Question about Samsung HLM507W 50" Rear Projection HDTV

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TV shuts off after 30 seconds.

I replaced the buld three months ago and the TV worked great, until the TV started to shut itself off ~30 seconds 'after' the screen lights up. The indicator lights suggest that the lamp has a fault or is burned out. The lamp has not burned out, so can you suggest what is the problem?

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Check chassis venting, sounds like thermal switch is tripping on top of light box.

Posted on Jun 28, 2009

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Samsung HLM507W will not turn on Alright so here's the deal....I got this TV for free from a guy on craigslist. He said he couldnt get it to turn on. He replaced the lamp, it still didn't work, so he gave up and now I have it. First thing I did was try and turn it on... The TV powered up for about 5 seconds, and then the screen started to flicker all kinds of crazy colors, and it shutdown shortly after with all 3 lights blinking. I figured this probably has to do with the color wheel, so I bought a new one and popped it in. Once installed, the TV started right up, and worked for the entire duration of it being on (approx 7 hours). Now it will not turn on. Here's the startup sequence: -Push power -A couple of audible clicks, and both cooling fans energize. -Lamp does not turn on, and after about 45 seconds of having just the fans running, the TV cycles off and tries to power itself back on. -Rinse and repeat about 3 times total. -After the 3rd attempt, the TV shuts down completely and all 3 lights start blinking in front. -Pushing power does not do anything with the 3 lights blinking. TV must be unplugged and pplugged back in before sequence can be attempted again. Looking for a possible solution/troubleshoot technique. Checked the fuses and they are fine, triple checked all of the connections. Seeing as the lamp doesnt even attempt to energize, Im thinking it could be the ballast, but I'm trying not to dump money into something that might not fix the problem. Thanks for your help!

Jan 21, 2013 | Samsung HLM507W 50" Rear Projection HDTV

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