Infinity BU2 User Manual

15
Powered Subwoofer BU2
POWER SCHEMATIC 120V VERSION
18.7K 1%
R68
3.65K 1%
R69
20K 1%
P1
F1 2A
55@C
THERMSW1
470
R14
47uF/16V
C13
2.2K
R24
C41
100pF
C30
3300pF
R50
47K
C40
100pF
47.5K 1%
R32
C38
0.1uF
C39
0.1uF
IC2:B
-
6
+
5
7
RLS4148
D5
R31
1M 1%
470
R40
D10
RLS4148
C33
0.1uF
0.22uF
C19
2.21K 1%
R66
R65
1.18K 1%
R62
182K 1%
C20
.047uF
R49
10K 1%
IC2:A
-
2
+
3
8 4
47.5K 1%
R54
R56
10K 1%
C35
22uF/63V
Q10
DTC114TK
RLS4148
D6
R25
1.5K
R26
47K
.022uF
C14
1.8K
R48
C31
47uF/16V
-
2
+
3
10K 1%
R28
10K 1%
R27
11K 1%
R30
D16
RLS4148
K1
RELAY
10K
R44
2SA1037K
Q13
R59 10K
Q14
DTC114TK
0.38uH
L1
10
R8
D9
RLS4148
R46
10K
100-1W
R51
2N5401
Q20
4.7K
R53
10K
R52
D12
IN4002
47K R61
100K
R60
C17
330uF/16V
4.7K
R58
R39
8.2K
0.1uF
C22
R38
4.7K
0.1uF
C25
0.1uF
C16
TIP36E
Q2
.1/5W
R2
.1/5W
R1
Q1
TIP35E
R4
5.1
R3
5.1
2N5401
Q15
C11
0.1uF/100V
Q17
TIP31C
DZD15-TB
Z1
C37
22uF/63V
0.1uF
C15
R41
5.6K
C36
22uF/63V
R36
470-1W
C24
100pF
C23
100pF
MPS2222A
Q5
R7
5.1K
R6
7.5K
100
R11
2N5401
Q6
100
R12
Q7
2N5551
15K R19
7.5K
R20
7.5K
R21
100
R15
100
R17
470
R13
C8
33pF
33pF
C9
2N5401
Q9
R16 47K
2.2K
R18
100pF
C10
Q8
2N5551
C7
0.1uF
R9
10K
R10
10K
Q3
TIP31E
TIP32E
Q4
R5
100
C6
0.1uF
15K R22
C5
0.1uF/100V
C3
0.1uF
C4
0.1uF
C2
6800uF/63V
C1
6800uF/63V
1N5401
D4
1N5401
D3
1N5401
D2
1N5401
D1
TI
Q12
DTC114TK
Q11
2SC2412K
D7
RLS4148
D8
RLS4148
10K R35
R33
4.3K
R34
7.5K
C29
0.01uF/1KV
IC1:B
+
5
0.01uF/200V
C26
0.01uF/200V
C27
R23
47K
150PF
C12
Z2
DZD15-TB
5.6K
R42
TIP32C
Q16
0.1uF
C21
C34
22uF/63V
R37
470-1W
R43
0.1/5W 1%
C18
22uF/63V
R29
10K 1%
TH1
10K&25degC
RLS4148
D17
R57
470
D11
RLS4148
22K R45
1K
R47
R67
10K
R63
22.1K 1%
R64
4.99K 1%
20K 1%
P2
R55
47.5K 1%
.068uF
C28
MI1211
BLACK/WHITE OR RIBS
SOLID BLACK
120V/60HZ
MATES WITH PCB CL1233
BU-2 POWER BOARD (120V VERSION)
LO HI
L N
IN
SERVO LEVEL
IC1:A
TL072
TL072
TL072
INPUT
FROM SHEET 1
TO SHEET 1
PROTECTION
+
-
SPKROUT
-
TO SHEET 1
FROM SHEET 1
MUTE
IN
TL072
AC1 CT AC2
TO SHEET 1
AGND
1K@85C
TO SHEET 1 AGC OUT
AGND
TO SHEET 1
N/C
SERVO GAIN
* *
*
*
1
6
7
1
TP1
TP2
1
1 2
8 4
5 4 6
6
7
2
5
5
4
4
3
3
2
2
1
1
A
A
B
B
C
C
D
D
E
E
F
F
G
G
4 OHMS LOAD WITHOUT LOAD
NOTES:
*
P1: REPLACED WITH FIXED RESISTORS, R68,R69 ONLY. P2: REPLACED WITH FIXED RESISTORS, R64,R65 ONLY.
0.267V
0.485V
-15V
-V
0.273V
1.2mV
-V
+V
+15V
-15V
3.8mV 32.5mV
-15V
-15V
+15V
+15V
-15V
+15V
-V
+V
10.01V 5.915V

Infinity BU2 Specifications

General

Brand	Infinity
Model	BU2
Category	Subwoofer
Language	English