Sony CXFD-S03CP Service Manual page 37

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• IC801 MB90802NPF-G-109E1 (SYSTEM CONTROL) (MAIN BOARD (2/3))
Pin No. Pin Name
1 O-POWER
2 FM/AM SHIFT
3 A-MUTE
4 CD-XRST
5 O-DATA-MP3
6 O-CLK-MP3
7 I-DATA-MP3
8 I-CD-XLAT
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10 O-XLAT-MP3
11 O-STBY-MP3
12 O-RQ-MP3
13
14
15
16
17 M-BASS
18 LID-OPEN
19 O-TU-CE
20 O-TU-CLK
21 O-TU-DATA
22 I-TU-COUNT
TE
L 13942296513
23 O-CD-CLT
24 TAPE PLAY
25 TAPE REC
26 O-CD-XTCN
27 I-RQ-MP3
28 I-ACK-MP3
29 I-CD-SENS
30 O-CD-CLK
31 O-CD-CMD
32
33 VOL DATA
34 VOL CLK
35
36 REQ-CHK
37 BTT-CHK-H
38 V-CHECK
39
40
41
42 WAKE-UP
43 I-CD-SCOR
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44
45 AC-CHK
46
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47
48 I-SUFFIX
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I/O
O System power control output
O system clock shift control signal output
O A-mute signal output
O CD reset signal output
O MP3 serial data output
O MP3 serial transfer clock output
I MP3 serial data input
I CD LAT signal output
I-RMC I Remote commander receiver data input
O MP3 LAT signal output
O CD mechanical mute signal output
O MP3 chip select signal output
X0A — Not used (Open)
X1A — Not used (Open)
VCC — Power supply (+3.3 V)
VSS — Ground
O MEGA BASS control signal output
I CD door open/close switch input
O Tuner PLL chip enable signal output
O Tuner PLL serial transfer clock output
O Tuner PLL serial data output
I Tuner PLL serial data input
O CD power control signal output
I Tape play switch signal input
I Tape record switch signal input
O CD DSP oscillation control signal output
I MP3 REQ signal input
I MP3 acknowledgment detect signal input
I CD SENS signal input
O CD command transfer clock output
O CD command data output
AVCC — Power supply (+3.3 V)
O Volume command serial data output
O Volume command serial transfer clock output
AGND — Ground
I Power supply CD 3.3V check signal input
I Power supply 9V check signal input
I Power supply 6V check signal input
I-KEY0 I Key input
I-KEY1 I Key input
I-KET2 I Key input
I Key wake-up signal input
I CD Q-data request signal input
VSS — Ground
I AC IN check signal input
x ao
y
SDA I/O EEPROM serial data input/output
i
SCL O EEPROM transfer clock output
I Suffix distinction input
ISS1 O ISS control signal output
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8
Pin Description
H: Power ON
H: mute on
Q Q
3 6 7 1 3
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CFD-S03CP/S03CPL
2 9 9 4 2 8
L: Close
1 5 0 5 8 2 9 9 4
H: CD ON
H: REC
m
co
9 9
2 8 9 9
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