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timwebb 13th July 2010 06:06 AM

HIFONICS bxi 1606d
ok i have another one of these,the power supply is shot. what resistors and mofets would be good?
i read on another thread 47 ohms and IRFP064N just need to be sure thanks!

Perry Babin 13th July 2010 08:45 AM

What were the originals?

timwebb 13th July 2010 09:03 AM

FQP65N06 are the originals and 47ohm resistors

Perry Babin 13th July 2010 09:23 AM


Mouser has the original parts.

The original is in a TO-220 package. The IRFP064 is in the TO-247 package so they're not interchangeable. I think there are two versions of this amp.

Have you checked the outputs?

Does it use the HIP4080 audio driver IC?

timwebb 13th July 2010 03:50 PM

yea everything is burned on this amp and it uses the HIP4080 audio driver.

Perry Babin 13th July 2010 03:56 PM

If it uses the IRF3710 outputs, order the Z version (IRF3710Z). Also order a new 4080.

Check the low value resistors and the large diodes near the 4080.

timwebb 13th July 2010 04:07 PM

i have some 3205 on hand will that work of testing till the new ones come?

timwebb 13th July 2010 04:09 PM

1 Attachment(s)
here's the board

Perry Babin 13th July 2010 04:10 PM

If you're going to install the 3205s, you may as well leave them. This drive circuit can handle the load. If you have a scope, check the drive signal on the gate pads for the power supply FETs before installing any new FETs.

timwebb 13th July 2010 08:37 PM

is it common for an amp to have diodes cause all the ones in this amp is are gone

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