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Old 6th May 2012, 10:11 AM   #1
timwebb is offline timwebb  United States
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Default hifonics bxi 2000 brutus

im repairing one of these amps and it has fqp85n06 in the power supply with 22ohm gate resistors. iv'e never seen this one these amps. i used 47ohm resistors with irfz44 and they over heat. just want to make sure this amp is suppose to have 22ohm gate resistors.
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Old 7th May 2012, 03:08 AM   #2
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22 ohm gate resistors will not cause the Z44s to overheat. There is likely another problem.

How fast do they heat up?

What's the current draw when they heat up?
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Old 7th May 2012, 03:56 AM   #3
timwebb is offline timwebb  United States
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i just seen the drivers they were cracked. i couldn't see until i removed the board.
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Old 7th May 2012, 04:06 AM   #4
timwebb is offline timwebb  United States
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that was it. they were bad.
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