|Maintenace questions: Spice (HP31E)|
Message #1 Posted by Vieira, Luiz C. (Brazil) on 11 Dec 2002, 9:17 a.m.
I've finally recovered an HP31E. It works fine, but does not charge batteries, although charger is O.K. (output is 9VAC).
I suspect the flex circuit that connects both PCB's (main and power supply) and batteries/charger contacts is not O.K.; I had a lot of trouble rebuilding what I could in this flex.
What do you think: replace the entire flex for flat cables OR try to locate the problem and fix it? The flex is a lot sensitive (as many users know) and it was not soldered in the power supply board when I was given the calculator. I think previous owner allowed someone to try to fix this very problem, and calculator stopped working.
If I remove the flex circuit entirely and solder a flat cable, will it alter the value of the calculator as a collectible? I intend trading it for HP41 related stuff, but I'll not hide this fact. In other hand, the presumable buyer/trader may claim this is a change in original specs, and doing so, he/she may try to reduce this HP31E value.
I'm not thinking of money, just trading; anyway, I'd like it to be fair.
Any suggestions? Where to start solving this problem?
Thanks for any help.