Panasonic CQ-C7353W Service Manual ▷ View 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
6
4.1.2.
Display Block
IC900
： C2CBYY000150
88 ILL SENS
Pulled up to H
-
5
5
5
89 NC
Not connected
-
-
-
-
90 EP DO
EPROM comuni. data
input
input
O/I
0
0
0
91 NC
Not connected
-
-
-
-
92 NC
Not connected
-
-
-
-
93 SUB RESET
Reset for display CPU
O
4.9
5
4.9
94 DISPM CONT
5V power control for
Display
Display
O
0
0
0
95 NC
Not connected
-
-
-
-
96 NC
Not connected
-
-
-
-
97 NC
Not connected
-
-
-
-
98 S LED
Security LED drive
O
0
0
5
99 ANT
CONT
Power control for
antenna motor
antenna motor
O
5.2
5.2
5.2
100 NC
Not connected
-
-
-
-
Pin
No.
Port
Description
I/O
(V)
1
A18
A18 in Address bus
O
1.5
2
A19
A19 in Address bus
O
1.7
3
A20
A20 in Address bus
O
1.3
4
A21
Not connected
-
-
5
A22
Not connected
-
-
6
A23
Not connected
-
-
7
A0
A0 in address bus for LCD
O
1.3
8
A1
A1 in Address bus
O
0.3
9
VSS
GND
-
-
10 A2
A2 in Address bus
O
0.4
11 A3
A3 in Address bus
O
0.4
12 A4
A4 in Address bus
O
0.4
13 A5
A5 in Address bus
O
1.3
14 A6
A6 in Address bus
O
0.4
15 A7
A7 in Address bus
O
0
16 A8
A8 in Address bus
O
1.3
17 A9
A9 in Address bus
O
0
18 A10
A10 in Address bus
O
0
19 A11
A11 in Address bus
O
1.5
20 A12
A12 in Address bus
O
1.7
21 VCC
+3.3V Power supply
-
3.5
22 A13
A13 in Address bus
O
1.4
23 A14
A14 in Address bus
O
1.5
24 A15
A15 in Address bus
O
1.7
25 SIN0
Serial data from Main CPU or Flash
writer
writer
I
0.5
26 SOT0
Serial data to Main CPU or Flash writer
O
1.8
27 SCK0
Serial clock for Flash writer
I
3.5
28 NC
Not connected
-
-
29 FRASH
RESET
Reset for Flash memory
O
3.5
30 KS1
Key scan 1
O
0
31 NC
Not connected
-
-
32 NC
Not connected
-
-
33 AVCC
+3.3V Power supply
-
3.5
34 AVRH
+3.3V Power supply
-
3.5
35 AVSS/
AVRL
GND
-
-
36 TH
DETECT
Pulled up to H
-
1.3
37 KS2
Key scan 2
O
0
38 KS3
Key scan 3
O
0
39 NC
Not connected
-
-
40 VSS
GND
-
-
Pin
No.
Port
Description
I/O
FM
AM
CD
41 KI5
Key-in return 5
I
0
42 KI4
Key-in return 4
I
0
43 KI3
Key-in return 3
I
0
44 KI2
Key-in return 2
I
0
45 NC
Pulled down to L
-
0
46 NC
Pulled up to H
-
3.5
47 MD0
Operating mode control 0 from Flash
writer
writer
I
3.5
48 MD1
Operating mode control 1: pulled up to
H
H
-
3.5
49 MD2
Operating mode control 2 from Flash
writer
writer
I
0
50 NC
Not connected
-
-
51 ROTARY
1 Volume-up detection from Rotary
encoder
I
2.5
52 ROTARY
2 Volume-down detection from Rotary
encoder
I
2.5
53 NC
Not connected
-
-
54 NC
Not connected
-
-
55 NC
Not connected
-
-
56 NC
Not connected
-
-
57 NC
Not connected
-
-
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
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
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
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
Pin
No.
Port
Description
I/O
(V)
7
4.1.3.
CD Servo Block
IC101
： YESAM337
99 A16
A16 in Address bus
O
3
100 A17
A17 in Address bus
O
1.7
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)
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)
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
Pin
No.
Port
Description
I/O
(V)
8
4.2.
IC Block Diagram
4.2.1.
Main Block
IC201 : C1BB00000796
IC231 : C0JBZS000003
IC670 : YEAMC14584BE
IC730 : C0DAEKG00002
IC701 : C0DAZHF00004
IC755 : C0DBZGD00040
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