Question about Pioneer GM-5000T Car Audio Amplifier

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Always blows fuses

Constantly the amp has been blowing fuses within a second of putting a new one in, i had gone threw 3 fuses within about a minute, as soon as i put in the fuse it blows, i have checked that the amp is grounded correctly and that the power lead hasnt been damaged anywhere, so theres is nothing i cant that will be causing it to short out. which has lead me to think that there is something wrong internally in the amp

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  • 432 Answers

I would get a volt/ohm/continuity meter to test the connections. You have a short somewhere. You can take it Car Auto or Tweeter and they can check it for you. Some of these places charge a $35.00 diagnostic fee. If you have a schematic diagram, you can test where the short might be.

Posted on Apr 09, 2008

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I have a Kenwood 1800wat amp with to 10" Sony kickers, I was driving to my new town when all of a sudden the subs stopped working. I reached around and pulled 1 off 2 fuses were blown and it was a 40amp...


If the fuse should blow up; there might be a reason. Shorted component at the power amplifier circuit board of the sub-woofer amp. It will be best to contact any service technician to check the set. Never insert a fuse and switch ON the set, till the fault has been detected and rectified. It might make things worse.
If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/

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its probably something lose inside ur amp that causing the amp to ground out ur fuses every time

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Fuses blowing


It may not be your amp at all, disconnect the power wire from the amp and then try a new fuse. If it still blows you have the power wire grounding out somewhere, if it doesn't then it would have to be the amp.

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Repair service for AG1000 Zapco Amp.


Is it blowing the three 30 amp on-board fuses?

To have 3 speakers bridged, each speaker must have at least a 12 ohm impedance (assuming that all speakers are connected in parallel). If you're running a load lower than 4 ohms (mono), the amp will likely fail.

The fuses don't blow right away because they are cold at first. As they heat up, they can blow more easily (even though the current draw hasn't increased).

Aug 10, 2008 | Car Amplifiers

2 Answers

Blowing fuses


Here are some answers:

1. Make sure your amp does not have a higher amp rating then the fuse, For example, an 18 amp amplifier will blow an 15 amp fuse, so connect it to a 20 amp fuse

2. you have a connection issue, where something is shorting out

3. you are pushing the amp or car to it's limit with how loud you put it, and thus blowing it, fixed by getting a more powerful amp and a better fuse.

4. or there is something very wrong and cannot help you and you would have to bring it into a shop.

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1 Answer

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somehow, DC car voltage has gotten to the speaker outputs of your amp! your fuses are saving your speakers from meltdown. your amp has melted down. toss it after checking with ohmeter as follows: disconnect amp completely. red wire from ohmmeter to +12Vin. black wire to SPK+. if ohms are anything below 1000 ohms, then toss it. An electrical short is equivalent to flooding your entire house with a leaky faucet. No telling what that rapid current will encounter along the amplifier section. you could get lucky and find all power MOSFETS have shorted and replace them. good luck.

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1 Answer

Car Amp keeps blowing fuses


The reason why fuses blow is that the current is too much. Is the fuse rating according to the specs ? If yes then ... One or more output power transistor (or audio power IC) may be shorted. have it checked before replacing another fuse as this might cause more damage.

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1 Answer

Blown fuses


I used to have one of those amps also (nice amp btw) Did you try another fuse of the same size?
Is it blowing fuses everytime you put one in or did it just blow that one fuse ?
Is the conection on the battery solid and clean of corrosion build up? Because that is a good amp and if wired properly shouldnt blow out or anything and so if the speaker is not blown then maybe connection is weak somewhere? I would try disconnecting the speakers from it and try a new fuse and if it does not blow the new fuse than amp is ok? and if it does blow the new fuse right away then there must be a short somewhere in the wire or the amp. then disconnect the fuse again and reconnect the speakers and if the fuse blows with the speakers connected but doesnt blow with them disconnected then you know it is a blown speaker causing the problem.

Just currious but what size fuse do you have connected at the battery?

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