Troubleshooting; Understanding The Warning Lamp Flash Patterns - Canon SX20 User Manual

TROUBLESHOOTING

Understanding the Warning Lamp
Flash Patterns
When an internal problem occurs, the WARNING lamp on the Control Panel flashes red.
When dealing with the problem, turn off the projector, wait until the cooling fan
stops, remove the power plug from the AC outlet.
Flash Pattern Meaning
One flash Abnormal
temperature
Two flashes Faulty lamp
Three flashes Faulty lamp
cover
Four flashes Faulty
cooling fan
Five flashes Faulty power
supply
Countermeasure
The temperature inside the projector is too high for
some reason or the outside air temperature is higher
than the specified one.
If the problem is inside the projector, check whether
the projector is installed and operated normally, turn
off the projector to cool its inside, and retry projection.
If the same warning occurs again, the projector may
be defective. Contact your dealer.
The lamp has burnt out. Replace the lamp with a new
one. If the same warning occurs again, the lamp drive
circuit may be defective. Contact your dealer.
The lamp cover is open. Check whether the lamp
cover is installed properly. If it is installed properly, the
lamp cover detection switch may be defective. Contact
your dealer.
The cooling fan or another component may be
defective. Contact your dealer.
The voltage of part of the power supply is abnormally
high or any other problem has occurred in the power
supply. Contact your dealer.
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