AV2500 Series II
AV2500 Series II
SERVICE MANUAL
B&K COMPONENTS, LTD.
2100 Old Union Road
Buffalo, New York 14227-2725
U.S.A.
AV2500 Series II
AV2500 Series II
SERVICE MANUAL
B&K COMPONENTS, LTD.
2100 Old Union Road
Buffalo, New York 14227-2725
U.S.A.
Schematics
Schematics
B&K COMPONENTS, LTD.
2100 Old Union Road
Buffalo, New York 14227-2725
U.S.A.
10K
R79
100uF 100V
C51
100uF 100V
C50
V-
V+
D22
1N4002
D21
1N4002
8A SB
F2
8A SB
F1
R98
1K
R99
1K
R102
1K
R101
1K
R100
1K
C8
100uF 25V
C16
100uF 25V
C25
100uF 25V
C34
100uF 25V
C49
100uF 25V
10uF NP
C36
10uF NP
C27
10uF NP
C18
10uF NP
C10
1N4148
D15
C41
10000uF 63V
C47
10000uF 63V
+15V
-15V
D20
1N4002
D8
1N4002
100uF 25V
C40
C45
33nF
100uF 25V
C46
C39
33nF
R93
3.01K
R84
3.01K
TIP31C
Q4
R82
3.01K
Q8
TIP32C
R94
3.01K
1N965B
D13
1N965B
D14
CON6
CTRL
10K
R65
D6
1N4148
1K
R75
2N5551
Q3
1N965B
D9
33nF
C35
SW1
2
1
6
5
4
3
JUMPER
R66
U2
LM3886
V IN-
9
V IN+
10
OUT
3
V
+
5
V
+
1
G
N
D
7
V
-
4
M
U
T
E
8
C2
.12uF
100uF 100V
C3
100uF 100V
C6
C5
.12uF
V+
V-
V-
V+
R7
10K
D1
1N4148
1N4148
D2
R22
1K
R21
24.3K
R8
475
Q1
2N5401
R24
24.3K
D3
1N4148
D5
1N4148
R29
1K
Q2
2N5551
R30
133
1N4148
D4
R28
OPEN
OUT/IN
CON5
INPUTS
CON3
R19
33.2K
R17
1K
R9
50K
C
C
W
W
C
W
1.5K
R4
33.2K
R10
2.26K
R12
2.26K
R11
R37
2.26K
R38
2.26K
R36
33.2K
R27
1.5K
50K
R35
C
W
W
C
C
W
1K
R41
33.2K
R42
V-
V+
.12uF
C14
C15
100uF 100V
C12
100uF 100V
.12uF
C11
LM3886
U4
M
U
T
E
8
V
-
4
G
N
D
7
V
+
1
V
+
5
OUT
3
V IN+
10
V IN-
9
R54
2.26K
R55
2.26K
R53
33.2K
R45
1.5K
50K
R52
C
W
W
C
C
W
1K
R58
33.2K
R59
V-
V+
.12uF
C22
C23
100uF 100V
C21
100uF 100V
.12uF
C20
LM3886
U6
M
U
T
E
8
V
-
4
G
N
D
7
V
+
1
V
+
5
OUT
3
V IN+
10
V IN-
9
R73
2.26K
R74
2.26K
R72
33.2K
R64
1.5K
50K
R71
C
W
W
C
C
W
1K
R76
33.2K
R81
V-
V+
.12uF
C31
C32
100uF 100V
C29
100uF 100V
.12uF
C28
LM3886
U8
M
U
T
E
8
V
-
4
G
N
D
7
V
+
1
V
+
5
OUT
3
V IN+
10
V IN-
9
R91
2.26K
R92
2.26K
R90
33.2K
R85
1.5K
50K
R88
C
W
W
C
C
W
1K
R95
33.2K
R97
V-
V+
.12uF
C43
C44
100uF 100V
C38
100uF 100V
.12uF
C37
LM3886
U10
M
U
T
E
8
V
-
4
G
N
D
7
V
+
1
V
+
5
OUT
3
V IN+
10
V IN-
9
CON1
2
4
6
8
10
12
1
3
5
7
9
11
CON8
11
9
7
5
3
1
