Question about Hitachi CP-X960 Multimedia Projector

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Brightness Pulsing Hi, I just replaced the bulb, and now we notice that the brightness seems to pulse slightly during operation, sometimes more dramatic than others. I have left it on over a period of about 3 hours to see if it would become more noticeable due to the lamp heating up, but doesn't seem to worsen. I would hate to think it's the bulb, since I just replaced it. Any suggestions would be helpful.

Posted by Grego624 on

  • Anonymous May 11, 2010

    The original lamp, did it last it's "full" lifespan, or come to a sudden demise.?



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Reply posted in the other thread =)

Posted on Apr 14, 2008


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1 Answer

Brightness Varying during operation

Inside all projectors is a lamp ballast that runs the lamp. It could be in the early process of failing.
This website will explain the whole ballast thing clearly. It is important that if your ballast is failing, then you get it replaced or you maybe infor another very expensive light bulb very soon.

Hope that makes your issue somewhat clearer (pardon the punn)

Apr 14, 2008 | Hitachi CP-X960 Multimedia Projector

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