Actually for Service Mode you will need to do this:
While holding the module with Switch #1 on your left
Switch #1 = OFF
Switch #2 = OFF
Switch #3 = ON
Switch #4 = OFF
Turn blue dial clockwise till the end
And to return it back to Burst flashes
Switch #1 = OFF
Switch #2 = ON
Switch #3 = OFF
Switch #4 = OFF
Turn blue dial counter-clockwise till till about the middle (doesn't really matter at what point) |