ULN2803A output stage chip

Spare output stage chip (ULN2803A)

If an output of the controller is defect because the controller was overloaded or shorted, this chip is likely to be defect.

There are 2 of these chips on the board that are placed in sockets for easy replacement.

Only for standard controllers sold before February 2018.
Models:
TRL-D1
TRL-C1
TRL-B1