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TV Pops & turns off

I have a ProScan TV, Model PS27151 that was purchased in 1992. It has recently started to make a pop sound & the TV turns off.

Sometimes it stays off & I cannot turn it back on with the remote. Sometimes I can turn it on at the TV but other times only unplugging & plugging it back in will turn it on.

The first time this happened, about 2 weeks ago, unplugging it fixed the problem for over 1 week but then it happened again. Today, after it turned off, it immediately turned on again for a few minutes then off again, on again several times. The final pop off was followed by a second pop & then it was off until I unplugged it & plugged it in again.

I called RCA support but they were not able to help me. They suggested a service center that is out of business. While searching for a service center, I found your website. Do you have any ideas? Does this TV have tubes?

Thanks. Flo

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There are no tubes; generally the pop happens because of high voltage. It is being shorted out and the pop is either the flyback transformer or the horizontal transistor oscillator. these two are reponsible for creating the high voltage cycle for your television; when either of them or their circuitry is shorted out you hear that "pop" which is the emergency cut off circuitry coming into play to protect the rest of the television.

Posted on May 17, 2008

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