Question about Sony KP-53HS10 TV

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Flashing picture screen on Sony KP_53HS10

This TV and is 7 years old, initially the picture flashed on and off while the audio stayed on continuously. If I unplugged the power and let the tv sit for a few minutes the picture would stay on as normal for about 2 to 5 minutes. Over the past few months the picture flashes on and off every 2 seconds.

I am not sure if it is a service problem if it would be economical to repair. Any suggestions would be appreciated.

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Tap around on the circuit boards in the rear of the television. narrowed it down to the Comb Filter circuit board. It is the smallest upright circuit board behind where you plug in all your connectors. pulled it out cleaned it off, reinserted it

Posted on Jan 23, 2008


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Posted on Jan 02, 2017

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Hey Shannonbmomt I had the same problem with my KP-53HS10 and I had to replace the High Voltage Transistor IRFI640LFcost me about $20usd with shipping from

I also found that I had a bad flyback transformer which from what I have read online is also a common problem if the high voltage transistor goes out. So I replaced the flyback as well for another $18 from part SONY FLYBACK 1-453-285-11

Soldered both pieces in and tv is good as new

Email or post with any further questions and ill see if i can help.


Posted on Mar 01, 2009

  • 6 Answers

SOURCE: I have a Sony KP-53HS10

Hey n8aun7 check out the solution I posted at

I had to replace the flyback transformer and the HV Transistor on the D board, cost $38usd total and good as new.

Posted on Mar 01, 2009

  • 6 Answers

SOURCE: KP-53HS10 blinking light

Ok I solved my own problem and posted the results here,


Posted on Mar 01, 2009

  • 418 Answers

SOURCE: flash focus wont realign the pic on my kp-53hs10

Probable convergence amp IC bad.

Posted on Apr 18, 2010

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