If I remember right, assuming the cluster is lying on its face, the displays are on the bottom, then the display board is on top of the displays with fine conductive fingers going everywhere to touch the various parts of the display. There wasn't a need to remove this board, but I did it anyway because I like to take things apart.
Be gentle and make sure you notice how everything is arranged because some of the parts can move a little. Don't do it if you aren't sure of your abilities...anyway, the main processor board was above that, it was also a full length board also. Then the power supply and odometer boards above that. I had the main board out several times but the soldering was all done on the small power supply board.
I never did find a burn and I couldn't see the cracks but the solder joints seem to deteriorate over time and retouching them should fix the problem assuming that there aren't any failed components.
