Read Panasonic CQ-C7303W Service Manual online
Pin
No.
Port
Part Name &
Description
I/O
FM
AM
CD
89 NC
Not connected
-
-
-
-
90 EP DO
EPROM comuni. data
input
input
O/I
0
0
0
91 NC
Not connected
-
-
-
-
92 NC
Not connected
-
-
-
-
93 SUB RESET
Reset for display CPU
O
4.9
5
4.9
94 DISPM CONT
5V power control for
Display
Display
O
0
0
0
95 NC
Not connected
-
-
-
-
96 NC
Not connected
-
-
-
-
97 NC
Not connected
-
-
-
-
98 S LED
Security LED drive
O
0
0
5
99 ANT CONT
Power control for
antenna motor
antenna motor
O
5.2
5.2
5.2
100 NC
Not connected
-
-
-
-
10.2. Display Block
IC900 C2CBJH000133
Pin
No.
Port
Part Name & Description
I/O
(V)
1
A18
A18 in Address bus
O
1.5
2
A19
A19 in Address bus
O
1.7
3
A20
A20 in Address bus
O
1.3
4
A21
Not connected
-
-
5
A22
Not connected
-
-
6
A23
Not connected
-
-
7
A0
A0 in address bus for LCD
O
1.3
8
A1
A1 in Address bus
O
0.3
9
VSS
GND
-
-
10
A2
A2 in Address bus
O
0.4
11
A3
A3 in Address bus
O
0.4
12
A4
A4 in Address bus
O
0.4
13
A5
A5 in Address bus
O
1.3
14
A6
A6 in Address bus
O
0.4
15
A7
A7 in Address bus
O
0
16
A8
A8 in Address bus
O
1.3
17
A9
A9 in Address bus
O
0
18
A10
A10 in Address bus
O
0
19
A11
A11 in Address bus
O
1.5
20
A12
A12 in Address bus
O
1.7
21
VCC
+3.3V Power supply
-
3.5
22
A13
A13 in Address bus
O
1.4
23
A14
A14 in Address bus
O
1.5
24
A15
A15 in Address bus
O
1.7
25
SIN0
Serial data from Main CPU or Flash
writer
writer
I
0.5
26
SOT0
Serial data to Main CPU or Flash
writer
writer
O
1.8
27
SCK0
Serial clock for Flash writer
I
3.5
28
NC
Not connected
-
-
29
FRASH
RESET
RESET
Reset for Flash memory
O
3.5
30
KS1
Key scan 1
O
0
31
NC
Not connected
-
-
32
NC
Not connected
-
-
33
AVCC
+3.3V Power supply
-
3.5
34
AVRH
+3.3V Power supply
-
3.5
35
AVSS/AVRL GND
-
-
36
TH DETECT Pulled up to H
-
1.3
37
KS2
Key scan 2
O
0
38
KS3
Key scan 3
O
0
39
NC
Not connected
-
-
40
VSS
GND
-
-
41
KI5
Key-in return 5
I
0
42
KI4
Key-in return 4
I
0
43
KI3
Key-in return 3
I
0
44
KI2
Key-in return 2
I
0
45
NC
Pulled down to L
-
0
46
NC
Pulled up to H
-
3.5
47
MD0
Operating mode control 0 from
Flash writer
Flash writer
I
3.5
48
MD1
Operating mode control 1: pulled up
to H
to H
-
3.5
49
MD2
Operating mode control 2 from
Flash writer
Flash writer
I
0
50
NC
Not connected
-
-
51
ROTARY 1 Volume-up detection from Rotary
encoder
I
2.5
52
ROTARY 2 Volume-down detection from Rotary
encoder
I
2.5
53
NC
Not connected
-
-
54
NC
Not connected
-
-
55
NC
Not connected
-
-
56
NC
Not connected
-
-
57
NC
Not connected
-
-
9
CQ-C7303W
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