Intermission Problems - Optoma EX774 Serivce Manual

The screen of the Notebook or PowerBook computer is not displaying your
presentation
If you are using a Notebook:

Some Notebooks may deactivate their own screens when a second display device is in use.
Each has a different way to be reactivated. Refer to your computer's manual for detailed
information.
Image is unstable or flickering
Use Phase to correct it.

Change the monitor color setting on your computer.

Image has vertical flickering bar
Use Frequency to make an adjustment.

Check and reconfigure the display mode of your graphic card

to make it compatible with the projector.
Image is out of focus
Make sure the lens cap is removed.
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Adjusts the Focus Ring on the projector lens.
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Make sure the projection screen is between the required distances from the projector.
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The image is stretched when displaying 16:9 DVD title
When you play anamorphic DVD or 16:9 DVD, the projector will show the best image in 16:9
format on projector side. If you play 4:3 format DVD title, please change the format as 4:3 in
projector OSD.If the image is still stretched, you will also need to adjust the aspect ratio by
referring to the following:
Please setup the display format as 16:9 (wide) aspect ratio type on your DVD player.
Image is too small or too large
Adjust the Zoom Ring on the top of the projector.
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Move the projector closer to or further from the screen.
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Press [Menu] button on the remote control or projector panel, go to Display | Format and try

the different settings.
Image has slanted sides
If possible, reposition the projector so that it is centered on the screen and below the bottom

of the screen. Press [Keystone +/-] button until the sides are vertical on the remote control.
Image is reversed
Select Setup | Projection from the OSD and adjust the projection direction.


Intermission Problems

The projector stops responding to all controls
If possible, turn off the projector, then unplug the power cord and wait at least 60 seconds

before reconnecting power.
Lamp burns out or makes a popping sound
When the lamp reaches its end of life, it will burn out and may make a loud popping sound. If

this happens, the projector will not turn on until the lamp module has been replaced.
Company Confidential Optoma_______________________
19
Rev. 00
Delta____________
2008/07/02