ALLEN & HEATH ML3000 Service Manual

Kernick Industrial Estate,
Penryn, Cornwall,
England. TR10 9LU
+44 (0)8707 556250
+44 (0)8707 556251
2
ML3000 MONO INPUT
C4450 1 2
PAGE:
TITLE:
DRG No: ISSUE: SHEET: OF
ISSUE BY DATE
FILE: C4450_2P1.Sch 11:11:35 12-Dec-2001
ALLEN&HEATH
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ABCDEFGH
a
b
c
d
e
1
2
3
4
5
6
7
8
9
10
11
12
CN1
90 DEG FFC
R2
1K0
R5
6K8
R6
6K8
R14
47K
R15
47K
R27
8K2 1%
R28
8K2 1%
R16
47K
R17
47K
R18
47K
R19
47K
R29
2K2 1%
C2
100N 63V
C3
47/63
C4
47/63
C5
330P
C8
47/25
C9
47/25
C27
1N/MYL
C6
330P
C7
330P
2
1
3
SW2A
SUN 2P
5
4
6
SW2B
SUN 2P
2
1
3
SW3A
SUN 2P
5
4
6
SW3B
SUN 2P
Q1
2SB737
Q2
2SB737
Q3
BC549
Q4
BC549
R33
4K7 1%
R34
4K7 1%
R38
10R
R37
10R NF
13
2
VR1A
10K Z LAW
C29
1000/6.3
R31
820R 1%
R32
820R 1%
R61
1K2 1%
R62
1K2 1%
R35
4K7 1%
R36
4K7 1%
C35
100P
C34
100P
R7
6K8
R39
22K
1 6
4
VR2A
2X200KC
2 5
3
VR2B
2X200KC
8 9
BRKT
VR2C
2X200KC
C16
47/25
R50
22R
INSEND
5
4 6
SW1B
SUJ 2P
2
1 3
SW1A
SUJ 2P
+VC
-VC
3
2
1
U2A
TL072
V-
4
V+
8
U2C
TL072
13
2
VR3A
20KB
1 3
2
VR7A
20KB
1
3 2
VR6A
200KC X2
R21
47K
R22
47K
C28
1N/MYL
C36
22P
C45
22N/MYL
C46
22N/MYL
R9
6K8
R10
6K8
5
6
7
U2B
TL072
13
2
VR8A
20KB
1 3
2
VR5A
20KB
1
3 2
VR4A
200KC X2
C37
22P
R11
6K8
R12
6K8
C51
1N5/MYL
C52
1N5/MYL
R60
1K8
C41
330N 50V/PE
R59
27K
R23
47K
R24
47K
C10
47/25
C11
47/25
C12
47/25
5
4
6
SW4B
SUN 2P
2
1
3
SW4A
SUN 2P
Ec-
3
-IN
1
8
V+
7
V-
5
GND
6
Ec+
4
Ec+
2
U6A
THAT 2155
1 2
JP3
JUMP 2 STRT
1 2
JP2
JUMP 2 STRT
1 2
JP1
JUMP 2 STRT
1 2
JP8
JUMP 2 STRT
1 2
JP7
JUMP 2 STRT
1 2
JP6
JUMP 2 STRT
+VA
R63
18K
R72
5K6
R75
47R
R77
330K
1 3
2
PR1
PRESET 22K
3
2
1
U5A
TL072
V-
4
V+
8
U4C
TL072
5
6
7
U4B
TL072
R64
18K
C38
22P
C13
47/25
-VA
+VA
-VA
PRE_EQ
C39
22P
C15
47/25
R67
10K 1%
R68
10K 1%
R66
10K 1%
R65
10K 1%
R70
68R
R69
68R
DIR+
DIR-
PREFADE_1
AUX1_LEV
R73
5K6
R74
5K6
R13
6K8
R78
10K
R79
10K
R97
150K
3
2
1
U4A
TL072
5
6
7
U5B
TL072
V-
4
V+
8
U5C
TL072
C17
47/25
C18
47/25
C40
22P
Q6
J111N
Q5
J111N
PRE_EQ
INSEND
PREFADE_1
D3
1N4148
D4
1N4148
R98
680K
R99
180K
R43
4K7
C33
100N
C42
330N 50V/PE
LG
METER
1 2
JP4 JUMP 2 STRT
1 2
JP5 JUMP 2 STRT-VC
MUTE_FET
CV
POSTFADE_1
POSTFADE_2
POSTFADE_1
PREFADE_1
PREFADE_2
R26
47K
R25
47K
+48V
MIC-
MIC+
INSRET
INSEND
DIR-
DIR+
INSRET
D1
1N4148
D2
1N4148
-VC
-VC
PEAK_1
PEAK_2
PEAK_3
MIC-
MIC+
5 6
BRKT
VR1B
10K Z LAW
5 6
BRKT
VR3B
20KB
5 6
BRKT
VR8B
20KB
5 6
BRKT
VR7B
20KB
5 6
BRKT
VR5B
20KB
5 6
BRKT
VR4B
200KC X2
5 6
BRKT
VR6B
200KC X2
+VC
-VC -VA
+VA
C31
100N
C32
100N
C30
100N
R51
0R0
3
2
1
U3A
TL072
5
6
7
U3B
TL072
V-
4
V+
8
U3C
TL072
C19
47/25
LD1
GREEN NF
+VA
C48
100/25
C49
100/25
R71
0R0
LG
POT_GND
POST_EQ_SW
R120
47K
R1 47K
C1
47/63
C64 100N/MYL
R8
6K8
FACTORY FIT
FACTORY FIT
FACTORY FIT
R55
6K8
R54
68K
R56
2K7
R57
2K7
3
2
1
U1A
NE5532
5
6
7
U1B
NE5532
V-
4
V+
8
U1C
NE5532
C43
150N 63V/PE
C44
150N 63V/PE
R41
3K3
R42
3K3
C14
100P/DISK
R20
3K3 NF
R3
0R0
D2

ALLEN & HEATH ML3000 Specifications

General

Brand	ALLEN & HEATH
Model	ML3000
Category	Recording Equipment
Language	English