Panasonic SB-WA840 Service Manual page 18

SB-WA840EE
SCHEMATIC DIAGRAM-2
POWER CIRCUIT
L504 0.7µH R623
R624 10
C560
50V10
Q511
B1BACG000048
VOLTAGE REGULATOR
C544
50V100
C572
50V100
B1BCCG000023
VOLTAGE REGULATOR
R600
R601
L502 0.7µH
R622 10
L505 0.7µH
L503 0.7µH R625 10
10
C520
C521 C522
0.047
0.047 0.047
R535 R536 R537
10 10
D509
B0BA5R100013
R567 R609
1.5K 1.5K
D509
C545
R570
R569
C543
1.8K 10K
1000P
R571
1.8K
R568
150
R560
150
C573
1000P R561
3.9K
Q512 R610
4.7
D563
D564
47K
D563-D566
B0BA01900005
47K
D565
D566
: -B SIGNAL LINE
: +B SIGNAL LINE
L501~L505
G0AR76Y00001
L501 0.7µH
R621 10
C569
C518
0.047 C519
0.047
0.047
C523
0.047
C524
R534
R533
0.1
10
10
R538
10 10
D515
D515
B0EAKM000122
C546
C547
100V3300
100V4700
0.1
D513
B0HARM000017
D514
B0HARM000017
18
: MAIN SIGNAL LINE
C528
C525 C526 C527
0.047
0.1
0.1 0.1
R577
1.5K
C530 C531 C532 C533
1000P 1000P 1000P 1000P
C550 0.01
D516
B0EAKM000122
C548
100V4700
C549
100V3300
R565 3.9K
C553
0.1
D511
B0HARM000017
C554
0.1
D512
B0HARM000017
JK501
-
6
SRLch
+
5
-
4
FRch
3 +
-
2
FLch
+
1
JK502
1
SRRch
2
3
CENTER
4
4
3
SUB WOOFFER
2
1
CN506
CP502
HELP
1
PCONT
2
TO
GND
3 AC INLET
SYNC CIRCUIT
4
(CN502) ON
SYS6V
5 SCHEMATIC
DIAGRAM-3
SUB+B
6
7
E500
K4CZ01000027
CN503
1
2
3
4
5 TO
TRANSFORMER
6
CIRCUIT
(H500/W500) ON
7
SCHEMATIC
8
DIAGRAM-3
9
10
11
12