When my TV the picture flickers off/on
First of all you have to check the power supply. If you would like to know how to test the power supply of an lcd tv then check the added video.
If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience
http://electro-medical.blogspot.com/
Testing LCD TV Power Supply BoardsSTEP BY STEP
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