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eddie fuller Posted on May 14, 2011
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Limiter light stays on with no sound. powers up fine but again the red limiter light stays on and no sound.

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Fred Yearian

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  • QSC Master 5,603 Answers
  • Posted on May 15, 2011
Fred Yearian
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The power amp is likely blown. The limiter also indicates when the amp is out of DC balance.

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SWR WorkingPro 400 watt head - no sound, Preamp Clip red LED is continually lit, Limiter green LED continually lit - fuse is perfect. It worked for a few minutes, then just stopped.

Since the PA clip is not lit, the problem seems to be up front...

First thing is to look for a bad cable as a broken ground could be putting hum at a clipping level. First thing, test this by unplugging all inputs. If the clipping light goes out, then you have bad cables or a ground loop.

Try sending a line level signal into "Effects return" to test if the power amps are OK.

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Disconnect the speaker wiring and speaker on the bad channel. Turn the level control(s) all the way counterclockwise and turn the amp on. If your DDT (limiting) light remains lit, it's time for a visit to your nearest certified Peavey service center....G.
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Page 8 of the owners manual explains this and suggests that if their procedure fails to take it into an authorized Fender dealer for service. The manual is dowloadable at Fender.com/support.
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