Panasonic CQ-C7353N Service Manual ▷ View online
5
4 Technical Descriptions
4.1.
Terminals Description
4.1.1.
Main Block
IC601
： C2CBKG000037
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 Panel close detection
I
0
0
5.2
3
SUBM CNT
3.3V power control for Dis-
play
play
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 electronic
volume
volume
I/O 4.9
4.9 4.9
7
SCLK
Serial clock for electronic
volume
volume
O
4.9
4.9 4.9
8
CD MUTE
Signal mute from CD 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
O
0.6
0.6 0.8
17 CD IN
Disc-in detection
I
5
5
5
18 SUB
SO
Serial data from Display
CPU
CPU
I
4.4
4.4 4.4
19 UP SO
XM SO/UP SO Serial data
from Changer
from Changer
I
1.6
1.6 1.6
20 UP CLK
Serial clock for Changer or
Flash writer
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
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
I/O
0
0.4
0
25 CONDENSOR
Capacitor connection for
power
power
-
3.3
3.3 3.3
26 CD DO
Serial data from CD deck
I
0
0
0
27 CH STB
Strobe from Changer
I
0
0
0
28 CH REM
Remote control codes to
Changer
Changer
O
4.9
4.9 0.4
29 DECK V CONT Power control for CD deck
O
4.9
4.9 4.9
30 REMO INT
Interrupt for remote control
I
3.7
3.7 3.7
31 CD FS
Frame sync. for CD 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
I
0.2
0
0.3
37 INIT A
Model setting A by voltage
level
level
I
0
0
0
38 INIT B
Model setting B by voltage
level
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 EVENT
Bluetooth incoming detec-
tion
tion
I
5.2
5.2 5.2
44 HUB CNT
Request of hub connection
check
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 control 0
from Flash writer
from Flash writer
I
5.1 5.1 5.1
48 MOD1
Operating mode control 1:
pulled up to H
pulled up to H
-
5.1 5.1 5.1
49 MOD2
Operating mode control 2
from Flash writer
from Flash writer
I
0
0
0
50 H STANDBY
Standby control from exter-
nal
nal
I
5
5
5
51 NC
Not connected
-
-
-
-
52 FP MOTOR1
Open/Close of Front panel
1
1
O
4.9
5
4.9
53 FP MOTOR2
Open/Close of Front panel
2
2
O
4.9
5
4.9
54 V CONT1
Reference voltage control
for motor driver
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
Amplifier
O
4.9
5
4.9
59 BZ OUT
Buzzer signal
O
0
0
0
60 OEL VCONT
Power control for OEL
O
0
0
0
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(NC)
Not connected
-
-
-
-
65 DIM2(NC)
Not connected
-
-
-
-
66 MAIN CNT2
Power control for Hub
O
5
5
5
67 SRC KEY
SOURCE key detection
I
5
4.9
5
68 PANEL IN
Panel attachment detection
I
-
-
-
69 RDS CLK
RDS clock input
IN
T
2.6
0
2.6
70 NC
Not connected
-
-
-
-
71 RDS DATA
RDS data input
I
2.6 0.2 2.9
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 ELEV
Focus elevation for SRS
WOW
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 detec-
tion from Power amp.
tion from Power amp.
I
0
0
0
86 STBY
Standby for Power amp.
O
5
5
5
87 AMP MUTE
Mute for Power amp.
O
0
0
0
88 ILL SENS
Pulled up to H
-
5
5
5
89 NC
Not connected
-
-
-
-
90 EP DO
EPROM comuni. data 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 Dis-
play
play
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
Pin
No.
Port
Description
I/O
(V)
FM AM CD
6
4.1.2.
Display Block
IC900
： C2CBYY000150
4.1.3.
CD Servo Block
IC101
： YESAM337
99 ANT CONT
Power control for antenna
motor
motor
O
5.2
5.2 5.2
100 EP CS(NC)
Not connected
-
-
-
-
Pin
No.
Port
Part Name & 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
NC
Not connected
-
-
5
LED G
-
-
-
6
LED B
-
-
-
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
Flash writer
I
0.5
26
SOT0
Serial data to Main CPU or
Flash writer
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
-
-
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
Flash writer
I
3.5
48
MD1
Operating mode control 1:
pulled up to H
pulled up to H
-
3.5
49
MD2
Operating mode control 2 from
Flash writer
Flash writer
I
0
50
NC
Not connected
-
-
51
ROTARY 1
Volume-up
detection
from
Rotary encoder
I
2.5
Pin
No.
Port
Description
I/O
(V)
FM AM CD
52
ROTARY 2
Volume-down detection from
Rotary encoder
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
LED R
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 mem-
ory or Read strobe for LCD
ory or 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 mem-
ory
ory
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
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)
(Eject)
O
0
6
AMUTE
Mute signal output
O
0
Pin
No.
Port
Part Name & Description
I/O
(V)
7
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
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)
DSP IC power control 1
O
3.2
40
-
Not Connected
-
-
41
-
Not Connected
-
-
42
-
Not Connected
-
-
43
CONT (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
Descriptions
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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