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
39
Example 2:
Switch the NO.1 and NO.2 input signals to NO.1 and NO.2 output channels.
(1) Press the NO.1 key of the output channel, then the input channel will begin to flicker.
Key
LCD Display
MX-3UB
MX-4UB
MX-7UB
(2) Press the NO.1 key of the Input channel.
Key
LCD Display
MX-3UB
MX-4UB
MX-7UB
