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Posted on Sep 23, 2011
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1501 sub will not power up. i opened, inpected and replaced power fuse 250v 6.3 amps replaced with same fuse and it blew as well immediately. what to do and how. I have some technical experience.

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  • Master 5,807 Answers
  • Posted on Oct 26, 2012
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Isolate and look for possible shorted components.

Isolate the main power transformer from the board, and see if the

fuse still blow.

If it doesnt , then the rectifier and capacitors to the regulators.

But don't forget to check for possible shorted transistor

1 Related Answer

Anonymous

  • 3 Answers
  • Posted on Nov 11, 2008

SOURCE: AR1 Subwoofer Keeps Blowing the 5 Amp Fuse

I had the exac same issue. It started out with buzzing sound, but then quickly evolved into blowing the main 250V 5 Amp fuses immediately. I sent mine to ABTechservices.com and they found some blown resistors and leaking capacitors. I'm waiting to get it back (shipping to me now), but supposedly they have replaced and tested and all is working well. I'll let you know how it turns out.

The price they charged me, including return shipping was $187.50

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