Question about Projection Televisions

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I have a Samsung HLN467WX DLP 46" TV. It had the Light Engine assy replaced in March 05 through warranty, but now it has stopped working. When you turn it on, the picture is fine for about 2-3 minutes then the picture becomes bright and fuzzy before it goes black. The sound continues for a few seconds longer and then also turns off. The fans in the back continue but doesn't timeout and the tv does not respond to remote or power button. I have to unplug the unit to really switch it off. If I try to switch it on immediately afterwards, I get no picture or sound. If I wait a while (about 5 mins) and turn back on, I will get the picture for 2-3 minutes again. Could it be 1) Lamp and/or ballast - (the picture does seem a little dim) and the service menu said th lamp had over 10,000 hours ... not sure if that is really correct 2) Color Wheel - there is a little high pitch noise coming from the color wheel but otherwise looks fine 3) Digital Board - from other posts were talking about problems with HLN models Samsung ECR just said it was out of warranty and wont do anything else to help Any ideas would be appreciated?

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I suggest going to the following link. they will have the service manual for your model available by email after purchase and they offer free tech support to help you with the diagnosis and repair of your DLP heres the link in case you want it.
http://servicemanuals.vstore.ca/

Posted on Apr 25, 2008

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