Hello all. It has been a very very very long time since I have posted. Some of you I missed, some...I am sure we'll get along just fine, ha.

I was working on fixing a bad resistor on my display board for my Time Warp. Some of the segments were out and the resistor was burnt. After having it fail again I started retracing the issue. And that's when it happened.

I 'believe' one of the finger contacts on the main board folded over and bridged the +5v and +100v on the main board. I say this as when I pulled the board the finger pad was loose and looked bridged but I had already pulled it so I hadn't done a continuity check to confirm this. On a side note I believe the burning resistor was due to a similar issue on one of the satellite displays but we'll get to that later.

So as it stands my game has:

Good unregulated 12v (within tolerance)
Good regulated 5v ( I believe 5.02v)
NO +100v, good -100V
Lamp voltage seem higher at 22v
And Sol seem higher at 39v

So again, display 'connected' at the very least. In addition to now non working displays (no +100v) my driver board appears locked up. I get the game to boot, 2 LEDs come on for a moment and then go off, I hear a tone from the sound board, however a few coils will lock on (I have removed the sol power wire for now to prevent blowing), and a few lights lock on.

I had experienced this before with my Gorgar and it was the PIAs so that's my main suspect for now based on the symptoms.

My plan is to re-build the power supply, replace sound caps while I am at it, do some upgrades to the driver board and power supply ( per Vid https://pinside.com/pinball/forum/topic/vids-guide-to-bulletproofing-williams-system-6 ) , and I believe I will replace the PIAs as well again based on the symptoms.

Looking for a second set of eyes, brains, etc to see if there is anything else I should be looking at/looking for.

Your time and attention is appreciated.

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Yes those are plugged in. At the moment I only have the display (100v) and the sol (30v) pulled as those are the two sections that are messing up. Should those be pulled as well? From the tests I have done so far the sound board seems good.

That bench tester is awesome!!! I have toyed around with making one but at this point I am kinda on hold getting new pins. So I just have the Simpsons Pin Party, Road Kings, and Time Warp for the moment. Blasphemously I shifted over to vids during the pandemic as they were cheaper to get, ha.

So I don't think I'll build a bench tester at the point. I want one but not sure I'll get the use. And as I mentioned I don't have Gorgar anymore unfortunately.

My plan at this point is to get as far as I can with what I have then decide what my best next move will be. On my long term list I want to get a system 3-7 bench, system 11, wpc, as well as a vid bench. Maybe when the kids are out of college. Ha.

Ordered my parts today. Most of them are for the System 6 upgrades. Also rebuilding the PS, HV section, and replacing the PIAs. We'll see next week when I dig in!

There is no real activities going on. Just some lights and solenoids locked and static.