Read Panasonic CQ-C7353W Service Manual online
5
4 Technical Descriptions
4.1.
Terminals Description
4.1.1.
Main Block
IC601
： C2CBKG000035
Pin
No.
Port
Description
I/O
FM
AM
CD
1
PANEL OPEN
Panel open detection
I
0
5.2
5.2
2
PANEL CLOSE
Panel close detection
I
0
0
5.2
3
SUBM CNT
3.3V power control for
Display
Display
O
5
-
-
4
BATT
Battery power check
I
4.8
5
5
5
ACC
Acc. power check
I
4.8
5
5
6
SDA
Serial data for elec-
tronic volume
tronic volume
I/O
4.9
4.9
4.9
7
SCLK
Serial clock for elec-
tronic volume
tronic volume
O
4.9
4.9
4.9
8
CD MUTE
Signal mute from CD
deck
deck
I
5
5
5
9
Vss
GND
-
0
0
0
10 ST
FM stereo detection
I
5.1
5.2
5.2
11
PLL DI
Serial data to PLL
O
0.6
0
0
12 PLL DO
Serial data from PLL
I
5.2
5.2
5.2
13 PLL CLK
Serial clock for PLL
O
4.9
4.9
4.9
14 PLL CE
Chip enable for PLL
O
0
0
0
15 CD RESET
Reset for CD deck
O
4.9
4.9
4.9
16 SUB SI
Serial data to Display
CPU
CPU
O
0.6
0.6
0.8
17 CD IN
Disc-in detection
I
5
5
5
18 SUB SO
Serial data from Dis-
play CPU
play CPU
I
4.4
4.4
4.4
19 UP SO
XM SO/UP SO Serial
data from Changer
data from Changer
I
1.6
1.6
1.6
20 UP
CLK
Serial clock for
Changer or Flash
writer
Changer or Flash
writer
I
4.9
4.9
4.9
21 Vdd
+5V power supply
-
4.9
4.9
4.9
22 XM SI (MO)/ UP
SI
Serial data to Satellite
or Flash writer
or Flash writer
O
0
0
0
23 CD SI
Serial data to CD deck
O
0
0
0
24 CD
SCLK
Serial clock for CD
deck
deck
I/O
0
0.4
0
25 CONDENSOR
Capacitor connection
for power
for power
-
3.3
3.3
3.3
26 CD
DO
Serial data from CD
deck
deck
I
0
0
0
27 CH STB
Strobe from Changer
I
0
0
0
28 CH REM OUT
Remote control codes
to Changer
to Changer
O
4.9
4.9
0.4
29 DECK V CONT
Power control for CD
deck
deck
O
4.9
4.9
4.9
30 REMO INT
Interrupt for remote
control
control
I
3.7
3.7
3.7
31 CD
FS
Frame sync. for CD
deck
deck
O
-
-
-
32 Avdd
+5V power supply
-
5.1
5.1
5.1
33 AVREF
+5V power supply
-
5.1
5.1
5.1
34 AVGND
GND
-
0
0
0
35 AVSS
GND
-
0
0
0
36 SD
FM/AM signal level
meter
meter
I
0.2
0
0.3
37 INIT A
Model setting A by volt-
age level
age level
I
0
0
0
38 INIT B
Model setting B by volt-
age level
age level
I
0
0
0
39 A IN
Spectrum
analyzer
data
I
0
0
0
40
Vss
GND
-
0
0
0
41
SYS ID1
Hub connection device
detection ID 1
detection ID 1
I
0
0
0
42
SYS ID2
Hub connection device
detection ID 2
detection ID 2
I
5.2
5.2
5.2
43
HUB EVENT
Bluetooth
incoming
detection
I
5.2
5.2
5.2
44
HUB CNT
Request of hub con-
nection check
nection check
O
0
0
0
45
CD SW1
Disc detection switch 1
I
0
0
0
46
CD SW2
Disc detection switch 2
I
0
0
0
47
MOD0
Operating mode con-
trol 0 from Flash writer
trol 0 from Flash writer
I
5.1
5.1
5.1
48
MOD1
Operating mode con-
trol 1: pulled up to H
trol 1: pulled up to H
-
5.1
5.1
5.1
49
MOD2
Operating mode con-
trol 2 from Flash writer
trol 2 from Flash writer
I
0
0
0
50
H STANDBY
Standby control from
external
external
I
5
5
5
51
DCDC
CONT(NC)
CONT(NC)
Not connected
-
-
-
-
52
FP MOTOR1
Open/Close of Front
panel 1
panel 1
O
4.9
5
4.9
53
FP MOTOR2
Open/Close of Front
panel 2
panel 2
O
4.9
5
4.9
54
V CONT1
Reference voltage con-
trol for motor driver
trol for motor driver
O
0
0
5
55
REMO 1
Remote control data
I
5
5
5
56
SA CLK
Spectrum
analyzer
clock
O
5
5
4.9
57
EXT MUTE
Pulled up to H
I
5.3
5.2
5.2
58
AMP
CONT
Power control for
external Amplifier
external Amplifier
O
4.9
5
4.9
59
BZ OUT
Buzzer signal
O
0
0
0
60
OEL VCONT
Not connected
-
-
-
-
61
WOW MODE1
SRS WOW mode 1
O
0
0
0
62
WOW MODE2
SRS WOW mode 2
O
0
0
0
63
WOW MODE3
SRS WOW mode 3
O
0
0
0
64
DIM1
Dimmer control 1
O
0
0
0
65
DIM2
Dimmer control 2
O
0
0
0
66
MAIN CNT2
Power control for Hub
O
5
5
5
67
SRC
KEY
SOURCE key detec-
tion
tion
I
5
4.9
5
68
PANEL IN
Panel
attachment
detection
I
-
-
-
69
NC
Not connected
-
-
-
-
70
NC
Not connected
-
-
-
-
71
NC
Not connected
-
-
-
-
72
MAIN CONT
Main power control
O
4.9
4.9
4.9
73
INV CONT
Dimmer power control
O
5
5
5
74
AF MUTE
Audio mute
O
5
5
5
75
RESET
Reset
I
5
5
5
76
FOCUS
ELV
Focus elevation for
SRS WOW
SRS WOW
O
-
-
-
77
X1A
Oscillator clock
O
2.1
2.1
2.1
78
X0A
Oscillator clock
I
1.6
1.6
1.6
79
Vss
GND
-
0
0
0
80
X1
Crystal oscillator clock
I
2
2
2
81
X2
Crystal oscillator clock
O
2.5
2.5
2.5
82
Vdd
+5V power supply
-
5
5
5
83
P00
Pulled down to L
-
0
0
0
84
P01
Pulled up to H
-
5.1
5
5.1
85
OFFSET DET
Audio clipping level
detection from Power
amp.
detection from Power
amp.
I
0
0
0
86
STBY
Standby for Power
amp.
amp.
O
5
5
5
87
MUTE
Mute for Power amp.
O
0
0
0
Pin
No.
Port
Description
I/O
FM
AM
CD
Click on the first or last page to see other CQ-C7353W service manuals if exist.