Panasonic PT-DZ770E Operating Guide
Maintenance/replacement
104 - ENGLISH
Maintenance
Maintenance/replacement
Before maintaining/replacing the unit
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Make sure to turn off the power before maintaining or replacing the unit. (
pages 35, 38)
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When switching off the projector, make sure to follow the procedures in “Switching off the projector” (
page 38).
Maintenance
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■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.
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■Front surface of the lens
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.
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■Air filter unit
Perform maintenance of the air filter unit in the following cases.
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The air filter is clogged with dust, causing the filter replacement message to appear on the screen and the
filter indicator <FILTER> to light in red.
1) Remove the air filter cover.
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Use a Phillips screwdriver to turn the air filter
cover screw counterclockwise until it turns
freely, and then remove the air filter cover.
Air filter cover fixing screw
Air filter cover
2) Pull out the air filter unit.
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Grasp the air filter unit tabs and remove the air
filter unit from the projector body.
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Air filter unit
Tabs
3) Clean and dry the air filter unit.
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Cleaning the air filter unit
(i) Soak the air filter unit in cold or warm water
and then lightly rinse it.
•▶Do not use cleaning tools such as brushes.
•▶When rinsing, hold the frame of the air filter
unit without putting strong pressure on the
filter unit.
(ii) Rinse the unit two to three times using fresh
water each time.
•▶Insufficient rinsing may result in odors.
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Drying the air filter unit
• Let the unit naturally dry off in a well-
ventilated place where there is little
dust and the unit is protected from
direct sunlight.
• Do not dry using drying
devices such as
dryers.