71B: repair/polish LCD screen scratches

[Hans Brueggemann]

the bezel is held in place by a very strong self-adhesive coating on its back. i managed to dissolve the coating by repeated careful application of lighter fluid along the edges of the bezel (that took me a couple of hours, though). you need apply some gentle force to convince the bezel to come off, and in due course you will ruin the perfect flatness of the bezel. in hindsight, it was not worth trying because of all the consequent hassle to get it back into shape.
also, don't try to use heat to soften the adhesive coating, or acteone to dissolve it. both methods will ruin the plastic of the calculator's top shelf.