Read Panasonic CQ-C7353W Service Manual online
6
4.1.2.
Display Block
IC900
： C2CBYY000150
88 ILL SENS
Pulled up to H
-
5
5
5
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
-
-
-
-
Pin
No.
Port
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
O
1.8
27 SCK0
Serial clock for Flash writer
I
3.5
28 NC
Not connected
-
-
29 FRASH
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
-
-
Pin
No.
Port
Description
I/O
FM
AM
CD
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
writer
I
3.5
48 MD1
Operating mode control 1: pulled up to
H
H
-
3.5
49 MD2
Operating mode control 2 from Flash
writer
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
-
-
58 FLASH CE Chip enable for Flash memory
O
3.4
59 LCD CS
LCD chip select
O
3.4
60 NC
Not connected
-
-
61 NC
Not connected
-
-
62 NC
Not connected
-
-
63 NC
Not connected
-
-
64 VLCD
CONT
Power control for LCD
O
3.4
65 NC
Not connected
-
-
66 NC
Not connected
-
-
67 NC
Not connected
-
-
68 NC
Not connected
-
-
69 OE/RD
Output enable for Flash memory or
Read strobe for LCD
Read strobe for LCD
O
3.4
70 LCD WR
Write strobe for LCD
O
3.4
71 FLASH WE Write enable for Flash memory
O
3.4
72 NC
Not connected
-
-
73 LCD
RESET
Reset for LCD
O
3.4
74 FLASH RY/
BY
Ready/Busy from Flash memory
I
3.4
75 RST
Reset
I
3.5
76 NC
Not connected
-
-
77 NC
Not connected
-
-
78 X0A
GND
-
-
79 VSS
GND
-
-
80 X0
System clock (12.5MHz)
I
1.3
81 X1
System clock (12.5MHz)
O
1.5
82 VCC
+3.3V Power supply
-
3.5
83 D0
D0 in Data bus
I/O
0.9
84 D1
D0 in Data bus
I/O
0.9
85 D2
D0 in Data bus
I/O
1.1
86 D3
D0 in Data bus
I/O
0.9
87 D4
D0 in Data bus
I/O
1
88 D5
D0 in Data bus
I/O
1.1
89 D6
D0 in Data bus
I/O
1.1
90 D7
D0 in Data bus
I/O
0.9
91 D8
D0 in Data bus
I/O
0.9
92 D9
D0 in Data bus
I/O
0.9
93 D10
D0 in Data bus
I/O
0.9
94 D11
D0 in Data bus
I/O
0.5
95 D12
D0 in Data bus
I/O
0.9
96 D13
D0 in Data bus
I/O
0.7
97 D14
D0 in Data bus
I/O
0.7
98 D15
D0 in Data bus
I/O
0.7
Pin
No.
Port
Description
I/O
(V)
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