Kicker KX amp problems???? - diyAudio
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Old 15th December 2012, 07:09 PM   #1
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Default Kicker KX amp problems????

I have a kicker kx850.2 and kx350.4 and both worked fine one day but the next they just wouldn't turn on at all. So I tested all my wiring and it was fine. I took out the amps and tested them in four other cars and they still would not turn on. They just kept on blowing the fuses and thats all that happened. Opened up and nothing looks blown or burnt and everything seems fine. Any sugestions?
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Old 15th December 2012, 07:24 PM   #2
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Did they blow the fuse before remote voltage was applied?
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Old 15th December 2012, 09:21 PM   #3
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The fuses blew after I turn on my radio. All you hear is a pop and then nothing and then smoke from the fuses (on the 350.4 its 2 20 amp fuses and on the 850.2 its 3 40 amp fuses)
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Old 15th December 2012, 09:35 PM   #4
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That's generally due to shorted output transistors.
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Old 15th December 2012, 09:49 PM   #5
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Am I able to change the transistors myself? I know a lot about car audio and how to diagnose amps. If so, what transistors do I use?
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Old 15th December 2012, 10:19 PM   #6
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If you're new to repairing amplifiers, you should read the basic amp repair page (link in sig line below). Read all of it, even the parts that you feel are irrelevant. If you still have questions, let us know.
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Old 15th December 2012, 10:29 PM   #7
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I know a lot of stuff about amp repair etc and I am an expert at soldering. What transistors do I use to replace the ones in there now?
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Old 15th December 2012, 10:48 PM   #8
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You'll use exact replacements.
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Old 16th December 2012, 03:25 AM   #9
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ok i went to radio shack and bought the same transistors (matched up the numbers) and changed them. It worked fine for about an hour and then same thing happening now. Except now the fuses are blowing before I put in the remote wire. What do i do???
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Old 16th December 2012, 06:37 AM   #10
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What were the part numbers on the original transistors that you replaced?
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