Maintenance, AIR Filter Care and Cleaning

APPENDIX

MAINTENANCE

WARNING TEMP. INDICATOR

WARNING TEMP. Indicator flashes red when an internal temperature of a projector exceeds normal temperature. This Indicator stops flashing when temperature of a projector returns to normal.

When WARNING TEMP. Indicator continues to flash, check items listed below.

	1	Ventilation Slots of a projector may be blocked. In such an event, reposition a projector so that Ventilation Slots are
	1	not obstructed.
	2	Air Filter may be clogged with dust particles. Clean Air Filter by following section AIR FILTER CARE AND CLEANING
	2	below.
	3	If WARNING TEMP. Indicator remains on after performing above checks, Cooling Fans or Internal Circuits may be
E	3
E		malfunctioning. Contact service personnel from an authorized dealer or a service station.

AIR FILTER CARE AND CLEANING

Air Filter prevents dust from accumulating on surface of Projection Lens and Projection Mirror. Should Air Filter become clogged with dust particles, it will reduce Cooling Fans’ effectiveness and may result in internal heat build up and adversely affect life of a projector. Clean Air Filter following steps below:

1	Turn off a projector, and disconnect AC power cord from AC
1	outlet.
2	Turn a projector upside down and remove Air Filter (2 used) by
2	pulling latches upward.
3	Clean Air Filter with a brush or wash out dust and particles.
4	inserted.Replace Air Filter properly. Make sure that Air Filter is fully

CAUTION

Do not operate a projector with Air Filter removed. Dust may accumulate on LCD Panel and Projection Mirror degrading picture quality.

Do not put small parts into Air Intake Vents. It may result in malfunction of a projector.

AIR FILTER

Pull up and remove.

RECOMMENDATION

We recommend avoiding dusty/smoky environments when operating a projector. Usage in these environments may cause poor image quality.

When using under dusty or smoky conditions, dust may accumulate on a lens, liquid crystal panels, or optical elements inside a projector. This condition may degrade quality of a projected image.

When above symptoms are noticed, contact your authorized dealer or service station for proper cleaning.

CLEANING PROJECTION LENS

Follow these steps to clean Projection Lens:

1	Apply a non-abrasive camera lens cleaner to a soft, dry cleaning cloth. Avoid using an excessive amount of cleaner.
	Abrasive cleaners, solvents or other harsh chemicals might scratch a surface.

Lightly wipe a cleaning cloth over Projection Lens.

When a projector is not in use, replace Lens Cover.

9290 specifications

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