Panasonic PT-EZ770T

INF-25
SECTION 1 SERVICE INFORMATION
5. 3. 5. Air filter maintenance
Perform maintenance of the air filter in the following case.
• 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.
Attention
• Make sure to turn off the power before performing maintenance on the air filter unit.
• Make sure that the projector is stable, and perform the maintenance in a safe place where the unit will not be damaged even
if you drop the air filter unit.
5. 3. 6. Cleaning procedure for Air filter unit
Airltercover
Airlterxingscrew
Tabs on the projector Airlterunit
Airlterunitcompartmentand
the projector’s air intake port
Fig. 1 Fig. 2 Fig. 3
1) Remove the air filter cover. (Fig. 1)
• Use a Phillips screwdriver to turn the air filter cover fixing screw (x1) counterclockwise until it turns freely, and gently pull
open in the direction of the arrow with your finger placed on the indent of the air filter cover and remove the cover.
• When pulling open the air filter cover, be sure to firmly hold the air filter cover with your hand. Opening the air filter cover
quickly may result in the cover falling.
2) Remove the air filter unit.
• Pull out the air filter unit from the tabs of the projector while slightly pressing the tab at the center of the frame at the con-
nectingterminalside(rearside)inwardasshownbythearrow,andremovetheairfilterunit.(Fig.2)
• After pulling out the air filter unit, remove foreign objects and dust from the air filter unit compartment and the projector’s
airintakeportifthereareany.(Fig.3)
Fig. 4 Fig. 5
3) Wash the air filter unit. (Fig. 4)
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.
 ii)Rinsetheairfilterunittwotothreetimesusingfreshwatereachtime.
• Insufficient rinsing may result in odors.
4) Dry the air filter unit. (Fig. 5)
• Let the air filter unit naturally dry off in a well-ventilated place where there is little dust and is not exposed to direct sun-
light.
• Do not dry using drying devices such as dryers.
• After the air filter unit is dried, proceed to “Attaching the air filter unit”.
5) Attach the air filter unit to the projector.
• Perform Step 2) in the reverse order.
• Push in the air filter unit securely until it clicks into place.
6) Attach the air filter cover.
• Perform Step 1) in the reverse order to close the air filter cover, and push in the air filter cover securely until it clicks
into place.
• Use a Phillips screwdriver to firmly tighten the air filter cover fixing screw (x1).