OK,
I'm going DCC now and always knew it was going to be challenging but I like challenges. Lucky for me I picked the EF210
. It was hard off the bat but I learned a lot
.
This is a plug and play type of board although the install was not plug and play. Over all it is a straight forward install with some modifications but doable.
Troubleshooting if pretty much straight forward if you run into problems.
Motor not working is most likely no connections from brass motor clips to board.
Motor heating up is most likely a poor connection to the motor.
Try to avoid loose or poor connection this will always cause you serious problems. You need good contact between metal surfaces to conduct properly. So make sure it good and tight. Tint the motor clip with solder to give it more contact surface allowing the plastic clip to lock in better.
The next issue will be closing the unit back up. This is where I ran into trouble. The components on the board are a few mm higher than the stock board and causes the shell to bind when snapping it back together. It also causes the board to tweak and you may lose contact to the motor clip creating that dead motor symptom again.
This is what I did to remedy it.
I cut out the area where the chip and resistors were binding against the roof. This was an simple remedy because the EF210 has a two piece roof which covers the holes and you'll never know the hole are there.
If you wants to get a bearing of my cuts the left side of the hole around the gray clip is original. Measure from there and you can duplicate the cuts.
I have to make a good assessment before I start the next one. The 500.
Inobu
Boy did this need editing. 
