LG Tv has horizontal lines

Jul 6, 2018
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Back story: I have a LG 47LD520 tv. We had a storm and my hdmi connections started having issues as far as my ruko not
working ext. I unplugged everything, plugged it in and then everything worked. Then another storm hit where we lost power. HDMI connections started having problems again, so I unplugged, replugged, and then turned off tv. Went to tune it back on and the red light flickered, turned blue and then nothing. I replaced the power board and main board (with parts from eBay). Now it turns on and I see the back light but the picture is grey black and sometimes colored lines. What can I do now?

 
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