POWERED SUBWOOFER
21
SCHEMATICS DIAGRAMS
SMPS
D1
BR108
C4
332 275Vac
C3
332 275Vac
C2
330n 275Vac
R1
470K 1/2W
!
!
!
!
SW2
M372-499-100-Z
C5
560u/250V
C6
560u/250V
R2
100K 1/2W
R3
100K 1/2W
Z1
18V
Z2
18V
R6
1K
R5
51
Q1
IRF840
R4
51
Q2
IRF840
D2
UF4006
Q4
IRF840
Q3
IRF840
R7
51
R8
51
R9
1K
Z3
18V
Z4
18V
D3
UF4006
R10
100/2W
C7
100p 1KV
R13
47/2W
C9
470p 1KV
C10
470p 1KV
R14
47/2W
D8
MUR1540
D9
MUR1540
D11
MUR1540
C11
1000u/63V
C12
1000u/63V
NTC 1
SCK057
L1
TT-9973
C1
330n 275Vac
1
2
3
CN1B
BWF3
G1
GAS ARRESTER
1
2
3
CN1A
BCON3
SW1
SW1P1T
F1
T6.3A/250V
IEC1
IEC SOCKET
L7
TT-9975
1
2
3
4
CN3
BCON4
1
3
4
5
T2
TT-9976
D17
1N4001
D10
MUR1540
D12
UF4003
C20
100n
D19
1N4148
R22
680R
C24
472
C25
103
R21
470R
C26
222
R37
1K
D20
1N4148
C23
102
D21
1N4148
R20
270K
D22
1N4148
R24
10K
Q6
2N3904
Q5
2N3906
R26
10K
C29
2u2/50V
C28
100n
C27
103
R19
240R
R18
22R
D18
UF4003
C31
100u/50V
C22
100n
C32
100n
D23
1N4148
C30
100uF/50V
1
CN4
CON1
R28
20K
R33
4K7
Q7
2N3904
R32
1K5
R31
1K5
Z5
30V
R23
200K
R36
1K
TP1
1KB
R29
1K
!
!
!
!
!
115V
230V
D14
1N4001
D13
1N4001
D16
1N4001
D15
1N4001
3
8
1
10
L5
TT-9980
!
TT-9980
+55V
-55V
L
N
E
R30
24K
CURRENT TRF
50HZ TRF
L2
TT-9973
T1
TT-9972
T1
TT-9972
T1
TT-9972
1
4
5
6
7
8
P1
Earth Gnd
Second GND
5
2
8
11
L3
TT-9978
to power amplifier
Screw in the box
D4
UF4003
D5
UF4003
C8
470u/35V
C13
470uF/35V
in
1
out
3
G
2
U1
L7812CV
in
2
out
3
1
U2
L7912CV
C14
47u/50V
C15
47u/50V
C16
100n
C17
100n
C18
100n
C19
100n
1
2
3
4
CN2
CON4
+12V
-12V
T4
TT-9971
3
1
5
6
Pin8
1
13
5
14
15
16
10
12
9
10
11
T3B
TT-01001
FB1
FB
FB2
FB
FB3
FB
FB4
FB
Vcc
7
o/p
6
Isense
3
Vref
8
Rt/Ct
4
Gnd
5
Comp
1
Vfb
2
U3
KA3842B
R11
4.7K
R15
5K1 5W
R16
5K1 5W
To 5V of amplifier ground
L8
EI-41
KSL-3034
FB5
FB6
FB7
FB8
FB9
FB10
FB11
FB12
FB13
FB14
C33
100n
C34
100n
