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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1 Answer

I can't seem to find the remote wire for the RCA leads that go to my amp


  • The remote wire connects the head unit/deck and runs to the amp. You have to supply this wire. It does not have to be to thick of gauge like the power and ground wire.
  • The RCA connects from the deck to the amp if your deck has them. All the newer decks do but not all decks have a spot for RCA cables.
  • The two are different. The RCA cables are what sends the audio signal to the amp for the speakers. The remote wire sends a power feed signal that turns the amp on when the deck is turned on. It's basically the on/off "switch" to the amp activated by the deck being turned on/off.

  • Thanks for using FixYa.


Regards, Tony

Jun 18, 2011 | Car Audio & Video

1 Answer

All the power is there but will not create sound


Assuming you are talking about an aftermarket amp, sounds like your input signal isn't working correctly. You might have a bad set of RCA wires. You might have a bad RCA connection on the amp or at the radio also. One way to test this would be to get another set of RCA wires and just hook them up. Just pull the radio out and temporarily connect one side to radio and the other to the amp. If it works, then pull the old ones out and put the new ones in. A question that I have is this, are there any lights coming on on the amp? You might have good power and ground, but the remote wire might not be sending the signal to tell the amp to turn on.

Apr 21, 2011 | Car Audio & Video

2 Answers

I have an old kenwood kac-801. It doesn't have rca outputs. i have an output adapter but the wire colors are different. i need the scematics or someones help


take one of your door speakers and check the wireing on the speaker and hook up your wires to those wires on your raido

May 12, 2010 | Car Audio & Video

1 Answer

No sound from speakers, but there is power to amp


make sure the power wire and the remote wire have voltage. at least 12 volts. make sure the ground wire is good and has a good solid ground. after that make sure the rca cables are getting signal from the radio. if you have a small speaker or tweeter you can touch the wires from the speaker to the rca cables and it should play music very quietly. meter the subs and make sure theyre ok and not shorted or bad. if all that checks out good.... the amp is probably bad. start with all the simple stuff and work youre way up. if the amp has good power and signal and good speakers then the only thing thats left is the amp. good luck

Dec 29, 2009 | MTX X702 Car Amp

2 Answers

I am trying to hook up an ancient Kenwood KAC-801 amplifier. The original input cable has 1 red, 1 black, then another smaller awg white (1) sharing a common with another small awg yellow. Applying power...


Yes, keep in mind that the amps have a constant power (the large red wire) and need a remote signal to tell them when to turn on/off. This wire connect to a switched 12v from the ignition or radio blue wire (if aftermarket)

Nov 01, 2009 | Kenwood KAC-9102D Car Audio Amplifier

1 Answer

No sound coming from subs


You definitely NEED a source signal for the amplifier to amplify!

You should have a Main Power Wire, a Ground Wire, A Remote Turn on Wire, and RCA cables (or hi level speaker wires if your amplifier has them)
and the speaker wires to the subwoofers.

Thanks for using FixYA - a 4 THUMBS rating is appreciated for answering your FREE question.

Aug 30, 2009 | Kenwood Car Audio & Video

2 Answers

Need wireing diagram for instalation


Hello bulldogwjm,

You can download the Kenwood manual here:

http://www.kenwoodusa.com/Support/Car_Entertainment_Owners_Manuals/#_

Just select the model number from the dropdown and download it.

Hope this helps.

Apr 14, 2009 | Car Audio & Video

1 Answer

Ampilifers


Check the fuse in the amp.
If the fuse is good, make sure your remote wire (blue) is connected to the remote wire from your deck.
Is your ground connected?


Aug 19, 2008 | Rockford Fosgate Punch 800a2 Car Audio...

2 Answers

RCA Pre-Out Making Producing a Mumming and a Popping Sound.


the speakers hook to speaker wires not to any thing else no power no negative poles do you have a remote shut off switch connected to amp this would be important to cut off amp

when cut off amp if you still here the humming this can be an indicator of low power being produced by alternator alternators produce 14 anything below 12 would mean replacement of alternator

if alternator fine then you need to find new ground for amp and make sure you have a good ground for sterio this can be checked with a test light
to check a ground all you do is hook gator clip to power then touch test light end to ground on radio end light comes on got a good ground (make sure not to touch any other sterio wires just the ground wire while connected to power to check grounds)
if pulsing in test light on the ground means you have a bad ground
just disconnect move to better ground

check the amp ground the same way as decribed above

May 09, 2008 | Pioneer DEH-P3900MP CD Player

1 Answer

Amp won't put out sound


Hello, if you leave me your email I can send you the user manual for this amp. Best regards, Arpi

Apr 10, 2007 | Sony XM-SD22X Car Audio Amplifier

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