Chosen Solution

Is there a repair available for a Radio Shack EC-5001 Bus-Fin Calc. Still does basic arithmetic (+-*/) but no fin func.Radio Shack

All I can recommend for you is to clean the soft touch buttons if you wish to disassemble the calculator. I sent my very expensive CASIO to the main repair facility and they wanted to replace all 3 main parts, the entire calculator that is to say, I have no faith. If cleaning it will not fix that button, time for a new calculator.