Panasonic SA-AK58 Service Manual page 134

SCHEMATIC DIAGRAM-17
B
MAIN(CONTROL) CIRCUIT
R434
2.2K
C435
0.018
D401
1SS355TE17
0V
24
1
0V
D201
1SS355TE17
C235
0.018
C A
Q307
KRC111STA
DC IN DET.
4.9V
Q311 5.3V
0V
KRC111STA
0V
DC IN DET.
Q352
KRA102STA
DC IN DET.
14.5V
-7.5V
7.5V
10V
5.3V
:POSITIVE VOLTAGE LINE
:NEGATIVE VOLTAGE LINE
C440
50V1
IC301
M62456FPE1
BTL BASS BOOST
R431
18K
R444
22K
C441
100P
C436
D401
100P
0V 0V 0.3V -7.5V
23 22 21 20 19
22K
22K
2 3 4 5 6
0V 0V 0.7V 7.5V 0V
D201
C241
100P
R231
18K
B
1SS355TE17
5.3V
-3.4V
D313
1SS355TE17
4.9V
:CD SIGNAL LINE
:CENTER SP. DRIVE SIGNAL LINE
:SURROUND SP. DRIVE SIGNAL LINE
C322 R336 R337
0.068 15K 8.2K
R334 C326
270K 4700P
0V 0V 0V 0V 0V
18 17 16 15 14
22K
27K
22K
7 8 9 10 11
0V 0V 2.3V
C A D B E G F
D309
R313
39K
R316
15K
U
R
T
0V
13
12
0V
CN301
P.GND
1
D.GND
2
+B(7.5V)
3
M
-B(-7.5V) To
4
NC POWER AMP
5
NC
6 CIRCUIT(CP500)
CD7.5V
7 on SCHEMATIC
CD3.3V
8 DIAGRAM-18
SW5V
9
-VP
10
LED9V
11
+B(10V)
12
CN300
R312
GND
1
2.2
+B(14V)
2
A Lch OUT
3
Rch OUT
4
B
To
LOW OUT
5
C
POWER AMP
GND
6
CIRCUIT(CP501)
I S OUT
7
on SCHEMATIC
H C OUT
8
DIAGRAM-18
/CD
9
DC DET
10
P.CONT
11
HP SW
12
M