Archived posting to the Leica Users Group, 2005/12/06
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]In a message dated 12/6/2005 12:46:14 PM Central Standard Time, macdude4@bellsouth.net writes: If I were Leica I would have designed the Digital M so that it could be upgraded. That way when the parts don?t exist to repair it Leica could simply upgrade it. Mark, This logic does not work in the world of modern electronics. New ic chips almost never use the same size die and pin out patterns, so drop in replacement electronics just does not work. I see this every day at work where parts become obsolete for a system which has been under production for a long period. To keep the system operating using replacement pats will require either a daughter board or even redeisgn of a circuit board. To keep this redesign at a minimum, we purchase approximately 10 years worth of parts as spares for specialized ic's. Upgrades always require new board designs, as the current ic circuits hardly ever use the same size package and pinouts funcionally. gene