Archived posting to the Leica Users Group, 2003/09/08
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Karen
Much has changed from the early wiring in cameras and what is done today.
The wire connections has dropped down to almost nothing and all is done
with flex circuits and pc boards, which are highly reliable even in harsh
environments. Broken wire connections are almost unheard of these days.
Todays cameras take maximum advantage of these new technologies in wiring
and circuitry.
Gene
Karen Nakamura
<mail@gpsy.com> To: leica-users@mejac.palo-alto.ca.us
Sent by: cc:
owner-leica-users@mejac.palo Subject: Re: [Leica] Electronics vs. mechanics
-alto.ca.us
09/07/2003 10:46 PM
Please respond to
leica-users
>The failure curve of electronic equipment is entirely different from that
of
>mechanical equipment.
That's true of electronic equipment that doesn't move (computers,
VCRs, TVs, etc.), but what I've found found with Classic Cameras of
the 1960s is that the prime failure point is in the metering
mechanism, especially the solder joints. Much solder is susceptible
to what looks like chronic fatigue cracking, especially where the
leads meet the PCBs.
Karen
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Karen Nakamura
http://www.photoethnography.com/ClassicCameras/
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