CQ-EH2380A - Panasonic Car Audio Service Manual (repair manual). Page 7

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7.2. Display Block
IC901 : YEAMLC75853
Pin
No.
Port
Description
I/O
(V)
1, 2 S1, 2
Disc LED on/off
O
0
3
S3
Not connection
-
-
4-40 S4-40
LCD segment data
O
2.5
41-43 COM1-3
LCD common
O
2.5
44
S41
LCD segment data
O
2.5
45-49 KS2-6
Key strobe
O
0.9
50-53 KI1-4
Key-in data
I
0
54
KI5
(Connecting to ground)
-
0
55
TEST
(Connecting to ground)
-
0
56
VDD
+5V power supply
-
5.1
57
VDD1
LCD angle
-
3.3
58
VDD2
LCD angle
-
1.7
59
VSS
Ground
-
0
60
OSC
Oscillator terminal
-
3.9
61
DO
Key data output
O
4.1
62
CE
LCD driver chip enable
I
0
63
CLK
Shift clock for LCD data
I
0
64
DI
LCD data input
I
0
7
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