***TECH HELP*** IJ issue

PeepingScott

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Hi gang! My Williams IJ started doing something very unusual (to me).

When you push the play button, it racks up four players instead of a single player. Last night it did two players when not wanted, then a single player the next time, and then four when those games were done.
It typically will make it a four player game, and is really frustrating if you like to play single. Sometimes I do like to play two players, but I like having the option.

Any ideas or suggestions? This issue just started earlier this week...
 
Power supply voltages - first thing I would check. Nothing like low logic power (5.0 volts DC) to cause logic to go wacko.
 
Sounds like a classic switch matrix issue.

Switch wired wrong, diode on backwards, something shorting to switch lugs or switch wiring, or bad diode.

Look in your manual at the switch matrix, check the other switches on the same row and column as your start button. Then move on to all the other switches.

LTG :)
 
Maybe its as simple as your start button being broken. Ive never seen it and maybe this cant even happen but its an easy thing to look at first. Check the micro switch out in the test screen.
 
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