Question about Sony XM-752EQX Car Audio Amplifier

1 Answer

No Sound/ lights flashing on Amp

I have a Sony XM-752EQX amp that has all of a sudden quit working. I get no sound from the speakers. The unit powers up with the power light coming on. In addition to that the over current, offset, and thermal lights all light up green and flash continually in some sort of a coded pattern. I can't find anything to tell me what the flashing indicates. They all three flash in the same pattern together. Any suggestions as to what is wrong?

Posted by on

1 Answer

  • Level 1:

    An expert who has achieved level 1.


    An expert who has answered 20 questions.


    An expert that hasĀ over 10 points.


    An expert whose answer gotĀ voted for 2 times.

  • Contributor
  • 48 Answers
Re: No Sound/ lights flashing on Amp

Disconnect your subs from the amp. If the lights go out then your sub is blown and is putting the amp into protect. If the lights keep flashing even with the subs disconnected than the Amp is toast.

Posted on Jul 14, 2007

Add Your Answer

0 characters

Uploading: 0%


Complete. Click "Add" to insert your video. Add


3 Points

Related Questions:

1 Answer

I have a Xplod XM-554ZR Car Amp and the green light is blinking it worked just befor and now i have no sound

The amp is in protection. Disconnect any speaker from it, then turn it back on, if it's not flashing, check your speakers with a meter and check speaker wires for shorts. If it's still flashing, you've blown the protection circuit and it needs to be replaced or repaired. Hope this helps

Jun 11, 2009 | Sony Xplod XM-554ZR Car Audio Amplifier

1 Answer

Amp often decides to not work.


Apr 14, 2009 | Sony Xplod XM-1652Z Car Audio Amplifier

1 Answer

Problems with Sony XM-752EQX Car Audio Amplifier

does the amp power on? usually if you cant get any power to an amp, its a problem with the ground connection. did you shave the paint off from the area where the ground wire touches the metal of your cat?

Mar 24, 2009 | Sony XM-752EQX Car Audio Amplifier

1 Answer

My amp quit working while driving down the road.

Keep Trying To Find A Differend Ground Place, I Had This Problem In My Neon

Dec 31, 2008 | Sony XM-752EQX Car Audio Amplifier

1 Answer

XM-552HX ofside led turn yellow

You may have an issue with the impedence of the woofers causing the unit to go into protection mode. Make sure that the woofers are no lower than 2 ohms at the amp. This can be done with a voltmeter to check. You are better off running the woofers at 4 ohms if possible. If you disconnect the speaker wire from the amp, does the yellow light still come on? If so, then there may be a problem with the amp.

Sep 26, 2008 | Sony XM-552HX Car Audio Amplifier

1 Answer

Amp went into protect, but front speakers sound distorted too

If the amp still goes into protect mode, the easiest thing to do is disconnect the RCA cables from the amp and see if still goes into protect mode (after turning off/on). If it does, the issue lies in the amp or the wiring to/from the amp (most likely case). Check to make sure no speaker wires came loose and touched +12V or ground (car body). From the sound of it, my guess is something internal to the amp died and will need repair.

Mar 22, 2008 | Car Amplifiers

1 Answer

Sony XM-2200GTX...Power, Green Light, All OK, No Sound!

Sony generally drives their power light from a source that does not rely on the amplifier's switching power supply. This means that it's not a good indicator as to the health of the amplifier.


As long as you have B+ and remote voltage, it will light up. Since you've tested the speaker and the signal source, I think the amplifier is likely defective.

Oct 17, 2007 | Sony XM-2200GTX Car Audio Amplifier

1 Answer

Sony XM-2100GTX Car Audio Amplifier sound but very low

If there is sufficient voltage at the amp, you may have blown the woofer. If you have another speaker, connect it to the amplifier to see if it plays normally. If not, the amplifier may have failed. Let me know what you find.

Oct 05, 2007 | Sony XM-2100GTX Car Audio Amplifier

Not finding what you are looking for?
Car Amplifiers Logo

Related Topics:

382 people viewed this question

Ask a Question

Usually answered in minutes!

Top Sony Car Amplifiers Experts

Tygh Duval
Tygh Duval

Level 2 Expert

290 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17129 Answers


Level 3 Expert

56925 Answers

Are you a Sony Car Amplifier Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides