Power Supply Circuit - Panasonic SA-DK3 Service Manual

SCHEMATIC DIAGRAM-30
N
POWER AMP CIRCUIT
IC501
RSN311W64A-P
POWER AMP(HIGH,MID,LOW)
26 25 24 23 22
0V 0V 0V 0V
R506
15K
C502 470P
R505 15K
C501 470P
C504 470P
C503 470P
A B C E D
CP504
1
MID/ FL
2
MID/ FR
3
C
To MAIN CIRCUIT S.GND
4
(CN504) S.GND
5
on SCHEMATIC S.W
6
TW/ SL
DIAGRAM-29 7
TW/ SR
8
CCH
9
SUB+B
10
CP503
1
2
3
C
To MAIN CIRCUIT SPCONT
4
(CN503) FAN
5
on SCHEMATIC D.GND
6
D.GND
DIAGRAM-29 7
DC DET
8
HP SW
9
PCONT
10
O

POWER SUPPLY CIRCUIT

H506
+B(3)
1
SUB+B
2
+B(4)
3
C
To MAIN CIRCUIT +B(5)
4
(CN506) PCONT
5
on SCHEMATIC +B(2)
6
-B
DIAGRAM-29 7
/ TUNER
8
P.GND
9
-VP
10
Q580
2SB621ARSTA
REGULATOR
:NEGATIVE VOLTAGE LINE
:POSITIVE VOLTAGE LINE
21 20 19 18 17 16 15
-63.5V 63.5V 0V 0V -31.1V 31V
R502 R514
3.9K 56K
R501 C508 18P R524
10K
R513 56K
C507 18P R523
R516 56K
C510 22P R526
R515 56K
C509 22P R525
R518 56K
C512 22P R528
R517 56K
C511 22P R527
7.5V
Q502
7.5V
0V
0V
Q501
Q501,502
KTC3199GRTA
OVER LOAD DET.
Q506
KRA102MTA
POWER SUPPLY
15.8V
A
B
R574
150K
0V
C
D
E
15.8V
D503
RVD1SS133TA
H
G
-27.8V -35.5V (-35.7V)
R589 R588
150 4.7K
-28.4V
:AUDIO/ FRONT MID SP. DRIVE SIGNAL LINE
:SUB WOOFER/FRONT LOW SP DRIVE SIGNAL LINE
:SURROUND/ FRONT HIGH SP DRIVE SIGNAL LINE
14 13 12 11 10 9 8
-0.2V 0V 0V 0V 0V 0V
R529
22K
120K
120K
120K
150K
150K
120K
0V
0V
16V Q503
-1V
KTC3199GRTA
Q505
SWITCHING
KTC3199GRTA
POWER SUPPLY CONT.
C586
63V100
D585 D584 D583
D586
1D3E 1D3E 1D3E
1D3E
7 6 5 4 3 2 1
-30V 30V 0V -63.8V 63.5V 0V 0V
-31.2V
R567
2.2
R568
2.2
C517
0.01
63.5V
-63.8V
14.9V
15.8V
9.1V
7.7V
7.8V
-7.6V
C584
50V100
D582
C582
1D3E
25V330
30.8V
A
B
C
D
E
F