Cftbl - pinball repair person needed

[Harry francis]

Happy new year all,

My beloved creature has developed a fault where it keeps resetting every few seconds. I’ve worked through the simple and obvious tests on here;

Williams WPC - PinWiki

www.pinwiki.com

And now I’m down to the board checking tests and this isn’t my strong point. Does anyone know or recommend a repair man?

I’m Berkshire - RG8 area

Thanks,
Harry

 

[pinballtoys]

Hello Harry, hope all's well
try one of these
cheers Bob

 

[Harry francis]

Awesome thanks Bob - ordered!

 

[Calimori]

Yes, sounds like a 5v drop for is the next thing to check for if you haven’t already.
If that does solve it, then that confirms the issue and you can decide if you want to get the root cause on the power driver board resolved.

 

[Harry francis]

So update, I installed the 5v controller and I’m now getting this crazy noise and failed startup. This is happening even without the 5v controller Installed so I’m guessing it’s an issue that might have developed recently (haven’t turned the machine on for 3 weeks of so). Any thoughts?

 

[Chilpin]

Hi Harry, the game is still tryin to boot. And seems to me is a low voltage problem. Very common in this games. And those 5v daughter boards are just a band aid and not always fix the problem. You have to check your voltages in the mainboard and replace the caps. But check this guide before: https://www.pinwiki.com/wiki/index.php/Williams_WPC#Game_resets

 

[Calimori]

Hi Harry
I am not a repair man, I am just someone who is happy to have a go at fixing these sorts of faults.
How comfortable are you with checking over the voltages on the power driver board, at the test points, to see what is coming out? If you have done that already, can you share the figures?
Also, how comfortable are you with removing the power driver board? If you could get it to me in Luton, then I can have a go at diagnosing the issue with my WPiCiri board made by @gabriele.ciri
(https://www.pinballinfo.com/communi...r-wpciri-tester-group-buy-closed.48862/?amp=1)
We can then test it in one of my WPC machines.