Hitachi PJ-TX100 Service Manual page 22

6-7 Air filter
• Before replacing the lamp, make sure the power switch is off and the power cord is not plugged in, then
wait at least 45 minutes for the lamp to cool suffi ciently.
• Use only the air fi lter of the specifi ed type. Do not use the projector with the air fi lter and fi lter cover
removed.
• If the air fi lter becomes clogged by dust or the like, internal tempereture rises and the power may be auto-
matically turned off for malfunction prevention.
If the indicators or a message prompts you to clean the air filter, clean the air filter as soon as possible.
Please replace the air filter when you replace the lamp, and also when it is damaged or too soiled.
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. Hold its release buttons while pulling up it.
3. Apply a vacuum cleaner to the filter cover and the air filter.
To replace the air filter,
Contact your dealer to prepare a new air filter.
Tell the dealer your air filter type number:
NJ09452.
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 running, press the MENU button to open the menu.
(2) Choose the "OPTION" on the menu using the ▲/▼ button, then press the ► button or ENTER button.
(3) Choose the "FILTER TIME" using the ▲/▼ button, then press and hold the RESET button for 3 seconds.
(4) Choose the "RESET" using the ▲ button.
NOTE • Incorrectly resetting of the fi lter timer (resetting without replacement, or neglect of resetting after
replacement) will result in incorrect message functions.
PJ-TX100(C11H)
WARNING
CAUTION
22
Filter cover
Release buttons
Air filter
Release buttons