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Samsung DLP Flickering

I have a 50 inch Samsung DLP TV which I purchased 13 months ago. Recently the brightness started to flicker while I was watching cable or playing PS3. It went away for while when I unplugged my tv for a bit but I still see it coming back.I notice it more on solid or bright colors. I had the bulb replaced and some service done last year but this problem is new. Also, after the tv has been turned off for a while I hear a high pitched whine which goes away when I turn the set on. Any ideas? Samsung said I was out of luck with them.

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  • atremble Apr 16, 2008

    I have the same problem with my HLT5076 I purchased last July. I originally thought it might be dust collecting near where the lamp reflect light and the flickering occurs because of the fan. I've since removed the lamp and found no dust in that area and I've also cleared any dust via vacuum from where the air circulates from outside the cabinet. This issue occurs intermittently and I've noticed it during sat broadcasts as well as HD gaming. It's just a big enough annoyance that I'm this close to calling a service tech... but I'm cheap :).

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If you're certain the lamp is good, it's probably the ballast. The ballast has enough juice to power the lamp, but it's unable to maintain a steady consistent level of power, hence the lamp flickering. Changing the lamp may temporarily resolve it because a new lamp is more easily maintained than an older one, but if the ballast is failing, the problem will recur and probably shorten the life of the lamp. The ballasts cost around $70-80. Replacing it can be done by the electronically adept end user, or you may need a service tech. The problem with a service tech is that some may not acknowledge that the problem is the ballast especially if the intermittent flicker is not happening while he/she is examining it.

Posted on May 28, 2009

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