Projector Covers; Air Filters - Hughes JVC 100 Service Manual

Chapter 4---Maintenance (Removal/Replacement)

4.2 Projector Covers

Prior to removing any of the four covers, review the chapter on Safety and adhere
to all warnings and cautions.
To remove the front, top or side covers:
1. Disconnect the projector power plug.
2. The two side covers can be removed independently of any other cover.
They are removed by unscrewing six Phillips-head screws. There are two
small cables connecting the side covers to the top cover. The purpose of
these cables is to hold the side covers and allow them to flip over, out of
the way, for projectors mounted upside down in the ceiling. These cables
can be unclipped when removing covers for floor mounted projectors.
3. The front cover can also be removed without removing any other covers. It
also has two retaining cables. It can be removed by unscrewing three
Phillips-head screws, one on top and one on each side.
NOTE: When the Front Cover is removed, it disengages the Interlock
Switch (see Figure 4-2). To operate the projector with the Front Cover
removed, pull the Interlock Switch out.
4. The top cover can be removed only after all the other covers have been
removed. After the front and side covers have been removed, there are two
additional screws in the center to be removed. After the screws are
removed, Slide the cover forward and lift and the cover will come off.
5. Replace the covers in reverse order.

4.3 Air Filters

There are 2 air filters in the Model 100. They should be checked and cleaned
whenever necessary. Both filters can be easily removed for periodic cleaning by
sliding the filter element out of it's tray. In extremely dusty or dirty conditions, the
4-4
Figure 4-2 Front Cover Interlock Switch.
Model 100 Service Manual