Question about Televison & Video
I assume you have a plasma TV. Usually this problem is a sign of the bearing failing in the color wheel. Depending on the TV, you can either replace the color wheel or you need to replace the entire assembly.
If you have posted additional comments giving your TV model, I'll try to find additional information.
Posted on Sep 13, 2010
The whine is caused by the power source that tries to start up but fails because the filtering capacitors drain way too much current , causing it to go in protected mode - several attempts in quick succession are needed because each attempt charges the capacitors a little more till they reach a level high enough for the source to work.
Replace these failing capacitors ASAP or they will fail with a lot more dire consequences.
Posted on Sep 11, 2010
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Posted on Jan 02, 2017
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