User guide

53
Troubleshooting
Operational problems
There is no power
Is the power cord disconnected?
Insert the power cord (plug) properly.
Is the main power supply switch turned on?
Turn on the main power supply switch of the projector
unit.
Is the lamp in the cool down mode?
Turn on the power again after the cool down mode
ends.
Is the lamp protection function triggered? (This function
is triggered when the power shuts down such as during
power failures.)
Wait till the temperature of the lamp has gone down.
(Turn on the main power supply switch to run the fan
and cool down the lamp.) Turn on the power after
about 3 minutes.
Projector works when the power is
turned on, but stops abruptly after a
few minutes
Are the air inlets and vent holes blocked?
Turn off the main power supply switch, and remove
the blockage. After removing, turn on the power
again.
Is the temperature of the room high?
Set the temperature of the room or the surrounding
temperature of this projector to an appropriate level.
Are the filters dirty?
Clean the filters; see Cleaning and replacing the
filters , page 48.
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The remote control does not change
the image settings
Check that the RS232 projector control connection
has been made between the Scaler and Projector.
Check that the Information menu on the OSD
Setup contains valid data. If the RS232 cable
between the Scaler and Projector is not connected
correctly the Information menu will display
Unavailable on items that require a response from
the Projector.
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