Panasonic SA-AK58 Service Manual page 121

SCHEMATIC DIAGRAM-4
:POSITIVE VOLTAGE LINE
R104
1K
CF201
1 3
2
IC101
LA1833NMNTLM
FM/AM IF AMP,
DET/AM OSC,MIX/FM MPX
A
D
B
C
4.7V 6.1V
4.4V 5.9V
24 23 22
1 2 3
2.1V 5.8V
2.1V 6.1V
Z102
1 4 1
2
3 6
2
:FM SIGNAL LINE :AM SIGNAL LINE
R107
330
R106 CF202
470K
1
0V
C104
0V
10.3V
1000P
0.7V
2
Q101
2SC2058SPTA
FM IF AMP
2.1V 2.1V 0.7V 1.2V 2.4V 2.1V
2.4V 2.4V 0.3V 0V 2.4V 2.1V
21 20 19 18 17 16
4 5 6 7 8 9
2.1V 2.1V 5.3V 5.2V 3.6V
2.1V 2.1V 5.3V 5.2V 4.7V
3
:AM OSC SIGNAL LINE
3
Q106
KRA102MTA
POWER SUPPLY
(FM:ON)
FM +B LINE
0V 14.5V
14.3V 14.5V
0V
14.4V
2.1V 2V 1.8V 1.8V
2.1V 2V 1.8V 1.8V
15 14 13
10 11 12
5.8V 0V 4.7V 3.4V
6.1V 0V 1.2V 4.3V
R131
68
D F C E
R125
470
R126
1K
A
B
C
D
To
on SCHEMATIC DIAGRAM-15
14.5V 14.5V
C142 R142
50V1 6.8K
C141 R141
50V1 6.8K
7.5V 7.3V
14.5V 14.5V
B A
A
B
A
1 2 3 4 5 6 7 8 9 10 11
B
MAIN(CONTROL)CIRCUIT( )
B
A
B