[Coco] MPROM woes (cured)

Bruce W. Calkins brucewcalkins at charter.net
Sat Nov 15 20:43:54 EST 2008


> Ok, the problem was that the source voltage was just not high enough.  I 
> put 3 brand new alkaline batteries in the harness and now the unit is 
> writing a 27128.  :)
> This is an issue I dealt with many years ago, going through many batteries 
> just because they fell below something like 8.5v and didn't supply over 
> 25v to the regulator.
>
> -- 
> Roger Taylor


So, what would happen if we put four 9v batteries in series?  A starting 
point of 36 volts into the regulator should hold up a while longer.

Bruce W. 




More information about the Coco mailing list