I have an HP-11c that's not firing up. I checked it's innards to see if anything was amiss, but everything seems firm and in one piece. I hooked up external power, and it worked(!) However putting in a new set of cells resulted in either "Pr error" or nothing at all on the LCD - and the keys did nothing. I suspect it's sucking too much current from the cells... Any ideas? Any recommendations for a repairer ?? (Preferably UK) Thanks guys.
Sick HP-11c
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