Fix error 403.1 – Signal switching; ground switch
|Target version:||Keithley 2001 #6|
Failure: Cannot measure 0.001V ±0.005V at A/D IN.
Common at pin 9 of U511 is multiplexed to pin 8 (OUT) and measured in the same
manner as the previous 400 series tests. Measure 0V at A/D IN.