Troubleshooting Image Problems - Toshiba TDP-TW300U Service Manual

Troubleshooting Image Problems

Upgrade the software to the latest version or reinstall the projector software.
Confirm that all image adjustments are set to factory defaults.
Confirm that the cable and source signal are good.
No image at all.
Vertical or horizontal lines.
Sparkle picture.
Clusters of dark pixels.
The image is not correct.
The projector starts and runs normally.
The menus are accessible.
The lamp is lit.
What is the problem?
Dim image.
No image at all.
Vertical or horizontal lines.
Sparkle picture.
Clusters of dark pixels.
Replace the Main board.
Image good?
No
Replace the optical engine.
6-5
Chapter 6
Bad or missing tint or color.
Missing logo, VGA, composite video, or S-video.
Distorted image, noisy, rolling, torn, frozen,
"Plaid" repeated, or shifted image.
Yes
Problem resolved.