Panasonic CQ-C5303N Service Manual page 10

MUTE control
Pin Port Description
No.
68 AF MUTE AF mute control
69 HUB HUB control signal
CNT
70 CH CLK / CD changer clock /
SYSID3 System upgrade
ID3
71 CH DATA CD changer data
72 SYSID 1 System upgrade
ID1
73 CH REM CD changer remote O 0.9 1.2
74 SYSID 2 System upgrade
ID2
75 AMP CNT Amp power control O 4.8 4.8 4.8
76 LCD DI LCD data
77 LCD DO LCD data
78 LCD CLK LCD Clock
79 ANT CNT Antenna power
control
80 EXT.MUTE External mute
10.2. Display Block
IC901 : YEAMLC75884W
Pin Port
No.
1-51 SEG2-40 LCD segment data
52-55 COM1-4 LCD common
56,57 SEG39,38 Not used
58-61 KS3-6 Key scan
62-66 Kl1-5 Key data
67 VDD +5V power supply
68 VLCD VLCD terminal
69 VLCD1 VLCD1 terminal
70 VLCD2 VLCD2 terminal
71 VSS Ground
72 TEST (Connecting to ground)
73 OSC Oscillator terminal
74 RESET Reset
75 DO Key data output
76 CE LCD driver chip enable
77 CLK LCD clock
78 DI LCD data
79 P1 (NC)
80 SEG1 LCD segment data
10.3. CD Servo Block
I/O (V)
FM AM CD
O 4.8 4.8 4.8
O 4.8 4.8 4.8
I 0
I 0
I 4.8 4.8 4.8
I 4.8 4.8 4.8
O 4.6 4.6 4.6
I 4.8 4.8 4.8
O 4.7 4.7 4.7
O 4.8 4.8
O 4.8 4.8 4.9
Description I/O (V)
O
O
O
O
-
O
0 0
0 0
0
0
2.4
2.4
- -
4.8
I 0
- 4.8
- 4.8
- 3.2
- 1.6
- 0
- 0
- 3.4
I 4.8
4.8
I 0
I 4.6
I 4.6
- -
2.4
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