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I have a 2.5 year old kdf-e55a20 grand wega. Screen goes dark, no audio, comes back after a minute or less, stays on for short time or could stay on for hours.

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Sounds like your signal tuner or your main board (main unit), if the 2 boards are separate I would say your signal board. But you may also look at your power supply for any bad caps (capacitors), they would be bulging on the top or leaky (brownish stain) if they were bad. This drives all the boards that above mention!

Posted on Feb 19, 2009


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