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Amp shutting down when volume gets too high

At first, it only shut down in surround sound mode, now it shuts down in stereo mode as well ... thank you

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  • gwkklein
    gwkklein Dec 01, 2012

    problem solved ... a speaker wire was disconnected

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  • 12 Answers

Easy! You either have a surround speaker wired backwards or there is a break in the wire leading to a surround speaker that is allowing the +&- to arc together. your amp shutsvoff as a protection to keep the arc from reaching the mother board. replace your wires man!!

Posted on Dec 01, 2012

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Posted on Jan 02, 2017

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SOURCE: amp error

The only solution I, personally, can help any of you with is to buy a good working model. i.e. Mine! I am upgrading to a 7.1 Onkyo and do not need mine any longer. Send me an email and I will gladly sell it to you! $75 (no remote) But you already have one so... (passme23@hotmail.com)

Posted on Mar 17, 2008

  • 15 Answers

SOURCE: Samsung 5-Disc 1200-Watt Home Theater

If the unit shuts down almost immediately without sound, you have an electronic failure of the audio amplifier.

However if you must play the unit up above quiet background levels, you likely have a shorted speaker wire. With home theater systems, you have the luxury of trying different surround modes and speaker level settings. It's not unusual, for example, to have a loose wire strand going to the center speaker. In stereo, the system works fine. As soon as you switch to a surround mode, the amplifier senses the short and shuts down to protect itself.

Check those wires really close - I bet you'll find it there.

Posted on May 15, 2008

SOURCE: Kenwood vrs-7100 surround sound receiver turns on and shuts off

The audio amplifier IC are fried

Posted on Aug 12, 2009

  • 5 Answers

SOURCE: My Onkyo HT-R510 will shut down after several

Might be over heating. Make sure you don't have anything sitting directly on top of it. I even put a little fan blowing outward at the back of my system to keep it cool.

Posted on Feb 13, 2010

  • 11800 Answers

SOURCE: I have an Arcam AVR250

In Stereo Direct the analogue sound is directly routed to the amplifiers. In all the other ways the signal is digitized (if it ain't already) then modified digitally in a very specialized processor. In your case that processor has just died. It can't be repaired and you must replace the entire board it's soldered on to fix that - it will be expensive.
Why it has failed ? I don't know, but, since it's a processor, even the smallest electrostatic shock is enough.

Posted on Aug 27, 2010

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1 Answer

Kenwood kdc-mp142 why does it shut down when


Have you checked your speaker wiring as it could be you have some wires crossed ie: negative feeding the positive side causing the shut down & check the Ohms if at high volume you are trying to drag to many Ohms it will also cause the built in amp to shut down to protect the system dont keep incresing the volume as the strain will do damage

Sep 18, 2014 | Car Audio & Video

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Works fine at low volume, shuts off at maybe one third volume


This sounds like the cooling fan has failed, that's what causes the amp to shut down, because if it didn't, it would over heat, that's why the amp shuts off for safety of fire, because the cooling fan only operates in high volumes only, so I recommend replacing the cooling fan, because that's what's the cause, make so sure you order the right correct fan.

Jan 22, 2014 | Technics SA-AX7

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So i have installed my amp, epicenter, all wiring is done, hace great ground.. But once i turn my car on to sound check everything starts fine but after turning up the volume a bit.. My amo goes into...


It sounds like you have your gain to high. best way to solve this is by turning the gain way down to - or lowest number , then turn everything on and upto the volume you desire, then slowly up the gain. also avoid using bass boost, I agree it sounds great but it puts strain on the amp and shortens life in the amp. with the bass boost off, you can adjust others (not the gain) to get bass.

Hope this helps

Jan 26, 2013 | Car Audio & Video

1 Answer

Receiver when turned on is At 25 for volume the clicks and turns off. You can turn it on and turn down the volume so it will not shut off. However, it does not appear to play in surround sound DD or...


You have two different issues here which may be related (or not). Let me address them as separate issues:

1) If the unit shuts down only at high volumes, then either it is heating up (not likely) or there is some DC voltage getting to the final amplification stage. This will trigger the protection circuit which will shutdown the receiver. See the link for more info about protect mode in general.
( http://www.fixya.com/support/r5390728-protector_means )

2) The lack of surround would suggest that the unit is stuck in bypass mode or that the digital surround processing section is not working. Usually when this happens, any attempt to use a surround mode will result in no sound at all or very weak distorted sound. If you are getting sound at normal levels, then I would suspect that the main CPU is not telling the surround section to work. This can be a power suply problem, a CPU problem or even within the processing board itself. Without seeing waveforms within the receiver, I can't tell for sure.