12
10
8
6
4
2
CON7
11
9
7
5
3
1
12
10
8
6
4
2
CON4
11
9
7
5
3
1
12
10
8
6
4
2
CON2
11
9
7
5
3
1
12
10
8
6
4
2
10uF NP
C1
LF353
U1:B
7
+
5
-
6
R2
100
R5
221
221
R25
100
R20
LF353
U3:B
-
6
+
5
7
-15V
+15V
C13
33nF
R23
100
LF353
U3:A
1
8
4
+
3
-
2
R26
221
R32
100K
R31
OPEN
OPEN
R13
100K
R14
221
R6
LF353
U1:A
-
2
+
3
4
8
1
100
R3
33nF
C7
+15V
-15V
221
R43
100
R39
LF353
U5:B
-
6
+
5
7
-15V
+15V
C19
33nF
R40
100
LF353
U5:A
1
8
4
+
3
-
2
R44
221
R47
100K
R46
OPEN
-15V
+15V
C26
33nF
R50
100
LF353
U7:A
1
8
4
+
3
-
2
R56
221
R61
100K
R60
OPEN
221
R57
OPEN
R62
100K
R63
100
R51
LF353
U7:B
-
6
+
5
7
-15V
+15V
C33
33nF
R67
100
LF353
U9:A
1
8
4
+
3
-
2
R69
221
R78
100K
R77
OPEN
221
R70
10K
R68
LF353
U9:B
-
6
+
5
7
10K
R18
10K
R1
R16
100K
R15
OPEN
OPEN
R33
100K
R34
100K
R49
OPEN
R48
TIP32C
Q5
D11
1N4148
D12
1N4148
R83
5.62
10K
R87
V+
R89
24.3K
2N5551
Q7
1N4148
D19
1N4148
D18
133
R96
TIP31C
Q6
1N965B
D16
D10
1N4002
D7
1N4002
D17
1N4002
2.2K 5W
R86
10000uF 63V
C48
10000uF 63V
C42
33nF
C4
C9
33nF
C17
33nF
C24
33nF
C30
33nF
40A
BR1
+
-
CON15
3
1
4
2
100K
R80
.1 5W
R103
R104
.1 5W
.1 5W
R105
.1 5W
R106
.1 5W
R107
7/7/97
AV2500 OUTPUT, INPUT & POWER SUPPLY
C
P/N 10854/10855/10856
10854C00.s01
R BUS
>
>
AC
SEC IN
4.7K 2W IF V+ >60V
*
*
CTRL IN
CTRL OUT
ENABLE
CTRL
ROT
LOT
L+R
IN 5
IN 4
IN 3
IN 2
IN 1
ESM
1
1
10/23/94
5mA
L BUS
L OUT
R OUT
L+R OUT
L+R BUS
L BUS
R BUS
CH 1
R BUS
L BUS
R BUS
R BUS
CH 5
CH 4
CH 2
CH 3
L BUS
R BUS
LEVEL
NO LEVEL
LEVEL
NO LEVEL
LEVEL
NO LEVEL
LEVEL
NO LEVEL
LEVEL
NO LEVEL
L+R BUS
L+R BUS
L+R BUS
L+R BUS
L+R BUS
L BUS *
L BUS *
OUT 4
OUT 3
OUT 2
OUT 1
OUT 5
R OUT
L+R
L OUT
IN1
IN2
IN5
IN4
IN3
L BUS
L+R BUS
R BUS
CH 3
CH 4
CH 5
L BUS*
+LBUS
-LBUS
A
B
C
D
E
F
G
H
6
5
4
3
2
1
H
G
F
E
D
C
B
A
1
2
3
4
5
6
D
Rev
Number
Title
Size
Date
Filename
Drawn by
of
Sheet
YEL
GRY/WHT
RED
GRN
VIO
BLU
BRN
ORN
GRY/BLK
WHT
BLK
100V
120V
120V
0
0
43V
27V
43V
27V
10866.S01
RED
APPROX. MAX DIMENSIONS OF TOROIDAL TRANSFORMER:
THE SECONDARY VOLTAGES LISTED ARE FOR FULL LOAD CONDITIONS.
B&K COMPONENTS LTD.
ESM
1
1
-
LEAD LENGTH: 9"
THE ABOVE PHYSICAL DIMENSIONS ARE MAXIMUM DIMENSIONS.
