Question about Sony Xplod XM-554ZR Car Audio Amplifier

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I have a sony XM 554ZR 600 watt amp and the power protect light goes from green to red almost immediately after I turn it on. Any idea whats wrong?

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  • tejas rathod Feb 22, 2008

    I have a sony XM 554ZR 600 watt amp and the power protect light goes
    from green to red almost immediately after I turn it on. so what can i do now??

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They go into protect for several reasons. Unless you are a trained technician you should not try to repair it yourself. It may have a blown channel. Disconnect the speakers and try turing it on again. If it still goes into protect you have a serious problem. If it does not go into protect, you may just have a bad speaker, or have the impeadance too low for that amp. The smartest thing to do would be to take it to a repair center and have them test it to find out if the problem is in the amp or in the wiring/speakers.

Posted on Jun 16, 2008

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I had a few sony amps, and they don't do well as far as i am concerned. I have experienced them doing the same thing for no apparent reason. One minute they are working fine and the next, they are done. What is happening is that the mosfets are burning out inside the amp which causes them to go into protect mode. Make sure you go by the specs on that specific amp. Usually most amps don't go under 2 ohms stereo and 4 ohms mono. A lot of people start to experiment and notice if they hook-up a certain way, they produce a lot more bass. Sometimes that few minutes of great bass burns out a mosfet or two which kills the amp.

Posted on Mar 06, 2008

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I have a sony XM 554ZR 600 watt amp and the power protect light goes from green to red almost immediately after I turn it on. so what can i do in this problem ???

Posted on Feb 22, 2008

  • tejas rathod Feb 22, 2008

    how can i fix this ???

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It sounds like you have a bad ground make sure its on the froame or body and make sure any rust or paint is sanded or scraped off

Posted on Feb 09, 2008

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SOURCE: red light

no i think the subs are blown because subs blown send transitor sound back to the amp

Posted on Apr 17, 2009

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1 Answer

I just got a sony xplod 1000 watt amp i got everything hooked up and when i turned the key the power light chaned from green to red. i check over the amp again and again, i cant find any thing wrong........


Try disconecting all speakers from the amp, turn it on after and if it stays on red it sounds like it had kicked the bucket. if it stays green start from their and check all of your wires for shorts (speaker wires) again. hope this helps...

May 08, 2010 | Sony Xplod XM-554ZR Car Audio Amplifier

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Xplod XM-554ZR Car Audio Amplifier: powr/protect light comes on red not green...


Hi, disconnect all speakers from unit and try again - if red light still shows then your amp has died.
If the light goes green, then start testing for shorted speaker/wiring. This includes speaker wiring to vehicle shorts - there should be an o/c reading on your meter

May 05, 2010 | Sony Xplod XM-554ZR Car Audio Amplifier

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Power Protection Light Will Not Switch Back to Green


Disconnect all speakers, then turn the amp on. If there is no internal problem with the amp, it will go green. If it does go green, reconnect your speakers one at a time with the amp off then turn it on. when you connect the speaker that's causing the problem, the amp will go into protection. At this point, it's one of two things, a bad speaker wire (screw thru it or touching another terminal) or a bad speaker(burnt voice coil) to test that wire, disconnect the wire at the speaker and turn on the amp, if it's still green, all's well in the wire department. Meter the speaker with a multimeter on resistance, if it's blown the meter will read 1.... If you don't have a meter, connect the speaker that's having the problem to the other channel and test again, if it goes into protection, you've got your answer. Bad speaker. Hope this helps

Apr 14, 2009 | Sony Xplod XM-554ZR Car Audio Amplifier

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Hi i have a 600 watt sony xplod amp model xm-554zr and it recently stopped working. when i turn my car on the amp turns on but only for a sec then the protection light comes on, on the amp and it wont...


sounds like maybe a speaker short, try unhooking your speakers and then powering up your amp, if it then powers up with the speakers unhooked try hooking up each speaker one by one untill the amp goes back into protection and then you have your bad speaker.

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there are two nobs on the back of the amp they have to be turned inorder to ajust the woffer vol. make sher its not in power safe mode that will be a red light insted of a green one

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First off, according to the manual, the protect light should be green. That's normal operation. If it is red, that's a problem.

If it does go red, disconnect all of the wiring to the amp except the +12V and ground. Short the remote connection to the +12V to force the amp on. If the protect light still lights red, the issue is inside the amp and will need repair. If the issue goes away, try reconnecting one wire at a time until the protect light goes red again.

Mar 23, 2008 | Sony Xplod XM-554ZR Car Audio Amplifier

4 Answers

Red light


something is shorted in the circuit, or your subs. unhook the subs first and try it again, if it is still in protect then it is most likely the output transistors.

Feb 22, 2008 | Sony Xplod XM-554ZR Car Audio Amplifier

1 Answer

Sony xplod xm-554zr amp


try disconecting ur battary for 2 min and try it again

Jan 18, 2008 | Sony Xplod XM-554ZR Car Audio Amplifier

1 Answer

Car amps


important is to hav correct wires and groud cable...

Dec 29, 2007 | Sony Xplod XM-554ZR Car Audio Amplifier

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