The bottom line is that further investigation is needed. I would recommend that you take this to a shop and request a detailed repair estimate, Armed with that, we should be able to guide you through the repair or at least, provide more details.

Please keep us posted,

Thanks,
Dan

Jun 17, 2011 | Onkyo TX-DS595 Receiver

1 Answer

Tanaka htr 5660 was working fine. Not sure what button I hit, but sub and rear surround quit working. I have followed troubleshooting guides and to no avail. Connections are all fine as well


You must have hit the DIRECT button . In this mode it produces pure stereo sound by shutting down the multichannel Digital Sound Processor (DSP). Only your front Left & Right speakers will work

Mar 10, 2011 | Yamaha HTR-5660 Receiver

1 Answer

Kicker ZX300.1 shuts off after long play at high volume


It's probably overheating and the thermal protection circuit is shutting the amp down.

If it has a fan, the fan may be defective. If I'm not mistaken, the fan only runs at high temperatures so if you check it, you need to do so when the bottom of the amp is almost too hot to touch.

If the fan is working properly, you may be driving too low of an ohm load.

If it's neither of those, get the amp up off of the mounting surface and use an external fan to move air across the bottom surface of the amp.

Oct 11, 2008 | Car Audio & Video

1 Answer

Samsung 5-Disc 1200-Watt Home Theater Surround Sound System My Home Theatre System is keeps shutting down by its self. before it shuts down the screen says protection mode and then shuts down. i have...


If the unit shuts down almost immediately without sound, you have an electronic failure of the audio amplifier.

However if you must play the unit up above quiet background levels, you likely have a shorted speaker wire. With home theater systems, you have the luxury of trying different surround modes and speaker level settings. It's not unusual, for example, to have a loose wire strand going to the center speaker. In stereo, the system works fine. As soon as you switch to a surround mode, the amplifier senses the short and shuts down to protect itself.

Check those wires really close - I bet you'll find it there.

May 15, 2008 | Audio Players & Recorders

1 Answer

Shutdown during exciting audio


check the wattage of the speakers, they could be drawing too many watts from your amplifier, if you plug in a speaker that's more than the channel, it could harm your amp.
for example a 200 watt stereo, with 4 channels that equals 50 watts per speaker.

Hope this helps you out

Apr 01, 2008 | Audio Players & Recorders

1 Answer

Receiver Shutoff


That may be a clue to your shutdown problem. Disconnect that speaker and see if the unit still shuts down. If it does not, then there is a problem with this speaker,or the wiring going to this speaker. If the unit still shuts down, disconnect each speaker at a time to see where the problem is. If none of the speakers seem to cause the shutdown problem, there is na major fauly in the amp circuit, so the amp will need serviceing or replacement. Good Luck

Apr 08, 2007 | Kenwood VR-4090 Receiver

4 Answers

Volume turned up, kenwood shuts off briefly...


I had this same exact problem when my last older Kenwood Marine stereo cooked itself while I had it up loud for a few weekends on the lake. (smelled like it had burned inside). I went out and bought a new Kenwood KMR-550u stereo deck. (I do not have an additional amp). I hooked it up to the exact connections where my older Kenwood stereo unit had been hooked up, as I never had a problem with this for the past three years until it failed after smelling of burning elelectrical. I had chalked the problem up to heavy rain we had one day. Every time I turned up the volume, sometimes up to 27 out of 35 possible, or 29, or 32, the stereo would suddenly shut off as if I had turned it off. After a few seconds the stereo would come back on, but unless I was quick enough to turn down the volume it would do it again right away. Of course on a boat, we were beached in a cove and the engine was not running when I encountered this. I searched the internet finding hundreds of similar complaints and several dozen theories of all types, but only a couple that pointed me towards the power (voltage) idea as the problem. I put a volt meter on the positive & negative wires powering the stereo. I watched as I gradually turned up the volume, the voltage on the power wire gradually decreased from 12.5 volts, down into the 11 range, and as it hit 10.9 or 10.8 volts it shut off typically around a volume of 32. The red power wire in my boat that never seemed to have an issue with my old stereo until it fried was determined to actually be inadequate for the power flow for the new Kenwood, and probably was the culprit of my failed older unit. I offer this sound advice: Run a new pair of positive & negative wires directly from the battery (with an appropriate fuse of course (the deck has a 10 amp fuse in it's back so I would use that at the battery) to the stereo. Check the voltage as you turn the volume up into the high 20's and low 30's to ensure you are still getting voltage in the mid to high 11-12 volt range. The stereo is designed to require a minimum of 10.8 volts to operate, and when it drops below that it protects itself and shuts down.

Mar 24, 2007 | Kenwood Sirius KDC-MP522 CD Player

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