Technical Descriptions - Panasonic CQ-C7353N Service Manual

4 Technical Descriptions

4.1. Terminals Description
4.1.1. Main Block
IC601 ： C2CBKG000037
Pin Port
No.
1 PANEL OPEN Panel open detection
2 PANEL CLOSE Panel close detection
3 SUBM CNT 3.3V power control for Dis-
play
4 BATT Battery power check
5 ACC Acc. power check
6 SDA Serial data for electronic
volume
7 SCLK Serial clock for electronic
volume
8 CD MUTE Signal mute from CD deck
9 Vss GND
10 ST FM stereo detection
11 PLL DI Serial data to PLL
12 PLL DO Serial data from PLL
13 PLL CLK Serial clock for PLL
14 PLL CE Chip enable for PLL
15 CD RESET Reset for CD deck
16 SUB SI Serial data to Display CPU O 0.6 0.6 0.8
17 CD IN Disc-in detection
18 SUB SO Serial data from Display
CPU
19 UP SO XM SO/UP SO Serial data
from Changer
20 UP CLK Serial clock for Changer or
Flash writer
21 Vdd +5V power supply
22 XM SI (MO)/ UP Serial data to Satellite or
SI Flash writer
23 CD SI Serial data to CD deck
24 CD SCLK Serial clock for CD deck
25 CONDENSOR Capacitor connection for
power
26 CD DO Serial data from CD deck
27 CH STB Strobe from Changer
28 CH REM Remote control codes to
Changer
29 DECK V CONT Power control for CD deck
30 REMO INT Interrupt for remote control
31 CD FS Frame sync. for CD deck
32 Avdd +5V power supply
33 AVREF +5V power supply
34 AVGND GND
35 AVSS GND
36 SD FM/AM signal level meter
37 INIT A Model setting A by voltage
level
38 INIT B Model setting B by voltage
level
39 A IN Spectrum analyzer data
40 Vss GND
41 SYS ID1 Hub
detection ID 1
42 SYS ID2 Hub
detection ID 2
43 EVENT Bluetooth incoming detec-
tion
44 HUB CNT Request of hub connection
check
Description I/O
FM AM CD
I 0
I 0
O 5
I 4.8
I 4.8
I/O 4.9 4.9 4.9
O 4.9 4.9 4.9
I 5
- 0
I 5.1 5.2 5.2
O 0.6
I 5.2 5.2 5.2
O 4.9 4.9 4.9
O 0
O 4.9 4.9 4.9
I 5
I 4.4 4.4 4.4
I 1.6 1.6 1.6
I 4.9 4.9 4.9
- 4.9 4.9 4.9
O 0
O 0
I/O 0
- 3.3 3.3 3.3
I 0
I 0
O 4.9 4.9 0.4
O 4.9 4.9 4.9
I 3.7 3.7 3.7
O -
- 5.1 5.1 5.1
- 5.1 5.1 5.1
- 0
- 0
I 0.2
I 0
I 0
I 0
- 0
connection device I 0
connection device I 5.2 5.2 5.2
I 5.2 5.2 5.2
O 0
Pin Port
No.
45 CD SW1
46 CD SW2
47 MOD0
48 MOD1
(V)
49 MOD2
5.2 5.2
50 H STANDBY
0 5.2
- -
51 NC
52 FP MOTOR1
5 5
5 5
53 FP MOTOR2
54 V CONT1
55 REMO 1
5 5
56 SA CLK
0 0
57 EXT MUTE
58 AMP CONT
0 0
59 BZ OUT
60 OEL VCONT
0 0 61 WOW MODE1
62 WOW MODE2
63 WOW MODE3
5 5 64 DIM1(NC)
65 DIM2(NC)
66 MAIN CNT2
67 SRC KEY
68 PANEL IN
69 RDS CLK
70 NC
0 0
71 RDS DATA
72 MAIN CONT
0 0
73 INV CONT
0.4 0
74 AF MUTE
75 RESET
76 ELEV
0 0
0 0
77 X1A
78 X0A
79 Vss
80 X1
81 X2
- -
82 Vdd
83 P00
84 P01
0 0
85 OFFSET DET
0 0
0 0.3
86 STBY
0 0
87 AMP MUTE
88 ILL SENS
0 0
89 NC
90 EP DO
0 0
91 NC
0 0
92 NC
0 0
93 SUB RESET
94 DISPM CONT
95 NC
96 NC
97 NC
0 0
98 S LED
5
Description I/O
Disc detection switch 1
Disc detection switch 2
Operating mode control 0
from Flash writer
Operating mode control 1:
pulled up to H
Operating mode control 2
from Flash writer
Standby control from exter-
nal
Not connected
Open/Close of Front panel O 4.9
1
Open/Close of Front panel O 4.9
2
Reference voltage control O
for motor driver
Remote control data
Spectrum analyzer clock O
Pulled up to H
Power control for external O 4.9
Amplifier
Buzzer signal O
Power control for OEL O
SRS WOW mode 1 O
SRS WOW mode 2 O
SRS WOW mode 3 O
Not connected
Not connected
Power control for Hub O
SOURCE key detection
Panel attachment detection I
RDS clock input IN
T
Not connected
RDS data input
Main power control O 4.9 4.9 4.9
Dimmer power control O
Audio mute O
Reset
Focus elevation for SRS O
WOW
Oscillator clock O 2.1 2.1 2.1
Oscillator clock
GND
Crystal oscillator clock
Crystal oscillator clock O 2.5 2.5 2.5
+5V power supply
Pulled down to L
Pulled up to H
Audio clipping level detec-
tion from Power amp.
Standby for Power amp. O
Mute for Power amp. O
Pulled up to H
Not connected
EPROM comuni. data input O/I
Not connected
Not connected
Reset for display CPU O 4.9
5V power control for Dis- O
play
Not connected
Not connected
Not connected
Security LED drive O
(V)
FM AM CD
I 0 0 0
I 0 0 0
I 5.1 5.1 5.1
- 5.1 5.1 5.1
I 0 0 0
I 5 5 5
- - - -
5 4.9
5 4.9
0 0 5
I 5 5 5
5 5 4.9
I 5.3 5.2 5.2
5 4.9
0 0 0
0 0 0
0 0 0
0 0 0
0 0 0
- - - -
- - - -
5 5 5
I 5 4.9 5
- - -
2.6 0 2.6
- - - -
I 2.6 0.2 2.9
5 5 5
5 5 5
I 5 5 5
- - -
I 1.6 1.6 1.6
- 0 0 0
I 2 2 2
- 5 5 5
- 0 0 0
- 5.1 5 5.1
I 0 0 0
5 5 5
0 0 0
- 5 5 5
- - - -
0 0 0
- - - -
- - - -
5 4.9
0 0 0
- - - -
- - - -
- - - -
0 0 5