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.
Re: When I hook power to my amp the protect light comes...
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
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this is caused by inproper wiring from the speakers/subs to the amplifier.. an amp will still put out power to subs and speakers when it's wired improperly but it won't last for very long doing it... 6 months is longer than usual....
REMOVE THE RCA INPUTS AND DISCONNECT THE SPEAKERS, THEN POWER THE AMPLIFIER UP WITH THIS NO INPUT, NO SPEAKER LOAD CONDITION. IF IT STILL GOES INTO PROTECTION AND YOU HAVE VERIFIED THAT THE POSITIVE AND ESPECIALLY THE GROUND CONNECTIONS, ALONG WITH THE REMOTE CONNECTIONS ARE 100%, THEN THE AMPLIFIER WILL NEED TO BE SERVICED. KEEP IN MIND, THAT DURING THE INITIAL TURN ON OF THE AMPLIFIER, THEY SOMETIMES WILL ILLUMINATE THE PROTECTION LIGHT WHILE STABILIZING THE POWER SUPPLY AND OUTPUTS, BUT AFTER THAT THEY SHOULD SHOW NORMAL POWER UP. IF YOU GET IT TO POWER UP FINE, THEN RECONNECT THE SPEAKERS AND IF STILL OK, THE RECONNECT THE RCA'S. IF IT IS STILL POWERED UP, THEN START TO TURN UP THE MUSIC. IF IT IS STILL POWERED UP AND NO MUSIC, THEN CHECK THAT YOU DEFINITELY HAVE A PROPER SIGNAL COMING FROM THE RADIO. LET ME KNOW IF YOU NEED FURTHER ASSISTANCE.....V
i wish i can chat to you live so i can ask you qestions about your amp but to figure out what section of the amp might be fried it could be the power supply section could be the out put section or the in put section but i would try process of elimulation try unplugging your rca jacks and your subs unhook to your amp just the power hook up and try powering it but if the protection light steel comes on then try to remeber the last time your amp was working good and playing your subs was your amp getting hot if so you probaly fried your out put chips and not telling what else next question was you just hooking your amp up in your car and acually touch one of the power wire to the ground on your amp this happen to my friend and fried the power circuit relay chip on the power supply thats all the advice i can give but usually when the protection light comes on and you got every thing hook up right something fried
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.
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!!
Check the wiring between the sub and the amplifier. That's seems to be the only thing left that could cause a problem. If it's shorted to ground or pinched so the conductors are shorted together, it could cause the symptoms you listed.