Harris Legacy 99-1300-0, Operation & Technical Manual

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Revision B • 1/03
H A R R I S C O R P O R A T I O N
4-4
4 Maintenance
4
Clean the fader using either a dry cotton swab
or a cotton swab dampened with distilled
water.
Note: The use of chemical cleaners on the con-
ductive plastic will substantially shorten fader life.
Never touch the fader slider contact fingers while
cleaning the fader parts.
Use only a dry cotton swab, or a cotton swab
dampened with distilled water, to clean the fader
parts. Always use a clean dry swab to dry off the
conductive plastic tracks after cleaning. If the fader
rails are noticeably dirty, wipe them off using a
dry cotton swab before lightly lubricating the top
rail with Dow Corning 510 lubricant (or equiva-
lent).
If coffee, a soft drink, or other sugared liquid
has been spilled into the fader, remove it from the
module as soon as possible and remove the top
cover of the fader. Hold the fader under hot run-
ning water and move the fader slider back and
forth to dissolve the sugars and other chemicals.
Thoroughly dry the rails and conductive plastic
using dry cotton swabs and then lubricate the top
fader rail with Dow Corning 510 lubricant (or
equivalent).
Lubricating the Glide Rail
Move the fader slider to the middle of its travel
and place one drop of Dow Corning 510 lubricant
(or equivalent) on the top rail on either side of the
fader slider bushings. Move the slider through its
full travel to distribute the lubricant. Be sure to
wipe off any excess lubricant. Normally only the
top rail (the one on which the fader slider bush-
ings glide) requires lubricant.
Note : If you need to replace one of the assemblies,
contact Harris Technical Services for further in-
structions.
Installing Modules
To install a module into the mainframe:
1 Open the meter panel.
2 Remove the blank panel, if installed, then
lower the module into its slot. Be sure to align
the pins on the PCA with the motherboard
connector in the mainframe.
3 When the pins are aligned, press straight
down to seat the module. Do not force the
module, and do not press on buttons or con-
nectors while seating the module.
Note: If the module does not work after installa-
tion, remove the module. Visually check to make
sure that no connector pins are bent, then rein-
stall the module.
FADER SERVICING
There are no replaceable or rebuildable parts
on the Legacy fader assembly. Fader service is com-
prised of cleaning and lubricating. Faders are con-
ductive 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 as it will
not migrate to the contact fingers like other lubri-
cating oils.
Fader Disassembly and Cleaning
To disassemble and clean faders:
1 Remove the module from the mainframe.
2 Remove the fader knob and the two fader
mounting screws, then remove the fader from
the switch assembly.
3 Remove the snap-on fader assembly cover. It
is held in place by plastic tabs.