I have a mitsubishi 60 inch RP that has a pin and barrel issue, only its occurring at the top and bottom of the screen instead of the left and right sides where I normally see this issue. I suspect horizontal output transistor may be failing.. but not sure. The blue CRT is out as well. TV was working great the night before and now it is having these issues all at once.
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try cleaning the lens & mirror, there may be something in there. other wise may need a new light engine. If the light engine is what's causing the issue, recommend replacing the TV with a NEW LED or LCD TV, due to costs.
These are fairly simple, remove the speaker cover and then remove the screws at the bottom of the screen, then the whole thing lifts up and off, be sure to unplug the front panel controls, this plug can usaly be found just behind the cover behind the speaker grill