I recently had a battery leak on my U1242B. I cleaned up the corroded contacts the best I could. I also had one of the contacts on the back of the PCB corrode slightly where the battery cradle contacts touches the main board. There wasnt any other battery damage I could see. It was working fine until today.
Now I constantly get an AErr with both leads plugged into the COM/T1 sockets unless I move the rotary to A. It seems to think a lead is plugged into the A socket.
Is this something easily fixed?