My K2 displays 0.3 volts lower than the voltage I measure on the cathode side of D10. (This is after the diode drop of 0.2V) I verified the voltage divider R9/R10 had the proper voltage. Also pin 7 of U3 and pin 5 of the MCU U6 show the expected voltage. Pin 1 of U6 reads 5.13V on the DVM. Is this within the expected error for the A to D conversion on the MCU U6? Thanks, Ed KG4ARN #3212