Panasonic SB-WA520GC Service Manual page 13

SCHEMATIC DIAGRAM-1
POWER CIRCUIT
C551
0.01
E501
K4CZ01000027
CN501
AC1
1
DC_DET
2
AC2
3
SYS6V
4
HP_CNT
5
D.GND
6
FL
7
HELP
8
A.GND
9
A.GND
10
FR
11
TO
SL
MAIN CIRCUIT
12
(JK2000) OF
A.GND
13
SA-HT520GC/GCP/
SR
GCS/GS-S
14
C
15
A.GND
16
SW
17
A.GND
18
PCONT
19
MUTE A/
20
CNTR SURR
SYNC
21
FL
22
AC2
23
FL
24
AC1
25
1
TO FAN
2
CN507
26 25 24 23 22 21 20 19 18
R501
4.7K
R502
C507 18P
4.7K
R514
C508 18P
R506
15K
R516
C510 22P
C501
1000P
R505
15K
C503
1000P
R515
C509 22P
R509
4.7K
SUBW
R517
R511
C511 22P
15K
R507
3.9K
R503
15K
R518
C512 22P
R512
15K
R504
R508
15K
3.9K
C516
C515
0.01
R541 C517
100 0.01
R544
100
R542
R402
100
1K
D504
B0AACK000004
D503
MA2C700A0F
R545
220K
R547
D503
390K
C534 R548
330K
50V33
Q507
KTC3199GRTA
R553
56K
SWITCH
Q507
R550
10K
R561
100
D506
C536
16V33
D505
R560
10K
R551
Q508
R552
4.7K
KTA12710YTA
5.6K
R554 820K
C537 0.1 KTC3199GRTA
: MAIN SIGNAL LINE
: -B SIGNAL LINE
: +B SIGNAL LINE
IC501
17 16 15 14 13 12 11 10 9 8
R513
56K
56K
R524
120K
56K
R526
120K
R525
150K
56K
R527
120K
56K
56K
C513
0.047
R529
22K
0.01
R530 1
R532
4.7K
Q520
Q503
B1GCCFJJ0015
INTERFACE SWITCH
KTC3199GRTA
R546
1K
Q506
B1GCCFJJ0015
INTERFACE SWITCH
Q501
Q505
KTC3199GRTA
SWITCHING
KTC3199GRTA
C538
6.3V100
R559 R558 R557
C539
D505-D506
56K 18 56K
6.3V220
B0AACK000004
Q508 R556
10K
CURRENT AMP
Q510
R555
100K
Q510
SWITCH
13
RSN311W64B-P
POWER HIC
6 5 4 3 2 1
7
D501-D502
B0JAPG000019
R521
10K
R531 1
Q503
SWITCH
Q502
Q501-Q502
KTC3199GRTA
SWITCH
Q509
SWITCH
R566
270
C541
16V10
C540
D507, D519
50V2.2
B0AACK000004
D519
D507
SB-WA520GC
IC501