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Posted on Oct 30, 2012
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My power acustik 1200 watt amp is on protection mode how do i fix it

I tried changing the fuses and it does not work it still shine the red light

1 Answer

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  • Master 444 Answers
  • Posted on Oct 30, 2012
Anonymous
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Joined: Oct 24, 2012
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Check that no speaker wires or some other wire come off, If they all look okay, There is a internal problem with the amp, It will have to be taken in for repair,

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5 Related Answers

Anonymous

  • 631 Answers
  • Posted on Aug 20, 2008

SOURCE: mmat amp 1200 watt

If the amp is in protect mode, it probably has shorted output transistors.

What model amp is it?

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Anonymous

  • 41 Answers
  • Posted on Sep 21, 2007

SOURCE: prower acustic amp in protect mode

1) Make sure the amp is properly connected to +12V power source. 2) Make sure the amp is grounded well, directly to metal - if you have a voltmeter, an easy way to check the first two is to see if there are 12 volts across the power and ground wires. 3) Make sure the speaker output wires aren't touching each other. If none of these are the case, there is an internal problem with the amp and it should be serviced or replaced.

Anonymous

  • 21 Answers
  • Posted on Dec 21, 2008

SOURCE: protection light

take the amp out and hookit up to the car battery and let it charge then unplug it do this a couple of times then rehook it to the cars audio system it sounds like your amp may be locked..

also check your speaker wires from amp to speaker box then from the back of the box to the speaker inside the box you may have a short..

thats where i would start.. hope this helps

Anonymous

  • 15935 Answers
  • Posted on Jan 02, 2009

SOURCE: sony xplod 1200 watt amp quit no kind of protect lite on please

short answer yes... Long answer... Amp Failure: 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. If the fuse protecting the amp is too large, if the protection circuit doesn't respond quickly enough or if the power supply is poorly designed, the power supply transistors may fail. If you see a lot of black soot on the power supply transistors (near the power transformer), the power supply transistors have failed. Soot on the board doesn't necessarily mean the transistors have failed. Sometimes, technicians don't clean up the mess from a previous failure. Transistor Failure/Checking Transistors: In general, when a transistor fails, it will either short (common for output AND power supply transistors) or open (common for power supply transistors). Transistors act like valves. They control the current flowing through a circuit. A shorted transistor acts like a valve that's stuck open (passing too much current). In the case of an output transistor, the shorted transistors tries to deliver the full rail voltage to the speaker output terminal. If you've ever seen a damaged amp that pushed or pulled the speaker cone to its limits when the amp powered up (common on some Rockford amplifiers), that was almost certainly due to a shorted output transistor. When checking transistors, you most commonly look for shorted connections inside the transistor. You do this by using a multimeter to look for low resistance connections between the transistor's terminals. Note: I used the terms short and open on the previous paragraph. A short (short circuit) is a path through which current flows that should not be there. An open (open circuit) is a break in the circuit. It is most likely the power supply that has taken a ****.

Anonymous

  • 125 Answers
  • Posted on Feb 04, 2009

SOURCE: I have two 1200 watt sony amps bridged red light on in one why?

If you are certain speaker isnt blown and you have correct phase wiring and so forth you have whats called a solder jump which is internal repair by dealer only! buy a new amp at dealer wholesale price here cheaper than having it repaired unless under warranty go here for wholesale pricing on almost everything audio wise:
www.godspeedaudioheaven.com

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Kenwood xr600-1 I have it Hooked to a jensen 1200 watT and a capacitor red lights on but sub still hitting hard as they should, but my bat? being drawn way down kinda hot whats wrong ?

Those capacitors don't add any power they just store power in between bass notes but if you don't have enough current going to it through your power wire and don't have a good ground to bare shiny metal with a wire lug your not going to get a good connection. Also I spray clear coat or rubberized under coating or something over the ground connection so it doesn't corrode in the future and cause you to loose current. If you have the small Jensen 1200 with the lights on it those amp really only put out about 600 true watts. The type of wire your using and fuse sizing makes a big big difference. I used to only use OFC (Oxygen Free Copper) Audio power wire which is pure copper butearnwd about welding cable and it carries much more current and is cheaper and you cab buy it by the foot at ACDCWIREANDSUPPLY.COM so you don't have any extra wire. The shorter a wire is the more current it can carry. Also if you don't have your big 3 done under the hood or know what it is look it up on YouTube. I always run a AGM battery in the back close as possible to my amp and a $20 Stinger Pro adjustable Voltmeter off the amp itself so I can see the amps voltage in real accurate time. Get you a AGM battery, AGM battery, $20 Voltmeter, make good grounds to shiny bare metal. You can get a 10 pk of copper wire lugs online for $10 or less.
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Car amplifier stopped working.

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I have a nitro 1200 watt amp that was working great until it a red light that read " protection mode" turned on

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
Definitely is worth .A thumbs up would be greatly appreciated if this answer is helpful to you. nitro-1200-watt-amp-working-lv2kkrmxrai4iihdvw4m3np2-1-0.jpg
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How do I fix the problem so they work again.?

A 1000 WATT AMP HAS PROBABLY GONE INTO PROTECTION MODE BECAUSE YOU ARE TRYING TO RUN 1600 WATT SUBS COMBINED
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No sound from my amp

the kight is red because it isnt wired properly, try connecting a thicker ground wire then double check the fuse in amp plus in the power supply cable
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My 600 watt amp for my car just now start putting a red light on

You may need a new power supply inside amp. If you where running speakers with to many watts it will burn up the power supply. Try unplugging all wires. Replug them in also check fuse underhood and inside amp
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Amp Not working!

If the amp goes into protect mode, it's likely due to shorted output transistors. To eliminate other possible problems, read through the following page:

Amp in Protect Mode - Troubleshooting

If the problems are not with the wiring, follow the link at the bottom of the page to the Amplifier Repair Primer page.

Let me know if you have any other questions.
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Odd behavior of power and protect

With your multimeter set to DC volts, the black meter lead on the ground terminal of the amp (not on the point where the ground wire connectes to the vehicle) and the head unit on (so the amp will have remote voltage applied), touch the red lead alternately to the B+ and remote terminals of the amp. If the voltage is below ~11 volts, you need to check the wiring feeding whichever line is too low.

Do this with no RCA or speaker wires connected. Let me know what you find.
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Amp not working correctly goes into protection

Disconnect the speaker wires from the amplifier and see if it still goes into protection mode. If it still goes into protect with the speakers disconnected, there's a problem with the amp; if not, you may have a blown speaker or a shorted speaker wire.
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