Panasonic CQ-C1300U Service Manual page 19

http://tsn.pasc.panasonic.com/viewing/NAOT/CQ-C1300U/SVC/s0901000000.html
9.1 Main Block
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IC601 : YESAM229
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Pin No. Port
1 CDC SENS CD changer detect
2 ST Radio station detect
3 EJECT Eject SW
4 AVSS Ground
5 EXT.MUTE External mute
6 CDC 1/2 (Ground pull down)
7 AVREF (Conecting to +5V)
8 SUB SO LCD data
9 LCD DI LCD data
10 SUB SI LCD clock
11 CH DATA (Ground pull down)
12 NC
13 CH CLK (Ground pull down)
14 CH REM (Ground pull down)
15 NC
16 CD SO CD data output
17 CD SI CD data input
18 CD SCK CD clock
19 LCD CE LCD chip enable
20 CD RST CD reset
21 AMP CNT Amp control signal
22 ANT CNT ANT control signal
23 AMP MUTE Amp mute control
24 CD STB CD strobe
25 CD A0 CD A0
26 NC
Description I/O
FM AM CD
I 4.9 4.9 4.9
I 4.9 4.9 4.9
I
-
O 5.0 5.0 5.0
- 5.1 5.1 5.1
- 5.1 5.2 5.2
I 5.1 5.1 5.1
O 5.0 5.0 5.0
O 5.1 5.1 5.1
-
- -
-
- 5.1 5.1 5.1
- -
I 2.8 2.8 2.8
O
O 5.0 5.0 5.0
O
O 5.1 5.1 5.1
O 5.1 5.1 5.1
O 5.1 5.1
O 5.1 5.1 5.1
O 3.8 3.8 3.9
O
- -
(V)
0 0 0
0 0 0
0 0 0
- - -
0 0 0
- - -
0 0 0
0 0 0
0
0 0 5.1
- - -