We went in the hut to check the pion rejector connections to the ADCs. The data base map matches the labels of the cables plugged to the ADC. We tried to follow the cables that are plugged to the ADC to the patches panel on the second floor of the hut (above the scope), but we were unsuccessful at this. Now that I am here I realize that I used a very convoluted way to do so, so I guess I am ready to give it another try when the opportunity arises.
For memory, earlier this week (see this entry, I turned off the HV labelled PR1 in the HV gui and observed that the corresponding pion rejector blocks showed only pedestal.
This early test and what we did today seem to suggest that the map is fine. Even if I still have no clue of what is wrong with the Pion Rejector.