Cleaning - Sanyo PDG-DXL2000 Service Manual

Maintenance

Cleaning

After long periods of use, dust and other particles will accumulate on the optical parts, mirror, color wheel, lens etc.,
causing the picture to darken or color to blur. If this occurs, remove dust and other particles using air spray. Before
taking the cleaning, turn off the projector and allow the projector to cool for more than 45 minutes. Never disas-
semble the optical unit, mirror or projection lens because those parts are aligned preciously in the factory . If do so,
the projector may have the miss-alignment in optical and reduce the optical performance.
Cleaning the Color Wheel
- T he color wheel is made of thin glass. Be very careful
when handing the color wheel.
- I n case of fingerprints, etc. on the surface, gently wipe
with a Cleaning Cloth for optical parts that contains a
small amount of non-abrasive camera lens cleaner to
clean the surface.
- D o not use detergents as this could cause peeling of
the color filter.
Cleaning the Projection Window
Unplug the AC power cord before cleaning.
First, remove the dust with a commercially available air blow-
er. Then gently wipe the projection window surface. Use a
cleaning paper moistened with methyl alcohol (methanol).
Avoid using an excessive amount of cleaner.
Do not use abrasive cleaners, solvents, or other harsh
chemical cleaners to avoid damaging the projection win-
dow.
Cleaning the Projector Cabinet
Unplug the AC power cord before cleaning.
Gently wipe the projector body with a soft dry cleaning cloth.
When the cabinet is heavily soiled, use a small amount of
mild detergent and finish with a soft dry cleaning cloth. Avoid
using an excessive amount of cleaner. Abrasive cleaners,
solvents, or other harsh chemicals might scratch the sur-
face of the cabinet.
When the projector is not in use, put the projector in an ap-
propriate carrying case to protect it from dust and scratches.
CAUTION
Do not use any flammable solvents or air sprays on the pro-
jector and in its vicinity. The explosion or fire hazard may
occur even after the AC power cord is unplugged because
the temperature inside the projector is extremely high due to
the lamps. In addition, there is a risk that the internal parts
may be damaged not only by the flammable air spray but
also by the cold air.
Cleaning the reflecting Mirror
- B e careful not to touch the reflecting mirror. Touching
it directly with the hands may cause reducing the bur-
nishing.
- Do not clean other than with air.
Caution:
The optical components may have a crack or spot when
you use the air spray directly to the optical components
while they are in the state of hot. Use a commercial (inert
gas) air spray designed for cleaning camera and com-
puter equipment. Use a resin-based nozzle only. Be very
careful not to damage optical parts with the nozzle tip.
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