Question about Alpine MRD-M301 Car Audio Amplifier

2 Answers

Amp displays the letters curr

Amp is stuck in protect mode after negative speaker touched the outside of the amp

Posted by jerrie ramos on

Ad

2 Answers

Anonymous

  • Level 1:

    An expert who has achieved level 1.
    Corporal:

    An expert that has over 10 points.
    Mayor:

    An expert whose answer got voted for 2 times.
    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 13 Answers

? The amplifier has been shutdown due to excessive current. ? Find and eliminate the cause of the excessive current, then turn the power off then back on from the remote control unit. ALPINE ELECTRONICS OF AMERICA, INC. 19145 Gramercy Place, Torrance, California 90501, U.S.A. Phone 1-800-ALPINE-1 (1-800-257-4631)

Posted on Jun 10, 2009

Ad

Anonymous

  • Level 2:

    An expert who has achieved level 2 by getting 100 points
    MVP:

    An expert that got 5 achievements.
    Governor:

    An expert whose answer got voted for 20 times.
    Scholar:

    An expert who has written 20 answers of more than 400 characters.

  • Expert
  • 125 Answers

Have you disconnected all inputs and outputs on amp and retried starting it power only? if so your amp has an internal solder bridge and must be repaired by authorized repair center. Repair it or replace it at wholesale price from www.godspeedaudioheaven.com

Posted on Feb 06, 2009

Ad

Add Your Answer

×

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

It is stuck in protect and wont come out
bro...i had problem like that before and i found out that the load(speakers) was high thats why the fuse always blow...or...check the wire to the speakers if they are sorted or touched.gud luck

Oct 26, 2012 | Rockford Fosgate T1000-1bd - 1000W...

1 Answer

Sony STR-DE925 stuck in protect mode
there could be electronic components failure



• need to open the unit

• get a multimeter and measure the DC voltages present on

each of the amplifier output stage.

• it should be no more than 0.7 V, if it s, remove those pair of power

transistors and test again for output voltages.


the negative probe

of the multimeter to the chassis of the unit.


• if the protect problem goes out,

assume one of the extracted pair is bad.


you can test it individually since it is already outside the circuit.


Let me know how you make out with the inspection.

It is a good chance you will find something.


hope this helps, thanks for using Fixya!

Aug 07, 2012 | Sony STR-DE475 Receiver

2 Answers

My Harmon kardon is stuck in protect mode
Disconnect all speaker connections and rca cables. Leave power, ground and remote wires intact. Try turning on again. If you still have a protection light your amp is faulty. Hopefully you have warranty. Double check all connections .A thumbs up would be greatly appreciated if this answer is helpful to you. Worth fixing.

Nov 19, 2011 | Harman Kardon Audio Players & Recorders

1 Answer

My fisher-RS939 audio stopping getting out through the speakers and do I get it out if the system is in protect mode
Normally when receiver keeps entering protection mode it means wires are crossed or touching somehwere. Double check all speaker wire connections at the receiver and speakers. More than likey the positive and negative wires are touching at one of the terminals.

Jun 19, 2011 | Fisher RS939

1 Answer

I have a JBL GTO 7001, it switches in an out of protection mode. i pulled out the amp, an noticed that the positive wire from the speaker was pulled out. so i disconnected the power scorce an reconnected...
Make sure that your positives and negatives are lined up correctly. This happened to me during my latest install and the problem was I had one positive speaker wire plugged into a negative speaker terminal. This switches the amp on after a few seconds and then back to protect mode once it detects a faulty speaker wire. Hope this helps!

Oct 07, 2010 | JBL GTO7001 Car Amp

1 Answer

When i was driving i had my stereo turned up pretty loud and one of the speaker wires came out of the terminal and i think touched the outside of the amp. now when i turn the amp on even without the...
have u tryed holding the mode button it should reset the amp

Oct 04, 2010 | Alpine MRD-M1005 1000 Watt Mono Amplifier...

2 Answers

PROTECT DISPLAYED ON RECEIVER
This generally means you've got a short somewhere, and the received is trying to protect itself.

My suggestion is to disconnect all of your speakers at both ends, and reconnect them.

Most times this happens because a speaker wire is lose, and the positive and negative connections are touching each other, causing it to short out.

Mar 24, 2009 | Sony STR-DE485 Receiver

1 Answer

Protection Light Comes on
Sounds like you have an ohm problem, Tryy hooking the positive from one speaker to the negative on the other speaker. Then hook the negative from the first speaker to the negative on your amp and the positive from the second to the positive on the amp this will drop your ohm load and the amp should stop going into protection.

Mar 08, 2009 | Sony Xplod XM-1652Z Car Audio Amplifier

1 Answer

My CA9 has protect recurrent problems.
if you are bridged in parallel instead of in series the amp wont support the load so it turns the power protect on till the amp cant handle nomore then the amp will go if you have two subs bridged run them left speaker possative to to the amp possative for bridged mode then laft speaker negative to the right speaker possative then right speaker negative to your amp negative for bridged mode if you have them left and right speaker possative to amp possative and left and right speaker neggative to your negative to your amp thats parallel the ampwont support the 2 ohm load

Feb 08, 2009 | Crest Audio CA9 Car Audio Amplifier

1 Answer

CUR is showing on the display
The amp will reset when you cut the power off to it. Disconect bat for 30 sec and reconect. But to be honist with u if the wire jumped out and grounded some how during a high level, there is probley internal damage done.

Oct 17, 2008 | Alpine MRD-M605 - V12 MONO AMP 600WX1 RMS...

Not finding what you are looking for?

View Most Popular

MRD-M301 Car Audio Amplifier

  • Car Audio & Video

Related Question

It is stuck in protect and wont come out

  • Rockford Fosgate T1000-1bd - 1000W Class-bd Mono Car Amplifier

Open Questions:

0 Answers

Mrd_m301 not working after unpluging head unit

May 16, 2012 | Alpine MRD-M301 Car Audio Amplifier

0 Answers

Is there a reset on the Alpine Mrd-301 Getting power from car battery there's no power to amp it does not go on

Apr 21, 2012 | Alpine MRD-M301 Car Audio Amplifier

0 Answers

alpine mrv-f345 turns on but wont play sound

Feb 11, 2012 | Alpine MRD-M301 Car Audio Amplifier

0 Answers

ii bought this amp alpine mrd m301 model i see that its 350 watts. the person that i bought this from says its a 700 watts peak is that correct?

Feb 07, 2011 | Alpine MRD-M301 Car Audio Amplifier

See all Alpine MRD-M301 Car Audio Amplifier Questions

Related Topics

Alpine MRD-M301 Car Audio Amplifier Logo

Related Topics:

226 people viewed this question

Ask a Question

Usually answered in minutes!

Popular Questions

1 Answer
I lost some settings in the volume menu and sub volume

Alpine iDA-X100 Car CD/ MP3...

16 Answers
Need radio unlock code for Alpine / Mercedes Benz Audio 10 CD

Alpine CDA-9847 CD Player

2 Answers
CHECK TUNER on Sirius XM

Alpine CDE-SXM145BT Advanced...

1 Answer
DC error message

Alpine iDA-X200 Car CD/ MP3...

5 Answers
Can I fix a fried amp?

Alpine MRD-M1005 Car Audio...

Top Alpine Car Audio & Video Experts

xxxxxx xxx

Level 3 Expert

5023 Answers

Marvin
Marvin

Level 3 Expert

85239 Answers

Muntejaya Ginting
Muntejaya Ginting

Level 3 Expert

10422 Answers

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

Answer questions

Manuals & User Guides

Loading...