Hi group, have a ginsan lumitouch meter door that the pre-soak button is not lighting or selecting the function. Usually I replace the button and all is good, back in business. This time that didn't work, I even tried swapping buttons with a known good and problem stayed with the pre-soak slot. Both buttons good. Anything else I should check before replacing the main board in the meter box? Everything else on that in that meter box working fine, including all the other functions. Does anyone know if ginsan or anyone else repairs these boards?