GGG posted:If he modified the smoke board by cutting trace or removing components but forgot to parallel resistors that would not cause any issue. You would have a 32 ohm resistor instead of an effective 8 ohm. If the smoke fan motor has issues that would be a draw on the 5V circuit and potentially cause the PS-3 board not to work correctly. Since board bounces back and works fine with smoke disconnected you might not have board damage just bad smoke fan motor.
Now if components not removed or modified on smoke
G
The smoke unit resistors were not put in parallel, i.e. the traces on the smoke unit were not cut and the smoke unit was connected to the board and powered up. If the smoke unit fan and resistors are plugged in the board will not power up and the fan on the smoke unit will constantly run. With the smoke unit (both fan and resistors) disconnected the board will power up and run fin in DCS and conventional. I assume this damaged at least the smoke circuit on the board. Is that repairable or is the board trashed?
The locomotive came to me like this. I am attempting to see if it is repairable for that person.
