Have an HO Athearn CF7 & a LocoFi module (see attachments). Given all the wires involved don't know how all the wires are connected. Too used to plug & play decoders & haven't hard wired any yet. Have looked on the internet for help but no luck yet. Anyone know of a wiring diagram for this kind of installation? TIA
No worries. We're glad that you asked before powering it up. Although it isn't very clear from the picture but the wiring does seem wrong. It might blow up the module if powered up like this. We've prepared two more wiring diagrams to illustrate how it should look inside the actual loco (as opposed to the "wiring diagram"). Key points to observe:
MOTOR ISOLATION is key. The motor wires (orange and grey) should never come in contact with the power supply.
The orange connects to the top of the motor while the grey connects to the bottom of the motor.
To isolate the frame from the motor bottom where the grey wire is attached, a piece of Kapton or other electrical tape must be placed between the motor bottom metal strip and the frame.
The black wire connects to the frame towards the front of the loco.
The front and the rear trucks are connected together with a red wire.
Hope this helps.