Panasonic SC-AK320 Schematic Diagram page 3

SCHEMATIC DIAGRAM - 3
TUNER/MAIN CIRCUIT
TUNER PACK Z120 (RAL0029)
FM EXT
ANT
1
1
75 OHM
2
2
GND
3
3
AM LOOP ANT
4
4
AM EXT
5
ANT JK101
AM ANT COIL
2
1
Z101
RLA2Z007-T
R110
1K
C107
0.047
C132
1000P
R114
5.6K
C133
27P
C110
0.01
R152
0
C134
27P
: +B SIGNAL LINE
: FM/AM SIGNAL LINE
2SK544
RF AMP
2.2P
5.6P
D
G
S
0.001
220
560K
4.7P
3
4
5
6
AM OSC COIL
9 8 7
C108
R112
8P
100K
IC101
LA1833NMNTLM
FM/AM IF AMP
DET/AM OSC MIX/
FM MPX
R111
390
R113
10K
C125
16V22
C111
50V4.7
R115
560
R116
C112
1K
0.01
20 19 18 17 16 15 14
IC102
LC72131MDTRM
PLL FREQUENCY SYNTHESIZER
1 2 3 4 5 6 7
R138
3.3K
R130
10K
: FM SIGNAL LINE
: FM OSC SIGNAL LINE
2SC2786M
CF201
FM MIXER
RLFFETWND01M
0.47u
7 1 3
2
0.001
6
C101 C102
0.01 16V10
2SC1675L1L2
BUFFER AMP
LOCAL OSC
10P
680K
8
2.2P
C109
C136
C114
1000P
1000P
50V3.3
24 23
R119 R118
3.3K 3.3K
1 2
C127 C126
16V22
16V10
3
2
1
5
6
Z102
RLI2Z021M-T
R128
82
R117 R129
27K
47K
C124
100P
13 12 11
8 9 10
: AM SIGNAL LINE
: AM OSC SIGNAL LINE
R104
C103
1K
R107
CF202
0.01
330
RLFFETWND01M
1 3
C104 R106 R101
470K 0
1000P
<2.91V>
2
R105
<0.02V>
((0.02V))
470
((0.02V))
Q101
Q101
2SC2058SPTA
<0.02V>
((0.02V)) FM IF AMP
R103
R121
270
C120
22K
16V10
C138
R143
0.01
22K
C119
680P
C131
R120
150P
47K
22 21 20 19 18 17 16 15
IC101
3 4 5 6 7 8 9 10
C147
1000P
C106
0.01
C148
0.01
4
C129 C149
6.3V100 0.1
R132
10K
Q106
<13.6V> <13.64V>
((13.75V))
((0.02V))
<0.07V>
((13.72V))
Q106
KRA102MTA
TUNER 15V
SUPPLY SWITCH
C144
6800P
R146
100K
C137
3300P
C117
R142
0.01
6.8K
C142
R141
50V1
6.8K
C141
50V1
R145
<1.69V>
100K
((1.78V))
14 13
C143
6800P
11 12
R144
120
R131
120
R133
1K
TO
TGND
MAIN
15V
CIRCUIT
DO/ST
(2A) ON
SD
SCHEMATIC
+7.5V
DIAGRAM-4
1A
RCH
TO
MAIN
CE
CIRCUIT
LCH
(2B) ON
PLLDA_2
SCHEMATIC
DO/ST
DIAGRAM-4
PLLCLK
1B