Amplifier Circuit - Panasonic SB-WA17E Service Manual

SB-WA17E / SB-WA17EB

11.3. Amplifier Circuit

SCHEMATIC DIAGRAM-4
AMPILIFIER CIRCUIT
B1BACG000048
VOLTAGE REGULATOR
R615
47K
B1BAAJ000003
R616
VOLTAGE REGULATOR
4.7K
R617
8.2K
R618
47K
Q602
B1BCCG000023
VOLTAGE REGULATOR
22 21 20 19 18 17 16 15 14
R619 56K
C607 18P
R620 56K
C608 18P
C611
1000P
C610 0.01
C609 0.01
R626
10K
C612
1000P
R625
115K
R622 10K
R621 27K
Q601
100V3300
C613 R613
Q603
0.01 2.7K
D605
B0BA01200008
D606
B0BA01200008
D607
B0BA02300017
C614
R614
0.01
2.7K
Q602
R612
4.7
R634
D608
47K
D608,D610
R635
B0BA01400009
47K
D610
: -B SIGNAL LINE
: +B SIGNAL LINE : MAIN SIGNAL LINE
IC601
4
13 12 11 10 9 8 7 6 5 3
R633
820K
C619
0.047
R628 150K
R627 120K
C621
0.1
C604 C602
C603
100V4700
100V4700
R611
4.7
D601
4
D602 B0FBAM000009
4 3 2 1
C606
0.1
D609
D609,D611
B0BA01900005
D611
22
IC601
RSN312H24A-P
POWER HIC
2
1
L601
R629
L601,L602
10
G0AR76Y00001
L602
R630
C615
10
0.047
R631 10
C617 0.047
C616
0.047
R632 10
C618 0.047
FAN_DRV
INGND
HMUTE
DCDET
C601
100V3300
B0FBAM000009
3 2 1
+VCCHI
C605
+VCCLO
0.1
GND
-VCCLO
-VCCHI
CN604
1
TO
2
SUBWOOFER
3
SPEAKER UNIT
4
H603
/W603
8
7
TO
6
POWER CIRCUIT
5
(CN603) ON
4
SCHEMATIC
DIAGRAM-2
3
2
1
H602
/W602
1
FL
2
3
TO
FR
4 POWER CIRCUIT
AC IN
(CN602) ON
5
SCHEMATIC
6
DIAGRAM-1
7
GND
8
H601
/W601
1
2
3
TO
4
POWER
CIRCUIT
5
(CN601) ON
6
SCHEMATIC
DIAGRAM-2
7
8
9
10