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When I hook power to my amp the protect light comes on.

The amp worked fine when it was taken out of my car. Bet when I tryed to put it back in my car the protect light came on even with no speakers hooked up. The amp is a memphis 16-st1500D. I have checked all the fuses, the power wire, remote, and the ground. I don't know what else to try and the amp cost too much to just give up on it and buy a new one.

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When connecting or disconnecting 12v power dont let the screwdriver touch the screw in terminal and side of amp at same time it causes a short in amp send it in to the factory or it could be the internal battery is burnt out from crankin it to loud

Posted on May 22, 2009

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If it is not turning on your problem is it is not getting power. Check your fuses. The reason an amp goes into protect mode is usually because the subs are not wired up right. Make sure your fuses are good, you have a good ground, and make sure your amp turn on wire didn't come loose when you were putting the deck back in. As for the amp going into protect you probably wired the subs down to too few ohms and the amp you have can't handle it. Try hooking the subs up straight w/o bridgeing them and turn it up to see if it works. If you don't have problems with it then you wired your subs wrong.

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yes make sure there both connected properly, check the fuses, the protection light usualy comes on when there is too much power and the amp protects itself from blowing

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Try disconnecting everything but the power connections. If the protection light still comes on, then there's a problem in the amp. If it goes out, then there's a problem elsewhere. In that case, hook up one speaker cable at a time and power on. If the protection light comes on, then either that speaker is bad, or you've got too many speakers connected to that one amp output. Too many speakers connected together can cause an overload and trigger the protection circuitry, or worse, blow out something out.

Hope this helps, and please rate my advice.
Thank you, and good luck!!

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