Read Sony HCD-WZ7AV Service Manual online
44
HCD-WZ7AV
• IC401 M30624MCN-A17FP (SYSTEM CONTROL)(MAIN BOARD)
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
I/O
I
—
—
I
—
—
—
—
—
I
O
I
O
—
I
—
I
I
O
I
—
—
—
O
O
O
O
O
O
O
—
—
—
—
O
I
O
O
O
I
O
I
I
O
O
I
O
O
O
O
Pin Name
MIC IN
MP3 LP
MP3 ACK
SIRCS
MP3 DATA OUT
MP3 DATA IN
MP3 CLK
BYTE
CN VSS
XC-IN
XC-OUT
RESET
X-OUT
VSS
X-IN
VCC
NMI
RDS INT
FUNC-SELECT
AC-CUT
SENS
CD-DATA
CD-CLK
IF-CS
V-MUTE
IF-OK
IF-RQ
IF-RESET
IIC-CLK
IIC-DATA
CAN’T USE
SQ-DATA-IN
SQ-CLK
SOFT-TEST
IF-DATA OUT
IF-DATA IN
IF-CLK
A-MUTE
CD-POWER
RDS-DATA
ST-MUTE
STEREO
TUNED
ST-CE
ST-DOUT
ST-DIN
ST-CLK
PL-REQ
PL-CLK
PL-DATA
Description
Microphone detection signal input
Not used
Not used
SIRCS signal input fromthe remote sensor (IC601)
Not used
Not used
Not used
External data bus width selection terminal
Processor modes switch terminal
Sub clock input terminal
Sub clock output terminal
System reset signal input
Main system clock output terminal
Ground terminal
Main system clock input terminal (16MHz)
Power supply terminal (+3.3V)
NMI input terminal (fixed at “H”)
RDS INT signal input (not used)
Function selection signal output to the selector (IC102)
AC cut detection signal input
Not used
Not used
Not used
Chip select signal output to the IC505
Video muting signal output to the video amplifier (IC307)
Acknowledge signal output to the IC505
Request signal output to the IC505
System reset signal output
IIC serial clock output
IIC serial data output
Not used (open)
Not used
Not used
Soft test teminal
Serial data output to the IC505
Serial data input from the IC505
Serial clock output to the IC505
Muting signal output
CD power supply control signal output (“H” : on, “L” : off)
RDS data input (not used)
Muting signal output to the tuner
Stereo detection signal input from the tuner (“L” : in, “H” : off)
Tuner tuned status signal input from the tuner (“L” : in, “H” : off)
Tuner chip enable signal output to the tuner
Data output to the tuner
Data input from the tuner
Clock output to the tuner
Request signal output to the sound processor (IC301)
Clock output to the sound processor (IC301)
Data output to the sound processor (IC301)
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