, then it changes to “H”
13 X-OUT O
Main system clock output terminal (16 MHz)
14 GND —
Ground terminal
15 X-IN I
Main system clock input terminal (16 MHz)
16 VCC —
Power supply terminal (+5V)
17 NMI I
Non-maskable interrupt input terminal (fixed at “H” in this set)
18 WAKE UP I
System wake up signal input from the display controller (IC701)
19 SCOR I
Subcode sync (S0+S1) detection signal input terminal Not used (fixed at “L”)
20 RDS-INT I
Interrupt status input from the tuner pack (AEP and UK models only)
21 RDS-DATA I
Serial data input from the tuner pack (AEP and UK models only)
22 CD-POWER O
Power on/off control signal output for the DVD section “H”: power on, “L”: standby
23 STBY-RELAY O
Standby on/off control signal output terminal “L”: standby
(US, Canadian, AEP and UK models only)
24 PROTECT I
Protect on/off signal input terminal “L”: protect
25 STK-MUTE O
Power amplifier on/off selection signal output terminal “H”: power amplifier on
26 FRONT-RY O
Front speakers on/off relay drive signal output terminal “H”: front speakers on
27 NC —
Not used (open)
28
SURROUND
RELAY
O
Rear and center speakers on/off relay drive signal output terminal
“H”: rear and center speakers on
29 IIC-CLK I/O
Communication data reading clock signal input or transfer clock signal output with the IF
controller (IC1) and display controller (IC701)
30 IIC-DATA I/O
Communication data bus with the IF controller (IC1) and display controller (IC701)
31 TXD1 O
Communication data transmit output to external flash memory
32 SQ-DATA I
Sub-code Q data input from external flash memory
33
SQ-CLK/OVER DVD
I
DVD data over signal input from the IF controller (IC1)
34 RST1 O
Reset signal output to external flash memory
35 HEAD-PHONE I
Headphone detection signal input terminal “H”: headphone on
36 LINE-MUTE O
Line muting on/off signal output terminal “L”: muting on
37 DVD-RST O
DVD reset signal output to the IF controller (IC1)
38 TEST I/O
For test terminal
39 CLOCK-OUT O
For clock check terminal (open)
40 PL-LAT O
Serial data latch pulse output to the M62464FP (IC201)
41 PL-CLK/SUR1 O
Serial data transfer clock signal output to the M62464FP (IC201)
42 PL-DATA/SUR2 O
Serial data output to the M62464FP (IC201)