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ATTENTION:
• Make sure that the screws are screwed in firmly. Loose screws could result in damage or injury.
• Do not use with lamp cover removed.
• Do not reset the lamp timer without replacing the lamp.
NOTE:
The LAMP indicator is also red when the lamp unit reaches high temperature.
Before replacing the lamp, switch power OFF, wait approximately 20 minutes, and switch power ON again. If
the LAMP indicator is still red, replace the lamp.
Caring for the Air Filter
The air filter should be cleaned about every 100 hours. Clean the filter if the LAMP indicator and TEMP
indicator blink red simultaneously, or if a message prompts you to clean the air filter when you turn on the
unit, the filter needs to be cleaned. (Refer to “On-Screen Messages” in the Trouble-shooting section.)
1
Turn off the projector, then unplug the power cord
2
To clean a reusable filter, carefully vacuum both sides of the filter area.
3
If the filter is damaged and needs to be replaced, contact your dealer or ViewSonic Corp. Replace the old
filter then put the grill back in place.
4
To reset the Filter Timer, turn on the projector power, go to the Option menu then select filter timer. Reset
the filter timer.
CAUTION:
• Switch power OFF and remove the power cord from the power outlet before beginning maintenance work.
• Replace the air filter if contamination cannot be removed or if it is damaged.
• Do not use the equipment with the air filter removed.
• When the air filter becomes clogged with dust etc., the power supply may switch OFF automatically to
prevent the temperature from rising inside the projector.
• Make sure the lens is cool before cleaning.
• Do not use detergents or solvents such as benzene or thinners.
• Do not use chemical sprays.
• Use a soft cloth or lens paper only.
Air Filter Cover
ViewSonic PJ650/PJ520 33