Read Sony CFD-S03CP / CFD-S03CPL (serv.man2) Service Manual online
27
CFD-S03CP/S03CPL
• IC801 MB90802NPF-G-136E1 (SYSTEM CONTROL) (MAIN BOARD (2/3))
Pin No.
Pin Name
I/O
Pin Description
1
O-POWER
O
System power control output H: Power ON
2
FM-AM SHIFT
O
system clock shift control signal output
3
A-MUTE
O
A-mute signal output H: mute on
4
O-MP3-M-MUTE
O
Spindle and sledding motor drive mute control signal output
5
IO-MP3-BUS0
I/O
CD-DSP-MP3 serial data input/output
6
IO-MP3-BUS1
I/O
CD-DSP-MP3 serial data input/output
7
IO-MP3-BUS2
I/O
CD-DSP-MP3 serial data input/output
8
IO-MP3-BUS3
I/O
CD-DSP-MP3 serial data input/output
9
I-RMC
I
Remote commander receiver data input
10
NC
—
Not used (Open)
11
NC
—
Not used (Open)
12
I-MP3-REQ
O
MP3 REQ signal output
13
X0A
—
Not used (Pull down)
14
X1A
—
Not used (Open)
15
VCC
—
Power supply (+3.3 V)
16
VSS
—
Ground
17
M-BASS
O
MEGA BASS control signal output
18
LID-OPEN
I
CD door open/close switch signal input L: Close
19
O-TU-CE
O
Tuner PLL chip enable signal output
20
O-TU-CLK
O
Tuner PLL serial transfer clock output
21
O-TU-DATA
O
Tuner PLL serial data output
22
I-TU-COUNT
I
Tuner PLL serial data input
23
O-CD-CLT
O
CD power control signal output H: CD ON
24
TAPE PLAY
I
Tape play switch signal input
25
TAPE REC
I
Tape record switch signal input H: REC
26
O-MP3-BUCK
O
MP3 serial transfer clock output
27
I-MP3-CCE
O
Chip enable output
28
I-MP3-XRST
O
Reset signal output
29
NC
—
Not used (Open)
30
NC
—
Not used (Open)
31
NC
—
Not used (Open)
32
AVCC
—
Power supply (+3.3 V)
33
VOL DATA
O
Volume command serial data output
34
VOL CLK
O
Volume command serial transfer clock output
35
AGND
—
Ground
36
REG-CHK
I
Power supply CD 3.3V check signal input
37
BTT-CHK-H
I
Power supply 9V check signal input
38
V-CHECK
I
Power supply 6V check signal input
39
I-KEY0
I
Key input
40
I-KEY1
I
Key input
41
I-KET2
I
Key input
42
WAKE-UP
I
Key wake-up signal input
43
I-MP3-SBSY
I
Sub code block sync signal input
44
VSS
—
Ground
45
AC-CHK
I
AC IN check signal input
46
SDA
I/O
EEPROM serial data input/output
47
SCL
O
EEPROM transfer clock output
48
I-SUFFIX
I
Suffix distinction input
49
ISS1
O
ISS control signal output
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