I purchased a non-working locomotive, which supposedly was analog.

I received it, and, as expected, did not work. When I started to dissassemble it to check what could be wrong with it, I found it had a decoder with some broken wires.

I've replaced the decoder and the loco runs fine now. However, I'd like to identify the decoder in order to wire it properly and test it to see if it could be re-usable.

I have no idea about which decoder is this. Can you help me?

These are the pictures of the decoder (both sides):





And this is how it was wired when I received it:





Many thanks for your help, guys!