Chapter 6 Maintenance — Maintenance/replacement198 - ENGLISHMaintenance/replacementBefore performing maintenance/replacementf Make sure to turn off the projector and disconnect the power plug from the outlet before maintaining or replacingthe unit. (x pages 57, 65)f When switching off the projector, make sure to follow the procedures in “Switching off the projector”(x page 65).MaintenanceOuter caseWipe off dirt and dust with a soft, dry cloth.f If the dirt is persistent, soak the cloth with water and wring it thoroughly before wiping. Dry off the projector witha dry cloth.f Do not use benzene, thinner, or rubbing alcohol, other solvents, or household cleaners. Doing so maydeteriorate the outer case.f When using chemically treated dust cloths, follow the instructions written on its packaging.Lens front surfaceWipe off dirt and dust from the front surface of the lens with a soft clean cloth.f Do not use a cloth that is fluffy, dusty, or soaked with oil/water.f Since the lens is fragile, do not use excessive force when wiping the lens.Attentionf The lens is made of glass. Impacts or excessive force when wiping may scratch its surface. Handle with care.Air filter unitPerform maintenance of the air filter unit in the following case.f The air filter is clogged with dust, causing the filter replacement message to appear on the screen and the filterindicator to light in red.Attentionf Make sure to secure the stability of the projector, and perform the maintenance in a safe location even if the air filter cover or the air filterunit falls accidentally.f When the air filter unit is replaced, reset the filter counter.If the filter counter is not reset after replacing the air filter unit, [FILTER COUNTER has reached the set time.] is displayed.For details of resetting the filter counter, refer to “Resetting the filter counter” (x page 200).Removing the air filter unitTabs on the projector bodyFig. 1 Fig. 2Air filter coverAir filter unitGripAir filter unit compartment and theprojector’s air intake portAir filter cover fixing screw1) Turn off the power of the projector.f Always follow the procedure of “Switching off the projector” (x page 65) when turning off the power.
