Ill try to summarize:

During a game the 3 bank got stuck half way down

Put in motor test and tried to operate motor with menu buttons and flipper buttons.

The motor did not move in that test but a puff of smoke appeared from under the playfield

I removed, cleaned, regreased the motor and tested it and it was working just fine

I grounded the transistor (Q29) and the motor moved up and down but hitting the 3 targets in gameplay does not make the bank go down

When I turn on the machine the bank goes down and up to find home

The "disable motor bank" in settings is set to "no".

The up and down limit switches on the motor test fine in switch test.

I reversed the CPU to Driver ribbon cable and firmly reseated the ASIC chip and no improvement.

Still not working and still no idea where the smoke came from.

WTF? Any ideas?

Haha yes sorry for the delay in getting back to this thread. Cleaning the motor out and adding new grease solved the smoke issue. The factory reset cleared the credit dot and got me back in action. All is well now! Thanks again Beemus!

I am hoping the small amount of smoke that came up through the playfield came from the motor when I was trying to operate it in motor test. It would not budge so maybe it heated up trying to turn? I pretty much never leave games on and unattended. Just on when I am playing.