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Old 4th July 2013, 12:07 AM   #11
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Quote:
Originally Posted by Derick12530 View Post
Anyone ever worked on a us amps vlx400
Yep. Once. It took up the whole bench. I had to bring a table up to the bench to slide the boards out. I spent a lot of time bending each transistor forward slightly to clear the insulators.

That was over 15 years ago. I don't have that kind of patience now.
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Old 6th July 2013, 09:52 PM   #12
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you never wanna work on a vlx 400
and i heard theres alot of special must know's and only the us amp parts work anything else just blows it
only a few ppl are qualified and not many more know enoff to do it right
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Old 8th July 2013, 11:52 PM   #13
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Originally Posted by namesmeanlittle View Post
you never wanna work on a vlx 400
and i heard theres alot of special must know's and only the us amp parts work anything else just blows it
only a few ppl are qualified and not many more know enoff to do it right
Not in my experience. USAmps used some of the most common parts available with the exception of their SAT (just a PICMicro). Then again, if you're not experienced I would never recommend repairing any amplifier with that much power capability. A current limited power supply is a must. At that power level, I would power up the audio stage and power supply stages separately to ensure everything was correct outside the heatsink.
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Last edited by EnvisionAudio; 9th July 2013 at 12:01 AM.
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