Question about Sylvania 6842THG 42 in. Plasma HDTV

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There was a power surge and a loud pop and now the tv will not power on. The red standby light is lit, but when I try to turn on the tv, the green power light flashes twice and then goes back to the red standby light. It is a Sylvania 6842THG

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  • awpful Jun 29, 2009

    Thanks. That was what I was afraid of.

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  • Master
  • 1,056 Answers

A job for the technician on this one. I have only worked on several flat screen before, on my last days as an electronic technicians. Half of the ones I worked on was the power supply inside ir the problem was like this. Instruction on how to fix them would require me to write many pages on electronic theory so, I am very sorry It is almost impossible for me to help you on that. Be carefull where you take that tv to. some shop can't fix those. You may have to search your local area for someone who specialize in flat sreen HDTV. Well I hope I have shed a little light on the problem. Thanx for posting the problem.

Posted on Jun 29, 2009

  • Ronado Panaligan
    Ronado Panaligan Jun 29, 2009

    If you do take it to a shop, make sure to agree on the price before you let them work on it. To be honest with you. The fee you pay to look at it is actually the diagnostic, which can take up to days or even weeks on difficult problems. By the time they tell you whats wrong with the TV, practically they already did all the hard work. LOL This is one reason they charge for that. Try to negotiate with the price, and if you did it in a nice friendly way they usually will cut you a break. If they gave you a price right away, maybe they experience the same problem before they already know the problem without looking at it. This is a good thing because they would really want to get you as a customer. Sometmes they give you an outrageous price right away because they know it is going to be difficult for them to fix. That is a bad sign. Lastly always have a written warranty, because sometimes they fix the problem, but never fixed what caused it. That makes the problem comeback after short time. Well good luck. Another alternative is you learning electronic theory, and then learning how flat screen works, and how to fix them. This would take a very long time, and unless you like learning electronics, which require a bit of a talent, but you don't have to be a genius. LOL

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