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Chapter 5 Maintenance — Maintenance
120 - ENGLISH
Maintenance
Before maintaining the projector
f Make sure to turn off the power before maintaining the projector. (x pages 34, 36)
f When switching off the projector, make sure to follow the procedures in “Switching off the projector” (x page 36).
Maintenance
Outer case
Wipe 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 with a dry cloth.
f Do not use benzene, thinner, or rubbing alcohol, other solvents, or household cleaners. Doing so may deteriorate the outer case.
f When using chemically treated dust cloths, follow the instructions written on its packaging.
Lens front surface
Wipe off dirt and dust from the front surface of the lens with a soft clean cloth.
f Do not use a cloth that is uffy, dusty, or soaked with oil/water.
f Since the lens is fragile, do not use excessive force when wiping the lens.
Attention
f The lens is made of glass. Impacts or excessive force when wiping may scratch its surface. Please handle with care.
Cleaning inside the projector
Ask your dealer about cleaning inside the projector every 20 000 hours of usage as an estimated duration.
f If the projector is used in a dusty place, cleaning may be required before the usage time has reached 20 000 hours.
f If the light source goes off or the brightness reduces noticeably, ask your dealer about replacement of the light source unit.