I need some assistance with my UP Dash 9. I read all the posts with what to do if you have a loco with a broken magnet ring and I chose option with the can motor replacement from Lionel Parts.
I replaced the can motor with the new magnet ring, R&R with a soldering iron the two wires (Yellow an Blue) and the electrolytic capacitor, R&R connector.
Here is where the trouble starts for me; The loco powers up, sounds function and when I increase the speed knob on the CAB2, the engine revs high but the loco will not move however, with the engine cover removed I can see ever so slightly that the loco with small jerking intervals moves but barely. When I placed my fingers over the flywheel I can feel the jerking motion but no real response. I rechecked my soldering and verified the connector was plugged in all the way. The motor is not binding with finger rotation and I lift the loco off the track to feel resistance and there is none. Same for the rear can motor assembly. No stress or resistance felt from the wheel gearing assembly.
So I started to probe visually for obvious things and I can see on the driver controller board that is mounted near the front Can Motor has a bubbled electrolytic capacitor on the top of that part. (I will try to furnish a picture)
So for the forum; Do the symptoms point to a bad driver board even before mentioning the blistered capacitor? Does anyone have any ideas for the next troubleshooting steps to rule out? Any help is greatly appreciated.