Thanks guys...it is a mystery.
@Rich Melvin @PRR Man --No markings on the decoders at all. I agree a botched job at best. Best part is I have another Weaver that I assume will be the same way once I take it apart.
I love the VO-1000 so I will clean it up and if I need to buy a new decoder I will do that. No sense in doing something halfway! I want the engine to be reliable and on the tracks not the workbench.
@Dave_C I have 1 Atlas GP35 I converted from TMCC to DCC and I have another I need to do the same to...those I can handle, this weaver will eventually be fine, I just need to snip wires and identify what goes to what.