Main/Tuner Circuit - Panasonic SA-AK22 Service Manual

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SCHEMATIC DIAGRAM - 3

MAIN/TUNER CIRCUIT

TUNER PACK Z120 (EN17290G1Y)
FM EXT
22P 15P
1
ANT
1
1P
75
2
HVM27
GND
2
33K
AM LOOP
18P
ANT
3
3
4
4
AM EXT
ANT
5
JK101
47P
AM ANT COIL
2
1
Z101
9
RLA2Z007-T
R110
C107
1K
0.047
R114
5.6K
LA1833NMNTLM
C110
0.01
R152
0
IC102
LC72131MDTRM
PLL FREQUENCY SYNTHESIZER
: +B SIGNAL LINE
4P
22
D
8P
4P
G
7P
S
0.022
0.022
D
8P
8P
G
S
100K
3P
C136
1000P
3
4
5
6
AM OSC COIL
8 7
R112 C108
100K 8P
IC101
FM/AM IF AMP
DET/AM OSC MIX/
FM MPX
R111
390
C125
16V22
R113
C132
10K
C130
1000P
6.3V100
D101 C111
UDZSTE175R1B
50V4.7
R115
R116
C112
0.01
C133
27P
20 19 18 17
1 2 3 4
C134
27P
R138
3.3K
R130
10K
R137
1K
Digitized in Heiloo, Holland
: FM SIGNAL LINE
: FM OSC SIGNAL LINE
Q106
Q101
KRA102MTA 2SC2058SPTA
POWER SUPPLY CONTROL
FM IF AMP
(FM : ON)
CF201
C104
RLFFETWND01M
1000P
IFT
1 3
7
R105
2
C101
C102
0.01
16V10
6
150
R139
22K
15P
8
33P
2P
18P
24 22 21 20 19
23
IC101
1 2 3 4 5 6
C106
0.01
3
2
4
1
Z102
5 6
RLI2Z021M-T
560
1K
16 15 14 13 12 11
R132
IC102
10K
5 6 7 8 9 10
R133
1K
R134
470
R117
47K
: AM SIGNAL LINE
: AM OSC SIGNAL LINE
: FM/AM SIGNAL LINE
0V
R104
(0V)
1K
<13.5V>
C103
R107
0.01
330
CF202
RLFFETWND01M
R106
470K
1 3
0V
Q101
(0V)
<11.5V>
470
2
0V
(0V)
0V
<0.7V>
(0V)
<0V>
R103
270
Q110
0V(0V)<11.5V>
0V Q110
(0V)
0V
C120 2SC3311ARTA
R121
<0.7V>
(0V)
16V10
22K <0V>
DC DETECT SWITCH
C138
R143
0.01
22K
R140
22K
C117
C139 R146
0.01
50V4.7
100K
C142 R142
50V1
6.8K
C141 R141
50V1 6.8K
R145
100K
18 16
17 15 14 13
C143
6800P
8 9 10 11 12
7
R124
33 C122
50V1
R127
470
R122
2.7K
R131
68
C129 C149
6.3V100 0.1
R128
82
R125
R126
470
1K
12/10/2014
Q106
13.6V
(13.6V)
<13.6V>
13.6V
(13.6V)
<0V>
1A
TUNGND
15V
TO
DO/ST
MAIN CIRCUIT
SD
(1B) ON
+7.5V
SCHEMATIC
DET_OUT DIAGRAM-4
2A
RCH
CE
TO
LCH
MAIN CIRCUIT
PLLDA
(2B) ON
DO/ST SCHEMATIC
DIAGRAM-4
PLLCK