Question about Rockford Fosgate Punch P4004 Car Audio Amplifier

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Protection light goes on and off

MY protection light comes on and off. wiring is good and i took the amps cover off and everything looks ok. no idea whats goin on

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Test subs you may have blown the voice coil

Posted on Feb 16, 2009

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Kenwood kac 628 red light comes on and no audio output


The red light you describe on your amp, is the protection mode warning light. An amp goes into protect for many reasons. Here's a checklist.

1st check the fuse (s) on your amp and make sure they are not blown.

2nd check the inline fuse next to your car battery (if you have an inline fuse)

3rd, disconnect the speaker wires with amp on, does the light go off?

4th check your ground, this may be ok if you have tried another amp with the same wires.

5th.if none of these turns the protect mode off, it may be an internal fault.

you may have blown transistors and it is a tricky job to repair and costly.

Jan 28, 2013 | Kenwood KAC-628 Car Audio Amplifier

1 Answer

How do i get my amp out of protect mode? when everything is unhooked but the hot, ground, and rem wires, as soon as the amp comes on it goes n to protect mode how do i get it out


Check to make sure that there are no stray wires crossing into other inputs in the amp, if everything checks out OK then the problem is internal.

Oct 27, 2011 | Lanzar VIBE286 Car Audio Amplifier

1 Answer

Got a problem with my car amp.Everything was working fine until 2day.Amp goes in to protection mode.Jumps from power to protection indicator every i would say 3 seconds and each time it goes in to...


Ok check the remote wire running from the headunit to the amp should be giving v12 feed whiles headunit is on.

check or change grounding position.

take cover off the amp as the circuit may be over heating.

Sep 22, 2010 | Car Amplifiers

1 Answer

I hooked up 2 capacitors into my amp and every time I put power to it the amp shuts off and 10 seconds later a red light comes on for 5 seconds and the amp don't turn on, basically it goes into protect...


Well, I have no idea why you would have two capacitors on a 500 watt amp but, did you charge the capacitors? Have you tried the amp without the capacitors? What size power wire are you using?

Sep 20, 2010 | Kenwood KAC-9102D Car Audio Amplifier

1 Answer

VR3 Amp Protection Light problem


Looks like you have covered all the basics.

The remote wire is the switch that turns the amp on and off. So you are probably just killing the power to the amp.

Sounds like a short in the amp itself if all the input and output wires are disconnected and the protection is still coming on.

Mar 25, 2009 | AudioBahn A4401Q Car Audio Amplifier

1 Answer

P3002 protect light problem


sounds like u have shorted opt transistors no big deal goto nte electronics.com and replace . these amps r known 4 postive switching regulators going bad 3$ part rep[lace the #sholud be like tl 494cn square 14 pin blk long hopes this help u later dude

Mar 17, 2009 | Car Amplifiers

1 Answer

Powers isnt turning on but everythings hooked up?


Check the fuses. If the fuse is bad the amp's power supply is burnt. If the red light stays red and never goes green then your amp is in protect mode and the output section is burnt.To test for rem. problem just use a jumper wire (paper clip... or whatever)to jump from +12v power to rem. If rem. wire has no voltage when your radio is turned on that will make your amp come on. then look for the fuse in the rem. line. Good luck !

barneyluc

Oct 03, 2008 | Car Amplifiers

3 Answers

Amp protection


Does it go into protect if you disconnect the speaker wires from the speaker terminals of the amp?

Feb 16, 2008 | Sony Xplod XM-1652Z Car Audio Amplifier

1 Answer

Sony explode amp for my car


Try disconnecting everything but the power connections. If the protection light still comes on, then there's a problem in the amp. If it goes out, then there's a problem elsewhere. In that case, hook up one speaker cable at a time and power on. If the protection light comes on, then either that speaker is bad, or you've got too many speakers connected to that one amp output. Too many speakers connected together can cause an overload and trigger the protection circuitry, or worse, blow out something out.

Hope this helps, and please rate my advice.
Thank you, and good luck!!

Feb 04, 2008 | Car Amplifiers

1 Answer

My amp quit working


ok I thought I anwered this one but first thing to try is disconnect all your speakers and see if the light goes out if it doesnt then your gonna need a schematic and a working know how on solid state amplifiers. first check al the outputs for the speakers for dc If theres dc on an output then that output device is shorted or leaky. Ive have open drivers as well as current control transistors leaky or shorted to that made the protection come on.. Good Luck

Apr 07, 2006 | AudioBahn A6004T Car Audio Amplifier

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