Panasonic CQ-C7403U Service Manual page 11

Pin Port Part Name &
No. Description
92 NC Not connected
93 SUB RESET Reset for display CPU
94 DISPM CONT 5V power control for
Display
95 NC Not connected
96 NC Not connected
97 NC Not connected
98 S LED Security LED drive
99 ANT CONT Power
antenna motor
100 NC Not connected
I/O FM AM CD
- - -
O 4.9 5 4.9
O 0 0
- - -
- - -
- - -
O 0 0
control for O 5.2 5.2 5.2
- - -
10.2. Main Block [CQ-
C7203U/C7103U]
-
IC601 : C2CBKG000038
0
Pin Port
No.
-
1 PANEL Panel open detection
-
OPEN
-
2 PANEL Panel close detection
5
CLOSE
3 SUBM CNT 3.3V power control for Display O
4 BATT Battery power check
-
5 ACC Acc. power check
6 SDA Serial
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 (MO) Serial data to PLL
12 PLL DO (MI) 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
17 CD IN Disc-in detection
18 SUB SO Serial data from Display CPU
19 CH DATA/ XM SO/UP SO Serial data
UP SO
20 CH CLK/ UP Serial clock for Changer or
CLK Flash writer
21 Vdd +5V power supply
22 XM SI (MO)/ Serial data to Satellite or
UP SI Flash writer
23 CD SI (MO) Serial data to CD deck
24 CD SCLK Serial clock for CD deck
25 CONDENSO Capacitor
R power
26 CD SO (MI) Serial data from CD deck
27 CH STB Strobe from Changer
28 CH REM Remote
OUT Changer
29 DECK V Power control for CD deck
CONT
30 REMO INT Not connected
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 HUB EVENT Bluetooth incoming detection
44 HUB CNT Request of hub connection
check
45 CD SW1 Disc detection switch 1
46 CD SW2 Disc detection switch 2
47 MOD0 Operating mode control 0
from Flash writer
48 MOD1 Operating mode control 1:
pulled up to H
11
CQ-C7403U / CQ-C7303U / CQ-C7203U / CQ-C7103U
Part Name & Description I/O FM AM CD
I
I
I
I
data for electronic I/O 4.9 4.9 4.9
O 4.9 4.9 4.9
I
-
I
O 0.6
I
O 4.9 4.9 4.9
O
O 4.9 4.9 4.9
O 0.6 0.6 0.8
I
I
I
from Changer
I
-
O
O
I/O
connection for -
I
I
control codes to O 4.9 4.9 0.4
O 4.9 4.9 4.9
-
O
-
-
-
-
I
I
I
I
-
connection device I
connection device I
I
O
I
I
I
-
0 5.2 5.2
0 0 5.2
5 - -
4.8 5 5
4.8 5 5
5 5 5
0 0 0
5.1 5.2 5.2
0 0
5.2 5.2 5.2
0 0 0
5 5 5
4.4 4.4 4.4
1.6 1.6 1.6
4.9 4.9 4.9
4.9 4.9 4.9
0 0 0
0 0 0
0 0.4 0
3.3 3.3 3.3
0 0 0
0 0 0
- - -
- - -
5.1 5.1 5.1
5.1 5.1 5.1
0 0 0
0 0 0
0.2 0 0.3
0 0 0
0 0 0
0 0 0
0 0 0
0 0 0
5.2 5.2 5.2
5.2 5.2 5.2
0 0 0
0 0 0
0 0 0
5.1 5.1 5.1
5.1 5.1 5.1