Panasonic PT-RZ475EA, Руководство по эксплуатации

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Chapter 5 Maintenance — Maintenance
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Maintenance
Before maintaining the projector
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Make sure to turn off the power before maintaining the projector. (
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pages 35, 38)
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When switching off the projector, make sure to follow the procedures in “Switching off the projector” (
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page 38).
Maintenance
Outer case
Wipe off dirt and dust with a soft, dry cloth.
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If the dirt is persistent, soak the cloth with water and wring it thoroughly before wiping. Dry off the projector with a dry cloth.
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Do not use benzene, thinner, or rubbing alcohol, other solvents, or household cleaners. Doing so may deteriorate the outer case.
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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.
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Do not use a cloth that is fluffy, dusty, or soaked with oil/water.
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Since the lens is fragile, do not use excessive force when wiping the lens.
Attention
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The lens is made of glass. Impacts or excessive force when wiping may scratch its surface. Please handle with care.
Cleaning inside the projector
Depending on the environment or use conditions such as use in a dusty place, dust accumulated around the intake and exhaust ports will
degrade the circulation of ventilation, cooling and exhaust heat, and brightness may decrease as a result.
If the brightness reduces noticeably or the light source goes off, clean inside the projector or ask your dealer about replacement of the light
source unit.