Panasonic SA-DK3 Service Manual page 161

SCHEMATIC DIAGRAM-23
C
MAIN CIRCUIT
R201
JK201
12K
Lch
C202
0.01
AUX1
Rch
R202
12K
R207
JK201
1K
Lch
C203
0.01
REC OUT
Rch
R208
1K
:POSITIVE VOLTAGE LINE
:NEGATIVE VOLTAGE LINE
B D
R225
R213 R229
6.8K
D
R447 3.9K
A
-7.6V 0V 0V 0V 0V
1 2 3 4 5
V
EE
1 2 3 4
1 2 3 4
V
DD
30 29 28 27 26
7.7V 0V 0V 0V 0V
R448
3.9K
B
R214 6.8K
C
R221 3.3K
F
A
C
R241 R243
56K 8.2K
C215
680P
-7.6V 0V
4 3
IC202
M5218AFPE3
BUFFER AMP
5 6
0V 0V
C216 C218
680P 33P
R244 R246
8.2K 33K
7.7V 7.7V
14 13
IC204
BU4066BCF-E2
INPUT SELECTOR
1 2
0V 0V
:AUDIO/FRONT MID SP. DRIVE SIGNAL LINE
:FM SIGNAL LINE :TAPE PLAYBACK SIGNAL LINE
:AM SIGNAL LINE :CENTER SP. DRIVE SIGNAL LINE
C231
3300P
33K
4.7K
0V 0V 0V 0V 7.7V 7.7V 7.7V
6 7 8 9 10 11 12
5 6 7 8
5 6 7 8
25 24 23 22 21 20 19
0V 0V 0V 0V 0V 0V 0V
R245 R210
33K 3.3K
C217 C213 R235
33P 50V4.7 220
0V 0V
2 1
7 8
0V 7.7V
C214 R254
50V4.7 470K
7.7V
12 11 10 9 8
3 4 5 6 7
0V 0V 7.7V 7.7V -2.2V
R289
100K
-7.6V
7.7V
9.1V
7.7V
14.9V
I
C235 R233
47P 4.7K
J
0V
13 14 15
NC ST Vss
IC201
NJU7313AMT2
INPUT SELECTOR
NC DATA CK
18 17 16
0V 0V
R232
4.7K
K
R231
4.7K
L
M
N
O
P
R209
3.3K
R284
4.7K