Mackie ART300A, Service Manual

Page: 16 / 22

ART300A Service Manual
16
R126
2K2
R127
2K2
R129 100K
Q29
BC560
1
2
Q30 BC550
2
Q31 BC550 2
Q32 BC550
2
R131
1M
D39
R130 3K3
R128
100
+15V
-15V
1
3
1
1
3
3
NOTE: ALL DIODES NOT SPECIFIED ARE 1N4148
3
R104
10K
C47 470n
R105
100
R119
10K
R120
10K
R121
10K
R122
1M
R123
1M
R124
1M
R125
1M
R132 10K
R134
10K
R136 10K
R137 220K
R98
M68
C51 4u7
+
D33 D34
D35
D36
D37
D38
C42 680n
C48 680n
C50
10u
+
IC6A
NE5532
3 2
1
+ -
+15V -15V 4
8
R96 10K
R97
100
C41
1u
+
ISO1
R999 1K
R99
10K
C44 33n
R100
1K8
1
IC6B
NE5532
5 6
7
+ -
IC8
MC34001P
3 2
6
+ -
+15V
-15V
-15V
4
4
71
5
R107
10K
1%
R108
10K
1%
R109
10K
1%
R110
10K
1%
R112
10K
1%
R113
10K
1%
R114
1K
R115
1K
R135
1K
C55 22n
C56 22n
C57 22n
IC4A
NE5532
2 3
1
IC5B
NE5532
6 5
7
IC5A
NE5532
2 3
1
R138
150K
+15V
+15V
+15V
-15V
-15V
-15V
4
8
4
8
4
8
R111
10K
1%
R116
1K
C49
100n
IC9A
NE5532
2 3
1
IC9B
NE5532
6 5
7
IC10B
NE5532
6 5
7
IC10A
NE5532
2 3
1
IC4B
NE5532
R133
10K
+15V
+15V
+15V
+15V
-15V
-15V
-15V
-15V
8 4
4
8
8
4
4
8
R117
2K7
R102
1K8
R103
1K8
C46 33n
R106
10K
1%
R118
47K
C54
1u
+
C58 22n
IC7B
NE5532
5 6
7
+
-
6 5
7
+15V
-15V
-15V
LOW
4
8
4 8
IC7A
MC34001P
3 2
1
+ -
-15V
4
R87
4K7
R88
4K7
R92 10K
C37
10n
C38
22n
C39
22n
C43
68n
R101
1K8
R90 3K3
IC2A NE5532
3 2
1
+
-
IC2B NE5532
5 6
+ -
+15V
+15V
+15V
-15V
-15V 4
8
8
4
8
7
C45
68n
+15V
HIGH
R89
4K7
R93
10K
C34
220p
R94
10K
C36
10n
R95
3K3
D40
D41
C52
10n
C53 10n
C40
2u2
+
R91
10K
IC3B
NE5532
5 6
7
+ -
IC3A
NE5532
3 2
1
+ -
+15V
+15V
-15V
-15V
4
4
8
8
+15V 8
C35
1u
+
CON1
1 2 3 4 5 6 7 8 9
10
-15V
-5V
+5V
+15V
-
1234
A B
C
D
12345678
Sheet 4 of 5
SE031851
ART300A Final Filter 31/01/1997
C D B
5678
A
ART 300A Low/High Crossover