Question about BenQ PB6100 Multimedia Projector

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BENQ FLAHING Hello, Our church has a 6100 projector that recently started what I call a pulsing. The light dims and brightens at intervals. The machine has about 500 hours and is operated 1-3 hours 3 times a week. Thanks for any help Chuck

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Hi cvijr

This can only one of two things - the lamp or the Ballast ( lamp's powersupply )

Normally the PB6100/6200 lamp's has got markings on the lamp itself when this flickering occurs.

Take out the lamp by unscrewing the lamp door at the bottom. Then look for any vein like looking marks in either black or white. Or even a bubble at the bottom end of the lamp's shaft.

If you can spot anything out of order , then the lamp will need replacement.

If not , then you'll know for sure that it is the Ballast that is in need of either repair or replacement.

Part Numbers :

Ballast :5D.J8612.011

Lamp : 60.J8618.CG1

Hope this is of help and thanks for using Fixya !

Posted on May 06, 2008

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