Question about Alpine MRV-F540 Car Audio Amplifier

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Hi I have a MRD-M501 and MRV-F540 fitted in my car. The MRV-F540 doesnt seem to be working. Threre is only a blue light on the display.

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Posted on Jan 02, 2017

Duncan
  • 218 Answers

SOURCE: Over heating

Are you sure it is overheating? Maybe you have the wrong speaker load and it is reacting to that. Is the unit shutting off when it "over heats"? Are you bridging and how many speakers are you using in what configuration (series/parallel)? Since you have two "new" amps doing the same problem and neither fan is turning on then I think you have a hookup problem and not a fan problem. Since you say you are using a large gauge of power wire (I'll assume you have an adequate connection to the chassis/ground) then that leaves only the speaker loading. I think you need to fix this problem quick before it blows your amps though. Good luck.

Posted on Jun 18, 2007

Shuttle83
  • 1139 Answers

SOURCE: MRV-F540 Amp shuts off when turning music up

The amp may have defective components, but it is still salvageable. first of all lets discuss what is happening. The amp is cutting off because of excessive current flow. which means one or some of you components have become thermally sensative. You can find out which components they are by using a can of cool mist or any other component cooling spray. this will allow you to find the problem quickly. Now in addition to this you may have to forego the tricks and do some real troubleshooting. Get a schematic of the device and try to take voltage readings to see which components are at fault.

Posted on Sep 06, 2007

  • 2 Answers

SOURCE: alpine mrd-m501 amp

the subs cant handle all the power you got it set on turn off all the settings and then turn off your car and remove your face plate and then it should be ok. it does that because the subs cant handle the settings you might just have them a lil high 

Posted on Mar 17, 2009

  • 13 Answers

SOURCE: no sound on my alpine mrd m501

 No sound is produced. ? The output disable mode is turned on. ? Refer to the instructions at ?Output Disable Mode? to turn the output disable mode off.

Posted on Jun 10, 2009

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1 Answer

So I have two alp mrd 501 amps one in each car both amps shut down ( clips ) while driving I have rolled back the setting still happons ?


Well it sounds like the safety switch is turning on. Which means it turns off. If you could clarify that would be awesome and i'm sure i or someone else could answer you better

Mar 01, 2010 | Alpine MRD-M501 Car Audio Amplifier

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THAT USEUALLY MEANS UR AMP IS WAY 2 POWERFUL FOR UR SUBS

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I obtain recently a car amplifier model: mrv-f400 of alpine, i want information about the correct way to instal thanks


http://www.alpine-usa.com/US-en/support/support_search.php?modelname=MRV-F407

THE ABOVE LINK WILL DOWNLOAD A MANUAL FOR THE SIMILAR MRV-F407 AMPLIFIER. IF YOU WANT TO PURCHASE THE EXACT MANUAL, YOU CAN OBTAIN IT FROM PACIFIC COAST PARTS AT 800-421-5080 PART NUMBER=68P50958W56. IT IS AROUND $5.00 PLUS SHIPPING. LET ME KNOW IF YOU NEED FURTHER ASSISTANCE.....V

Nov 24, 2009 | Alpine MRV-F540 Car Audio Amplifier

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Hi i was just wondering if anyone could tell me what the max wattage is ?????


Hiya 50W RMS into 4 ohm per channel (X4) or 70Watt RMS into 2 ohm. The peak rating i think is about 150W

Jul 11, 2009 | Alpine MRV-F540 Car Audio Amplifier

1 Answer

My alpine MRD-M501 turns on, but on the display it reads ---A


turn off all the settings on the amp for (example, sub ,comp, lpf, etc put them all on the off position and then turn off your car remove your face plate and then try it agin it worked for me. but dont turn up the settings to loud the subs might nit be able to handle all the power thats y it does that 

Mar 09, 2009 | Alpine MRD-M501 Car Audio Amplifier

2 Answers

Alpine mrd-m501 amp


Disconnect the speaker wires from the amp, then try it again. If the error message doesn't appear, try connecting the speaker wires back to the amp one by one.

The error message is due to some sort of overcurrent in the amp. If the error does not go away when the speaker wires are disconnected, the issue is most likely with the amp itself and will need professional repair.

Mar 18, 2008 | Alpine MRD-M501 Car Audio Amplifier

1 Answer

MRV-F540 Amp shuts off when turning music up


The amp may have defective components, but it is still salvageable. first of all lets discuss what is happening. The amp is cutting off because of excessive current flow. which means one or some of you components have become thermally sensative. You can find out which components they are by using a can of cool mist or any other component cooling spray. this will allow you to find the problem quickly. Now in addition to this you may have to forego the tricks and do some real troubleshooting. Get a schematic of the device and try to take voltage readings to see which components are at fault.

May 16, 2007 | Alpine MRV-F540 Car Audio Amplifier

1 Answer

Car amp problem


make sure the front left wires arent shorting out if they are they could be causing the amp to overheat and shut down till`s its cooled ehough to restart

Apr 01, 2007 | Alpine MRV-F540 Car Audio Amplifier

1 Answer

Have no sound


More info needed. It's like asking how to completely disassemble a car and expecting us to do everything for you. Please take some time to do a bit of research on your part so that we can better assist you and not have to work hours to answer your question.

Sep 29, 2006 | Alpine MRD-M501 Car Audio Amplifier

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