Installing And Cleaning The Air Filter - NEC U321H User Manual

A proper

maintenance
will prevent
overheating
and projector
malfunction.
The specific

interfaces are
selected in terms of
the specifications of
types.
Make sure to

power off the
projector before
cleaning the filters.
After cleaning the

filters, securely
install the filters.
When the filters are

removed, do not
put your fingers
into the openings
on the projector.
Filter Replacing Procedure:
1. Switch off the power to the projector by pressing the POWER OFF button on the
remote control or the
2. Disconnect the power cord.
3. Pull out the filters, as shown in the illustration. 
4. Carefully remove the filters. Then clean or replace the filters. 
To install the filters, reverse the previous steps.
5. Turn on the projector and reset the filter usage counter after the filters are
replaced.

Installing and Cleaning the Air Filter

We recommend you clean the air filter every 500 hours of
operation, or more often if you are using the projector in a
dusty environment.
When the warning message appears on the screen, do the
following to clean the air filter:
WARNING! FILTER
PLEASE CLEAN THE FILTER.
1
2
button on the control panel.
Appendices
1
2
55 ... English