This thing is a royal PITA to fix, look for the proper waveform on (insert location here), but then it never tells you the proper waveform. Not to mention the two versions, battery and not, are jumbled together into one manual, which wouldn't be so annoying if they did a better job or organizing them.
Honestly i think Fluke designed this to where service would only be possible by Fluke, my disdain for them increases with everything of theirs i open.