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■ Maintenance and Cleaning
After long periods of use, dust and other particles will accumulate on the LCD panel, prism, mirror, polarized glass,
lens, etc., causing the picture to darken or color to blur. If this occurs, clean the inside of optical unit.
Remove dust and other particles using air spray. If dirt cannot be removed by air spray, disassemble and clean the
optical unit.
● Cleaning with air spray
1. Remove the cabinet top following to "Mechanical Disassemblies".
2. Clean up the LCD panel and polarized glass by using the air spray from the cabinet top opening.
Caution:
Use a commercial (inert gas) air spray designed for cleaning camera and computer equipment. Use a resin-based noz-
zle only. Be vary careful not to damage optical parts with the nozzle tip. Never use any kind of cleanser on the unit. Also,
never use abrasive materials on the unit as this may cause irreparable damage.
● Disassembly Cleaning
Disassembly cleaning method should only be performed when the unit is considerable dirty and cannot be sufficient-
ly cleaned by air spraying alone.
Be sure to readjust the optical system after performing disassembly cleaning.
1. Remove the cabinet top and main units following to "Mechanical Disassemblies".
2. Remove the optical base top following to"Optical Unit Disassemblies". If the LCD panel needs cleaning, remove the
LCD panel unit following to "LCD panel/Prism ass'y replacement".
3. Clean the optical parts with a soft cloth. Clean extremely dirty areas using a cloth moistened with alcohol.
Caution:
The surface of the optical components consists of multiple dielectric layers with varying degrees of refraction.
Never use organic solvents (thinner, etc.) or any kind of cleanser on these components.
Since the LCD panel is equipped with an electronic circuit, never use any liquids (water, etc.) to clean the unit. Use of
liquid may cause the unit to malfunction.
Cleaning the Projection Lens
Unplug the AC power cord before cleaning.
Gently wipe the projection lens with a cleaning cloth that contains
a small amount of non-abrasive camera lens cleaner, or use a
lens cleaning paper or a commercially available air blower to clean
the lens. Avoid using an excessive amount of cleaner. Abrasive
cleaners, solvents, or other harsh chemicals might scratch the
surface of the lens.
Cleaning the Projector Cabinet
Unplug the AC power cord before cleaning.
Gently wipe the projector body with a dry soft cloth. When the
cabinet is heavily soiled, apply a small amount of mild detergent
and finish with a dry soft cloth. Avoid using an excessive amount
of cleaner. Abrasive cleaners, solvents, or other harsh chemicals
might scratch the surface of the cabinet.
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