In this case then there is no need to go to college, we can train people as 'board swappers' Change all the boards until you you find the faulty one, if it is not the board then swap the kit. Had a problem with a defib, the battery was no longer available, found another that had the same specs but physically different, couple of 'modifications' and the defib returned to the end-user and the end-user is very happy.
