Panasonic SA-AK18 Service Manual page 109

SCHEMATIC DIAGRAM-4
R104
10K
R109
330
CF202
RLFFETMGD01L
05 R108
00P
470K
1 3
(0V)
<11.7V> 2
(0V)
<0.7V>
Q102
02
SC2787LTA
MPLIFIER
M IF
R120
47K
(4.1V) (5.6V) (2.2V) (2.2V) (0.8V)
<3.7V> <5.7V> <4.8V> <2.5V> <0.4V>
21
24 23 22 20
IC101
1 2 3 5
4
(2.2V) (2.2V)
(5.6V) (2.2V) (0V)
<2.2V> <5.2V> <2.2V> <2.2V> <<0V>
C106
0.01
Z102
RLI2Z021M-T
3
4
6
5
17
K
28
129
K
C124
100P
MDTRM
: +B signal line
R121
22K
C120
16V10
C138
R143
0.01
22K
C118
R123 0.018
C139
68K
0.0047
C116
R102
0.033
4.7K
(2.2V)
(1.3V) (2.6V) (2.2V) (2.1V) (1.9V)
<2.2V>
<0V> <2.7V> <2.2V> <2.1V> <1.8V>
19 18 17 16 15 14 13
10 11
6 7 8 9
(5.1V) (5.3V) (4V) (5.6V) (1.1V)
(0V)
<5.1V> <5.3> <3V> <5.2V> <3.7V>
<0V>
R124
33
C122
50V1
R122
2.7K
R126 R125 R127
1K 470
470
R132
10K
: AM signal line : FM/AM signal line
(0V)
<0V>
Q106
(1.7V)
<0V>
C117
0.018
C142
R142
50V1
6.8K
C141 R141
50V1 6.8K
(1.9V)
<1.9V>
IC101
LA1833MNTLM
IF & MPX IC
(TUNER)
12
(3.8V)
<3V>
R133
68
: FM signal line
Q106
KRA102MTA
POWER SUPPLY
SWITCH
(0V)
<0V>
R131
68
STEREO
CD2
CN101B
1
TO
TGND
2 MAIN
15V
CIRCUIT
3
DO/ST3
(CP301)ON
4
SCHEMATIC
SD2
5
DIAGRAM-5
7.5V
6
C300
0.01
CN102B
RCH2
1
TO
CE CE2
2
MAIN
LCH2
CIRCUIT
3
DI PLLDA2 (CP302)ON
4
DO/ST2 SCHEMATIC
DO
5
DIAGRAM-5
PLLCK2
CL
6