Allen&Heath ML3000 USER GUIDE - Manual (Page 7)

ML3000 User Guide 7
S YSTEM BLOCK DIAGRAM
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Problems ?
The channel is routed but there is no audio. If it is assigned to a VCA group check that the group fader is up.
The audio groups do not work. Check the setting of the fader master 1-4 mode switches.
The PAN control does not work. Check the setting of the BLEND control.
The console takes a long time to power up. Check the rear panel slide switch. RS232 takes longer to boot than MIDI.
+ -
IN
P U
T
GA
IN
+48V
PA
D
LF
LM
H F
EQ I
N
4 B
A
ND
E
Q
U A LI
S
E R
MET
E R
IN
S
E R T
PO
S T-
E Q
P R E-
EQ
PA
N
BL
END
MI
X
L
RL
R
C
PR
E -IN
S E R T
PE
A K
LC
R +
PO
S T-
TR
IM
PR
E -F
A D E
PO
S T-
FA
D E
DIR
E
C T O
U T
(A
U X 1 O
N LY
)
PO
S T-
M U TE
PR
E -FA
D E A
U X
OP
TI O
N L IN
KS
OP
TI
ON
L
IN
K S
DI
RE
C T O
U T
AUX 1
AUX
1
PR
E
M
O
NO CHAN
N
EL
MU
TE
FAD
E
R
PF
L
MU
TE
G
R O U P S
VC
A G
R O U PS
VC
A
MI
X
MU
TE
FA
D E R
MO
D E
AF
L
PA
N
BL
E
N D
MA
IN
MI
X
L
RL
R
C
LC
R
+
TB E
N AB
LE
BAL
GR
P O
U T
(1-
4
ON
LY)
AFL
L MI
X
FA
D E R
TB
BAL
OU
T
LEF
T
P re
ss M
OD
E to
r ever
se G
R P and AUX
m
ast
er
co
nt
ro
l s
ect
io ns
R M
IX
BAL
OU
T
RI
G
H
T
PR
E -IN
S E R T
PO
S T-
FA
D E
L
PR
E -IN
S E R T
PO
S T-
FA
D E
C M
IX
FA
D E R
TB
BA
L
OU
T
CEN
TRE
RI
G
H
T
L
C M
E TE
R
C
R
GR
P T
O MT
X
GRP 1
-4
AU
X 1
-4
AF
L
L MI
X
R M
IX
C MI
X
MA
S TE
R
SN
A P SH
O TS
TB GR
P
AF
L
TB L MI
X
R M
IX
C MI
X
ML30
00 B
LOCK
DI
AG
RA
M
GR
P 1
GR
P 2 L R
GR
P 3
GR
P 4 C
LE
V E L
ON
BA
L
OU
T
AFL
AF
L
MA
TR
IX
MA
TR
IX
AF
L
PFL
WE
D G
E mo
de
+ -
L
+ -
2T
R K
IN
R
OU
T
2TR
K
R
+ +
C
LR
2T
R
K
L R C
+
MON
O
L
MO
NIT
O
R
LO
CA
L
R
LO
CAL
HE
A D PH
O
N
E S
L R
PHO
N
E S
WE
D G E M
O
N
WE
D G E M
O
N
TB
DIM
AF
L M
IX
PF
L M
IX
L M
E TE
R S
R M
E
TE
R S
C MET
E R S
ME
TE
RS 1-
4
ME
TE
RS 5-
8
MET
E
R SEL
E CT
GR
P
AUX
MA
TR
IX
MON
ITOR
+ - TR
IM
+48V
TB
M
IC
TA
LK
TO
T
B
+
OS
C/NOI
S E T
O
TB
DIM
MO
N IT O
R D
IM
TB
PI
NK
NOI
SE
1k
H z O
S C
TRI
M
Di
sa
bl
e
OS
C
/NOIS
E/
TA
LKB
AC
K
MO
NI
TO
R SO
U R C E
+ -
GA
IN
LF
EQ
IN
4 B
A ND
E
Q
U A
LI
S E R
MET
E R
PO
S T-E
Q
P R E-
EQ
BA
L
BL
END
MAI
N
MI
X
L
RL
R
C
PE
A K
LC
R+
PR
E -F
A D E
PO
S T-F
A D E
PR
E
PO
S T- M
U TE
PR
E -FA
D E A
U X
OP
TI ON
L
IN
K S
PR
E
S
TE
R
EO
CH
A
NN
E
L
MU
TE
FAD
E
R
PF
L
MU
TE
GR
O
U PS
VC
A G
R O U P S
VC
A
SN
A P SH
O
TS
PF
L
L M
IX
R M
IX
C M
IX
+ - + -
GA
IN
+ -
R
L/
M
IN
P U T ST1(3)
+
ON ON
MONO
LM
HM
HF
+
+
+
L R M L R M
PF
L
L M
IX
R M
IX
C M
IX
HM
HPF FR
E Q
FI
LT
E R
GR
O
U
P
A SSI
GN
GR
P 1
GR
P 2
GR
P 3
GR
P 4
PR
E
AUX
7
AUX 8
AUX 7
AUX
8
LE
V 7
-8
ST
E
R E O
PA
N
AUX 2
AU
X 2
AUX 3
AUX
3
AUX 4
AUX
4
AUX 5
AUX
5
PRE AUX 6
AUX
6
1-
2
3-
4 GR
O
U
P
AS
S IG
N
GR
P 1
GR
P 2
GR
P 3
GR
P 4
1-
2
3-
4
AUX 1
AUX
1
AUX 2
AUX
2
AUX 3
AUX
3
AUX 4
AU
X 4
AU
X 5
AUX
6
AUX 5
AUX 6
PR
E
AUX
9
AUX8
AUX
7
A
U X10
7- 8 L
E V
ST
E R
E O
PA
N
BAL
AU
X O
U
T
TO V
U M
E TE
R
MI
X
AUX
(1
-4
O
N LY
)
AU
X
5-
8
IN
P U
T S
T2(4)
R
EXT
.IN
- +
IN
S
E R T
TB/
O SC
O
U T
IN
S E
R T
IN
S
E R T
IN
S
E R T
FA
D E R
IN
S
E R T
C
PF
L
PA
FL
L
O GI
C
AFL
PF
L
AFL
SL SL
SL SL
LEF
T
CENTR
E
SL
SL SL
SL
SL
R L
L/
M