F39 Bases Dropped
The DSP sends a bit to the host which indicates whether the IGBT bases are enebled or disabled, i.e. whether or not the transistors are allowed to switch. Once PTR is received, the bases should be enabled and remain enabled until the end of the run. This fault is declared if for some reason the transistors bases enable line is inhibited by the DSP in a drive state where the bases should be enabled.
I think the repair shop made a mistake...
