|Re: 15C History|
Message #7 Posted by Vieira, Luiz C. (Brazil) on 21 June 2003, 7:16 p.m.,
in response to message #6 by Trent Moseley
to be honest, from the user point of view, any of them is good. But if we consider maintenance, there are a few points to be considered:
1 - the earlier models with flex circuit allow LCD maintenance without cutting the plastic rivets;
2 - in the other hand, I'm still scared with my previous flex experience: I was not able to repair the calcualtor because the flex circuit was contaminated with battery leakage and the trails easily popped out when I tried to desolder the IC's;
3 - although the earlier models do not need their plastic rivets to be cutten in this situation, I prefer maintaining and repairing the newer, latest Voyagers mostly because their PCB is not affraid of soldering irons; I successfuly desoldered at least three times.
I know battery leakage corrodes the glue/resine that holds cooper foil over the PCB (fiberglass) as well, and cooper trails may also pop out from rigid boards, but flex circuits need specific maintenance. I'm not sure I can handle these earlier models, and I have an HP16C this type...
Best regards, Trent.
Luiz C. Vieira - Brazil
Edited: 21 June 2003, 7:27 p.m.