Alpine MRV-F540 Car Audio Amplifier Logo

Question about Alpine MRV-F540 Car Audio Amplifier

1 Answer

MRV-F540 Amp shuts off when turning music up

Have a alpine mrv-f540 that shuts off when you turn music volume up marginally, can hardly even turn the volume up without the amp shutting off. As well, the amp digital voltmeter display does not show up, just the blue power light, which turns red when the volume is turned up. Is this a fried amp? What are my options? Thanks.

Posted by Daniel Balcueva on

Ad

1 Answer

Anonymous

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Genius:

    An expert who has answered 1,000 questions.

  • Master
  • 1,139 Answers

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

Ad

Add Your Answer

×

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

0helpful
1answer
0helpful
1answer

Amp

I honestly don't have a solid answer for you. I can say check your fuses. Check your battery to amp wire. And also check your ground. Make sure the fuse on your amp is also not blown
0helpful
1answer

Alpine mrv-f345 cuts off when...

Yes sounds like your not getting enuff power from the battery could be your alternator you should have it tested. Also have you try'd a capacitor? I put one in my car and it stopped cutting out...
1helpful
1answer

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
1helpful
1answer

Amp keeps cutting on and off

Do you own a capaciter if not get one. If that dont help check all your wiring make sure it is the proper thickness and lengths.
0helpful
1answer

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
0helpful
1answer

Alpine mrv-f545 powers up but no power going to the channels

I suppose you checked all the usual suspects? Fuse, Ground, and Remote turn on?
Now if memory serves me isn't that an amp that has a digital display on the top? If so you have to scroll thru the menu items and see if it is on low pass or even off? The gains are tricky because they get louder with less dbs. but check the outputs.
if all else fails it's probalby bad.
0helpful
1answer

Amp keeps turning off

an amplifier needs minimum voltage (usually 6Amps) to turn on. If there is 12V at the input of your amplifier, check the remote for 12V as well as making sure the ground is secured. I suspect based on limited information, that your alternator/charging system is the culprit.Take your amplifier to a local shop and have it bench tested (abuot $10) they will hook up to an independant power supply and verify its properly working. Then it can be eliminated as the source of the problem. Also be sure your wiring and fuse are accurate for the amount of current draw.
Since your protection has never come on, and the power light is going out altogether, you may have an input voltage problem.
0helpful
1answer

Blinking protection light on mrv-t757 amp

Could be the power supply or output stage electrolytic capacitors.
Possibly breaking down/drying out inside.
0helpful
1answer

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
Not finding what you are looking for?

283 views

Ask a Question

Usually answered in minutes!

Top Alpine Car Audio & Video Experts

Jeffrey Turcotte
Jeffrey Turcotte

Level 3 Expert

8991 Answers

 Francisco Mauricio...
Francisco Mauricio...

Level 3 Expert

1551 Answers

The Knight
The Knight

Level 3 Expert

76835 Answers

Are you an Alpine Car Audio and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...