Question about JBL GTO75.2 Car Audio Amplifier

2 Answers

No audio-amp protect light come on then went

Hi i bought an amp and sub package a few weeks ago and i was testing it out the other day and pumped it a bit and all of sudden the sound wentt there was no bass. so i checkd the amp and the protect light was on. then a few hours later the protect light was on while the power (blue) light was flashing then it stopped flashing. the next morning i had a check and there was no protect light or no power light :S im confused i dont know whats wrong its hooked up right and the wiring is fine (new wiring kit) so i dont know what i could be.help needed plz....

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  • reeder07 Jan 07, 2008

    Hi i have the problem that i have a new wiring kit and amp JBl GTO75.2. But the protect light flashes on and off the power light comes on the the protect light and one of the speakers crackels ,even when the car is turned off. i've checked all the conections .I'm Stuck please Help!!i (Car is bmw 3 series).

  • jblaudio May 21, 2008

    driving down the the road my amp just went off and the protection mode is always on

  • drewbritton0
    drewbritton0 Jul 06, 2012

    its caused buy sweating no matter where u put it its always going to sweet all jbl amps do you have a bridge inside your amp that has corroded and broke apart an easy fix mine done the same thing but i took the bridge peace out of an old tv i had for parts i solder it in and it works fine hope it helps u email me for help later

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2 Answers

Check your remote wire for poor connection

Posted on Aug 22, 2008

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  • Master
  • 631 Answers

You need to check the DC voltage across the B+ and ground terminals. You also need to check the DC voltage across the remote and ground terminals. If the voltage is less than 11 volts, you need to check the B+ supply and remote wiring for breaks or open fuses. You should also check the ground connection to confirm that it's not loose.

 

If the voltage is OK, the output transistors are likely shorted.

Posted on Oct 22, 2007

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