(Topic ID: 115484)

WPC sound board 16-9058 problem

By Inkochnito

5 years ago

Topic Stats

  • 5 posts
  • 3 Pinsiders participating
  • Latest reply 5 years ago by Inkochnito
  • No one calls this topic a favorite


Linked Games

#1 5 years ago

I have a sound board in need of repair.
It's a 16-9058 board from Fish Tales.
At power on C26 and C28 burned to a crisp.
Both are tantalum 1uF.
What could cause this?
Bad big caps at C24 and C25? (4700uF each)
Or should I look toward the 7912 and 7812?


#2 5 years ago

I had C28 blow on a TAF sound board recently at power on.
Replaced the capacitor and all was fine.

#3 5 years ago

Hey Peter,
I don't think the 7812/7912/C24/C25 can cause the C26/C28 to blow.
More likely a shorted diode (D1-D4) or just plain old capacitors.

gr. Sascha

#4 5 years ago

..But a shorted diode would give other problems as well,.. just old capacitors then.
Maybe check C24+25 if they are still connected in the circuit and still working.

#5 5 years ago

Thanks Sascha!
I'll just replace them all.
C24, C25, C26, C27.

Promoted items from the Pinside Marketplace
$ 159.99
Lighting - Other
Lighted Pinball Mods

Hey there! Got a moment?

Great to see you're enjoying Pinside! Did you know Pinside is able to run thanks to donations from our visitors? Please donate to Pinside, support the site and get anext to your username to show for it! Donate to Pinside