Williams IJ Tilt in Minecart Mode

eb94110

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I am having a weird problem with my Williams IJ "Tilting" during the mine cart mode. It seems to happen when the flipper buttons are pushed to direct the cart. It happens only sometimes. Any thoughts on what this might be?

It just started happening yesterday after I cleaned the optos, which I cleaned because the mode was not always detecting when I pushed the flipper buttons.

Any guidance would be great. Thanks.
 
Get out the manual and go to the Switch Matrix.

Put the game into Test - Switch Edges and test all of the switches that are in the same row and column as the Tilt switch (may be more than one tilt switch) - slam, coin door, etc.

A mis-wired switch (or one with a bad diode) in the same row and colum as the Tilt switch can register as the wrong switch - i.e. shows up as the Slam Tilt instead of a target or something.

I'd start there, and yes, I've seen that type of issue before.

RussMyers
 
Thanks for the direction. I actually tried to check the switch edges in the test mode, and now I found the escape button when I enter test mode is not working. That was not happening before. Any suggestions on this?

Thanks again.
 
the escape button

check the wires to/from escape button
sometimes de-soldering them/cutting back a 1/4" and soldering them back on can cure a bad connection. could be the switch itself has worn out

could be the ground wire to the switch has lost connection
check out the ground



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