Question about Pioneer GM-7100M Car Audio Amplifier

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Have power good ground and remote wire has juice, no sound

Other then checking the rca's signal to the amp which i can't think of a way other than to plug in a boom box or something with rca inputs i don't know if i have an actual problem with my amp. the blue power light is on but is blinking, which i'm not sure if that's what it usually does. is there any reset button on these or may some internal compnent be bad from something like an overheat or water exposure that i don't know of.

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  • j4rose Mar 26, 2009

    i have power to the amp, all connections are good, the blue light is flashing but yet works but at a low volume, if i go to loud then it goes out agian

  • Anonymous May 08, 2009

    is there an easier way?

  • Perry Babin May 11, 2010

    If the amp is in protect mode, it probably has shorted output transistors. To eliminate other possible problems, do the following.



    With your multimeter set to DC volts, the black meter lead on the ground terminal of the amp (not on the point where the ground wire connected to the vehicle) and the head unit on (so the amp will have remote voltage applied), touch the red lead alternately to the B+ and remote terminals of the amp. If the voltage is below ~11 volts, you need to check the wiring feeding whichever line is too low.



    If the voltage remains near or above 12v, disconnect all speaker wires from the speaker terminals of the amp and disconnect signal cables from the amp. If it powers up, the wiring needs to be checked. If it still shuts down, the amp almost certainly has shorted output transistors and will need to be repaired.

  • King3132 May 11, 2010

    what is amp hooked up too? subs or 6x9

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No you can buy a 5 dollar volt meter at walmart or autozone to test to see if your rca wires are outputing any signal/ (volts) that will tell you if its the rca wires or head unit!


thanks

erik

Posted on Feb 27, 2009

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