Made a voltage divider, and set the M+ voltage at 5v. Still that little red light. Have a new driver on order. Hopefully the diode isn't burnt. Thanks for the help.
Hi all, longtime lurker, first post.
Having trouble with a FM + M140 Diode from DTR. Using a 12v/28A power supply. Have the M+ wired through resistor to V+, and interlock on a switch. Got everything wired and the diode worked just fine at 500ma. Started to turn current up in small increments...