Turning 41C into 41CV

[Hans Brueggemann]

(03-18-2016 04:59 PM)wojtek Wrote:  If I buy a 41CV with broken display would it be possible to change my 41C into 41CV just by exchanging some circuits ? which ones should I exchange?

i assume that a "broken display" means that not only the protective perspex shield, but also the display module itself is "broken".
check whether both HP-41C and HP-41CV do _not_ have the rounded-corner style display. that is, both calculators are of the "fullnut" variety, which can be identified even if the display is broken.
see here for pictures
if both are "fullnuts", then you may simply implant the motherboard of your CV, which also holds all the extra memory of the CV, into the C to turn your HP-41C into a Franken-CV.

however, if one of the calculators appears to be a "halfnut", then there is no chance to change baords.