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I have samsung ln40b540p8f tv. Sudenly image is going off and on and this for every deveic conected to the tv: every 30 seconds image goes off than on and after 2 or 3 tmes like this no more image. Somebody ca help?

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6ya6ya
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Posted on Jan 02, 2017

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SOURCE: sony wega 60 in turns on and off by its self

Same problem here also and its getting worst each day.

Posted on Nov 20, 2007

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SOURCE: Samsung T.V. goes on for 30 seconds then no picture

If this is a flat panel LCD tv, this is a sure sign that the panel itself is bad. I have seen this before. Tv comes on works fine then within 5 minutes goes blank.

Posted on Aug 07, 2009

ginko
  • 19396 Answers

SOURCE: TV will only stay on 30 seconds

It looks like a bad PSU board.

Try leaving the TV unplugged overnight, that can fix some problem related to accumulation of charges on Power Supply capacitors.
On restart start the unit without connecting to receiver box, eventually use a DVD to test it.

If that does not work, then the TV is faulty and must be repaired. In that case better ringing the number listed on the owner manual.

Posted on Aug 16, 2009

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