Question about Sony KV-27V22 TV

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TV keeps turning on and off by itself.

34 in Sony Trinition television keep turning on and off by itself

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Fault in the main power supply regulator board. Check and replace damaged component/s at its main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts.
http://electronicshelponline.blogspot.com/

Posted on May 01, 2015

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Posted on Jan 02, 2017

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SOURCE: Sony FD Trinitron KD-34XBR960 34" TV

Our set turns itself off by itself. Prior to this happening, it goes to a green screen. It usually happens after the set has been on for a couple of hours. We bought the set in April, 2004 and the warrantly has now expired. The longer we keep the set on, the more it turns itself off. Is this a tuner, on/off problem or the tube? Any estimates for repair?

Posted on Oct 27, 2008

  • 6771 Answers

SOURCE: We were given a Sony

There are a few capacitors that open up causing the set to shutdown, I recommending a tv tech to check it out with a estimate.

Posted on Dec 31, 2010

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Sony kv-34hs420


How many times do this light flashes. Count it. These blinks are fault indications. From these number of blinks, you can get an idea about the faulty circuit section inside. It will make troubleshooting more narrower. If you wish to get more details about the blinking codes to Sony TVs, check this link. Pull up older posts there.

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This sounds like the flyback on the main circut board needs replaced (part is in 70.00 range!

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Our set turns itself off by itself. Prior to this happening, it goes to a green screen. It usually happens after the set has been on for a couple of hours. We bought the set in April, 2004 and the warrantly has now expired. The longer we keep the set on, the more it turns itself off. Is this a tuner, on/off problem or the tube? Any estimates for repair?

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Sony FD Trinitron WEGA KV-34HS420 34" TV Problem:


HEY MASH-1ST ANY MAGNETS/SPEAKES OR MOTORS NEAR SET CAN CAUSE A CHANGE IN THE PIX TUBES PURITY FIELD WHICH IS WHAT YOU SAW. MAKE SURE ANYTHING LIKE THAT IS NOT PRESENT, THEN IF SET KEEPS ACTING UP YOU'LL NEED A DEGAUSSING CIRCUIT REPAIR, BEST DONE BY A QUALIFIED TV TECH.JOE TV

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