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Model is panasonic tc-l58e60 See pictures of the problem. I was told by the only TV repair shop near me over the phone that the panel is possibly gone bad. If I leave the TV unplugged for a couple days the display is 100% clear and works fine for about 2 hours before the lower half goes dark and fades left to right. I replaced the main “A” board as that’s what someone had mentioned it could be. Didn’t fix the issue. Should I try the “P” board next? I just don’t I understand how the screen can work fine and be so crystal clear and then just half of the screen crap out like this.
Hi, Here’s the service manual for the TV. Go to Sect 7.3 LCD Panel test mode on p.16 to determine whether the problem is in the panel or not. Since you have replaced the A board it is either in the panel or the connections from the A board to the panel.