Hifonics Brutus BXI 2008D

[mike49504]

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?

 

[Perry Babin]

Rfp70n06

 

[mike49504]

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?

 

[Perry Babin]

Is the right, falling edge of the gate drive signal perfectly vertical down to within ~2v of ground on every power supply FET?

 

[mike49504]

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

 

[Perry Babin]

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.

 

[mike49504]

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 ??

 

[Perry Babin]

PS FETs?

The attached photo is from a BXi2010. The 2006 is the same so I'm guessing that yours is similar.

 

[mike49504]

cool thank you Thats what i needed to know.

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

Correct?

 

[Perry Babin]

Q7/7A are KTC3228
Q8/8A are KTA1275

 

[mike49504]

Do you know where i can find the 3228's?

 

[Perry Babin]

Original:
http://www.keccorp.com/data/databook/pdf/KTC/Eng/Ktc3228.pdf

Sub:
http://www.fairchildsemi.com/ds/KS/KSC2383.pdf

Mouser: 512-KSC2383YTA

I don't have a source for the originals but the transistor above should be a good sub.

 

[archie21]

Hey mike i know this is an old thread but did you get this amp working? Im curious because its mine and youve had it for this whole time and refuse to answer your phone... i just want it back working or not. Also my buddies RAA1000. THANKS

 

[archie21]

I know you have read this mike i just want our amps back. I dont care if you cant/wont fix them i just would appreciate it if you would quit ignoring me/us...