4
MLC Plus 84 EU and MLC Plus 84 MK • Setup Guide (Continued)
Step 3: Change Buttons (optional)
Replace one or more buttons or button pairs using available additional buttons. Optional button kits are available in various languages.
NOTE:
A custom button builder tool is available at
http://www.extron.com/product/custombuttonbuilder/index.aspx
where you can order custom-labeled buttons for the MLC Plus 84.
The faceplates must be removed to access buttons. To replace the buttons:
1.
Remove one or both
faceplates as follows:
a.
Slide the
center divider bar
up (as shown in
figure 7) and
remove it from the
unit. Set it aside
for later use.
Figure 7.
Removing the Center Divider
b.
If removing the volume control faceplate, remove
the volume control knob as follows:
1.
Viewing the unit from the bottom, look through
the faceplate notch below the
Volume
knob
and rotate the knob until the set screw is
visible through and aligned with the opening.
2.
Use a small (
1
/
20
") Allen wrench (hex key)
inserted into the notch in the faceplate at the
bottom of the knob to loosen the set screw
that secures the knob.
3.
Pull the knob away from the faceplate and set
it aside.
VOLUME
MUTE
DISPLA
Y
OFF
ON
PC
DOC
CAM
LAPTOP
1
LAPTOP
2
HDMI
VGA
VOLUME
MUTE
DISPLA
Y
OFF
ON
PC
DOC
CAM
LAPTOP 1
LAPTOP 2
HDMI 1
HDMI 2
Notch
Figure 8.
Loosening
the Set Screw to
Remove the Volume Knob
c.
Insert the tip of a small, flat-bladed screwdriver (such as
an Extron Tweeker) through one of the
slots at the sides of an EU or MK
model faceplate, as shown
at right. There are four
slots per faceplate,
two on each
side.
d.
Press the tab into the body of the MLC Plus 84
to release the faceplate from the circuit board.
e.
Repeat steps
1c
and
1d
with the remaining slots and
tabs around the edges of the faceplate.
f.
Lift the faceplate away from the circuit board.
2.
Remove any buttons to be replaced as follows:
a.
Press the button or button pair from the front of the
faceplate out through the back of its faceplate opening.
If necessary, pull the buttons out gently from the back.
NOTE:
The smaller buttons are arranged in
pairs connected by a rubbery membrane.
b.
If you are replacing the faceplate, repeat step
2a
until all
buttons are removed.
c.
Set the removed buttons aside for later use.
3.
Insert a button or button pair as follows:
a.
Insert a new button or button pair from the back into
the appropriate opening in the faceplate.
b.
Align the two pegs in the upper left and
lower right corners of the button or
button pair (shown at right)
with the corresponding holes in the
faceplate. Press the button or buttons
into the faceplate so the buttons and pegs are seated
into the holes and faceplate opening.
c.
Repeat steps
3a
and
3b
for any additional buttons that
will be replaced or installed.
VOLUME
MUTE
DISPLA
Y
OFF
ON
PC
DOC
CAM
LAPTOP
1
LAPTOP
2
HDMI
VGA
Slot
Figure 9.
Pressing Faceplate Mounting
Tabs to Remove the Faceplate
OFF
ON
Pegs (2)