Read Panasonic CQ-C5401W / CQ-C5301W Service Manual online
Pin
No.
Port
Description
I/O
Volt (V)
FM
AM
CD
92 EP SK
(NC)
-
-
-
-
-
93 SUB W U
REQ/
LCD CE
LCD CE
Sub Wake-up request
O
0
0
0
94 DISPM
CNT
Power supply control for
display
display
O
0
0
0
95 EJE ILL
(NC)
-
-
-
-
-
96 Rotary 1
Rotary Encoder 1
I
4.9
5
5
97 Rotary 2
Rotary Encoder 2
I
4.9
4.9
5
98 S LED
Security LED control output
O
0
0
0
99 PANEL
IN
PANEL detect
I
5.3
5.3
5.3
100 EP CS
(NC)
-
-
-
-
-
10.2. Display Block
IC901 : YESAM168
Pin No.
Port
Description
I/O
(V)
1-35
SEG3-37
LCD segment data
O
2.5
36-51
SEG40-55
LCD segment data
O
2.5
52-55
COM1-4
LCD common
O
2.5
56,57
SEG39,38
Not used
-
-
58-61
KS3-6
Key scan
O
5.0
62-66
Kl1-5
Key data
I
0
67
VDD
+5V power supply
-
5.0
68
VLCD
VLCD terminal
-
4.8
69
VLCD1
VLCD1 terminal
-
3.3
70
VLCD2
VLCD2 terminal
-
1.7
71
VSS
Ground
-
0
72
TEST
(Connecting to ground)
-
0
73
OSC
Oscillator terminal
-
3.9
74
RESET
Reset
I
4.8
75
DO
Key data output
O
5.0
76
CE
LCD driver chip enable
I
0
77
CLK
LCD clock
I
4.9
78
DI
LCD data
I
4.9
79,80
SEG1,2
LCD segment data
O
2.5
10.3. CD Servo Block
IC401 : YESAM275
Pin
No.
Port
Descriptions
I/O
(V)
1
CVSS1
GND
-
0
2
-
-
-
-
3
CVSS2
GND
-
0
4
DVDD1
I/O system (3.3V) power supply
-
3.3
5
A10
Address bus of FLASH ROM
O
0
6
-
-
-
-
7
A11
Address bus of FLASH ROM
O
3.3
8
A12
O
3.3
9
A13
O
3.3
10
A14
O
3.3
11
A15
O
3.3
12
/CVDD1
CORE CPU system (1.6V) power
supply
supply
-
1.6
13
-
-
-
-
14
DVSS1
GND
-
0
15
CVSS3
GND
-
0
16
/CVDD2
I/O system (3.3V) power supply
-
1.6
17
-
-
-
-
18
-
-
-
-
19
READY
-
-
3.3
20
/PS
FLASH ROM selection signal
O
3.3
21
-
-
-
-
22
-
-
-
-
23
R/W
Lead/light signal to FLASH ROM
O
3.3
24
/MSTRB
Memory access signal
O
3.3
25
-
-
-
-
26
/MSC
-
-
3.3
27
MUTE
Mute signal output (H:Mute on)
O
0
28
-
-
-
-
29
-
-
-
-
30
/HOLD
-
-
3.3
31
BIO
SUBO input
I
0
32
MP/MC
Operation mode setting (external
pull-up)
pull-up)
I
3.3
33
DVDD2
I/O system (3.3V) power supply
-
3.3
34
CVSS4
GND
-
0
35
BD R1
GND
I
0
36
-
-
-
-
37
CVSS5
GND
-
0
38
-
-
-
-
39
-
-
-
-
40
DVSS2
GND
-
0
41
CLK C M AUDIO bit clock input
I
1.6
42
SCK
Clock input
I
3.3
43
LRCK C
M
M
AUDIO L/R identifying signal input
I
1.6
44
CDFS
Serial frame sink signal input
I
2.6
45
DATA
CM
CM
AUDIO serial data input
I
1.6
46
-
-
-
-
47
SI
Serial data input
I
0
48
CLK M C AUDIO bit clock output
O
1.6
49
SCK
Clock input
I
3.3
50
CVSS6
GND
-
0
51
-
-
-
-
52
CVDD3
CORE CPU system (1.6V) power
supply
supply
-
1.6
53
LRCK M
C
C
AUDIO L/R identifying signal output
O
1.6
54
CDFS
Serial frame sink signal input
I
2.4
55
-
-
-
-
56
DVDD3
I/O system (3.3V) power supply
-
3.3
57
DVSS3
GND
-
0
9
CQ-C5401W / CQ-C5301W
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