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Alpine 3552 amp cuts out go into protection mode when hooked to car works good with 12volt 3 amp supply mot with car batery. please e-mail me if you can help

Amp cuts out go into protection mode

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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SOURCE: Amp automatically goes to protection mode

Bad Ground.

Posted on Nov 02, 2006

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SOURCE: alpine pdx 1.000 keeps cutting out

You are going to want to make sure all your power wires and grounds are 4 gauge as well as the wire leads to and from the capacitor-4 gauge also. make sure you have a very good ground - the power wire from the battery should hit a distribution block-from the dist. block a 4 gauge should go to the capacitor another 4 gauge to the mono amp and another to the 4 channel amp -every component should have a good solid ground even if you have to bust out a grinder and a drill and some self tapping sheet metal screws and go nuts on it- see if that helps you

Posted on May 27, 2009

junit80
  • 81 Answers

SOURCE: protection mode on my amp

YEA CHECK THE OHMS ON THE SUB TO MAKE SURE THEY MATCH UP TO THE AMP JUS SOUNDS LIKE THE WIRING IS OUT OF PHASE.

Posted on Jun 15, 2009

  • 495 Answers

SOURCE: i have a alpine pdx 1.1000 and it is in protect mode

The most likely suspect would be an internal fault on the Alpine PDX-1.1000. So other than verify the 2 ohms per speaker using a continuity tester (DVM / VOM), all others involve opening the Alpine amp to effect repairs.
Options then are: to consider a DIY (do-it-yourself) repair if and only if you're very familiar with electronic components & circuitry, use of a DVM/VOM and a soldering iron/station.
Access to a Service Manual or at the very least, a schematic diagram would be a necessity (although a challenge in itself) as detailed procedures, test points diagnosis flowchart would be outlined though should you be uncomfortable with a DIY, perhaps your best bet would then be to seek the services of an authorized Alpine Service Center (specially if still under warranty) or a qualified professional.
Now referring to http://www.fixya.com/support/t1817194-stuck_in_protect_mode_phoenix_gold_ryval

"1. Does your amp have a high input port? This is where instead of RCA's you feed it speaker output from your head unit?
2 If so try this and see if the magic happens.. If it doesn't your screwed and the problem is internal most likely in the input stage and that's why your having to "fool" the amp.
3. Also take off the remote turn on wire and make a short little jumper from the remote turn on to the B+ on the amp. Yeah the amp will blaze on but see if it changes the output."

Posted on Oct 20, 2009

  • 84 Answers

SOURCE: IS the alpine 3552 any good?

alpine makes amaizing amps... as long as it's matched to the speakers/subs you are going to put on it this amp will last you a very long time... and it will put out amazing power... you won't be disappointed.

Posted on Dec 13, 2009

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1 Answer

Trying to install a Alpine 3552 amp, can't get power, not sure how remote switch works?


make sure you have a good ground. use a continuity tester. local retail or stereo shop sells one for about $10-$20. make sure you have power (fuse should be within 12" of battery). the remote wire off the stereo (usually blue) can be your remote switch. this has to be connected for the amp to work and stereo must be turned on.

Jul 23, 2011 | Alpine Car Audio & Video

1 Answer

I have a a 12" alpine 1243d hooked up to an


You may have blown a fuse, check those to make sure they aren't blown. Verify that the connections are in place again and make sure the settings on the amp are correct as well.
If the fuse isn't blown and the connections are secure, I would make sure that the wire that you have ran from your battery is within the specifications for use with your amplifier.

Mar 05, 2011 | Alpine Type-R SWR-1222D Car Subwoofer

1 Answer

Is the alpine 3552 any good? I can't find any reviews.


alpine makes amaizing amps... as long as it's matched to the speakers/subs you are going to put on it this amp will last you a very long time... and it will put out amazing power... you won't be disappointed.

Dec 02, 2009 | Alpine MRD-M605 Car Audio Amplifier

2 Answers

S series sub cuts out


this sounds like an ohm load problem do u have it bridged

Nov 01, 2009 | Alpine SWR-1222D 12" Type-R Series...

1 Answer

My alpine clips out at high volume I took the subs out and hooked um up outside of the car and it was working fine. do I just have a short in a ire or is this the pdx 1000 safe mode. How can I get it fixed


Go to rockfordfosgate.com they have a woolfer wiring wizard that can help you make sure your amp is under the correct ohm load, if your woolfers are wiring up on a 1 ohm stable load the amp will overheat and go into protection mode and cut out.. Need the woolfers on a 2 or 4 ohm stable load, and the amp should run fine with a capacitor, and some good 0 to 2 guage cable, plus a good battery and alternator to feed it

Oct 09, 2009 | Alpine PDX-1.1000 1000W x 1 Car Amplifier...

2 Answers

Amp is on but no sound.....also amp stays on when car is turned off


sound is more like a speaker conection problem. than your amp. check your speaker connections first. to make sure they are plugged in all the way. and fit tight on the speaker. it they are . and it is still cutting out. you may need to trace the speaker wires. and see if they are getting pinched in the door jam. that is a usual culprit for speakers cutting out.

Aug 03, 2009 | Car Audio & Video

1 Answer

Amp gets power but no sound


Hello, First of all with these new Alpine amps everithing adjustable just about is digital, as well as the internal workings of the amp to a point. If you bought this amp new then check your warranty or take it back where you purchased it if you can. Check that your amp is getting an input signal from your head unit. Check your head unit sub output settings, something could have gotten turned off or down. On this paticular amp if there is a problem internaly it would let you know or go into protection mode. You say your sub has ben tested and is good, check again. Hook another speaker up to the amp. Unhook that speaker and try, you never know. Like I said, if the amp is'nt going into protect mode and the digital display is'nt telling you any types of faults then it has to be the input signal. Make sure you are getting a signal. That has to be your problem otherwise amp would be in protect mode. Let me know what you find.

Feb 12, 2009 | Alpine MRD-M605 Car Audio Amplifier

1 Answer

Amp powers on, no sound from subs


the output is blown. It is in need of service.
There are many different ways that an amp can fail but the two most common failures are shorted output transistors and blown power supply transistors (< those are not blown). There are several types of protection circuits in amplifiers. The most common are over-current and thermal. The over-current protection is supposed to protect the output transistors. Sometimes it doesn't work well enough to prevent the failure of the output transistors but it will work well enough to shut the supply down before the power supply FETs are destroyed. If the amp remains in protect mode, goes into protect mode or blows the fuse as soon as the remote voltage is applied, shorted output transistors are almost certainly the cause.

Dec 28, 2008 | Alpine MRD-M1005 Car Audio Amplifier

1 Answer

Power Protection Circuit (SORT) Engaged


Umm a ohm meter would help you here. Double check the wires from the sub to the amp...make sure its not shorting out. Try starting the amp without the wires on the terminals...if the protection shows up then there is a short inside the unit and it will need to be replaced/repaired.

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