Question about Alpine MRV-1507 Car Audio Amplifier

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Power and protect light blink red

I have know idea whats wrong with amp both protect and power light blink red.if u have any solutions to my problem please let me know i do fix them if i know whats wrong.thank you

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Disconect speaker wires from and amp and repower if light is still on disconnect RCA jacks and repower if protection is still on you have a solder jump inside your amp send it in for erepair to dealer or buy a new amp at dealer prices at www.godspeedaudioheaven.com

Posted on Feb 04, 2009

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Red protect light flashes continually. Whats wrong with my xs 600w


Does It blink as soon as you turn system on? First thing i would do is make sure everything is off, then unplug speak wires from amp then turn back on. If it doesnt blink then spk wires or sub(s) have a dead short somewhere. Let me know

Jun 12, 2016 | Car Audio & Video

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Protection light came on what cut off


Amp in Protection - Troubleshooting - Basic Car Audio ...

www.bcae1.com/.../troubleshootingbasicsampinprotect.htm
Some simply shut down and the power light will not illuminate when in protect mode. If the power light blinks then goes off, the amp is either going into protect ...

How do I fix my amp it keeps going into protection mode ...

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https://www.youtube.com/watch?v=DQ1bdsm6s2c
Apr 24, 2013 - Uploaded by Nathan West
My MTX 600xd amp light won't even come on. ... Red light comes on. ... one.. and some times it goes into protection... once I turn the car off...

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I have a sony xplod 1000 watt amp.ive had it hooked up for about 6 months it sounded great.this morning i started the truck up and wasnt working looked at it and my compassador was blinking.i hooked it up...


The Capacitor block was blinking because the device it was supplying a filtered DC voltage to was drawing a lot of current. Your amp has a fault somewhere, more than likely the power stage. Could be a shorted output transistor.

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1 Answer

Flashing red light


Hi,
When the power light blinks the set's protection circuits are causing the unit to shut off and blink. The series of blinks is an SOS signal that a servicer can decode to help diagnose the problem.

For those in areas other than in the US, I can't really say what the issue might be as the SOS patterns may be different for different countries. But, if you can find a service manual for your area you should be able to at least get an idea of what might have happened to it. There's no guarantee that what you read is the actual problem without further testing, however a solution which may work is press & hold the power switch on the TV -- that resets the switch..

psl rate my suggestion.

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if it's blinking green, nothing is wrong. it's just cooling. if it's blinking red and the lamp is off, the lamp door is open.

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Protect led light


It appears that the amp is going into protect mode. To eliminate external causes, read through the following page. Let me know if you have any other questions.

Amp in Protect Mode - Troubleshooting

Oct 10, 2008 | Car Audio & Video

1 Answer

Directed audio 800a amp the protection light keeps blinking


1. Check your grounds. (including grounds for your stereo)

2. Check to make sure the power cable you connected to your car battery is properly connected, and not coming into contact with anything metal.

3. Make sure you are using proper fuses.

4. Check your connection from your stereo to your amp, and your amp to your subs.

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Could be the power supply or output stage electrolytic capacitors.
Possibly breaking down/drying out inside.

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Amp Power LED Display blinks red and no sound


With your multimeter set to DC volts, the black meter lead on the ground terminal of the amp and the head unit on (so the amp will have remote voltage applied), touch the red lead alternately to the B+ and remote terminals of the amp. Does the voltage on either the B+ or remote pulse below ~11 volts when the LED flashes?

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1 Answer

Both green and red ligt or on my jensen ka3 i dont know what it means i had it working b4 i swaped my subs for some new ones and the amp dosent work now.i dont know if is because of the red light but i...


Generally, the power light is green and the protect light is red. If the protect light is on there could be a short in the wiring or there could be an internal fault in the amp.

Disconnect all speaker wires from the speaker terminals of the amp and disconnect signal cables from the amp. If it powers up, the wiring needs to be checked. If it still shuts down (goes into protection), the amp likely has blown output transistors.

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