Question about Alpine MRV-F345 Car Audio Amplifier

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Fan not working

Mrv-f345 alpine amp. What temp should the fan cut in. My amp is over heating at 60 celcius, rgs Stu

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IT SOUNDS LIKE THE FAN IS NOT WORKING RIGHT, SO CHECK OTHERWISE IT WILL COOK YOUR AMP

Posted on Jun 13, 2009

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Mine too! I took it to my dealer. They said they had to send it to Alpne to be reprogrammed. I'm getting it back on next week.

Posted on Aug 07, 2009

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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

My amp turns on but the sound goes in an out


yes you have a internal fault of the amp. the circuit that puts it into safe mode is bad and that is a very small chip on the board know as a op amp. needs to be repaired.

Jan 25, 2010 | Alpine MRV-F345 Car Audio Amplifier

1 Answer

Same thing


Doubtful sir, your problem mostly enlies in the fact that the Alpine amplifiers are stable at 2, 4, and 8 ohm loads more than likely you have it wired at something under a 2 ohm load. This makes your amplifier do many things including not work properly. A properly wired amplifier should stay cool, and never shut down. Go to www.the12volt.com and veiw their subwoofer wiring diagram section. choose your subwoofer impedence and how many as well as how many voice coils. enter that into the drop down menus and you will be presented with all your wiring options then wire accordingly

Jun 09, 2009 | Alpine MRV-F345 Car Audio Amplifier

1 Answer

Mrv F345 power cut out and now the screen flashes blue


disconnect all of the speaker wires at the amp and turn your system on -if the amp stays on then you likely have a roasted coil in one of your speakers somewhere and causing a short which is shutting your amp down into protection mode-if the amp wont stay on with nothing connected to it then you have probably roasted something inside the amp and uhhh good luck bro

May 09, 2009 | Alpine MRV-F345 Car Audio Amplifier

2 Answers

Alpine Amplifier Cuts in and out on Passenger side while driving


Make sure wirings are not pinched and try replacing the fuse as well.

May 01, 2008 | Alpine MRV-F345 Car Audio Amplifier

1 Answer

Wiring door speakers


Just make sure that the speakers are the correct impedance and properly rated. If not, the amp can be damaged.

Jerry G.

Apr 27, 2008 | Alpine MRV-F345 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

Car ausio amplifier


Power up the amp with the volume set to the minimum. Does the amp start to heat up?

 

What model is the amplifier?

Oct 15, 2007 | Alpine MRV-F345 Car Audio Amplifier

2 Answers

Over heating


you trouble shoot the problem by opening unit and force-powering fans to test for overheating during "being used loud for a few minutes". Read the fans' label for proper voltage to apply and proper polarity. I am guessing the fans will run on car battery voltage of 12 volts. Also, attempt to close up the unit to simulate real conditions. There should not be fuses for the fans. If unit is now cooling, then look for faulty thermistor, which turns the fan on during rising temperature. Once thermistor is located, a fast test is to "jumper" its two wires to simulate turn on.

Jun 16, 2007 | Alpine MRV-F345 Car Audio Amplifier

1 Answer

Alpine Amplifier Cuts in and out on Passenger side while driving


this isnt a complex problem but both units may need service

Mar 12, 2007 | Alpine MRV-F345 Car Audio Amplifier

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