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Protect light on car audio amp wont come on green light is on

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If the Protect light is on, that would be bad, if the green lights on you've got power thru your amp, meaning you have a good connection

Posted on Oct 16, 2008

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1 Answer

Why my jl audio 1400d amplifier stays in protective mode?


Check for a speaker wire that come come of , Or a loose grond wire on the amp or where ever you have the ground wire connected two,

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What does the red and green light mean ???


red and green light? there is most likely a protection and a power light. The red I assume would either be a protection light or a clipping light signal. Does the amp kick off then these lights kick on red then to green?

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Xplod XM-554ZR Car Audio Amplifier: powr/protect light comes on red not green...


Hi, disconnect all speakers from unit and try again - if red light still shows then your amp has died.
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My amp is stuck on protect mode. what do i do? its a lightning audio. the green light is not on the only light is the red protect light


the amp will need to be repair because it has a fault that it is seeing internally. so not much you can do other than buy a new amp or get that one repair. probably cost effective to buy new. hope this help. good luck

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Red protection light wont turn 2 green no matter what so the amp wont work


Hello mcis43fan,

The protection circuit can be activated by shorted or grounded wiring or it can be caused by a defect in the amp itself.

First, disconnect all wires except power, ground and the remote turn-on lead and see if the amp powers up normally. If it still goes into protection, the amp is defective, most likely shorted outputs and needs repair or replacement. If the amp powers up normally, test the other wiring for shorts and grounds. You can reconnect them one at a time to determine which one is causing the problem.

Hope this helps.

Aug 06, 2009 | Sony Xplod XM-1652Z Car Audio Amplifier

1 Answer

Hooked up to a kicker L712. Worked fine now its in protection mode. When i turn it on the light is green for a second then turns red. It wont stay green. What should i do? Is it the circuit board?


perhaps you are pushing the amp to hard check that the gain control knob is not turned all the way up. This will cause the amp to overheat. If not that check all of the wiring to the amp for a possible short.

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1 Answer

Dub 2502 not in protect mode but not putting out


i dnt knowwat type of speaks u got but ifits low then it cud be tht u have too open up the second coil on ur speakers...dnt sound like the amp since its on & not in protect mode,other than tht i'll recheck the wiring

Apr 07, 2009 | AudioBahn DUB Mag Audio DUB2502 Car Audio...

1 Answer

Amp is in protect mode, green light is on.


If the amp is going into protect, it likely has shorted output transistors. To eliminate other possible causes, read through the following page.

Amp in protect mode - troubleshooting

Let me know if you have any other questions.

Nov 29, 2008 | Phase Linear UPA424CS Car Audio Amplifier

1 Answer

My amp wont work


The amp probably has shorted output transistors. To eliminate other possible causes, read through the following page:

Amp in Protect Mode - Troubleshooting

Let me know if you have any other questions.

Nov 24, 2008 | Jensen 100W x 4 Amplifier KA5 Car Audio...

1 Answer

How to change the Red Protect light to Green Power.


If the amp goes into protect mode, it's likely due to shorted output transistors. To eliminate other possible problems, read through the following page:

Amp in Protect Mode - Troubleshooting

If the problems are not with the wiring, follow the link at the bottom of the page to the Amplifier Repair Primer page.

Let me know if you have any other questions.

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