Appendices; Troubleshooting - Optoma TH7500 User Manual

Appendices

52
English

Troubleshooting

If you experience a problem with your projector,
please refer to the following information. If a
problem persists, please contact your local
reseller or service center.
No image appears on-screen
Ensure all the cables and power connections are correctly and

securely connected as described in the "Installation" section.
Ensure all the pins of connectors are not bent or broken.

Check if the projection lamp has been securely installed. Please

refer to the "Replacing the lamp" section.
Make sure you have removed the lens cap and the projector is

switched on.
Ensure that the "AV Mute" feature is not turned on.

Partial, scrolling or incorrectly displayed image
Press "Re-SYNC" on the remote control or control panel.

If you are using a PC:

For Windows 95, 98, 2000, XP, Windows 7:
1. Open the "My Computer" icon, the "Control Panel" folder, and
then double click on the "Display" icon.
2. Select the "Settings" tab.
3. Verify that your display resolution setting is lower than or equal
to WUXGA (1920 × 1200).
4. Click on the "Advanced Properties" button.
If the projector is still not projecting the whole image, you will also
need to change the monitor display you are using. Refer to the
following steps.
5. Verify the resolution setting is lower than or equal to WUXGA
(1920 × 1200).
6. Select the "Change" button under the "Monitor" tab.