I just read this thread about Randy Woodbury's recently purchased, but dead, 41CX.
One possible option for repairs might be:
http://www.internationalcalculator.com/
They specifically say that they do repairs of both the 41 series and the peripherals. I have a recently deceased 41CX myself and am eager to learn if anyone has experience with these guys.
Randy: if you give up on the idea of repair and decide to use this pristine 41CX for parts, I might be interested in the upper part of the case if the price is right. (-:
Back when I got my 41CX, I deliberately defaced it by applying a white plastic-based paint to the edges of the top of the case---I figured that way any cretin stupid enough to steal my 41CX would at least have to avoid using it in public on campus. Now I'd kind of like the "original look" back for my 41CX.
My interest in the top part of the case may be premature---I need to find out if my 41CX is repairable first!
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