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no picture but there is power on led

I have a Sansui plasma television (Model No. STY 042) that is not working. There is power on the stand by led and when I press power button it switches but the power board relay switches on and off(clicks) there is no display on the screen, no sound?

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check ysus and zsus board,igbt transistors for a short

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What is ysus and zsus board. I can't understand anything

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there may be scaler board issue of lvds cable rusty please clean from eraser and refix

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Kholisile Stofile will be eternally grateful.
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