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Old 15th January 2008, 08:09 AM   #1
diyAudio Member
Join Date: Jan 2008
Default Mtx Amp 100

I recently acquired an MTX AMP 100 subwoofer and it has a loud buzzing sound when powered up. Does anyone know where I could get a schematic and possible trouble-shooting help with this. The circuit board is labeled SUNBOW SP-600.

Any help would be greatly appreciated.
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Old 16th August 2008, 03:23 AM   #2
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Join Date: Aug 2008
Default MTX Amp 100

Did you ever get this fixed. I have the same problem, and cant find any help.
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Old 2nd February 2009, 10:55 PM   #3
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Join Date: Feb 2009
It appears my sub just started doing the same thing. It still works but obviously there is a short in the circuit board or something that is causing the hummmm or buzzzzz.

Any thoughts/help/advice???

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Old 10th September 2013, 08:19 PM   #4
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Join Date: Sep 2013
I just got one to fix with the same problem, I need to know the value of Di04, and Di03, I will share infomation as I progress.Thanks
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