Need to remove the horizontal control knob on my 576 so I can remove the board to get at the display selector board. One of the grubscrews undoes easily enough, but the other appears to have its hex slot stripped. A 1/16th allen key just rotates in the slot.
Any tips on how this could be removed? I don't have a screw extractor small enough (I presume the grubscrew is 1/8th ?).
