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When I turn on my radio it goes into protective mode then shuts off after about 5 secoonds

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  • JVC Master
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My dear friend the audio amplifier IC of your device are damagged.You need to replace it.

Posted on Jul 06, 2008

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1 Answer

Denon avr2312ci shuts off and blinks red


Yes that is why. The receiver is protecting itself from an un-stable load impedance which causes current/voltage spikes through the final amplifier components and proportionally through the input where the protection relay is (click),. Do not continue using the amp until you have repaired or replaced the blown speakers. A rule of thumb is to maintain 8 ohms on each speaker wire plugged into the amp. Keep that in mind or eventually you will damage it.

Jan 23, 2014 | Denon AVR-2312CI

1 Answer

Can't open,in protect mode


Hi:
First disconnect all speakers from the unit and then try turning the unit on too see if it still goes to protect mode. Protect mode is a shut down feature that shuts down the unit because of a shorted speaker or speaker wires are touching each other. If the unit does not shut down after disconnecting all speakers then reconnect them one at a time while turing the unit on after each conncection until you find the shorted speaker. If it shuts down with no speakers attached to it then you have a internal problem with the amplifier section, probably a shorted output transistor in the Amp circuit or preamp circuit.

Jul 08, 2011 | Yamaha Audio Players & Recorders

1 Answer

System turns off and flashes "Protect"


Hi, you have a short somewhere along your speaker wire. When the receiver goes into protection mode, it shuts itself down so you don`t blow your on-board audio amp.

If you see protect come up on your Receiver, you have got a short somewhere. What`s happening is your receiver is sensing an overload somewhere in your system and if it does not go into protection mode and shut down , there will be permanent damage done.

You will need to check the speaker wire if it is not bridging somewhere or sometime else..

Have a nice day..

Feb 18, 2011 | Sony STR-DE575 Receiver

1 Answer

My sony str db790 is in protect mode, i have disconnected all the speakers and when i turn it on it goes in to protect mode again. i have connected back 2 speakers that i know have no faults and still it...


Hi Kevin, This may not be a solution but you`ve most likely burnt out the amplifiers, I have the same model and its just burnt out the amplifiers for the second time. I was`nt cranking the volume and it was running my Bose AM 5`s which are very good speakers.Its expensive to repair and not many tech heads will take on anything "Sony". If you do have any luck fixing it please get in touch. *n.crookgto@bigpond.com* Regards, Neil.

Dec 11, 2010 | Sony STR-DB790 Receiver

1 Answer

My denon avr1200 receiver once it is turned on goes into Protection mode. How do you reset or make work?


The reciever will go into protection mode when there is a short in the speaker wires or the amplifier was overloaded. What I would do first is verify that none of the speaker wire connections are loose at the back of the reciever or at each speaker. And verify that none of the wires are making contact with each other. Then label each speaker wire as you remove them from the reciever so you can re-install them correctly. After you have disconnected the speaker wires try unplugging the reciever for 10 to 15 minutes. Most recievers have a self-resetting overload protection switch and this should reset it back to normal. Now try plugging the reciever back in and turn it on without the speaker wires connected. It should be out of protection mode now. If it is still in protection mode verify that there is not a reset switch somewhere on the back of the reciever. If it is not in protection mode now then proceed to connect one speaker set at a time and turn on the reciever to see if it goes into protection mode. If it goes into that mode after connecting a speaker then that speaker is the cause of the problem. If it does not go into the mode after all speakers are connected then try turning the volume up. If it goes into protection mode then there could be an internal short on the amplifier or a incorrect OHM rated speakers connected to reciever. Verify that the speakers are rated the correct OHMS.

Feb 22, 2010 | Denon AVR-1200 Receiver

1 Answer

After turning ON the power/standby switch, the unit(receiver) display comes ON (green light) then after approx.4-5 seconds the display goes OFF and the unit defaults back to the standby mode (red light). I...


Is the red light flashing at first?
The unit may be going into protect mode. Lets hope it has done the job and the receiver has protected itself from failure.
Protect mode can result from speaker wires touching each other or the Amps2_bing.gif metal case. Check that first.
It can also be caused by unstable ohm loads if too many speakers2_bing.gif are connected to any of the outputs especially zone 2.
If you can remove all speaker wires and turn the unit back on. If it stays on, turn the volume down on the main zone and zone 2 if connected. Then reconnect speaker wires.

Nov 16, 2009 | Denon AVR-485 Receiver

1 Answer

Turn on power and the amp goes to protect mode


disconnect the speakers and see if it does the same thing.
if it does not shut down,check that the speaker wires are not touching on the back of the speakers.
many times,people run over the wires with a vacuum or similar and a short results,or bump the speaker.most people have the leads way too long,and even if one strand touches,it will shut down the amp.
if it still shutting off,there is an internal problem.
the best place to go with an onkyo is an authorized depot.
they are tricky to work on.
i did onkyo warranty for 7 years.

Sep 06, 2009 | Onkyo TX-DS939 Receiver

1 Answer

Onkyo ts595 goes into protect mode with volume increase


HI check your speaker cables are not touching, also make sure "b" speakers are not on and that all your speakers are 4ohm or higher as this will cause the amp to shut down if they are to low an impedeance,The amp is protecting itself when it shuts down.

hope this helps.
CABLE GUY.

Aug 03, 2008 | Onkyo TX-DS575 Receiver

1 Answer

My samsung HT-TX75 keeps shutting off in a few minutes saying protection.


protection mode activated to protect from serious damage and please follow me.1-shut down your system2-make volume in low position3-remove all your connected speaker4-switch your system on and watch if it does not go to protect mode insert your speaker one by one until you find the bad one and change it and start with cable change first and then speaker itself-if it goes to protect mode you must call service center.

Jul 07, 2008 | Audio Players & Recorders

1 Answer

Stuck in protect mode


Speakers shorted out, blew a fuse. Replace the unit or (cross your fingers and) open up the box and find the blown fuse.

Nov 23, 2007 | Sony STR-DE425 Receiver

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