LC-70LE836E Power ok, sound ok, but screen has no picture, just 3 rectangles

Nov 18, 2022
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LC-70LE836E Power ok, sound ok, but screen has 3 rectangles and n picture,is 2/3rds green, 1/6th blue, 1\6th dark green , can anybody make a suggestion before I aimlessly start replacing parts one by one??

Thanks
 

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