Question about Power Acoustik LT-980/2 Car Audio Amplifier

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No audio and staying in protect mode - Power Acoustik LT-980/2 Car Audio Amplifier

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You have no audio because it's in protect mode, could have a short in the speaker connections or one of the speakers - try it with speaker wires disconnected at the amp and also with a different pair of known good 16 ohm speakers. If the protect mode light doesn't go out then you may have cooked a driver and it will need to go to a shop.

Posted on Jul 12, 2009

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Related Questions:

1 Answer

How do i take my Kenwood car stereo out of protect mode ?


There may be an internal short which will have to be repaired before the radio can be used.

May 25, 2016 | Kenwood Car Audio & Video

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Stay in protect mode very offen, but if the receiver start, he work well !


Check if the speaker cables have no loose cores touching the chassis of the receiver. Mostly this is the reason the receivers goes into protection mode.

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My kenwood is stuck completely in protect mode. I ve everything listed and it wont come out of it. So should i assume the unit has gone bad?

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Lightning Audio b2.3000.4 is in protect mode. i removed all speaks and conected the amp directly to the battery and it still stays in protect mode. what can i do to fix this problem?


  • Only a select few things can cause protect mode with the battery only connected.
  • An installation issue. Check the Power, Ground and Remote wires. Make sure non are shorting from one terminal to the other.
  • It is still overheated and has not had time to cool down from being in thermal protect mode.
  • The amp itself is touching metal. You always want something non conductive between the amp and where it is mounted, this includes the screws being used to anchor the amp. They should never touch the metal in the car either.
  • The final thing that can cause an amp to go into protect mode while only hooked to the battery is the amp itself is malfunctioning and or defective. You can try opening the amp and look for any black spots on the circuit board where an electrical component might have smoked up or blown and replace that part.

Regards, Tony

May 21, 2011 | Lightning Audio B2.300.4 Car Audio...

1 Answer

How do you reset the protection mode


The protection function has been activated because it has sensed an output load problem, turn receiver off and remove the speaker wires, this will reset the protection circuit. Now! turn the device on and turn the volume right down, if the protection mode stays off it indicates a short in the speaker wire or one of the speakers, but! if the protection circuit comes on with "the speakers and wires dis-connected" it means there is a short in the audio outputs in the receiver itself, this can only be rectified by having the parts replaced.

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Reciver is going to protection mode and sound turns off


is some speakers is defective, or not present (connected), check all cables

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Reference 1211a Car Audio Amplifier: stays in protection mode...


Has an internal issue, if you know how to use a ohm meter, check the resistance of the wire on the interior of the amp, also check the fuses, ground, and power wire clean up the ground wire where it is connected to the vehicle

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1 Answer

The indicator light on the amp is staying red in protection mode how do i get it out of protection mode?


Check your manual, sometimes you have to take it back in, depending on the protection. Sometimes you have to change up the fuse. Is there enough power going to the amp, or to much?

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1 Answer

It overheated, due to lack of ventilation. Now in protective mode


Disconnect all speakers at the receiver, if it stays on, post a comment and I can help you troubleshoot further. If it stays in "protect" it needs serviced. Hope this helps.

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Why does my amp stay in protect mode?


The most common reason an amplifier goes into or remains in protect mode is shorted output transistors. To eliminate other possible reasons for it to go into protect, read the following page.

Troubleshooting - Amp in Protect Mode

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