Hi all,

As some of you know, I just picked up a project Williams Cyclone. Little by little, I'm getting the machine running.

It's always great to see a dead machine come back to life.

I have virtually no system 11 experience. Actually I'm an EM guy with a bit of SS experience.

I'm trying to fix a couple of issues that I think may be related to opto switches, and could use some guidance.

The 1st is: the drop target does not reset or score. It resets during test mode, not during game play. It does not register in switch test mode.

the 2nd is that the Mystery Wheel home switch is open (diagnostics says H 256). Display 3 is inop, so the number of errors can't be read. Also the wheel does not spin, either during game play or during test mode.

The manual states that in order to see if these are switch or cpu problems, to disconnect connectors IP8 and IP10 from the CPU and jump the associated leads as per the switch matrix. The problem is, I don't see those connectors on the CPU.

Q: 1) How can I be sure that the optics are bad vs some other issue?
2) During test, it feels like the MW motor is trying to spin, but it doesn't. Anything to check before ordering a new board and motor?

Thanks

Grumpy,

Thank you. I'll check those and report back.

Also, did I mention that I'm new to SS games?

When checking for 12v on the drop target, since it's a momentary switch, does it matter what state the machine is in? Normal play, test etc.

Also (a newbie question) how do I check for that voltage? do I check it across the grey/yellow lead and a known ground?

In the mean time, I disconnected IJ8 and IJ10 and jumped the associated pins for those two optos. They showed the switches closed when jumped, so I'm assuming bad optos. Would you suggest replacing just the optos or the entire boards?

Thanks

Grumpy,

Thanks.

BTW, I don't see a black wire, there is a black/yellow wire, is that the ground? If so, I don't get a reading, but the Gry/Yel to ground braid reads 11Vdc.

BW, I ordered a few optos just in case, worse comes to worse I'll have spares.

Thanks

Yes, there is one.

Drop target and mystery wheel fixed!!!!!!!!

They must share a common ground. I traced the ground from the drop target (oh, what fun that was) to a connector on the power supply. When I unplugged the connector to check continuity, it was obvious what the problem was. The ground pin on the board was bent. straightened it out, replaced the connector and both worked.

Thank you so much for the assistance. Now to find a short in the GI circuit, replace the bad display, add a battery holder and replace the 10k roll over switch (which is no longer available from anyone). then the game is 100%

That's what I ordered, albeit from a different company that has switches from the original manufacturer. Now I need a pic of that switch from an actual machine. The part listed in the manual shows an odd wire form shape. I don't think it's correct.

Great. Thank you. You've already gone above and beyond.

Fedex? That seems a bit extreme, but if he wants a six pack, I'll PayPal the cost.

I can do that!