Panasonic CQ-C3400U Service Manual page 6

Port Description
Pin
No.
1 CH SENS CD changer detect
2 SD/ST Radio station detect
3 EJECT Eject SW
4 AVSS Ground
5 EXT.MUTE External mute
6 CDC 1/2 (Ground pull down)
7 AVREF1 (Conecting to +5V)
8 SUB SO LCD data
9 LCD DI LCD data
10 SUB SI LCD clock
11 CDC CD Changer data
DATA
12 CD OSC CD OSC stop
STP
13 CH CLK (Ground pull down)
14 CDC CD Changer remote
REM control data
15 BZ OUT Buzzer signal
output
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 Amp mute control
MUTE
24 CD STB CD strobe
25 CD A0 CD A0
26 NC
27 NC
28 NC
29 NC
30 NC
31 NC
32 NC
33 VSS1 Ground
34 NC
35 NC
36 SCL Audio control serial
clock
37 SDA Audio control data
38 S LED S LED drive signal
I/O (V)
FM AM CD
I 5.0 5.0 5.0
I 5.0 5.0 5.0
I 5.0 5.0 5.0
- 0
O 5.0 5.0 5.0
- 5.0 5.0 5.0
- 5.0 5.0 5.0
I 5.0 5.0 5.0
O 5.0 5.0 5.0
O 5.0 5.0 5.0
O 0
O 5.2 5.2 0
- 0
O 5.2 5.2 5.2
O 0
I 5.0 5.0 0
O 0
O 5.2 5.0 5.0
O 0
O 0
O 5.2 5.1 5.2
O 5.2 5.2 0
O 5.2 5.2 5.2
O 0
O 0
- - -
- - -
- - -
- - -
- - -
- - -
- - -
- 0
- - -
- - -
O 5.2 5.2 5.2
O 5.2 5.2 5.2
O 0
0 0
0 0
0 0
0 0
0 3.3
0 0
0 5.2
0 4.6
0 5.0
- -
- -
- -
- -
- -
- -
- -
0 0
- -
- -
0 0
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