I'd picked up an MTH SW7 from the large auction site for a project I was working on. The seller swore it was upgraded to PS2 when I notice the cab number was a PS1 release. Thankfully the price I paid was cheap even for a PS1 SW7, as when I opened it I found a board with an OSI chipset, no tach reader on either of the motors, and the original PS1 protocouplers.
I had an MTH RS3 with 3v PS2 and badly flaking paint which I'd originally picked up cheap basically for its innards for a future project, so it looked like this would be it. I swapped the PS1 and PS2 protocouplers, thankfully the PS2 motors were a direct swap for the older ones. I was just about ready to put everything back together when I hit a snag. I'm sure I took pictures of everything before removing any wires from the PS2 board, but now I have no idea where the pictures went. So now, of course, I have no idea where the wires go!
Thankfully the connectors for the board are all keyed with a different number of wires, so they were pretty easy to figure out. It's just the male and female 2 wire connectors I need to piece together.
The battery is self-evident, but there are 2 black male connectors, one blue, one green and 2 red. There's a black female connector from each of the PS2 protocouplers which I'd like to think go to the other 2 black ones, but which is the front and which is the rear? What are the green and blue, and 2 red connectors for? And I'm not sure if the red and black female connectors seen at left are from the PS2 board, or the PS1. The light connector on the window is from the PS1 engine, can I re-use it with the PS2, or should I swap it or replace it with an LED?
Any help would be greatly appreciated!
