Question about Alpine MRD-M501 Car Audio Amplifier

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No sound on my alpine mrd m501

I have the same problem it just started today.I try out another am and it wen i put it back it shows display but no sound?????

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 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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It may be the fuse

Posted on Jun 07, 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

1 Answer

Broken alpine amp terminals


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

Feb 10, 2010 | Alpine MRD-M501 Car Audio Amplifier

1 Answer

Cant get no sound


Try a different input source. I have had this happen before and the easiest way to diagnose the root of the problem was to take a home CD player out to my car and use the outputs to power the amp. If the amp works, move upstream to the RCA wires (unplug them from the back of your head unit and plug them into the home CD player). If that works, you know the stereo isn't putting out a signal. Good luck!!

Jan 26, 2010 | Alpine MRD-M501 Car Audio Amplifier

1 Answer

Bluetooth keeps dropping out. my phone is a nokia e51 sometimes gives error03 alpine cde103ebt


most likely when you paired your phone you did the standard discovery mode however on some model phones especially the Nokia you might have to force pair it and you can find that information on the menu settings on the bluetooth module, is it the BT-200,300,350,or 400?

Jul 18, 2009 | Alpine MRD-M501 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

1 Answer

How to unlock my alpine mono power amplifier mrd m500?


Hi. If you shorted (touched) the speaker wires together, or let them touch the chassis of the car, then it may have locked out. Just turning the amp off and back on will fix this, so it sounds like you have done damage to it. Most amps have a speaker relay which gives a click sound when you turn on. If there is no click, then it may have a power supply failure.

Mark

Oct 24, 2008 | 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

Alpine mrd-m501 mono power amplifier


OK, It looks like you may have an internal problem. I must say from the begining if you do not have a background in electronics take the unit to a qualified service center. Now it sounds like you could have a power supply problem if you have power coming in onpen the unit and with the use of a schematic find the main voltage rail and test from there each test point and make sure it matches the schematic value. Look for burnt circuit tarces nad if you find the remove them and jumper with re-trace wire.

Sep 15, 2007 | Alpine MRD-M501 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

1 Answer

Error codes


One of the parts went bad, and you need to take it into the dealer. The way Alpine's error codes work are very vague. E-3 could mean the psu fried, a resistor went bad etc.

Aug 12, 2006 | Alpine MRD-M501 Car Audio Amplifier

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