Read Panasonic CQ-C8352N / CQ-C7302N Service Manual online
10.1. Main Block
IC601 : C2CBKG000018
Pin
No.
Port
Description
(I/O)
(V)
FM
AM
CD
1
PANEL OPEN PANEL OPEN detection
I
0
5.2
5.2
2
PANEL
CLOSE
CLOSE
PANEL CLOSE detection
I
0
0
5.2
3
NC
No Connection
-
-
-
-
4
BATT
BATT detection
I
4.8
5
5
5
ACC
ACC detection
I
4.8
5
5
6
SDA
Electronic VOL data
I/O
4.9
4.9
4.9
7
SCK
Electronic VOL clock
O
4.9
4.9
4.9
8
NC
No Connection
-
-
-
-
9
Vss
Power supply GND
I
0
0
0
10
ST
FM ST detection
I
5.1
5.2
5.2
11
PLL DI(MO)
PLL data output
O
0.6
0
0
12
PLL DO(MI)
PLL data input
I
5.2
5.2
5.2
13
PLL CLK
PLL clock output
O
4.9
4.9
4.9
14
PLL CE
PLL chip enable output
O
0
0
0
15
CD RST
CD deck reset output
O
4.9
4.9
4.9
16
SUB SI
SUB u-com Data trans
SO
0.6
0.6
0.8
17
NC
No Connection
-
-
-
-
18
SUB SO
SUB u-com data recept
SI
4.4
4.4
4.4
19
CH DATA
CD Data recept/FLASH
W SO
W SO
SI
1.6
1.6
1.6
20
CH CLK
CD clock
transmit/FLASH W CLK
transmit/FLASH W CLK
SCK 4.9
4.9
4.9
21
Vdd
Power supply
I
4.9
4.9
4.9
22
XM SI
CD Data transmit/FLASH
W SI
W SI
S0
0
0
0
23
SD SI
-
-
-
-
-
24
CD SCK
Clock recept from
Changer
Changer
SCK
0
0.4
0
25
CONDENSOR Capacitor for power
supply
-
3.3
3.3
3.3
26
CD SO
Data recept from
Changer
Changer
SI
0
0
0
27
CH STB
Changer stororb signal
input
input
INT
0
0
0
28
CD IN
DISC in detect
I
4.9
4.9
0.4
29
DECK V
CONT
CONT
DECK power supply
control output
control output
O
4.9
4.9
4.9
30
CD FS
Strobe signal for CD
communication
communication
O
3.7
3.7
3.7
31
NC
No Connection
-
-
-
-
32
Avdd
Power supply of D/A
converter
converter
I
5.1
5.1
5.1
33
AVREF
Reference voltage for
D/A converter
D/A converter
I
5.1
5.1
5.1
34
AVGND
Reference GND for D/A
converter
converter
I
0
0
0
35
AVSS
Grand for A/D and D/A
converter
converter
I
0
0
0
36
SD
FM/AM signal meter
signal input
signal input
A/D
0.2
0
0.3
37
INIT A
Initializ A (CQ-C7401U)
A/D
0
0
0
38
INIT B
Initializ B
A/D
0
0
0
39
A IN
SPE.ANA A.IN
A/D
0
0
0
40
Vss
GND
I
0
0
0
41
CD MUTE
CD deck mute detection
I
0
0
5.1
42
NC
No Connection
-
-
-
-
43
NC
No Connection
-
-
-
-
44
NC
No Connection
-
-
-
-
45
CD SW1
CD disc in detection
I
-
-
-
46
CD SW2
CD disc in detection
I
-
-
-
47
MOD0
Operating mode input 0
I
5.1
5.1
5.1
48
MOD1
Operating mode input 1
I
5.1
5.1
5.1
Pin
No.
Port
Description
(I/O)
(V)
FM
AM
CD
49
MOD2
Operating mode input 2
I
0
0
0
50
H STANDBY
External standby input
I
5
5
5
51
NC
No Connection
-
-
-
-
52
FP MOTOR1
Front open/close control
1
1
O
4.9
5
4.9
53
FP MOTOR2
Front open/close control
2
2
O
4.9
5
4.9
54
V CNT1
Panel driving voltage
control 1
control 1
O
0
0
5
55
V CNT2(NC)
No Connection
-
-
-
-
56
SA CLK
Control for Speana
acquisition
acquisition
O
5
5
4.9
57
EXT MUTE
TEL/NAVI MUTE input
I
5.3
5.2
5.2
58
AMP CONT
External AMP control
O
4.9
5
4.9
59
BZ-OUT
Buzzer output
PPG
0
0
0
60
ANT CONT
Motor antenna control
O
4.9
5
0
61
DIM1
Dimmer control output 1
O
0
0
0
62
DIM2
Dimmer control output 2
O
0
0
0
63
CDC REM
OUT
OUT
Remote control code
output to Changer
output to Changer
O
5
5
5
64
CDC SENS
CDC 1/2 detection
I
5.1
5.1
5.1
65
CDC 1/2
CDC 1/2 change output
O
0
0
0
66
NC
No Connection
-
-
-
-
67
M W UP
MAIN.WAKE.UP.REQ
input
input
I
5
4.9
5
68
NC
No Connection
-
-
-
-
69
RDS CLK
70
NC
No Connection
-
-
-
-
71
RDS DATA
-
-
-
-
72
MAIN CONT
MAIN power supply
control output
control output
O
4.9
4.9
4.9
73
INV CONT
INV power supply control
output
output
O
5
5
5
74
AF MUTE
Tr-MUTE control
O/I
5
5
5
75
RESET
Reset input
I
5
5
5
76
NC
No Connection
-
-
-
-
77
NC
No Connection
-
-
-
-
78
NC
GND
I
0
0
0
79
Vss
GND
I
0
0
0
80
X1
Crystal oscillator input
I
2
2
2
81
X2
Crystal oscillator output
O
2.5
2.5
2.5
82
Vdd
Power supply
I
5
5
5
83
P00
Pldaun port for writing
I
0
0
0
84
P01
Pull-up port for writing
I
5.1
5
5.1
85
VOFF DET
PWR-IC OFFSET
detection
detection
I
0
0
0
86
STBY
PWR-IC STBY control
output
output
O
5
5
5
87
AMP MUTE
PWR-IC MUTE control
output
output
O
0
0
0
88
ILL SENS
External dimmer control
input
input
I
5
5
5
89
SUBM CNT
3.3V control for SUB
microcomputer
microcomputer
O
5
5
5
90
NC
No Connection
-
-
-
-
91
NC
No Connection
-
-
-
-
92
NC
No Connection
-
-
-
-
93
S W UP
SUB.WAKE.UP.REQ
O
4.9
5
4.9
94
DISPM CNT
Power supply control
output of display 5V
output of display 5V
O/I
0
0
0
95
EJE ILL(NC)
No Connection
-
-
-
-
96
NC
No Connection
-
-
-
-
97
NC
No Connection
-
-
-
-
98
S LED
Security LED control
output
output
O
0
0
5
99
PANEL IN
PANEL detect
I
5.2
5.2
5.2
10 TERMINALS DESCRIPTION
9
CQ-C8352N / CQ-C7302N
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