Question about Sharp Notevision PG-B10S Multimedia Projector

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Progressively worse red "ghosting" when showing films....

A strange problem:
* When playing a DVD start to get a red line around the outside of lines on images in the black areas (eg the edge of peoples faces, bodies etc)
* The red lining gets worse during the film, getting thicker and appearing more
* "Tapping" the top of the projector tended to make the problem go away for a time, but then it returned....however, once it became worse (thicker red lines, more red), then no amount of tapping could rectify.
* This problem has occurred before, but seemed to go away (when playing a film some days later). However now it is back again. We often do public screenings so can't afford to be unsure if the projector will come through or not....
* The lamp says it has 85% left, so should be fine. After getting worse, the red "ghosting" appears even on the start up screen (ie it seems not to be related to the connection or a particular film).
....Please help - thanks

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This could be either a connection problem internally or a problem with the red filter convergence. This is not a project to be attempted by an inexperienced person. The convergence adjustments should only be attempted with the proper setup and equipment. If you can solder, carefully open up the unit and look for poor solder joints and resolder them. You can also reseat all of the connectors and cables. If neither of the above ersolve the problem, take it in for service.

Dan

Posted on Aug 14, 2008

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