I have a Dover MP1 duplex traction unit on my route with an issue where the car B1 and B2 relays are dropping out for a fraction of a second when travelling causing the brakes to drop as well causing a jittery ride. I've traced the signal to a MOSFET that is dropping the signal on the gate but im still not sure what the root cause is. The cars also have been homing to he basement level whenever no call is placed and just cycled relays when sitting there. The dispatching doesnt seem to be functioning either where both cars are accepting car calls but not hall calls.

Im really hoping someone out there has a manual on these puppies, because we have very limited information and i understand these are rare birds only released in Canada for a couple years, but someone must have a complete manual for this, or maybe a diagnostic tool (ive heard they have one but not sure on that)

Any help or knowledge would be very appreciated.

Thanks,
DANO