Home Forums General Discussion Technical Questions US Elevator dispactor frozen, any ideas

Check that personally jumpers match the MJ jumper. You open the MJ jumper ( normally red) and see how the jumper wires are configured and make sure they match the elevator assignment of the personality board. Can can switch #1 car assignment on personally board but you must also match with proper MJ jumper. Otherwise check jumpers with PCD to assure they match actual physical locations. If you shut down #1 car then power for calls will be supplied by #2 car and so on. So if you have a bad board in the string you can find it by shutting down cars one at a time till problem goes away. If your modding a car the daisy chain has to be maintained and personally compensated. Sorry these are 1200s check PM