Panasonic SA-HT280 Service Manual page 77

SCHEMATIC DIAGRAM-11
:POSITIVE VOLTAGE LINE
IC501
BA6218
MOTOR DRIVE
DIRECTION
SELECT
1 2
0V
5.5V
I
J
C
A
R553
100K
14.4V
16
V
DD
GND
1
B
C551
50V3.3
R501
2.2K
6
B
5
C
R502
3
2.2K
2
1
:NEGATIVE VOLTAGE LINE
-16.2V
DRIVE
3 4 5 6 7 8
0V 5.5V 0V
R508
2.2
IC551
TC9214AP R506
2.2K
SIGNAL SELECTOR
5V 0V 0V 0V 0V
15 14 13 12 11 10
2 3 4 5 6 7
0V 0V 0V 0V 0V 5V
R505
2.2K
C552
50V3.3
14 12 8 10
7
4 13 11 9
G H
:FM/AM SIGNAL LINE
9
0V
L502
1 H
A
L501
1 H
B
D
5V
9
Vss
8
-16.2V
A
B
M VR501
(VOLUME)
A
HEADPHONES
F
JACK CIRCUIT
CP501
CN501
B
1 1 R
A
2 2 L
3 3 G
4 4
HP601
PHONES