Read Panasonic CQ-JH4381K (serv.man2) Service Manual online
Pin
No.
Signal
Description
I/O
(V)
FM
AM
CD
93
CD EJECT H:CD-EJ OFF L:CD-EJ ON
I
5.0
5.0
5.1
94
(SIO)
L: input
O
-
-
-
95
NC
-
-
-
-
-
96
NC
-
-
-
-
-
97
PW-SCK
Power supply IC clock
output (H/L)
output (H/L)
O
0
0
0
98
PW-DATA Power supply IC data
output
O
0
0
0
99
PW-
LATCH
LATCH
Power supply IC data latch
signal output
signal output
O
5.0
5.0
5.1
100 PW-STBY
Power supply IC STBY
output
output
O
5.0
5.0
5.1
6.2. Display Block
IC901 YEAMLC75853
Pin No.
Name
Description
I/O
Volt (V)
1~32
S1~S32
LCD Segment
O
2.7
33~40 (NC)
-
-
-
41
COM1
LCD Common
O
2.7
42
COM2
LCD Common
O
2.7
43
COM3
LCD Common
O
2.7
44~47 KS1~KS4
Key Data Output
O
5.3
48,49
(NC)
-
-
-
50~53 K11~K14
Key Data Input
I
0
54,55
TEST
(Connect to Ground)
-
0
56
VDD
+5V Power Supply
-
5.3
57
VDD1
+5V Power Supply
-
3.5
58
VDD2
+5V Power Supply
-
1.8
59
VSS
(Connect to Ground)
-
0
60
OSC
CR Oscillator
-
3.9
61
DO
LCD Data Output
O
5.2
62
CE
Chip Enable
I
0.3
63
CLK
LCD Clock Input
I
0
64
DI
LCD Data Input
I
0
7
HONDA / CQ-JH4381K
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