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Old 29th January 2010, 04:04 PM   #1
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Default Hifonics Brutus BXI 2008D

I just got this amp in for repair. The power supply is shot in this amp.

They are using DFP70n06 as the fets. Wondering if there is a good cross to theese?
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Old 29th January 2010, 04:31 PM   #2
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Rfp70n06
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Old 10th February 2010, 06:00 PM   #3
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Ok i put all new fets in the power supply all new gate resistors and checked the drivers they seem to test fine.

when powering it up it will draw 10 amps of current i removed the rectifiers to diable the output section. Amp still draws 10 amps of current.

Wondering where i go from here?
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Old 10th February 2010, 06:06 PM   #4
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Is the right, falling edge of the gate drive signal perfectly vertical down to within ~2v of ground on every power supply FET?
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Old 10th February 2010, 07:02 PM   #5
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Is there anyway to check it with a meter ? My friend took off with my scope and sine wave generator to make all the plugs and test leads and ect im going to need to be more productive and spend less time trouble shooting
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Old 10th February 2010, 08:12 PM   #6
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Put this one to the side until you get your scope back. There's no point in guessing at what's happening if you have a scope.
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Old 9th March 2010, 03:49 AM   #7
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Perry,

Im back to this amp i took the drivers out for the fets. And forgot what was in there Wondering if you know what drivers they are using for this amp ??
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Old 9th March 2010, 04:14 AM   #8
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PS FETs?

The attached photo is from a BXi2010. The 2006 is the same so I'm guessing that yours is similar.
Attached Images
File Type: jpg IMG_2344x.jpg (97.5 KB, 177 views)
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Old 9th March 2010, 04:49 AM   #9
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cool thank you Thats what i needed to know.

So Q7 A is c3228
Q8A : a1275
Q7: 1275
q8: c3228

Correct?
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Old 9th March 2010, 04:51 AM   #10
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Q7/7A are KTC3228
Q8/8A are KTA1275
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