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Old 15th April 2011, 08:29 PM   #1
diyAudio Member
Join Date: Sep 2006
Default Xtant 1001D

Im working on this amp to try and get theese amps i have here back to thier owners before i stop the repair business for other people.


I replaced all of the outputs in this amp (irfz44's) and replaced the power supply fets.

When i power up the amp a blue light come ons for a few secs then a red led lights.

I have 1.49 volts on the output terminals. Any thoughts on where to check?
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Old 15th April 2011, 08:47 PM   #2
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Join Date: Nov 2003
Location: Louisiana
Were the outputs blown?

If so, did you replace the driver IC (HIP40..?)?
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Old 15th April 2011, 09:18 PM   #3
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Join Date: Sep 2006
Outputs were blown and wrong outputs were in the amp. (irfz48n) I replaced them with irfz44's (orginals) I also replaced the HIP4082 IPZ Chip . But if they are anything like the HIP4080's i could have a defective one not sure
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Old 15th April 2011, 09:22 PM   #4
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Join Date: Nov 2003
Location: Louisiana
I'd suggest that you pull the outputs so that you can confirm that all of the power supply voltages are present on the various ICs.
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Old 21st December 2013, 11:02 PM   #5
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Join Date: Sep 2012
Location: Mesa,AZ
Hi I have the same amp 1001dx when I try to power it up a blue light comes on for a few seconds then goes off also a power supply fet was blown ant advice
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