Question about LG 42PX5D 42 in. Plasma HDTV

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While watching the tv I heard a loud zapping sound and the screen has no pic. Sound is find - but no pic. What should I check?

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Check the fuse on the y-sustain board it is probably open circuit. I suspect the zapping sound is one of the IC's on the buffer board has blown (this would cause the Y-sustain fuse to blow) this is the board on the left hand edge that is connected to the Y-sustain board, there is more than one & if you inspect them closely you will probably see one that has cracked, if this is the case then replace this board. Then replace the Y-sus fuse.

Posted on Sep 06, 2009

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Posted on Jan 02, 2017

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I assume this is a plasma TV? You will have a fuse blown on either the Y or Z sutain board, there is also a possibility one of the driver IC's has blown on the buffer board, this will shut down the screen & leave the audio working normally. You can check these boards which sit on the left & right hand sides of the screen.

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Hello mackenzie212, The loud pop you heard was most likely a capacitor exploding. I beleve the capacitor is also located in the power supply section of your TV. If you take the back off of the set you will see what can be described as a exploded, or bloated can. This component can be replaced, but I advise you to have it done by a qualified TV technician. This is due to the fact that their may be other unknown factors as to why the capacitor exploded, and a qualified TV technician can determine these causes past the obvious changing of the defective component. I hope this helps, Thank you, Shuttle83 http://www.electron-age-technologies-llc.com

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Good Day, ginabrownb;

When your TV talks to you loudly, it is a really good idea that you call a FACTORY AUTHORIZED SERVICE CENTER.

They can come to your home and give you an estimate, so you can determine if you want "it" fixed.

Good Luck, big IRISH.

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