Panasonic SB-WA870EB Service Manual page 20

SB-WA870EB / SB-WA870EG
SCHEMATIC DIAGRAM-4
H603A
/W603
JK601
Lch
1 1 1
GND
2 2 2
Rch
3 3 3
GND
4 4 4
H603B
/W603
SPEAKER
INTERFACE
CIRCUIT
AMPILIFIER CIRCUIT
22 21 20 19 18 17
C612
R619
1000P
C607 18P
R620
C608 18P
C611
1000P
C610 0.01
C620 0.1
C621 0.1 C609 0.01
R626
R621
27K
R625
R622
R630
10K
L602
0.7 H
C618
L601
0.1
C617
0.1
C615 C616 R629
0.047 0.047
R631 R632
10 10
Q601
B1BACG000009
VOLTAGE REGULATOR
R615
C613
47K
Q603
0.01
2SD1859QRTV2
R616
VOLTAGE REGULATOR
4.7K
R617
8.2K
D605
B0BA01200008
R618
47K
D606
B0BA01200008
D607
B0BA02300017
C614
0.01
Q602
B1BCCG000021
R634
VOLTAGE REGULATOR
47K
D608,D610
R635
B0BA01400009
47K
: -B SIGNAL LINE
: +B SIGNAL LINE
IC601
16 15 14 13 12 11 10 9 8 7 6
56K
56K
15K
15K
10
R628 150K
R627
0.7 H 120K
10
C604
C603
100V3300
100V4700
R613 R611
2.7K 4.7
D602 B0FBAM000009
C606
R614
0.1
2.7K
R612
4.7
D608
D609
D609,D611
B0BA01900005
D610
D611
20
: MAIN SIGNAL LINE
IC601
RSN312H24-P
POWER HIC
5 4 3 2 1
FAN_DRV
C602
100V4700
C601
100V3300
D601 B0FBAM000009
+VCCHI
C605
0.1
+VCCLO
GND
-VCCLO
-VCCHI
H602
/W602
1
L
2
INGND
3
R
4
TO
ACin
5
POWER
HMUTE
6
CIRCUIT
DCDET
7
(CN602) ON
GND
SCHEMATIC
8
DIAGRAM-2
H605
/W605
TO
1
POWER
2
CIRCUIT
3
(CN506) ON
SCHEMATIC
DIAGRAM-2
CN606
1
TO
2 SUB
WOOFER
3
H601
/W601
1
2
3
4
5
TO
6
POWER
7
CIRCUIT
(CN601) ON
8
SCHEMATIC
9
DIAGRAM-2
10