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How do i fix a sony trinitron kv-27526 tv with no picture?

Tv was presented to with saying their was half a picture on top or streaks, but when I plugged it in it has no picture, I plugged a coax cable from a vcr, has sound no pic, I plugged in yellow video cable no pic. please advise. Warmest Regards Andy

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  • Andy Mendez
    Andy Mendez Dec 02, 2014

    THanks for the answer.. I have an update, I tried a factory reset by holding the up arrow on the remote then pressing and rreleasing the power button on the tv. the picture came back for about 15 seconds then the bottom half went black and the top half had lines through it for about 5 seconds then went completely black again.

  • Andy Mendez
    Andy Mendez Dec 02, 2014

    Ok now I knudge the chassis on the side and i get the pic coming back, sometimesa 1/4 ways with streaks, sometimes 1/2 or all the way but briefly, I'm thingincold solder joint? or faulty or loose component? any idea where I should start my search now?

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  • Sony Master
  • 74,666 Answers

Check and replace damaged component/s at its horizontal scan output section circuit. Check the LOT (Line Output Transformer) too for damage. Replace the horizontal scan output transistor. Check the input voltage to LOT. If the voltage is absent check the feeder resistor; if any. 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 Dec 02, 2014

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Posted on Oct 16, 2006

techman
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SOURCE: Sony TV - Loss of half the picture

sarge, it sounds like the vertical output IC went bad on you. If it was a bad connection or a bad capacitor, your picture would have been a straght line across the screen. They call the output section of the IC a push-pull type of amp, so the top half of the sweep IC went out. If you have had some soldering experience, and or experience with solid state repair, locating the bad IC and replacing it is no big deal. If you havent, stay safe and call in a pro to assist you in this repair, as there is alot of high voltage inside this puppy that is still present even if the set is unplugged. It should not cost an arm or a leg to repair this set. An honest repair on a set like this if you take it in should not exced 125 to 150 bucks. Good Luck PS Please dont forget to rate this thread.

Posted on Oct 22, 2006

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SOURCE: sony tv picture keeps flashing

You likely have bad solder connections around the tuner area. This model has a history of problems in that area or the tuner itself.

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SOURCE: Sony TV Trinitron is on standby

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SOURCE: Sony Trinitron TV - Keeps Blinking

Hi,
Try this link
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pls rate my suggestion....

Posted on Jun 23, 2009

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