(Topic ID: 258276)

Dracula: strange opto issue


By Pinblood28

61 days ago



Topic Stats

  • 9 posts
  • 4 Pinsiders participating
  • Latest reply 58 days ago by ChrisHibler
  • Topic is favorited by 2 Pinsiders

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#1 61 days ago

Hi everyone and congratulations for this wonderful forum.

I Have a Bram Stoker's Dracula pinball machine that has a strange problem with some opto switch.
When I turn on the machine, on display in the test report, appear the messages "Check opto 73, L. Entry Lane" and "Check opto 56, T.L. Popper".
Furthermore, i heard a solenoid noise that continues to pop a little bit more than normally (maybe it's the 56 popper...).
The strange fact it's that after 2-3 minutes, the switches works normally, like they need the machine to "warms up"...
I have noticed that in the matrix of the Single switch test, the switches mentioned blink for 1-2 minutes and after this time they "stabilize" themself and work normally.
Which type of issue it is? How can I try to fix?
I hope you can help me, we love this machine in our family, because it is a gift of our dad years ago.

Sorry for my imperfect english.
Thanks and Happy New Year to everyone.

#2 59 days ago

I think you have this fixed, right?

Chris Hibler - CARGPB #31
Http://chrishiblerpinball.com/contact
http://www.PinWiki.com/ - The new place for pinball repair info

#3 59 days ago
Quoted from ChrisHibler:

I think you have this fixed, right?

Chris Hibler - CARGPB #31
Http://chrishiblerpinball.com/contact
http://www.PinWiki.com/ - The new place for pinball repair info

Was this thread posted twice?

#4 58 days ago
Quoted from pinmike:

Was this thread posted twice?

Yep. On FB too. It is somewhat frustrating when two parallel threads are launched.
--
Chris Hibler - CARGPB #31
http://www.ChrisHiblerPinball.com/Contact
http://www.PinWiki.com - The Place to go for Pinball Repair Info

#5 58 days ago
Quoted from ChrisHibler:

Yep. On FB too. It is somewhat frustrating when two parallel threads are launched.
--
Chris Hibler - CARGPB #31
http://www.ChrisHiblerPinball.com/Contact
http://www.PinWiki.com - The Place to go for Pinball Repair Info

Yes that’s right that’s why I always recommend to keep it all in one thread,Much easier that way instead of jumping around from one to the other.

#6 58 days ago

I'm sorry if i've posted the topic on two different section. Yes, i've solved the problem, thanks. It's strange that the post appears on FB. I have not posted it on FB.

#7 58 days ago
Quoted from Pinblood28:

I'm sorry if i've posted the topic on two different section. Yes, i've solved the problem, thanks. It's strange that the post appears on FB. I have not posted it on FB.

So what was the problem? Please share this kind of information with the community in case others have this issue.

#8 58 days ago

Yes, the problem was that two opto switches (56 and 73) were not working correctly. They works only when the machine was "warm".
The cause was a capacitor on the large opto board. I've replaced it. Now. The switches are ok.

#9 58 days ago

To add more info, WPC opto boards are aging such that the 100uf filter cap on the boards leaks and eats through the power traces. This is documented in the PInWiki with pictures.

Chris Hibler - CARGPB #31
Http://chrishiblerpinball.com/contact
http://www.PinWiki.com/ - The new place for pinball repair info

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