Appendix; Troubleshooting - Optoma EX536 User Manual

Troubleshooting

Check the following before calling your dealer or service center:
Troubleshooting
Power on failure
Logo screen display
failure
The Logo screen differs
from the standard
settings.
Input signal switch (or do
not switch) automatically.
Press INPUT button
during power on and
a non-input mode icon
displays.
A non-input or lamp mode
icon displays.
Image looks fuzzy
Image turns upside down
Image looks dim
Solution
– Plug the power cord of your projector in an AC socket.
– Make sure the POWER light indicator turns red.
– Restart your projector until the POWER light indicator turns red. It
indicates your projector is ready for power on again.
– Check the lamp.
– Disable the Key Lock function of your projector.
– Make sure the Off and Countdown Off is selected in the Display
function.
– Make sure you did not select User or Off in the Logo Screen.
– Make sure you have correctly set up the Input Search function.
– Adjust focus of your projector.
– Provide proper projection distance.
– The projection lens requires cleaning.
– Moving your projector from a colder environment to a hotter one
may result in condensing on the lens. If this is the case, wait
until the condensing water evaporated before powering on your
projector.
– Check the Ceiling and Rear settings.
– Check the Ceiling settings.
– Check for contrast and brightness settings.
– Check for correct image mode settings
– Check for lamp brightness settings.
– Check for lamp replacement alert. The lamp replacement alert
suggests the lamp is reaching the end of its life cycle.
Please replace it with a new one of the same model immediately.
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Appendix