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Sony home theatre system receiver displaying PROTECT.

When switch on it is displaying 'protect' i disconnect all the speakers and still displaying protect.if i keep switching it on and off it sometimes work for a short period and sometimes a long period.thanks for help.raj from guyana

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  • 71 Answers

Output stage fault probably a capacitor leaky

Posted on Dec 10, 2008

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1 Answer

Sony home theatre system


Hi,

Good enws is yout unit is not fried. Bad news is you need to get the protection fuse replaced...

Mar 04, 2008 | Audio Players & Recorders

1 Answer

Sony HT-SS1000 theatre system


It is possible that the amplifier had encountered a fault with a higher current drain which had triggered it to a protection fault condition. The fault can be with your output drivers. Please check for short on the outputs fitted for both the channels. Use a meter after disconnecting to check for short in the drivers. Disconnect the positive and negative voltages to the output and see if the protect changes. Even a fault in the preamp stages that drives in high current into the output can shut the Amplifier. Sometimes this can be a noise which can be a HUM or HISS before the protect works. Faulty capacitors in these circuits also can cause similar issues and needs close observation.You need to confirm and replace the specific stages or outputs. If not there can be issues in the mother board. Maybe the protect circuit by itself is shutting off due to a faulty bias or there is a leak in any voltage/current sensing circuit. Also disconnect the speakers and test, if the amplifier comes out of the protect mode then check for short on the speakers.

Nov 22, 2011 | Audio Players & Recorders

1 Answer

Samsung AH64-04467E Home Theatre powers on but then goes to Protect and shuts down


Start by disconnecting all of the speaker wires usually direct short causes protect to shut down.

Are the speakers the right ohms

Sep 28, 2011 | Audio Players & Recorders

1 Answer

The home theatre system LG HT904TA went in to protection mode. Mean that the receiver/dvd panel shown 'protection ' on the display panel. I have try to switch off /on but the 'protection...


If you've disconnected the speakers and the fault is still showing then the fault is internal with the Amplifier and it's shutting down to protect itself from further damage.

Your only solution is to remove the cover and have a look at repairing it yourself or take it to a repair shop.

Jun 28, 2011 | LG Audio Players & Recorders

1 Answer

Receiver goes in to "PROTECT" mode


Try disconnecting your speakers. Then see if the unit displays protect. If it does, then the finals in your Amplifier have gone bad and will need service. If the unit comes on and there is no error, you most likely have a bad speaker.

I hope this information allows you to resolve this issue.
If you need further assistance please comment to this post and I will try to help you further.

Thanks for using FixYa
asnowman

Aug 18, 2010 | Sony HT-DDW790 System

1 Answer

"PROTECT" appears on my DENON DHT-500SD


Sounds like a speaker wire is shorting against either another speaker wire or something metallic. Check your speaker wires to make sure they're not shorting (touching). If that doesn't work, I'd take it to a repair facility. Good luck!

Feb 16, 2010 | Denon DHT500SD System

3 Answers

When i switch on my samsung HT-Z110 the word hello appears then protect thenit turned off!


Audio receivers have an output protection circuit called "protect mode", this is to protect the receiver from short circuit failures.The speakers and speaker wires are what I inspect thoroughly first, look for bare speaker wires,or bare wires that are touching each other at that point,check speaker wires at the back of the receiver for sloppy connections,etc.If all looks good then try disconnecting all the speakers at the receiver,then turn power on to see if it goes into "protect mode", if it does the the receiver probably has an internal short and will need to be sent in for service,if it doesn't go into "protect mode" then connect one speaker at a time back into the receiver until it does go into "protect mode" then which ever speaker you connected last is the speaker that is shorted(blown) and then you know that speaker is the problem and it will need to be replaced or repaired. Good luck !

Nov 29, 2009 | Samsung HT-DB600 System

1 Answer

Hello, I have a problem with dvd home theatre system... there is a display saying... push protector power...and i dont know how to fix it...


remove all speakers and turn it on if it still displays protect (and it probably will) the damage is done. could need a diode or an output ic. not a diy job.

Nov 08, 2009 | Sony HT-6900DP 6.1 Channel DVD Home...

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