
Troubleshooting
(Continued)
Symptom
Probable Cause
Corrective Action
Page
Remote control unit
• Are batteries installed correctly?
• Match the polarities of batteries
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does not work
correctly (+ to + and – to –)
• Are batteries exhausted?
• Replace with new batteries.
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• Is there a shielding object between the
• Remove any shielding objects.
remote control unit and the remote
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sensor.
• Is the distance too long?
• Use the remote control unit at
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a nearer point.
* This projector is equipped with a microcomputer that may operate abnormally due to
interference from external components. If this happens, turn off the main power and dis-
connect the power cord from the wall AC outlet. Then reconnect the power cord to AC outlet
and turn on the main power again. (For the turning on and off the power, see
pages 25 and 27.)
Maintenance
Cleaning the projector enclosure
The enclosure should be cleaned with a soft cloth. If the enclosure is heavily stained, wipe
it with a cloth soaked in water-diluted neutral detergent and wrung well, then wipe clean
with a soft, dry cloth.
CAUTION
• Do not wipe enclosure with a hard cloth.
• Do not wipe it hard.
• Do not wipe it with thinner, benzene or alcohol.
• Do not apply any volatile substance to it.
• Do not allow any rubber or vinyl article to remain in contact with it for a long time.
Stains on the lens
• Should be cleaned off with commercially available blowers or lens cleaning paper (for
cleaning glasses and cameras).
• Do not use liquid cleaning agents. This could cause the surface coating to be removed.
• Do not rub or hit the lens as its surface is prone to damage.
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