1/18/95
* OPTIONAL
HEIGHT: 2.65"
APPROX. MAX MOUNTING DIM. 4.5"
300VA MULTI SEC/PRI TOROID
300VA MULTI SEC/PRI
B&K P\N 10866
7/22/97
A
B
C
D
4
3
2
1
D
C
B
A
1
2
3
4
of
Sheet
Drawn by
Rev
Number
Title
Size
A
Date
Filename
Printed Circuit Boards
Printed Circuit Boards
PCB’s
PCB’s
B&K COMPONENTS, LTD.
2100 Old Union Road
Buffalo, New York 14227-2725
U.S.A.
Bill of Materials
Bill of Materials
BOM’s
BOM’s
B&K COMPONENTS, LTD.
2100 Old Union Road
Buffalo, New York 14227-2725
U.S.A.
File: D:\B&K_Rob\Service Booklets\Bom\10854C.BOM 7/11/97, 11:58:20AM
Bill of Material for P/N 10854
AV2500 MAIN BOARD/POWER SUPPLY/INPUT/VOLUME CONTROL BOARDS
Comment Pattern Quantity Components
------------------------------------------------------------------------------
.1 5W RES5WAXIAL 5 R103, R104, R105, R106, R107
PCB.SPADE FASTON.25 14 AC1, AC2, GND1, GND2, GND3,
GND4,OUT1, OUT2, OUT3, OUT4,
OUT5, GND5, NC1, NC2
12HEADER 12PINHEAD 5 CON1, CON2, CON4, CON7, CON8
2PDTPUSH 2PDT.24 1 SW1
4HEADER 4PINHEAD 1 CON15
5 PIN MOLEX5 1 CON12
400V 40A BRIDGE.HP 1 BR1
33nF RAD200 23 C2, C4, C5, C7, C9, C11, C13,
C14, C17, C19, C20, C22, C24,
C26, C28, C30, C31, C33, C35,
C37, C39, C43, C45
1N4148 D0-35 18 D1, D2, D3, D4, D5, D6, D7, D8,
D10, D11, D12, D15, D17, D18,
D19, D20, D21, D22
FUSE 8A SB FUSE.3AG 2 F1, F2
JUMPER JUMP.5 2 J11, J12
LM3886 LM3886 5 U2, U4, U6, U8, U10
MOLEX CONN12 2 CON9, CON10
TIP-31C TO220 2 Q4, Q6
2N5551 TO92 3 Q2, Q3, Q7
OPEN JUMP.5 1 J14
TIP-32C TO220 2 Q5, Q8
2N5401 TO92 1 Q1
10uF NP CAP200RP 5 C1, C10, C18, C27, C36
100uF 100V POL CAP200RP 12 C3, C6, C12, C15, C21, C23,
C29, C32, C38, C44, C50, C51
100uF 25V POL CAP200RP 7 C8, C16, C25, C34, C40,
C46, C49,
10000uF 50V CAPPOWB.PCB 4 C41, C42, C47, C48
50K POT VOLSS.2 5 R9, R35, R52, R71, R88
RCA.X1 RCAX1 1 CON6
RCA.X2 RCA.X2 2 CON3, CON5
10K RES 7 R1, R7, R18, R65, R68,
R79, R87
1K RES 13 R17, R22, R29, R41, R58, R75,
R76, R95, R98, R99, R100, R101,
R102
.1 5W RES 5 R103, R104, R105, R106, R107
OPEN RES 10 R13, R15, R28, R31, R33,
R46, R48, R60, R62, R77
100K RES 10 R14, R16, R32, R34, R47,
R49, R61, R63, R78, R80
100 RES 9 R2, R3, R20, R23, R39,
R40, R50, R51, R67
24.3K RES 3 R21, R24, R89
221 RES 10 R5, R6, R25, R26, R43,
R44, R56, R57, R69, R70
Page: 1
File: D:\B&K_Rob\Service Booklets\Bom\10854C.BOM 7/11/97, 11:58:20AM
133 RES 2 R30, R96
1.5K RES 5 R4, R27, R45, R64, R85
2.26K RES 10 R11, R12, R37, R38, R54, R55,
R73, R74, R91, R92
JUMPER RES 1 R66
475 RES 1 R8
3.01K RES 4 R82, R84, R93, R94
5.62 RES 1 R83
2.2K 5W R5W.R 1 R86
33.2K RES400 10 R10, R19, R36, R42, R53, R59,
R72, R81, R90, R97
LF353 DIP8 5 U1, U3, U5, U7, U9
1N965B D0-35 4 D9, D13, D14, D16
Page: 2