B) Tuner/Main Circuit - Panasonic SA-AK220GCP Service Manual

SA-AK220GCP

17.2. (B) Tuner/Main Circuit

SCHEMATIC DIAGRAM - 3
TUNER/MAIN CIRCUIT
FM EXT
ANT
1
1
75 OHM
2
GND
2
3
3
AM LOOP ANT
4
AM EXT
4
ANT
JK101
5
AM ANT COIL
1
2
Z101
G0ZZ00002194
R110
1K
D101
B0BC5R000009
R114
5.6K
C110
0.01
R152
0
TUNER PACK CIRCUIT
2.2P
5.6P 2SK544
1.2U
1000P
100K
100K
180P
220
100K
560K
4.7P
2.2P
3
4
5
6
AM OSC COIL
9 8 7
C108
R112
C107
8P
100K
0.047
IC101
LA1833NMNTLM
FM/AM IF AMP
DET/AM OSC MIX/
FM MPX
R111
390
R113
C125
10K
16V22
C130 C132
C111
6.3V100
1000P
50V4.7
R115
560
R116
C133 C112
27P 1K
0.01
20 19 18 17 16 15 14
IC102
LC72131MDTRM
PLL FREQUENCY SYNTHESIZER
1 2 3 4 5 6 7
C134
27P
R138
3.3K
R130
10K
: +B SIGNAL LINE : FM SIGNAL LINE
: FM/AM SIGNAL LINE : FM OSC SIGNAL LINE
CF201
RLFFETWND01L
2SC2786M
0.47U
1 3
7
C104
1000P
390
2
R105
470
1000P
6
390
390 C101
0.01
2SC1675l1l2
5.6P
680K
8
2.2P
2SC2787FL1TA
C109
C136
C114
1000P
1000P
50V3.3
24 23 22
R118
3.3K
1 2 3
C127 C126 C106
0.01
16V22 10
3
2
1
5 6
Z102
G2BAE0000003
R128
82
R117
R129
47K 27K
C124
100P
13 12 11
8 9 10
52
: AM SIGNAL LINE
: AM OSC SIGNAL LINE
R104
1K
C103
R107
0.01
330 CF202
RLFFETWND01L
1 3
R106 R101
470K
0
2
Q101
2SC2058SPTA
Q101
FM IF AMP
R103
C102
270
16V10
R121
C120
22K
16V10
C138
R143
22K 0.01
C119
680P
R120
47K
21 20 19 18 17 16 15 14 13
IC101
4 5 6 7 8 9 10 11 12
C147
1000P
C148
0.01
4 R126
1K
C129 C149
6.3V100 0.1
R132
10K
Q106
Q106
B1GCCFJJ0015
TUNER 15V
SUPPLY SWITCH
R146
100K
C117
R142
0.01
6.8K
C142
50V1
R141
6.8K
C141
50V1
R145
100K
C143
6800P
C123
50V1
C121
50V0.47
R144
120
R131
120
R133
1K
TGND
TO
MAIN
15V
CIRCUIT
(2A) ON
DO/ST
SCHEMATIC
SD
DIAGRAM-8
+7.5V
1A
RCH
TO
CE
MAIN
CIRCUIT
LCH
(2B) ON
PLLDA
SCHEMATIC
DO/ST
DIAGRAM-8
PLLCLK
1B