Athena P-6000 BASH amp repair - diyAudio
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Old 27th May 2015, 05:26 AM   #1
Magnum9 is offline Magnum9  Australia
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Join Date: May 2004
Location: Perth WA
Default Athena P-6000 BASH amp repair

So I have had this Athena P-6000 sub since new and the amp recently has dropped volume to virtually nothing and the auto signal sense also does not work. It still powers up if you switch it to manual on, but still virtually inaudible.

In order the parts I have replaced from reading various threads about this amp:
+/-15v voltage regulators
All amp MOSFETS
Power supply capacitors

I replaced these parts due to various reports I have read hoping for an easy fix, I did not test original parts first. Now I am down to actual fault finding and an hoping for some help.

The fact that the volume is low and no signal sense leads me to believe it may be a fault on the pre-amp board as this is where both these functions are located.

The attached schematic is not this actual amp but is basically the same, component labels are the same.

uploadfromtaptalk1432704090349.jpguploadfromtaptalk1432704118398.jpguploadfromtaptalk1432704166671.jpguploadfromtaptalk1432704342506.jpg

http://www.diyaudio.com/forums/attac...b-12-sub12.pdf
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Old 27th May 2015, 08:37 AM   #2
Magnum9 is offline Magnum9  Australia
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Join Date: May 2004
Location: Perth WA
I should also mention that Q5 looks like it has been hot. I have replacements on the way so will replace that next.uploadfromtaptalk1432715834808.jpg
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