Read Panasonic CQ-C7303W Service Manual online
Pin
No.
Port
Part Name & Description
I/O
(V)
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
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
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
1.0
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
99
A16
A16 in Address bus
O
3.0
100 A17
A17 in Address bus
O
1.7
10.3. CD Servo Block
IC101 : YESAM337
Pin No.
Port
Descriptions
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
TXD1
Serial data output
O
3.2
15
RXD1
Serial data input
I
0
16
CLK1
Clock input
I
0
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
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)
(P13)
DSP IC power control 1
O
3.2
40
-
Not Connected
-
-
41
-
Not Connected
-
-
42
-
Not Connected
-
-
43
CONT
(P17)
(P17)
DSP IC power control 2
O
3.2
44
PIO0
DSP IC PIO0
O
0
45
ZDET
LOAD detect
I
0
46-49
-
Not Connected
-
-
50
-
-
-
3.2
51-58
-
Not Connected
-
-
59
CDFS
Serial frame sink signal input
(CD ON)
(CD ON)
I
2.3
60
P50/AN0 Reference voltage
I
0.3
61
P51/AN0 Loading motor detect
I
2.1
62
P52/AN2
-
-
0
63
P53/AN3
-
-
0
64
AVCC
Power supply (3.3V)
-
3.2
10
CQ-C7303W
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