Optoma PT105 User's Manual - Page 13
Troubleshooting, Projector
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TROUBLESHOOTING YOUR PROJECTOR If you experience problems with your projector, see the following troubleshooting tips. Problem No image appears on the screen Possible Solution Ensure that the external graphics port is enabled if you are using a portable computer. Ensure that all the cables are securely connected. See on page 5. Ensure that the pins of the connectors are not bent or broken. Partial, scrolling, or incorrectly displayed image Image is out of focus The image is stretched Projector stops Fan stops then projector stops Right-click the unused portion of your Windows desktop, click Properties and then select Settings tab. Verify the setting is 640 x 480, or 800 x 600, or 1024 x 768 pixels for the external monitor port. If you experience difficulty in changing resolution or your monitor freezes, restart all the equipments and the projector. If problem persists, upgrade your computer graphic card driver (video driver) to its latest version and test again with projector. Adjust the Focus Ring on the projector lens. Ensure that the projection screen is within the requited distance from the projector (24" [60 cm] to 144" [366 cm]). Please adjust Image Size Menu setting to correct aspect ratio for the source video being displayed • The projector has overheated. Turn the display on again after the projector cools down. If the problem persists, contact customer service. A projector fan has failed and the projector will automatically shut down. If the problem persists, contact customer service. EN-12