crwdns2934241:0crwdne2934241:0 Dan

crwdns2934249:0crwdne2934249:0:

Try http://www.vintagecalculatorrepair.com.  Haven't used him, but he services many HP calculators.

FYI - for this model, he advises that this calculator is cheaper to replace than to repair.  I picked one up last year for $50 on eBay.

crwdns2915684:0crwdne2915684:0:

open