Quoted from mizzou:The machine is not reading any balls in the trough.
So it´s not reading all four Balls in the trough ?
On a SAM system game there should be three mirco switches detecting Balls 2, 3, 4 and
an opto pair which detects Ball 1 and a trough jam. Go into tough test and check the three micro switches and the two opto switches.
On one side of the opto pair (with just two wires connected) you should see two red LEDs sending light over to the receiver board.
If they are off measure on the two wires if power is getting there.
If power is there install two new LEDs or install a new board.
Lubbock, TX
