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.
ABCDEFGH
1 1
V+
V+
L BUS
R1
+15V
C1
R2
10K 11 12
LEVEL
LM3886
R3
100 1
10uF NP
5
L BUS L OUT
R4
100 9 10 10 V
NO LEVEL
V IN+ V
+
6 - +
1.5K
8 R5 M R103
2 - U1:B 7 U2 U 3
OUT
L BUS 7 8 T
R6
U1:A 1 5 221 E .1 5W
C
+ G V
W 9 - 8 OUT 1
V IN- N
3 221
D
+
LF353 L+R BUS 5 6
4
4 W
7
LF353 R BUS 3 4
C
C
W
CH 1 1 2
V-
Q1 C8
R17
-15V
2 2N5401 CON1 2
1K
R BUS 100uF 25V
R18 R19
+15V
R20
10K 33.2K
R23
100 V+
R BUS R OUT
5mA
100
6 -
C10
8 R25
2 - U3:B 7 LEVEL 11 12
LM3886
Q2 R26
10uF NP
U3:A 1 5 221 1
+ 5
2N5551
R27
3 221 9 10 10 V
NO LEVEL
+ V IN+ V
LF353 +
+
4 1.5K
M R104
U4 U 3
R28 OUT
L BUS 7 8 T
E .1 5W
LF353 C
G V
OPEN W 9 - 8 OUT 2
V IN- N
D
L+R BUS 5 6
4
W
7
-15V
R BUS 3 4
L+R BUS C
+15V
C
W
R39
CH 2 1 2
V-
C16
R40 R41
100
L+R BUS L+R OUT
V-
3 CON2 3
100 1K
100uF 25V
R42
6 -
8 R43
2 - U5:B 7 33.2K
R44
U5:A 1 5 221 V+
+
3 221
R98 +
IN1 LF353
4
IN 1 LEVEL C18
R99
IN2 1K 11 12
IN 2 LM3886
1K 1
LF353 10uF NP
5
NO LEVEL
R45
INPUTS 9 10 10 V
R100 V IN+
IN3 + V
+
1.5K
IN 3 M R105
R101
IN4 1K 3
L BUS U6 U
OUT
IN 4 7 8 T
-15V
1K E .1 5W
C
G V
CON3 W 9 - 8 OUT 3
+15V V IN- N
L+R BUS D
CH 3 5 6
4
W
7
R50 R51
R BUS
3 4
100 100
C
R102
IN5 C
W
IN 5 8 CH 3
L+R 1K 2 -
6 -
1 2
V-
L+R C25
R56 R57 R58
4 U7:A 1 U7:B 7 CH 4 4
CON4
OUT/IN 3 221 5 221 1K
100uF 25V
+ + R59
L OUT
4
LOT
33.2K
R OUT LF353
ROT
V+
LF353 1 2
CON5
CTRL
3 4 C27
CTRL IN LEVEL 11 12
-LBUS LM3886
-15V
CTRL OUT CON15 10uF NP 1
5
R64
+15V
CON6 +LBUS NO LEVEL 9 10 10 V
V IN+
CH 5 + V
+
1.5K
M R106
U8 U 3
R67 R68 OUT
L BUS * 7 8 T
E .1 5W
1 2 3 C
G V
100 10K W 9 - 8 OUT 4
V IN- N
D
CTRL 8 L+R BUS 5 6
4
2 - 7
6 -
W
ENABLE Q3 R69 R70
U9:A 1 U9:B 7 L BUS*
6 5 4 2N5551 R BUS 3 4
3 221 5 221
C
+ +
C
4 W
LF353 CH 4 1 2
V-
C34
R76
5 LF353 5
CON7
1K
D8 100uF 25V
R81
33.2K
D21 1N4002
F1
+15V
-15V V+
8A SB
1N4002 Q4 TIP31C
V+
V+ R82
C36
R83 Q5 LEVEL 11 12
3.01K
LM3886
R84
10uF NP 1
5
5.62
TIP32C *
R85
3.01K 9 10 10 V
NO LEVEL
V IN+ V
+
D11 D12 Q6 +
1.5K
M R107
TIP31C U10 U 3
OUT
1N4148 1N4148 + L BUS * 7 8 T
E .1 5W
C
R87 G V
W 9 - 8 OUT 5
> BR1 V IN- N
D
10K 5 6
