The schematic is somewhat hidden. Go to RAP,s , then other faults, then IOT low voltage, then 24vdc. It shows that there are 8 fuses on the tray PWB, f1 thru f8. F1 feeds the whole board for 24vdc, and also the interlock switch. I was using the edoc for this problem, not a paper manual. When you shorted the interlock switch power to frame, the fuses are safety devices that blow to prevent the board from damage.
Bookmarks