AQ2200 protection tripping - diyAudio
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Old 24th March 2012, 02:24 AM   #1
diyAudio Member
Join Date: Sep 2009
Location: Wisconsin
Default AQ2200 protection tripping

This amp will run fine for 10 minutes until the input signal is turned off or interrupted. When this happens the over current protection is tripped on the DWM1216 board. I have never had this before, thoughts?
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Old 25th March 2012, 01:50 PM   #2
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Join Date: Nov 2003
Location: Louisiana
Does it do it with no speakers connected?

Does it do it if you simply set the volume to zero?
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Old 26th March 2012, 04:13 AM   #3
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Join Date: Sep 2009
Location: Wisconsin
It will do it only when my scope is across the output/load. I ran it on my bench for over an without it tripping, as soon as I touched scope gnd protection tripped.
Going to install in my car and try to reproduce the failure.

rorrim eht ni kool
BK 1544 40Mhz scope.....Pyramid PS-26KX supply.....Tenma 72-380 Func. Generator
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Old 26th March 2012, 09:49 PM   #4
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Join Date: Nov 2003
Location: Louisiana
Is there any DC on the ground terminal?

Sorry, no mirror available.
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