Question about Alpine MRV-F545 Car Audio Amplifier

Open Question

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.

Posted by on

  • 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


×

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

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Alpine 345 amp flashes VLT


If the fault occurs even with the engine switched off , there is no reason of excess voltage but if the inverter DC-DC convertor within is faulty it can cause this error.
You can remove the covers and check for any visible signs of capacitor leak or burning. Unless the circuits are isolated the fault cannot be traced or confirmed. It can be a short in any of the regulators or drivers but has to be confirmed.

Dec 23, 2011 | Alpine Car Audio & Video

1 Answer

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

Feb 26, 2010 | Alpine MRV-1507 Car Audio Amplifier

1 Answer

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...

Feb 05, 2010 | Alpine MRV-F345 Car Audio Amplifier

1 Answer

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.

Mar 16, 2009 | Alpine MRV-F545 Car Audio Amplifier

1 Answer

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


Aug 14, 2008 | Alpine MRV-1507 Car Audio Amplifier

1 Answer

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

Apr 20, 2008 | Car Audio & Video

1 Answer

Sony kv-16gw1


I would suggest that you get a schematic for this device and the examine the power supply section with a multimeter.

Sep 07, 2007 | Alpine MRV-F545 Car Audio Amplifier

3 Answers

No power to amp


soundsto melike an underrated ground system. make sure that your ground cable is clean and is connected to the frame.

Sep 02, 2007 | Alpine MRV-F545 Car Audio Amplifier

1 Answer

Alpine V12 MRV-T707


power wire from fuse block goes to "the 1 that says power"...remote is used to have your device turn another device on...like a cd changer

May 28, 2007 | Alpine MRV-T707 Car Audio Amplifier

Not finding what you are looking for?
Alpine MRV-F545 Car Audio Amplifier Logo

Related Topics:

69 people viewed this question

Ask a Question

Usually answered in minutes!

Top Alpine Car Audio & Video Experts

xxxxxx xxx

Level 3 Expert

4807 Answers

Tygh Duval
Tygh Duval

Level 2 Expert

290 Answers

Jaime Hernandez

Level 3 Expert

2296 Answers

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

Answer questions

Manuals & User Guides

Loading...