Machine: Bride of Pinbot, The
Williams, 1991I've been reading a lot about the Bride of Pinbot pinball, but I can't figure this out.
When I turn the pinball on, her head will rotate for a really long time and never can seem to find face #1. I've run the test and it'll rotate a few times, get to her eyes and the bumpers will pop, then move to the next face and will think it's on the open mouth face and will pop the bumper.
I have opened it up and I can't seem to figure it out. 
It is the switch that contacts the metal plate. If you have the top open you will see it in the back.
There is a switch inside the head that rides along the top metal piece that spins. There is an indent in that metal piece that will change the state of the switch when it's in the indent.
First, make sure the switch works. Remove the helmet and the two screws to remove whatever face is up when the game stops rotating. Go into switch edge test and work the switch by hand. You may need to go into head test and run the test manually to get it so the switch is in the indent area first, then go to switch edge test and test the switch. If the switch changes state in the switch edge test, make sure when you are in the head test that it shows that switch opens/closes when it rotates. You may need to bend the actuator arm so that it changes state when it goes in and comes out of the indent.
There's not much to the face position other than that one switch. If that switch doesn't work or it doesn't change state when it goes in the indent it will never know the position.
Quoted from schudel5:There is a switch inside the head that rides along the top metal piece that spins. There is an indent in that metal piece that will change the state of the switch when it's in the indent.
First, make sure the switch works. Remove the helmet and the two screws to remove whatever face is up when the game stops rotating. Go into switch edge test and work the switch by hand. You may need to go into head test and run the test manually to get it so the switch is in the indent area first, then go to switch edge test and test the switch. If the switch changes state in the switch edge test, make sure when you are in the head test that it shows that switch opens/closes when it rotates. You may need to bend the actuator arm so that it changes state when it goes in and comes out of the indent.
There's not much to the face position other than that one switch. If that switch doesn't work or it doesn't change state when it goes in the indent it will never know the position.
I just opened it and messed with it some and turned it back on. Now it's able to find the 1st head but it sometimes doesn't go from 1 to the next one. Or, it'll cycle through a few faces. It's really confused.
The switch is either intermittent or not adjusted right. Go into test and verify it is working - there are only two indents on the metal so it shouldn't change state with every face.
I keep reading about this spinning head, just where is it on the playfield. I repair a bunch of used machines and Pinbot is one, but I see no evidence of a spinning head.
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Huntsville, AL