Optoma ML750 User Manual download pdf (Page 42)

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Appendices

Troubleshooting

If you experience problems with your projector, see the following troubleshoot-

ing tips. If the problem persists, contact your local reseller or service center.

Problem Possible Solution

No image appears on the

screen

Ensure that the projector is turned on. y

Ensure that you have chosen the correct input source y

on the OSD Source menu.

Ensure the external graphics port is enabled. If images y

are not displayed properly, please upgrade the video

driver of your computer.

Ensure that all the cables are securely connected. y

Ensure that the pins of the connectors are not bent or y

broken.

Partial, scrolling or

incorrectly displayed

image

Press the y Auto Adjust button on the control panel.

If you are using a portable computer, set the resolution of -

the computer to WXGA (1280 x 800).

If you experience difﬁculty in changing resolutions, or y

if your monitor freezes, restart all the equipment and

the projector.

If images are not displayed properly, please upgrade y

the video driver of your computer.

The screen does not dis-

play your presentation

If you are using a portable computer, press y the toggle

output settings. Example: [Fn]+[F4].

Image is unstable or

ickering

Adjust the tracking in the OSD y Display settings of the

Advanced menu (in PC Mode only).

Image has vertical ick-

ering bar

Adjust the frequency in the OSD y Display settings of

the Advanced menu (in PC Mode only).

Image is out of focus

Adjust the focus ring on the projector lens.1.

Ensure that the projection screen is within the required 2.

distance from the projector (3.18 ft [97 cm] to 8.48 ft

[258 cm]).

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Optoma ML750 User Manual Page 42

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