Re: HP41C strange display behaviour Message #2 Posted by John Robinson on 21 Jan 2010, 6:37 p.m., in response to message #1 by Alberto Fenini
Hi Alberto, it is possible to disassemble the display itself, but first you would nened to desolder it and remove it from the calc. There is a black metal spring "clip" along the top and bottom of the display. By removing that gently, the display should come apart into four pieces, the circuit board, the glass "display" and two ribber "zebra" connectors. You should clean the contacts on teh circuit board, glass display and clean the zebra connectors all with a good electronics cleaner, say an electolube product, then reassemble gently, and resolder it back it.
Cheers,
John
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