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ViewSonic PJ1172 37
Air Filter
Caring For The Air Filter
The air filter should be cleaned about every 100 hours. If the indicators or a message
prompts you to clean the air filter, clean the air filter as soon as possible. If the soiling will
not come off the air filter, or it becomes damaged, then it needs to be replaced. Please
replace the air filter as soon as possible.
memo When you replace the lamp, please replace also the air filter.
1 Turn off the projector, and unplug the power cord. Allow the lamp bulb to cool for at least
45 minutes.
2 After making sure that the projector has
cooled adequately, remove the filter cover
and the air filter.
3 Apply a vacuum cleaner to the filter cover and
the air filter to clean.
If the soiling will not come off the air filter, or it
becomes damaged, it needs to be replaced.
If the air filter needs to be replaced, contact
your dealer to prepare a new air filter. Tell the
dealer your air filter type.
4 Insert the cleaned air filter or a new air filter
and replace the filter cover.
5 Turn on the projector power and reset the
filter timer.
(1) While the projector is running, press the
MENU button to open the menu.
(2) Choose the “OPTION” on the menu using
the S/T button, then press the X button
or ENTER button.
(3) Choose the “FILTER TIME” using the S/
T button, then press and hold the RESET button for 3 seconds.
(4) Choose the “RESET” using the S button.
memo Incorrectly resetting the filter timer (resetting without replacement, or neglect of
resetting after replacement) will result in incorrect message functions.
WARNING
• Please carefully read the “Quick Start Guide”.
• Before caring the air filter, make sure the power switch is off and the power cable is not
plugged in, then to replacing wait at least 45 minutes for the lamp to cool sufficiently.
• Use only the air filter of the specified type. Please call ViewSonic Tech Support for P/N.
• Do not use the projector with the air filter and filter cover removed. The use without the
air filter could result in damage.
CAUTION
• If the air filter becomes clogged by dust or the like, internal temperature rises and could
cause malfunction. The power is automatically turned off in order to prevent the
projector from overheating internally.
Hold the release but-
tons of the filter cover
while pulling it down.
Hold the release but-
ton of the air filter
while pulling it out.