Item 20-20018-3 GP 35 non powered
NIB from 2010 acquired from E-Bay seller who's dad operated a train shop in Mi that closed down a few years back & sons are selling stock.
3 days into service, powered up & smoked the board powering LH lights with short continuing.
Disconnected hot feed to burnt board & SH lights on & short cleared.
The boards are mounted on a separate heat sink with the 1 still functioning gets very warm.
Tried looking the part up on mth web site, but item # not coming up, although I am able to bring up -1 & -2 powered parts, but not seeing light boards, (maybe integrated with ps2 board)?
any & all advice appreciated; where can I get a light board? Is this a common failure & is there a revision?
or, is this an indication of a short in light circuit?