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Blinking picture Hello Premtech. I hope you reply to me. I believe you are one of the best if not the best on this site. My tv used to blink on standby about 10 times before clicking on, with no blinking picture on and off about two months ago. Now standby blinking has been increasing to about 120+ times when cold less when hot before clicking on, with picture blinking on and off all the time now. The brighter the picture the more frequently the blinking about every 2-4 seconds. With the brightness turned all the way down and a darker tv picture over all, the blinking would stop or blink a lot less frequently until a brighter picture came back up. The picture quality is still great like new and can't afford another tv. I'm tired of keeping picture dark and blinking all day long when brighter pictures come on. On PCB on back of tube I've turned up RV1791 screw adjustment a little before horizontal lines show up, but picture still blinks just a little less frequently. I resoldered 7 bad solder joints on resistors and other joints next to flyback transformer. I'm still getting blinking picture problem. Please help me pinpoint specific components and where to check and replace on PCBs. THANKS

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  • Master
  • 934 Answers

Do me a favor funstuff send this to my personal email address along with the model number. I get about 3000 emails a day so it's difficult for me to remember what model we are talking about...
Bill

Premium Technologies
PO Box 442
Long Beach, WA. 98631
360-642-4993
premtech@willapabay.org

Posted on Nov 03, 2008

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premtech
  • 934 Answers

SOURCE: SONY KV-35S26 Blinking picture

Guess I should have looked throught the next couple of posts... The problem you have there you will not be able to repair yourself but a good shop can fix it temporarily. The CRT (Cathode Ray Tube) or picture tube is shorted, that's what is causing your blinking. You can call around and ask a shop locally if they can rejuvenate it for you using a crt analyser. In the shop here we use a BK467 which would fix the problem for awhile. What they will do is take the back off and hook-up the analyser and remove the short temporarily. That fix could last weeks or even months, in most cases though never more than a year. Turn the RV1791 back down, it has nothing to do with the G2 voltage and you don't want to overdrive the crt anyway. Take it back down until the horz. lines disappear in dark scenes or background. Then take it in and have the picture tube rejuvenated. Then start shopping for a new Tv... You'll need one eventually but this will buy you a little more time.
Bill

William Rayburn, CET
Premium Technologies
PO Box 442
Long Beach, WA. 98631
360-642-4993
premtech@willapabay.org

Posted on Nov 03, 2008

6ya6ya
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Posted on Jan 02, 2017

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