ALLEN & HEATH ML3000 Service Manual

Kernick Industrial Estate,
Penryn, Cornwall,
England. TR10 9LU
+44 (0)8707 556250
+44 (0)8707 556251
2.1
ML3000 STEREO INPUT
4451 2 3
PAGE:
TITLE:
DRG No: ISSUE: SHEET: OF
ISSUE BY DATE
FILE: C4451_2.1P2.Sch 13:56:20 12-Dec-2001
ALLEN&HEATH
Tel:
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PRINTED:
ABCDEFGH
a
b
c
d
e
Ec-
3
-IN
1
8
V+
7
V-
5
GND
6
Ec+
4
Ec+
2
U7A
THAT 2155
3
2
1
U9A
TL072
R131
18K
R130
18K
C25
47/25
R136
47R
R139
330K
1 3
2
PR1
22K PRESET
+VA
+VA
-VA
-VA
-VA
C47
22P/DISK
CV
POST_EQ_L
C76
100/25
16
4
VR16A
10KAC
2 5
3
VR16B
10KAC
R63
4K7
R64
4K7
R67
4K7
R68
4K7
R69
4K7
R72
10K
R74
10K
R73
10K
R75
10K
2
1
3
SW10A
SUN 2P
5
4
6
SW10B
SUN 2P
2
1
3
SW11A
SUN 2P
5
4
6
SW11B
SUN 2P
GRP_1
GRP_2
GRP_3
GRP_4
2
1
3
SW9A
SUN4P L
5
4
6
SW9B
SUN4P L
8
7
9
SW9C
SUN4P L
11
10
12
SW9D
SUN4P L
1 6
4
VR15A
2X20KB
2 5
3
VR15B
2X20KB
MIX_R
MIX_L
MIX_C
R141
3K9
R142
3K9
Ec-
3
-IN
1
8
V+
7
V-
5
GND
6
Ec+
4
Ec+
2
U8A
THAT 2155
5
6
7
U9B
TL072
R133
18K
R132
18K
C26
47/25
R137
47R
R140
330K
1 3
2
PR2
22K PRESET
+VA
+VA
-VA
-VA
C48
22P/DISK
CV
POST_EQ_R
C77
100/25
POSTFADE_R
POSTFADE_L
1 2
JP1
JUMP 2 STRT
1 2
JP2
JUMP 2 STRT
1 2
JP3
JUMP 2 STRT
1 2
JP4
JUMP 2 STRT
1 2
JP5
JUMP 2 STRT
1 2
JP6
JUMP 2 STRT
R79
10K
R81
10K
R82
10K
R84
10K
R86
10K
3
2
1
U10A
TL072
Q1
J111N
Q2
J111N
C27
47/25
C49
22P/DISK
R127
180K
MUTE_DC
PRE_EQ_L
PRE_EQ_R
POST_EQ_R
POST_EQ_L
R80
10K
R96
10K
R83
10K
R85
10K
R87
10K
5
6
7
U10B
TL072
Q3
J111N
Q4
J111N
C28
47/25
C50
22P/DISK
R128
180K
3
2
1
U11A
TL072
5
6
7
U11B
TL072
R89
10K
R88
10K
R91
10K
R90
10K
PREFADE_L
PREFADE_R
POSTFADE_R
POSTFADE_L
2
1
3
SW5A
SUN2P L
5
4
6
SW5B
SUN2P L
2
1
3
SW6A
SUN2P L
5
4
6
SW6B
SUN2P L
C29
47/25
C30
47/25
POSTFADE_MONO
PREFADE_MONO
1 3
2
VR7A
20KK
R92
10K
1 3
2
VR8A
20KK
R93
10K
1 3
2
VR9A
20KK
R94
10K
1 3
2
VR10A
20KK
R95
10K
1 3
2
VR11A
20KK
R97
10K
1 3
2
VR12A
20KK
R98
10K
AUX_1 AUX_2 AUX_3 AUX_4
AUX_5 AUX_6
2
1
3
SW7A
SUN4P L
5
4
6
SW7B
SUN4P L
8
7
9
SW7C
SUN4P L
11
10
12
SW7D
SUN4P L
POSTFADE_MONO
PREFADE_MONO
POSTFADE_L
PREFADE_L
PREFADE_R
POSTFADE_R
2
1
3
SW8A
SUN4P L
5
4
6
SW8B
SUN4P L
8
7
9
SW8C
SUN4P L
11
10
12
SW8D
SUN4P L
1 6
4
VR13A
2X20KK
2 5
3
VR13B
2X20KK
8 9
BRKT
VR15C
2X20KB
R76
10K
3
2
1
U12A
TL072
5
6
7
U12B
TL072
R108
47K
R109
47K
16
4
VR14A
10KAC
2 5
3
VR14B
10KAC
R77
10K
R78
10K
AUX_7
AUX_8
PEAK_3
PEAK_4
8 9
BRKT
VR16C
10KAC
8 9
BRKT
VR14C
10KAC
8 9
BRKT
VR13C
2X20KK
5 6
BRKT
VR7B
20KK
5 6
BRKT
VR8B
20KK
5 6
BRKT
VR9B
20KK
5 6
BRKT
VR10B
20KK
5 6
BRKT
VR11B
20KK
5 6
BRKT
VR12B
20KK
V-
4
V+
8
U9C TL072
V-
4
V+
8
U10C
TL072
V-
4
V+
8
U11C
TL072
V-
4
V+
8
U12C
TL072
-VA
+VA
C70
100N 63V/PE
C69
100N 63V/PE
POT_GND1
R134
5K6
R135
5K6
R65
10K
R66
10K
D6

ALLEN & HEATH ML3000 Specifications

General

Brand	ALLEN & HEATH
Model	ML3000
Category	Recording Equipment
Language	English