crwdns2934241:0crwdne2934241:0 Not Albert Einstein

crwdns2947189:0crwdne2947189:0:

Why doesn't my = key work?

crwdns2934249:0crwdne2934249:0:

I can add and subtract all day, but my equal key = does nothing except easily press down and pop back up.  The machine worked last week, so I'm stymied.

crwdns2866306:0crwdne2866306:0:

Texas Instruments TI-5130

crwdns2915684:0crwdne2915684:0:

open