CQ-JH8160Z - Panasonic Car Audio Service Manual (repair manual). Page 10

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Pin
No.
Port
Description
I/O
Vol. (V)
FM AM
TAPE
CD
88 ACC DET
ACC detection
I
0
0
0
0
89 CD EJECT
CD disc eject
I
5.1
5.1
5.1
5.1
90 RESET(FLAS
H RESET)
Reset input
I
0
0
0
0
91 CDCH SI
CD changer
serial input
I
5.2
5.2
5.2
5.2
92 MAYDAY-IN
N.C
I
5.1
5.1
5.1
5.1
93 TAPE EJECT
Cassette tape
eject
I
5.1
5.1
5.1
5.1
94 LCD SI(DI)
LCD serial input
I
5.1
5.1
5.1
5.1
95 REAR RXD
Rear
communication
O
0
0
0
0
96 REAR TXD
Rear
communication
O
5.1
5.1
5.1
5.1
97 LCD CLK
Shift clock for
LCD data
O
5.1
5.1
5.1
5.1
98 LCD SO(DO)
LCD serial
output
I
0
0
0
0
99 LCD CE1
LCD driver
enable 1
I
0
0
0
0
100 LCD CE2
LCD driver
enable 1
I
0.8
0.8
0.8
0.8
8.2. Display Block
IC901 : C0HBA0000016
Pin No.
Port
Description
I/O
(V)
1-4
P1/S1-P4/S4 N.C
O
-
5
S5
N.C
O
-
6-40
S6-S40
LCD segment
O
2.6
41
COM1
LCD Common
O
2.6
42
COM2
LCD Common
O
2.6
43
COM3
LCD Common
O
2.6
44
KS1/S41
LCD segment
O
2.6
45
KS2/S42
Key data output
O
5.1
46-49
KS-KS6
Key data output
O
5.1
50
KI1(NC)
-
-
-
51-54
KI1-KI5
Key data input
I
0
55
TEST
(Connecting to ground)
-
0
56
VDD
+5V power supply
-
5.1
57
VDD1
+5V power supply
-
3.4
58
VDD2
+5V power supply
-
1.8
59
VSS
(Connecting to ground)
-
0
60
OSC
CR Oscillator
-
4
61
D0
LCD data output
O
5.1
62
CE
LCD driver chip enable
I
0
63
CL
Shift clock for LCD data
I
5.1
64
DI
LCD data input
I
0
IC951 : C0HBA0000016
Pin No.
Port
Description
I/O
(V)
1
P1/S1
Front LED on/off
O
5.0
2
P2/S2
Rear LED on/off
O
0
3
P3/S3
CD LED on/off
O
0
4
P4/S4
N.C
-
-
5
S5
LCD segment
O
2.6
6-37
S6-S37
LCD segment
O
2.6
38-40
S38-S40
N.C
-
-
41
COM1
LCD Common
O
2.6
42
COM2
LCD Common
O
2.6
43
COM3
LCD Common
O
2.6
44
KS1/S41
N.C
-
-
45
KS2/S42
N.C
-
-
46-49
KS-KS6
N.C
-
|
50
KI1
(Connecting to ground)
-
0
51-54
KI1-KI5
(Connecting to ground)
-
0
55
TEST
(Connecting to ground)
-
0
56
VDD
+5V power supply
-
5.1
57
VDD1
+5V power supply
-
3.4
58
VDD2
+5V power supply
-
1.7
59
VSS
(Connecting to ground)
-
0
60
OSC
CR Oscillator
-
4.0
61
D0
LCD data output
O
5.1
62
CE
LCD driver chip enable
I
0.8
63
CL
Shift clock for LCD data
I
5.1
64
DI
LCD data input
I
0
10
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