E – 38
Cleaning and Replacing the Filters
Clean the filter covers after every 100 hours of operation (more often in
dusty conditions).
If the filters are dirty or clogged, the rear projection display may over-
heat.
When you replace the lamp, it is also wise to replace the filters.
The filters come in the same package with the NEC replacement lamp
(RT50LP).
Cleaning the filters
To clean the filters:
Vacuum the filter through the filter cover.
CAUTION
* Turn off the main power before cleaning the filter covers.
* Only clean the outside of the filter cover with a vacuum clearner.
* Do not wash the filter cover and filter(sponge) with soap and water.
Soap and water will damage the filter cover and filter membrane.
Replacing the Filters
CAUTION
* Turn off the main power before replacing the filters.
* Before replacing the filters, remove dust and dirt from the cabinet. Keep
out dust and during filter replacement.
* Do not attempt to operate the rear projection display without the filter covers.
* The rear projection display will not operate unless the filter covers are
installed correctly.
There are two filter covers on the rear projection display; one on the left
side and the other on the right side.
These two filter covers are different in shape.
The coars-mesh sponge is for the right side filter cover and the fine-
mesh sponge for the left side filter cover.
Replacement procedures for both sides are the same.
To replace the filter:
1. Loosen the two screws until the screwdriver goes into a
freewheeling condition.
Push up and remove the filter cover.
2. Remove the filter and replace it with the new one.
1) Gently remove the old filter from the filter cover.
2) Gently peel off a double-faced tape on the new filter. Be careful not to
tear off the filter.
3) Place the new filter on the filter cover with the adhesive side down.
3 Reinstall the filter.
1) Place the filter cover into the cabinet, aligning the hook to engage.
2) Tighten the two screws.
Hook
