Anyone recognize this motherboard? It has a Crest Revolution plugged it, and a bunch of switches underneath. It even has a capacitor plugged in to the Revo RX.
That looks like a board out of a locomotive to me.
motherboard from Aristo-Craft C-16 steam loco, says so on the board
a Crest Revolution, first gen decoder board is plugged in, non sound version, but still useable
My Aristo C-16 never had a pnp motherboard. Was this in the tender of the later versions?
Looks similar to what’s in the Aristocraft Long Steel Tender I picked up last year (ART-21401). Unfortunately, looks like the voltage regulator gave up and took the Crest board with it. 
I found a surface-mount fuse under the Revo board - first thing after the power feed. I soldered a polyfuse and the board started working again.
Definitely worth a second look. Thanks for the tip!