(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

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#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?

Peter
www.inkochnito.nl

#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.

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