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
47
Example 7:
“PLUG”
function.
Press the
PLUG
key individually to show you the status of I/O jack.
“O”
is specified for
the I/O jack is used and
“X”
is specified for unused.
Key
LCD Display
MX-3UB
MX-4UB
MX-7UB
Example 8:
“INFO”
function.
Press the
INFO
key individually to show you the device information.
Key
LCD Display
MX-3UB
MX-4UB
MX-7UB
