(Topic ID: 71772)
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1 month later
I got my Super Nova mostly booting. But it seems to randomly lock up. Any ideas on what I should be looking at?
So, I've got it down to one specific switch. It is one of the switches that feed into the SCU-1 board on the underside of the playfield. I cleaned the contacts, reflowed the solder and replaced the lm339. None of it seems to matter. Once that switch is hit, the game stops, except that hitting it again will act like it is looping through settings or something. Eventually, what looks like a solenoid firing pattern will start if I keep pressing it.
Any ideas?
1 week later
Quoted from Rapid_Roy:I have had a chance to look at the schematics. Exactly what switch is causing the problem? Is it the 5000 outlane switches or the "N" rollover? If so, I would check the diodes connected to those switches, and the diode on the test switch inside the coin door.
I tried to make a video of the odd behavior:
That's the behavior when pushing that target repeatedly.
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