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CQ-C7403U / CQ-C7303U / CQ-C7203U / CQ-C7103U
Pin
Port
Part Name & Description
No.
49 MOD2
Operating mode control 2
from Flash writer
50 H STANDBY Standby control from external
51 DCDC CONT Not connected
52 FP MOTOR1 Open/Close of Front panel 1
53 FP MOTOR2 Open/Close of Front panel 2
54 V CONT1
Reference voltage control for
motor driver
55 REMO 1
Remote control data
56 SA CLK
Spectrum analyzer clock
57 EXT MUTE
Pulled up to H
58 AMP CONT
Power control for external
Amplifier
59 BZ OUT
Buzzer signal
60 OEL VCONT Not connected
61 WOW
Not connected
MODE1
62 WOW
Not connected
MODE2
63 WOW
Not connected
MODE3
64 DIM1
Dimmer control 1
65 DIM2
Dimmer control 2
66 MAIN CNT2 Power control for Hub
67 SRC KEY
SOURCE key detection
68 PANEL IN
Panel attachment detection
69 NC
Not connected
70 NC
Not connected
71 NC
Not connected
72 MAIN CONT Main power control
73 INV CONT
Dimmer power control
74 AF MUTE
Audio mute
75 RESET
Reset
76 FOCUS ELV Not connected
77 X1A
Oscillator clock
78 X0A
Oscillator clock
79 Vss
GND
80 X1
Crystal oscillator clock
81 X2
Crystal oscillator clock
82 Vdd
+5V power supply
83 P00
Pulled down to L
84 P01
Pulled up to H
85 OFFSET
Audio clipping level detection
DET
from Power amp.
86 STBY
Standby for Power amp.
87 MUTE
Mute for Power amp.
88 ILL SENS
Pulled up to H
89 NC
Not connected
90 NC
Not connected
91 NC
Not connected
92 NC
Not connected
93 SUB RESET Reset for display CPU
94 DISPM
5V power control for Display
CONT
95 NC
Not connected
96 NC
Not connected
97 NC
Not connected
98 S LED
Security LED drive
99 ANT CONT
Power control for antenna
motor
100 NC
Not connected
10.3. Display Block
I/O FM AM CD
I
0
0
0
I
5
5
5
Pin
-
-
-
-
No.
O 4.9
5
4.9
1
A18
O 4.9
5
4.9
2
A19
O
0
0
5
3
A20
4
A21
I
5
5
5
5
A22
O
5
5
4.9
6
A23
I
5.3 5.2 5.2
7
A0
O 4.9
5
4.9
8
A1
9
VSS
O
0
0
0
10
A2
-
-
-
-
11
A3
-
-
-
-
12
A4
13
A5
-
-
-
-
14
A6
15
A7
-
-
-
-
16
A8
17
A9
O
0
0
0
18
A10
O
0
0
0
19
A11
O
5
5
5
20
A12
I
5
4.9
5
21
VCC
I
-
-
-
22
A13
-
-
-
-
23
A14
-
-
-
-
24
A15
-
-
-
-
25
SIN0
O 4.9 4.9 4.9
O
5
5
5
26
SOT0
O
5
5
5
27
SCK0
I
5
5
5
28
NC
-
-
-
-
29
FRASH
O 2.1 2.1 2.1
RESET
I
1.6 1.6 1.6
30
KS1
-
0
0
0
31
NC
I
2
2
2
32
NC
O 2.5 2.5 2.5
33
AVCC
-
5
5
5
34
AVRH
-
0
0
0
35
AVSS/
-
5.1
5
5.1
AVRL
I
0
0
0
36
TH
DETEC
O
5
5
5
T
O
0
0
0
37
KS2
-
5
5
5
38
KS3
-
-
-
-
39
NC
-
-
-
-
40
VSS
-
-
-
-
41
KI5
-
-
-
-
42
KI4
O 4.9
5
4.9
43
KI3
O
0
0
0
44
KI2
45
NC
-
-
-
-
46
NC
-
-
-
-
47
MD0
-
-
-
-
O
0
0
5
48
MD1
O 5.2 5.2 5.2
49
MD2
-
-
-
-
50
NC
51
ROTA
RY 1
52
ROTA
RY 2
53
NC
54
NC
12
IC900 C2CBJH000133 [CQ-C7403U/C7303U]
IC900 C2CBJH000134 [CQ-C7203U/C7103U]
Port
Part Name & Description
A18 in Address bus
A19 in Address bus
A20 in Address bus
Not connected
Not connected
Not connected
A0 in address bus for LCD
A1 in Address bus
GND
A2 in Address bus
A3 in Address bus
A4 in Address bus
A5 in Address bus
A6 in Address bus
A7 in Address bus
A8 in Address bus
A9 in Address bus
A10 in Address bus
A11 in Address bus
A12 in Address bus
+3.3V Power supply
A13 in Address bus
A14 in Address bus
A15 in Address bus
Serial data from Main CPU or Flash
writer
Serial data to Main CPU or Flash writer
Serial clock for Flash writer
Not connected
Reset for Flash memory
Key scan 1
Not connected
Not connected
+3.3V Power supply
+3.3V Power supply
GND
Pulled up to H
Key scan 2
Key scan 3
Not connected
GND
Key-in return 5
Key-in return 4
Key-in return 3
Key-in return 2
Pulled down to L
Pulled up to H
Operating mode control 0 from Flash
writer
Operating mode control 1: pulled up to
H
Operating mode control 2 from Flash
writer
Not connected
Volume-up
detection
encoder
Volume-down detection from Rotary
encoder
Not connected
Not connected
I/O
(V)
O
1.5
O
1.7
O
1.3
-
-
-
-
-
-
O
1.3
O
0.3
-
-
O
0.4
O
0.4
O
0.4
O
1.3
O
0.4
O
0
O
1.3
O
0
O
0
O
1.5
O
1.7
-
3.5
O
1.4
O
1.5
O
1.7
Çh
0.5
O
1.8
I
3.5
-
-
O
3.5
O
0
-
-
-
-
-
3.5
-
3.5
-
-
-
1.3
O
0
O
0
-
-
-
-
I
0
I
0
I
0
I
0
-
0
-
3.5
I
3.5
-
3.5
I
0
-
-
from
Rotary
I
2.5
I
2.5
-
-
-
-

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