It's a pain on this set, ironically I just got finished repairing a backlight problem on this same set. If the pedestal is attached, you will have to remove those 4 bolts. Then there are 9 outer screws around the outer sides of the frame, remove them. Then there are 6 bolts towards the middle (in deep holes). You will also have to remove the plastic cover just above the video connections. This plastic cover is held on by two screws. Once you remove the screws to the cover, slide it down then lift off, it should come off. At this point the back cover should come off. To access the main board and the power supply/inverter, you will have to take the cover off the silver box. You will have to lift the silver box out of the TV but be careful, there are wires attached at the bottom.
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It's a pain on this set, ironically I just got finished repairing a backlight problem on this same set. If the pedestal is attached, you will have to remove those 4 bolts. Then there are 9 outer screws around the outer sides of the frame, remove them. Then there are 6 bolts towards the middle (in deep holes). You will also have to remove the plastic cover just above the video connections. This plastic cover is held on by two screws. Once you remove the screws to the cover, slide it down then lift off, it should come off. At this point the back cover should come off. To access the main board and the power supply/inverter, you will have to take the cover off the silver box. You will have to lift the silver box out of the TV but be careful, there are wires attached at the bottom.