Question about Sony KV-27S22 27" TV

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Television won't come on after power surge from lightning storm

We had a bad thunderstorm and power surge .Now our tv won't come on? Is it repairable ?

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Plz contect me we repair lcd plasma and projection tvs
Yogesh-9811440932

Posted on Jul 29, 2009

  • rajsainiraje
    rajsainiraje Jul 29, 2009

    plz contect me we repair lcd plasma and projection tvs

    Yogesh-9811440932

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My Sony KDL-46V3000 television HDMI ports no longer worked following a thunderstorm, and a factory/power reset did not fix the problem. Do you know what board I need to replace (GF1,DF2,DF3)?


A nearby electrical storm can cause a voltage surge in the mains electrical supply or a very close storm could send a discharge along the antenna downlead and either way the ultra-sensitive CMOS logic chips are likely to be damaged. Such chips are likely to be found throughout a modern tv.

These days a tv is less a television and more computer and should always be used with a surge protector though these cannot provide full protection.

I suggest you entrust diagnosis to an experienced engineer in order to reduce the frustration and expense to a minimum.

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Did you have a power surge after a loss of power? If so your TV is ruined from the surge. In the future use a surge protector if don't already.

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Hi,
please call a specialist in that for assistance.
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But, was the cable/satellite feed protected? Lightning can come in from anywhere, not just the power line. The bad thing about the way cable and satellite installers ground things is, they ground to the same grounding system that the house does, which can backfeed the surge through the entire house - it shouldn't, but it can.

I would, however, contact the maker of the surge strip and attempt to file a damage claim. They all come with a liability warranty of some sort.

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You will need to replace the convergence chips located inside the set. Typically a repair shop will charge 150-250 to fix it. Good luck

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Someone please help


Good Day;

Two things normally happens after a L storm:1.) One must unplug TV for 5 minutes, then plug back in. 2.) Main glass fuse out, will be near a/c cord. 3.( Power regulator IC may be out. Try these first.

Good Luck!

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If you have homeowners insurance and can file a claim on it, perhaps your insurance adjuster knows of a shop that could handle this problem. Most likely you will be needing the power board replaced, p/n 8667200700T unless it can be repaired. The schematic for this set is not listed as an available part for this set (In the future it would be very wise to stay away from any manufacturer that does not support what they make). After restoring power to the set, you could find that there are other problems such as a defective tuner or audio/video problems due to the power surge. It may be possible to fix the power supply without a schematic if that is the only part that has been damaged.

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