M
M
M
X
X
X
-
-
-
3
3
3
U
U
U
B
B
B
/
/
/
M
M
M
X
X
X
-
-
-
4
4
4
U
U
U
B
B
B
/
/
/
M
M
M
X
X
X
-
-
-
7
7
7
U
U
U
B
B
B
42
(2b) Press
ALL
key then select input 16 that indicate all outputs will switch to selected
inputs. E.g. Input is 16.
Key
LCD Display
MX-4UB
(2c) Press
ALL
key then select input 32 that indicate all outputs will switch to selected
inputs. E.g. Input is 32.
Key
LCD Display
MX-7UB