Question about Alpine MRV-F545 Car Audio Amplifier

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MRV-F545 VLT Error

Hi, I am having a problem with my Alpine MRV-F545 Displaying "VLT" error. I've checked wiring, grounding, subwiring, and battery. When my vehicle is on the volts displayed on amp when checked says 13.8V. I am stumped and not sure what more to do. Any ideas on what to do will be great.

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  • Anonymous Jan 27, 2009

    I HAD SAME PROBLEM COST ME $220 NZD
    SOMETHING HAD BLOWN INSIDE THEY SAID I HAD SPILT SOME THING
    ON IT SO I HAD NOT !!! BUT I STILL HAD TO PAY


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5 Suggested Answers

SOURCE: VLT Error

chenge battery

Posted on Sep 29, 2007


Shuttle83
  • 1139 Answers

SOURCE: Alpine MRV-F345 VLT ERROR

Hello,

This is an indication of a voltage error, I have seen this when the voltage regulator or the car battery is begining to have a problem supplying enough current to the amplifier. Check the voltage levels with the amp turned off and then turn on the amplifier, if the voltage drops this means that there is poor voltage regulation and this may mean that you will have to replace the car's voltage regulator.

I hope this helps,

Thank you,

Shuttle83

Posted on Apr 22, 2008

  • 631 Answers

SOURCE: Alpine MRV-1507 "low Voltage"

If it indicates that you have an open shield ground, read through the following page. It will show you how to test the shield ground connection of your head unit..

Temporary RCA Shield Repair


Posted on Aug 17, 2008

etirbynnor
  • 655 Answers

SOURCE: MY AMP KEEPS BLOWIN THE FUSE...i CHANGED THE

Hello creelb22,

Fuses usually blow because of a short of too much current.

Test your wiring (including the speaker wires) and make sure they are not shorting or grounding against the vehicle chassis. Also make sure that the speaker voice coils are not shorted.

Hope this helps.

Posted on Jul 26, 2009

  • 55 Answers

SOURCE: 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.

Posted on Sep 01, 2009

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