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Old 14th January 2011, 12:16 PM   #1
diyAudio Member
Join Date: Jan 2011
Default Rockford Fosgate T3002

Hello! So I got this t3002 from my brother and the speaker outputs are putting out a steady stream of power all the time. You can hear some music... Then smell blown voice coils... Rip w7... Well anyway after searching all night I have found nothing at all about this problem + amp combination.

When I run it at a lower amperage the speakers produce more music and if I wire it up in my car it just pushes my p2's into their baskets with no sound what so ever. So I was thinking one or more of the resistors are fried. I have been looking for a schematic for this unit to only find wiring diagrams to hook it up.

I found this post
Originally Posted by I Am An Idiot View Post
Perry, I have seen several of these amps with negative rail on the speaker output and come on and remain on untill the smoke comes out of the speaker.
^ that's exactly my problem.
But the thread wasn't about that so I'm still hunting down info

I have a ton of experience soldering amps but not locating bad components... Mostly I just have to resolder broken off smds or fried transistors but I have looked at every inch of this thing and I cannot find anything physically wrong

Any help for this tired fool would be Just awesome.
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Old 14th January 2011, 01:06 PM   #2
diyAudio Member
Join Date: Nov 2003
Location: Louisiana
Which of the bridging speaker terminals has more than a fraction of a volt of DC on it?

Place the black meter probe on the amplifier's ground terminal. Place the red meter probe on the point where you need to measure the voltage.
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