Panasonic SA-PM31P Service Manual page 83

SCHEMATIC DIAGRAM-13
POWER CIRCUIT
18 17 16 15 14 13
C503 820P
C501 820P
C500 820P
C502 820P
C518
0.01
R567
150
Q520
B1BACG000023
REGULATOR
Q520
C539
0.01
C538
16V22
C751
16V10
B1BCCG000002
: -B SIGNAL LINE
: +B SIGNAL LINE
12 10 6 5
11 9 8 7
C515
0.01
R514 56K
C509 33P
R506 56K
C505 33P
R515 56K
C510 33P
R505 56K
C504 33P
R534 R550 R554
330 330 330
D526
B0AACK000004
C533
0.1
R537
2.2K
Q514
2SD0592ARA
REGULATOR
C528
0.01
C526
50V33
Q501
B1BACG000023
REGULATOR
R591
100
C511
C512
16V100
R572
R573
2.7K 560
R574
2.7K
C517
0.01
Q506
B1BCCG000002
CURRENT CONTROL
Q502
SWITCH
Q502
C520 R526
0.01
10K
Q508
KTC3199GRTA
SWITCH
C521
R517
16V33
330
: MAIN SIGNAL LINE
IC500
RSN315H41-P
POWER AMP IC
4 3 2 1
R761
22K
R760
22K
B1AAGC000006
R770
3.3K
D530
B0AACK000004
Q516
R780
47K
R556
2.2
R539
220
D524
B0BA01100004
R536 R549
2.2 2.2
0.01
R512 R511
150 1K
Q505
C516
50V10
B1ACCF000063
R571
R568 R569
3.3K
15 27
R524 2.2
R520 2.2
R519 2.2
Q509
KRA110MTA
CURRENT LIMITING
SWITCH
R518
1.2K
83
CN504
HI_R
8
RGND
7
R763 RGND
6
5.6K TO
LO_L
5
MAIN CIRCUIT
HI_L
(CN304) ON
4
R762 LGND
SCHEMATIC
3
5.6K
LGND
DIAGRAM-4
2
LO_R
1
Q519
R566
10K
SWITCH
R546
22K
R565
12K
Q515
KTC3199GRTA
SWITCH (DCDET)
Q516
KTC3199GRTA
SWITCH (DCDET)
1
2
C530
0.1
3
4
C507
50V2200
Q505
SWITCH
CN506
S3
1
S4
TO
2
GND1 TRANSFORMER
3
CIRCUIT
GND1
4
(H503/JW503)
GND2
5
ON SCHEMATIC
SUB+B
DIAGRAM-14
6
C508
25V3300
E501
SNE1004-2
SA-PM31P / SA-PM31PC