Revision C • 10/07
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5-5
5 Service
Control Panel Servicing
Control panels are a “button sandwich” consist-
ing of separate buttons and conductive plastic con-
tact sheets between a switchboard PCA and a metal
faceplate with plastic inlay. Control panels are not
a field-serviceable assembly, but they do have lim-
ited field-replaceable parts. All replaceable parts
(10-character display and lens, rotary and fader
knobs, fader, rear cover) are listed on page 5-2.
NOTE
: Do NOT disassemble the faceplate/
switchboard subassembly on the Universal Dual
Fader panel or the Monitor Control panel, as these
are assembled using a fixture.
Universal Dual Fader panels can be removed or
installed, with the console powered and on-air,
without causing any audio interruption or noises
in the program audio. The new panel assumes the
removed panel’s button settings when plugged in,
but all fader and pot levels will change to the new
panel’s control settings. It is recommended that
all bus assignments be turned off prior to unplug-
ging a Universal Dual Fader panel.
Before removing a powered Monitor Control
panel, turn off all speaker power amplifiers.
REMOVING CONTROL PANELS
To remove a Dual Fader or Monitor Control
panel from the frame:
1
Use the included hex tool (70-90) to remove
the top and bottom silver hex screws (38-88).
There are two screws top and bottom on each
Dual Fader panel. There are three screws top
and bottom on the Monitor Control panel.
2
Carefully lift the panel up from the top edge,
so the red CAT-5 cable can be reached and
unplugged from the bottom of the panel.
NOTE
: If you need to replace one of the assem-
blies, please contact Harris Technical Services
Department for service or replacement parts.
Installing Control Panels
To install a Dual Fader or a Monitor Control
panel into the frame:
1
Remove any blank panels covering the slots
where the control panel is to be installed.
2
Set the bottom end of the panel on the front
rail support fingers. Lower the panel toward
the top rail until the red CAT-5 cable can be
plugged into the panel’s RJ-45 jack (bottom
panel, upper middle section).
3
Lower the panel onto the top rail.
4
Fasten the panel to the frame using the 38-88
silver hex screws removed previously.
FADER SERVICING
There are no replaceable or rebuildable parts
on the RMX
digital fader assembly. Fader service
is comprised of cleaning and lubricating. Faders
are conductive plastic, single-element faders.
If the fader movement is rough, either the lubri-
cant on the glide rails has evaporated or foreign
material has gotten into the fader. Dow Corning
510 is the preferred glide rail lubricant. Other oils
or lubricants may cause contamination by migrat-
ing to the contact fingers and damaging the con-
ductive plastic or causing intermittent operation.
Fader Disassembly and Cleaning
To disassemble and clean a fader:
1
Remove the control panel with the problem
fader from the frame.
2
Remove the rear cover from the control panel
(four screws per side).
3
Unplug the problem fader, pull off the fader
knob, and remove the two fader hex screws
(use 70-90 tool) to remove the fader from the
control panel.
4
Remove the snap-on fader cover (held in place
by plastic end tabs).
5
Clean the fader using a dry cotton swab or
one dampened only with distilled water.
Summary of Contents for RMXDIGITAL
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