3. Backboard
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
D
D
C
C
B
B
A
A
1k
R2
3
JK
4
SE
ND
Jk
3
Retu
rn
100k
R20
SG
ND
SW
6
PR
E
100k
R2
9
10R
R2
8
100k
R2
2
10R
R2
5
100k
R38
100k
R35
+
15V
-15V
100
uF
C2
4
100u
F
C7
SG
ND
SG
ND
SG
ND
SG
ND
XL
R
8
1
3
2
4
IC
12A
NE
5532N
7
5
6
8
4
IC
12B
NE5532N
SG
ND
10R
R1
2
22F
C1
5
22
F
C1
6
SG
ND
10R
R6
JK
6
LI
NE
SG
ND
100k
R10
8
1
3
2
4
IC
14A
NE5532N
+
15V
-15V
100u
F
C2
100k
R11
SG
ND
470uF
C31
470uF
C30
PG
ND
-15V
+
15V
1
R2
7
100n
F
C6
SW
8
GRN
D
JK5
NE
100k
R5
SG
ND
1K
R1
9
22
F
C10
22
F
C20
22
F
C12
PGND
GN
D
GN
D
22
F
C5
100nF
C22
100nF
C65
100u
F
C1
-15V
+15V
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
C
N4
PREA
P
SG
ND
8
1
3
2
4
IC
13A
NE
5532N
10R
R1
1K
R2
100K
R3
22F
C4
100R
R4
100k
R18
SG
ND
7
5
6
8
4
IC
13B
NE5532N
22F
C9
100K
R8
1K
R7
100R
R9
100
uF
C1
1
100k
R16
SG
ND
22F
C1
8
100K
R1
4
1K
R1
3
100R
R1
5
7
5
6
8
4
IC
14B
NE5532N
SG
ND
1n
F
C3
SG
ND
22F
C1
4
1K
R2
1
1K
R3
3
1K
R3
4
1k
R2
4
PG
ND
+
15V
-15V
SG
ND
SE
ND
RE
RN
PR
E
P
SE
ND
SE
ND
P
P
RE
RN
SE
ND
GN
D
100nF
C68
100nF
C69
100nF
C71
100nF
C67
100nF
C70
100nF
C72
IC
12
IC
13
IC
14
1
2
3
4
5
C
N5
P
W
ER
A
P
PG
ND
PGND
PGND
SG
ND
100F
C8
0
SG
ND
100F
C8
1
SG
ND
100F
C8
2
SG
ND
100F
C8
3
SG
ND
TITEL:
Back board Schematic
PRODUCT NAME:
WA
600
Amp
DESIGNER:
DX
DA
TE:
2012.02.09
PCB P/N:
053-6051010048R
DWG NO
:O
Y-0051-32 ES
SIZE
:
SHEE
T:
DR
AW: