Panasonic SA-XR10E Service Manual page 91

SCHEMATIC DIAGRAM-9
D
E
A
B
C
L
K
H
I
J
F
G
49
D
MAIN CIRCUIT
3.3V 3.3V 1.6V 1.8V 3.3V
14 13 12 11 10
Vcc
1 2 3 4 5
1.6V 3.3V 1.8V 1.6V 3.3V
IC504
C0JBAC000262
NAND GATE
3.3V 0V 0V 3.3V 3.3V
14 13 12 11 10
Vcc
1 2 3 4 5
3.3V 3.3V 0V 0V 0V
3.3V 3.3V 1.6V 1.8V 3.3V
14 13 12 11 10
Vcc
1 2 3 4 5
1.6V 3.3V 1.8V 1.6V 3.3V
50 51
:POSITIVE VOLTAGE LINE
12.1V
3.3V
R501
IC502
C0JBAA000149
AND GATE
1.6V 1.8V
R502
9 8
100
R510
47
GND
6 7
1.8V
R506
47
R492
100
3.3V 0V
9 8
R496
47
GND
R500
6 7
47
3.3V
R536
3.3
IC503
C0JBAA000149
AND GATE
R537
100
1.6V
9 8
R545
47
R526
GND
6 7
R527
100
R535
47
52
3.3
R507
5.4V
1K
1.8V
Q506
1.8V
R503
5.4V
1K
1.8V
Q505
1.8V
Q505,506
B1ABDB000029
FILTER AMP
R491
3.3
R493
5.4V
1K
1.8V
Q501
1.8V
R497
5.4V
1K
1.8V
Q502
1.8V
Q501,502
B1ABDB000029
FILTER AMP
R435
2.7K
R542
5.4V
1K
1.8V
1.8V
Q514
B1ABDB000029
FILTR AMP
3.3
R635
2.7K
R532
5.4V
1K
1.8V
1.8V
Q510
B1ABDB000029
FILTER AMP
3.3V
53 54
A
B
C
D
E
F
R431 R432
4.7K 4.7K
R690 R691
4.7K 4.7K
55