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5 Block Diagram
5.1.
Main-1 Block
PA51
FM / AM TUNER
AT51
1
AM ANT
2 FM ANT
6
14
Q401
94
HUB L
5
CD L
3
AUX L
7
16
1
L-CH
R-CH
17
R-CH
11
20
21
22
Q52,602
TU+B
POW
SW
POW
SW
Q55,601
90
92
16
82
80
FRONT
L
7231-02-11(1/3)
IC201
AUDIO SIGNAL PROCESSOR
MUTE
INPUT
FL
SEL
16
VOLUME
FADER
RL
TONE
15
19
18
IC602
EEPROM
FM VCC
4 3
2
1
AM VCC
32.8KHz
79
53
54
83
85
84
9
E-VOL
I2C
IC601(1/3) SYSTEM CONTROL
9
REAR
R
L
R
CN250
Q365
Q366
MUTE
Q261
IC271
SW
R-CH
POWER AMP
FL+
5
12
FL-
3
RL+
21
14
RL-
23
R-CH
4
22
Q251
XL602
XL601
BAT DET
13.5KHz
10
12
13
99
59 100
CQ-RX400U MAIN (1/3)
CN701
BATT
2 1
ACC
4 3
AMP CNT
FR+
6 5
FR-
8 7
10 9
12 11
RR+
RR-
14 13
16 15
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