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Amp automatically goes to protection mode

I recently hooked up my SoundStorm D400.2 amp and it wouldnt work. Every time i plug in my RCA jacks it went to protection. I had it hooked in there before and didnt have a problem. I'm stumped and dont know what to do. PLEASE HELP!

Posted by Troy Shafer on

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  • Troy Shafer Sep 30, 2006

    I forgot to add that it does this whether my remote turn-on is connected or not.

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2 Answers

Anonymous

Clean chassie ground just like battery terminals

Posted on May 14, 2007

Anonymous

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  • 6 Answers

Bad Ground.

Posted on Nov 02, 2006

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Gos in to protection mode as soon as you aplly power
Check for a short circuit in the wiring of the output speakers or a shorted speaker voice coil, also check for correct voltage to the POWER AMP while in use... when an AMP goes in protective mode this means two things A SHORTED OUTPUT or A INCORRECT VOLTAGE TO THE POWER AMP. if all the above is OK than the AMP is defective. are you using correct speakers OHMAGE 4, 6 8ohms??? according to your AMP.

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Should the amplifier go into protect mode, simply disconnect all RCA and speaker leads, while keeping +12 volt, power ground and remote leads connected.

1. Now turn the amplifier back on, and if the diagnostic LED lights, the amplifier has an internal fault.

2. If not, plug the RCA cables back, and reset the amplifier. If it goes into diagnostic now, the fault lies in the input, either with bad cables or source unit.

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Amp went to protect mode and will not reset to green.
Be sure the rca's are not getting severly pinched or worse you drilled a screw into them.

Second make sure your connecting the RCA's to the
1. OUTPUT of the radio
2. INPUT of the amp

if you connect any other way its wrong and could damage both radio and amp especially you screw into the RCA's your sending 12 AC Volts to ground.
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FUC% the protection light
i had a similar problem with my amp (although a different brand). Check you ground connection and make sure it's not grounded to metal with paint covering it. This is NOT a solid ground connection. You must remove the paint then reconnect it. Without a solid connection to ground, it cant run for very long without going into protection mode. Hope this helps
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The amp probably has shorted outputs. Do you want to try to troubleshoot it and repair it yourself?
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