Sony CSD-MP100 Service Manual page 21

• IC601 LC877480B-51F5-E (SYSTEM CONTROL) (MAIN BOARD)
Pin No. Pin Name
1 CQ-WRQ
2 MP3-INTB
3 CD-DO
4 CD-DI
5 CD-CL
6 MP3-CMDOUT
7 MP3-CMDIN
8 MP3-CL
9 MP3-CE
10 CD-CE
11 I-RES
12 XT1
13 XT2
14 VSS1
15 CF1
16 CF2
17 VDD1
18 O-CLKSFT
19 BATT-CHK-1
20 BATT-CHK-2
21 BATT-CHK-3
22 SDA
23 SCL
24 I-MATRIX
25 I-AC/DC
26 R-MUTE
27 I-HOLD
28 CD-TEST
29 I-REM
30 I-BEAT
31 R-COUNT
32 R-CLK
33 R-DATA
34 R-CE
35 (NCO)
36 O-BEAT1
37 O-BEAT2
38 to 45 (NCO)
46 CD
47 RMC
48 I-TAPE
49 CD-DOOR
50 SEG1
51 SEG2
52 SEG3
53 SEG4
54 VDD2
55 VSS2
56 SEG5
57 SEG6
58 SEG7
59 SEG8
I/O
I CD write request data input
I MP3 interrupt signal iput
O CD data output
I CD data input
O CD clock output
O MP3 command serial data output
I MP3 command serial data input
O MP3 command serial clock output
O MP3 command chip enable output
O CD chip enable output
I CPU reset input
I Crystal oscillator (32.768 kHz) input
O Crystal oscillator (32.768 kHz) output
— Ground
I Ceramic oscillator (4.19 MHz) input
O Ceramic oscillator (4.19 MHz) output
— Power supply pin (+3.3 V)
O CPU main clock shift output
I Battery check input
I Battery check input
I Battery check input
O EEPROM data output
O EEPROM clock output
I Tuner select matrix input
I AC/DC discrimination signal input
O Tuner IF mute signal output
I Hold mode detection signal input
I CD test mode discrimination signal input
I Remocon data input
I AM beat select detection signal input
I Tuner data input
O Tuner clock output
O Tuner data output
O Tuner chip enable output
O Not used. (Open)
O AM beat select signal output
O AM beat select signal output
— Not used. (Open)
— Not used. (Open)
I Remocon select signal input
I Tape play mode detection signal input
I CD door OPEN/CLOSE detection signal input
O LCD segment data output
O LCD segment data output
O LCD segment data output
O LCD segment data output
— Power supply pin (+3.3 V)
— Ground
O LCD segment data output
O LCD segment data output
O LCD segment data output
O LCD segment data output
Pin Description
CSD-MP100
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