TV start to flicker and goes to color vertical lines

My Vizio M55-F0 LED TV started to have a shaking screen or flickering after being on for about 10 minutes or so. Then the screen goes to color vertical lines. The sound would still play fine.

OK I changed out the TCON and Main board. I still have the same problem. I reset all the cables from board to board. I have 4 boards on the back. Main, TCON, Power supply and LED Driver board. The only boards left to change are LED board and power supply board. What board do i need to purchase next? any help would be appreciated

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