Read Panasonic CQ-C3453W Service Manual online
6
1.1.2.
Display Block
IC901 : C0HBA0000195
1.1.3.
CD Servo Block
IC101 : YESAM337
Pin No.
Port
Description
I/O
(V)
1
(NC)
Not connected
-
-
2
SEG40
LCD segment data
O
2.4
3 - 8
SEG6-1
LCD segment data
O
2.4
9 - 39 SEG39 -9
LCD segment data
O
2.4
40 - 43 COM4 -1
LCD common
O
2.4
44,45
SEG8,7
LCD segment data
O
2.4
46 - 49 KS3-6
Key scan
O
4.7
50 - 54 Kl1-5
Key data
I
0
55
TEST
(Connecting to ground)
-
0
56
VDD
+5V power supply
-
4.7
57
VDD1
VDD1 filter terminal
-
3.1
58
VDD2
VDD2 filter terminal
-
1.6
59
VSS
Ground
-
0
60
OSC
Oscillator terminal
-
3.7
61
DO
Key data output
O
4.7
62
CE
LCD driver chip enable
I
0
63
CLK
LCD clock
I
4.7
64
DI
LCD data
I
4.7
Pin
No.
Port
Description I/O
(V)
1
AVSS
GND
-
0
2
LD-MT
Loading Motor drive IC control 1
O
3.2
3
CNT
Loading Motor drive IC control 2
O
3.2
4
-
Not connected
-
-
5
LD-EJ
Loading Motor drive IC control
(Eject)
(Eject)
O
0
6
AMUTE
Mute signal output
O
0
7
-
Not connected
-
-
8
SBSY
DSP IC SBSY
O
0
9
-
Not connected
-
-
10
-
Not connected
-
-
11
TXD0
Serial data output
O
0
12
RXD0
Serial data input
I
0
13
CLK0
Clock input
I
2.9
14
-
Not connected
-
-
15
-
Not connected
-
-
16
-
Not connected
-
-
17
AMD
-
-
3.2
18
DVCC
Power supply (3.3V)
-
3.2
19
X2
Crystal oscillator
-
1.3
20
DVSS
GND
-
0
21
X1
Crystal oscillator
-
1.3
22
AMI
-
-
3.2
23
RESET
Reset
I
3
24
-
Not connected
-
-
25
-
Not connected
-
-
26
NMI
-
-
3.2
27
-
Not connected
-
-
28
STBY
DSP IC STBY
O
0
29
RST
DSP IC RST
O
3.2
30
CCE
DSP IC CCE
O
2.6
31
BUCK
DSP IC CK
O
2.8
32
BUS3
DSP IC BUS3
O
2.8
33
BUS2
DSP IC BUS2
O
2.8
34
BUS1
DSP IC BUS1
O
2.8
35
BUS0
DSP IC BUS0
O
2.9
36
RESET SW
Mechanics deck REST SW input
I
3.2
37
SW1
Mechanics deck SW1 input
I
0
38
SW2
Mechanics deck SW2 input
I
0
39
CONT (P13)
DSP IC power control 1
O
3.2
40
-
Not connected
-
-
41
-
Not connected
-
-
42
-
Not connected
-
-
43
CONT (P17)
DSP IC power control 2
O
3.2
44
PIO0
DSP IC PIO0
O
0
45
ZDET
LOAD detect
I
0
46
-
Not connected
-
-
47
-
Not connected
-
-
48
-
Not connected
-
-
49
-
Not connected
-
-
50
BOOT
-
-
3.2
51
-
Not connected
-
-
52
-
Not connected
-
-
53
-
Not connected
-
-
54
-
Not connected
-
-
55
-
Not connected
-
-
56
-
Not connected
-
-
57
-
Not connected
-
-
58
-
Not connected
-
-
59
CDFS
Serial frame sink signal input (CD
ON)
ON)
I
2.3
60
P50/AN0
Reference voltage
I
0.3
61
P51/AN0
Loading motor detect
I
2.1
62
P52/AN2
Ground
-
0
63
P53/AN3
Ground
-
0
64
AVCC
Power supply (3.3V)
-
3.2
Pin
No.
Port
Description I/O
(V)
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