PinBobF you should update your board issue

Did you verify with a meter that the switches themselves work reliably?

Not sure if you are asking PinBobF or epeabs ? Thats a good point, I have not actually checked my coin door switches with a meter. But that brings up another question for me. Does anyone have a few pictures from different angles of the wiring at the switches themselves? You never know on a "new to me" machine what is wired correctly or not.

I found my problem on the coin door switches. The IJ4 connector on the CPU had all three wires off one spot. Locations 1, 2 and 3 were being used and #4 was open, yet #1 is the key. Moved all three wires over one spot to locations 2, 3 and 4, and the coin door switches work properly. But even setting the background sound to on, it is still not there. Do I need a new sound ROM?

My other interesting issue is that when pressing the right flipper, I am scoring 10 points (which is the amount for the slingshots). I have opened up the slingshot contacts and it is still occurring. The left flipper also scores some points, maybe 30 or 40. I have also tried banging on the playfield but not really getting anything to score.

You have to make sure you're setting the setting that matches your ROM type yellow or green look in gallery for the page that explains the differences.

Thank you slochar. I think that was part of the problem, I had looked at the wrong page for adjusting with the green roms. Setting #31 (new number) to 01 should give me the background sound throughout the game, but it isn't still.

Can anyone help me with an issue I’m having with my Flash?

Up until yesterday, everything was working fine, I’ve been playing it since I bought it about a year and a half ago. I realized it would probably be a good idea to change out the AA batteries, since it had been over a year.

I changed those out and put the back glass back in and turned it on. I figured I would have to cycle through the settings at the coin door to get it back to free play. However, upon powering it back up, the display read “0486 2” in the top left display and “04 00” in the bottom left display.

I can’t cycle through the settings past this. If I push the switch it will cycle from “04 01”through “04 35” and not advance to 05, 06, 07 etc.

I took a volt meter to the new batteries to see if they were good and all are reading ~1.6V. I can also get the machine into attract mode. I just can’t advance past function 04.

Any tips on what the problem may be? It’s probably something simple, I just haven’t ran across this issue before.

Thanks

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Turn it on. When it ways "0486 2", toggle the power on and off again quickly. It should clear the memory and come up. You'll have to reset your settings. In the future, you can change the batteries with the power on (carefully) and not lose settings.
Also, consider putting in fuses before your bridge rectifiers. It's simple, quick, and may save you some smoke if those BRs fail.
https://pinside.com/pinball/forum/topic/vids-guide-to-bulletproofing-williams-system-6/page/2#post-945742

I do need to get around to those fuses soon. Thanks for the reminder and link.

I tried what you suggested and it worked. I was finally able to access all of those functions. Next time I change the batteries I’ll do it with power on as you said.

I appreciate the help.

Picked up my first pin in November...Flash! Got it for a steal, $600! The guy warned me it had some switches that didn't always work, but thought he might have fixed them. They worked for a few weeks then started cutting out again. Also, the flashers didn't work. Outside of that the playfield was in rough shape and the ball was getting stuck on cupped inserts. A local shop recommended a hardtop so I went to town on that whole project. Installed to the hardtop, replaced the rubbers, went LED, fixed the flasher (missing transistor and had a bad resistor), and the switches started working again (think I fixed a short). The game plays amazing now, we love it even more!

Going down a dark rabbit hole though, I really want Diner and Who Dunnit, and my girlfriend wants Black Hole after playing it an expo....and I pre-ordered Scooby Doo CE, ha.

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Need a post delete option...posted asking where the serial is, finally found the "stamp" on the front of the cabinet

Just got my first machine, Flash. It is clear there has been some humidity issues probably. The front of the cabinet has a slight warp in the plywood. Is there a way to straighten out the plywood on a pinball cabinet?

I’ve been down this road before but still can’t seem to get it fixed. My game is shutting down when both flippers are hit at the same time. Shuts down. Reboots fine and plays when I turn off and on. At least until I hit the flippers again.

I replaced all the caps on power supply board as recommended by others.

Any other suggestions? Is it worth sending all the boards out to be bulletproofed? If so, any recommendations?