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Old 11th May 2013, 01:19 AM   #1
diyAudio Member
Join Date: May 2013
Default JL Audio 500/1 V1 always on


I have a Jl Audio 500/1 V1 that play fine but is always on, even with no remote turn on input signal. It turn on just with the +12v and gnd wires.

Please help me to find the faulty part. Thanks.
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Old 11th May 2013, 02:16 AM   #2
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Join Date: May 2010
Location: Washington State
I would be checking the pwm chip and the comparator if used, I am not familiar with these.

I had a Rockford amp do this one time and it was a defective LM339D comparator.
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