I don't think there are any buttons are on the motor. For what it is worth I found this picture and description:
PM900 - pansat's DiSEqC1.2 motor, not true Horizon to Horizon movement only will track about 100 degrees of the ark. not 180
Between the two cable outlets there are to little holes. Now I seem to remember them being lights, but, with a magnifying glass I see two little pieces of plastic inside. I was told at one time in this nightmare to reset the motor by sticking a pin in to reset.. tried that .. still no signal and no movement in the motor.
The really annoying part Vgiddy.. is .. I set this up over two years ago and it has working (used to get all three sats) but since until I unplugged the cw and plug in the nova. Dead.
Please don't misunderstand me, I will follow any instructions or suggestions. Sorry if my frustration is coming through in my typing. Been a couple of annoying days.