Panasonic PT-56DLX25 Service Manual page 11

CLEANING METHODS
THE SCREEN UNIT AND THE MIRROR
- THE SCREEN UNIT (Lenticular Screen, Fresnel Lens)
It is strongly recommended that the Lenticular Screen surface
(outside) and the Fresnel Lens surface (inside) should be
wiped gently with a clean, soft, dry cloth to remove any dirt.
Note:
1. If the dirt cannot be removed by wiping with a clean, soft, dry
cloth, use a clean, soft, dry cloth moistened with diluted
neutral pH liquid cleanser or a lens cleaner (usually
containing a small amount of ethyl alcohol) and wipe lightly.
Take care not to leave any streaks.
Do not use cleaning materials containing methyl alcohol,
acetone, or dichloromethane.
2. Use an air blower to clean the inner surface of the Lenticular
Screen and the outer surface of the Fresnel Lens (between
the two surfaces). These surfaces must not be wiped with
a cloth.
- THE MIRROR
Remove any dirt with an air blower or wipe with a clean, soft,
dry cloth. If wiped too forcefully, the surface of the Mirror can
be damaged. If wiping with a clean, dry cloth does not remove
the dirt, the Mirror must be replaced.
Screen Unit
Lenticular Screen surface
(outside)
Fig. 6-1
THE LAMP
Gently wipe the glass surface of the Lamp with cleaning paper
or soft cloth.
Glass surface
Fig. 6-2
Mirror
Fresnel Lens surface
(inside)
THE PROJECTION LENS
Use lens cleaning paper and cleaner available at your local
camera shop, etc. Dampen the cleaning paper with cleaner
and gently wipe the surface of the lens from the center outward
to remove dust.
THE COLOR WHEEL UNIT
1) Use an air blower to clean the Color Wheel.
2) If any dirt remains, the Color Wheel surface should be
wiped gently with a clean, soft, dry cloth to remove any dirt.
9
PT-56DLX75 / PT-61DLX75
Lens
Fig. 6-3
Color Wheel
Fig. 6-4