Question about Soyo Onyx SYTPT4227AB 42 in. LCD TV
You may have dying power supply due to bad DC filter caps, that will be the first place to look.
If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on:
Please see my basic troubleshooting guide here:
Posted on Jul 11, 2010
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Posted on Jan 02, 2017
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