Dutch Pinball
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Technical Support TBL FAQ
rev 0.51
Page 57 MPF Operations faq rel 0.70
Cardoor stutters in closed position
At the start of every new ball the TBL checks if the cardoor is closed. In case the cardoor home switch
is not working properly you will see the cardoor stuttering for a dew seconds in closed position.
Solution is 1) to re-
adjust the switch and if that doesn’t help 2) replace the switch
It’s a standard DB5 switch, like can be seen at
https://www.pinballlife.com/williamsbally-sub-
The bottom of the MPF has the PCB where all switches are connected to. The cables connected to
the switches have markings and you will find the same markings on the PCB. Below picture is of the
second design MPF, eg. with the stepper motor connected to (first design had the stepper motor
under the main playfield).