L+R BUS
4
AC - W
7
40A
SEC IN
R BUS 3 4
C
> R93
D18 D19 C
W
3.01K 1 2 Title 6
6 Q7 R94 V-
CH 5
1N4148 1N4148 C49 AV2500 OUTPUT, INPUT & POWER SUPPLY
R95
2N5551
R96
3.01K
CON8
1K
100uF 25V
R97
133 Size Number Rev
1N4002 Q8 TIP32C
F2
-15V P/N 10854/10855/10856
33.2K
C
8A SB D
* 4.7K 2W IF V+ >60V D22 D20
Date 10/23/94 ESM
V- Drawn by
1N4002 7/7/97
10854C00.s01 1 1
Filename Sheet of
ABCDEFGH
R8
C5
C2
C6
C3
50K
.12uF
.12uF
R9
R10
R11
R12
33.2K
2.26K
2.26K
100uF 100V
100uF 100V
R13
R14
R15
R16
D2
D1
100K
100K
OPEN
OPEN
1N4148
1N4148
R21
R7
24.3K
10K
R24
24.3K
475
1K
133
1K
R29
R30
R22
R31
R32
R33
R34
100K
100K
OPEN
OPEN
C14
C11
C15
C12
50K
.12uF
.12uF
D4
D5
D3
R36
R37
R38
R35
33.2K
2.26K
2.26K
100uF 100V
100uF 100V
1N4148
1N4148
1N4148
R46
R47
R48
R49
100K
100K
OPEN
OPEN
C22
C20
C23
C21
50K
.12uF
.12uF
R53
R54
R55
R52
33.2K
2.26K
2.26K
100uF 100V
100uF 100V
R60
R61
R62
R63
100K
100K
OPEN
OPEN
R65
10K
R66
JUMPER
R79
10K
SW1
C31
C28
C32
C29
50K
.12uF
.12uF
R72
R73
R74
R71
33.2K
2.26K
2.26K
100uF 100V
100uF 100V
1K
R75
C33
C30
C26
C24
C19
C17
C13
C9
C7
C4
33nF
33nF
33nF
33nF
33nF
33nF
33nF
33nF
33nF
33nF
R77
R78
R80
100K
100K
OPEN
D9
C35
D6
33nF
1N4148
1N965B
D10
D7
1N4002
1N4002
R86
2.2K 5W
C50
100uF 100V
C51
C43
C37
C44
C38
50K
.12uF
.12uF
D14
D13
100uF 100V
R89
R90
R91
R92
R88
D15
24.3K
33.2K
2.26K
2.26K
100uF 100V
100uF 100V
C47
C41
C48
C42
C45
C39
C46
C40
1N965B
1N965B
33nF
33nF
1N4148
D16
D17
100uF 25V
100uF 25V
1N4002
1N965B
10000uF 63V
10000uF 63V
10000uF 63V
10000uF 63V
AB C D
1 1
300VA MULTI SEC/PRI TOROID
0 43V
BLK BLU
27V
VIO
100V * OPTIONAL
GRY/BLK
120V RED
ORN GRN
BRN RED
0
2 2
27V
GRY/WHT
120V 43V
WHT YEL
THE SECONDARY VOLTAGES LISTED ARE FOR FULL LOAD CONDITIONS.
3 3
APPROX. MAX DIMENSIONS OF TOROIDAL TRANSFORMER:
HEIGHT: 2.65"
APPROX. MAX MOUNTING DIM. 4.5"
LEAD LENGTH: 9"
THE ABOVE PHYSICAL DIMENSIONS ARE MAXIMUM DIMENSIONS.
Title
B&K COMPONENTS LTD.
4 B&K P\N 10866 4
Size Number Rev
-
300VA MULTI SEC/PRI
A
1/18/95 ESM
Date
Drawn by
7/22/97
1 1
Filename 10866.S01 Sheet of
AB CD
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