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How to fix my amer.pro1000watt amp which has a burnt fuse an doesnt put out music

My amp.was playing good until one off my bass speakers wire touched something an sparked the green light is stil on put there is no noise going to my mids speakers or my bass speakers am wondering how i can i fix this problem its a american pro vs-2043 1000watts 4ch amplifier i would really appriciate if you could help wit this problem

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Re: how to fix my amer.pro1000watt amp which has a burnt...

You blew the output transistors. They all need to be replaced. Check this for more info:

Posted on Aug 17, 2006

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Can anyone help

What size is the amp and how many watts is the speaker(s) you have it ran too? If your speakers are trying to pull too much power from the amp it will turn itself into protect mode to keep from blowing a fuse as well as if you are pushing to many watts into small small speakers it will do the same to protect from blowing the speakers I would recommend turning the settings on the amp down slightly and then trying it out also make sure your wires arnt crossed adjusting the setting as it plays is the easiest way to fix the problem also make sure the bass isn't all the way up on your head unit

Jul 12, 2013 | Car Amplifiers

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I wanna supplied my Amplifier Lanzar MNX 250 with an 12V - 30 Ohm battery, but the led of my amplifier is red and my speaker doesn't play music. How can I fix the "protect mode" in which the...

  1. The battery is 12 volts and Ohms has nothing to do with your amp installation.
  2. Was the amp running and got hot? Many times an amp will go into "thermal mode" when used for an extended amount of time and need to cool down but I assume if you are trying to hook it up you were not using it.
  3. You need to check the ground wire real well. A loose ground will cause protect mode.
  4. Recheck the speaker wires and their connections. If they cross this to can cause protection mode.
  5. This is a 4 Ohm amp, are your speakers 4 ohm or lower> If not then you may be running to low of a load to your amplifier.
  6. I always remove everything from the amp first and power it on and then add wires and see where which connection throws the amp into power mode.
  7. Check the fuse as well but if the LED is on chances are your fuse is good.
  8. If you check all of the items I listed and the amp still goes into protect mode then your amp is bad.

Regards, Tony

May 05, 2011 | Lanzar MNX250 2Channel Car Amp

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My amp blew the 20 amp fuses. Replaced and they blew as soon as the radio kicked in. Took the back off to look for any burnt connections or blown open/expanded capacitors or resistors. It smells like...

Remove all the wires from the amp including the remote turn on wire. Once you do that, after about 30 seconds the amp will reset. Hook the power up first, then the ground then the remote. Turn the unit on and check for power WITHOUT the speakers hooked up. If you get no power by now it's a good chance that the amp is cooked. If you do get power, try hoking up your speakers first on one channel then the other channel and then bridged. If it cuts out or off when you touch the speaker wires to one channel or the other, then that channel is no good. Hope this helps.

Mar 17, 2011 | Kenwood KAC-728S Car Audio Amplifier

1 Answer

Amp was playing fine. Was unhooking speaker and accidently touched the remote bass plug on amp. One speaker was still plugged in and playing while this happened. Now when I hook up the speaker all I get...

Maybe, but you would need to take it to a stereo repair shop. If a wire is burned out or a small component is blown, it can potentially be replaced. May be cheap and easy, or may be too expensive to repair for the cost of the amp.

Mar 10, 2011 | Rockford Fosgate T15001BDCP Car Amp

2 Answers

Amp is connected to speakers but the volume coming out of the speakers is very very quiet. Speakers have been tested seperately and are known to work. Have turned the input sensitivity to max, this makes...

sounds like you need to turn up your gain and bass. while amp is on and your favourite music playing, turn up the diles on your amp until you get the sound you want one by one.

Feb 28, 2011 | Kenwood KAC-529S Car Audio Amplifier

2 Answers

Why does my KAC-8404 cut off at high volume bass?

amp 101

1/0 wire to the amp or the amps will loose power

check the connections mainly the negative

wiggle the wires see if you get a cut out or not

a cap will help you give constant power to the amp and not allow them to drain on long bass notes

hope this helps

Dec 26, 2008 | Alpine PDX-1.1000 1000W x 1 Car Amplifier...

1 Answer

500/1 amp turns on, but small ugly bass comes out speakers

Heat sink is jacked!!! Burned it out. Replace it or send it away to get fixed.... check the pricin on it sometimes cost alot almost as much as new amp....

Nov 04, 2008 | Jl Audio 500/1 Car Audio Amplifier

1 Answer

Powers isnt turning on but everythings hooked up?

Check the fuses. If the fuse is bad the amp's power supply is burnt. If the red light stays red and never goes green then your amp is in protect mode and the output section is burnt.To test for rem. problem just use a jumper wire (paper clip... or whatever)to jump from +12v power to rem. If rem. wire has no voltage when your radio is turned on that will make your amp come on. then look for the fuse in the rem. line. Good luck !


Oct 03, 2008 | Car Amplifiers

2 Answers

Negative speaker output touched chasis of amp.

check all fuses on the unit, pull them all.
look for a way of resetting the amp.


that way you wont short a screw driver across the terminals on to the chasis.

Dec 11, 2007 | Alpine MRD-M301 Car Audio Amplifier

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