Panasonic SA-AK52 Service Manual page 38

SA-AK52
SCHEMATIC DIAGRAM - 4
R104
1K
CF202
1 3
2
C125
D101
16V22 UDZSTE175R1B
C112
0.01
C133
27P
C134
27P
R138
3.3K
R130
10K
: +B SIGNAL LINE
: FM/AM SIGNAL LINE
R121
22K
C116
0.033
C139
25V4.7
24 22 21 20 19 18
23 17
IC101
1 2 3 4 5 6 7
C106
0.01
Z102
3
4
2
1
5
6
R111
390
C132
C130
0.001
6V100
R113
10K
C111
25V4.7
R115
560
R116
1K
14 13
20 19 18 17 16 15
IC102
X103
LC72131MDTRM
PLL FREQUENCY SYNTHESIZER
1 2 3 4 5 6
7
R167
1.5K
: AM SIGNAL LINE
: FM SIGNAL LINE
: FM OSC SIGNAL LINE : AM OSC SIGNAL LINE
C120
16V10
C138
0.01
13.6V
0V
(13.6V)
(0V)
<13.6V>
<13.5V>
Q106
KRA102MTA
POWER SUPPLY CONTROL
13.6V
(13.6V) (FM : ON)
<0V>
C117
0.01
C144
R146
C142
R142
0.0047
100K
50V1 6.8K
C141
R141
50V1
6.8K
R145 C143
100K 0.0047
16
15 14 13
IC101
LA1833NMNTLM
FM/AM IF AMP
DET/AM OSC MIX/
FM MPX
8 9 10 11 12
R131
68
R128
82
12
11
8 9 10
R133
R126
1K
1K
R160
8.2K
38
1A
15V
TO
DO/ST
MAIN CIRCUIT
SD (1B) ON
SCHEMATIC
+7.5V
DIAGRAM-5
MUTEA
2A
RCH
CE
TO
LCH
MAIN CIRCUIT
(2B) ON
PLLDA
SCHEMATIC
DO/ST
DIAGRAM-5
PLLCK
R125
470