Question about Sony STR-DE597 Receiver

1 Answer

There is message PROTECT on display.how to solve it?thanks

Check all the speakers connections for short circuits

unplug from wall
and
unplug all of the speakers and extra components and turn it on to see if the message disapears

if it does one by one start plugging that speakers back in
unplugging from the wall every time you add a speaker
(just in case the reciver only realises there is a problem after it shuts down)

if you find that after pluging in a speaker and when you turn it on check the wires for cuts or short circuits and check the speaker itself replace it with another and see what happens

Without speakers it's the same.

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Need replaced power out ic and transistor....

Posted on May 11, 2010

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1 Answer

This set volume increse for 14 point. but system is off. then display showing there protect. how relese to protect.


Normally amps go into protect mode when a short circuit is detected. Check all speaker wires for faults or bad connections and the speakers themselves. If it does this with no speakers on, check the main power amp inside for short circuited parts.

Oct 16, 2015 | Audio Players & Recorders

1 Answer

NAD M3 power light turns red immediately and PROTECT message displays. Amp keeps functioning but volume control doesn't work up or down.


Hello
Check the connection to speaker with this amp, for any short or any other fault. disconnect the outputs, ie, speakers from the amp, and switch it On, and see the protect display comes or not. If it comes, the fault is internal and the set need service.
Your M3 dual Mono integrated amp, is of high output power and its outputs are protected against any overload or short circuit. If the system detect any among this condition specified above, it will show protect mode display.
Never load this amp, as protection display is there, as it may damage the speaker or its internal power amplifier section circuits, may cause more money to get it repaired. OK.

Jan 23, 2012 | NAD M3 Master Series Integrated...

1 Answer

Protect comes on why


Hello
Protection display will come over this type of set, when it is overloaded or system confused condition. Just unplug the device from AC mains socket and replug it after 4 to 5 minutes, and see whether it shows any protect display. If it shows it again, just disconnect the output loads, ie, connected speakers, and check. Again it displays 'protect', the internal circuit, especially the output amplifier circuits has the trouble, and the system need service. if it does not show protect display, after disconnecting the speakers from it, check the speakers or its connecting wires for damage. OK.

Jan 20, 2012 | Sharp Audio Players & Recorders

1 Answer

My stereo sysytem is a mini stereo: serial number 10200055. It currently says "protect", what is this and how do we return our system to normal operations?


Hi there,

When the word PROTECT appears on this display, this means the unit has detected a critical fault which could potentially cause harm to your stereo system.

The most common cause is a short circuit somewhere - something even as simple as loose speaker wiring could cause a short, triggering the Protect message.

You will need to determine if there is a possible short somewhere, so I recommend you start by firstly turning power OFF, disconnecting all speaker wires, then turn unit back ON.

Operate the stereo (without speakers) and turn volume up:
  • If Protect message appears when turning volume up, then stereo unit itself has an internal fault
  • If no Protect message appears, then suspect the speakers may be causing the issue.
  • Reduce volume and turn unit OFF
Re-connect speakers (ensure the connections are secure), turn unit ON:
  • If turning volume up triggers the Protect message again, there is an issue with the speakers or connections

Hope this helps.....

Sep 04, 2011 | Kenwood Audio Players & Recorders

1 Answer

Trying to hook up sony s-master with componet cables an the s-master displays on the display ''PROTECT UNPLUG'' however with nothing plugged in the s-master, works fine


Hi,
Check speaker wires, any wire seems shorted and causing Protect Unplug error message in receiver.
Good way to sort out bad wire is plug one speaker at a time, turn On receiver check, turn Off, then plug next speaker wire until you find out what speaker wire activates protection circuit of receiver.
Thanks.

Jan 01, 2011 | Audio Players & Recorders

1 Answer

On display appears PROTECT. can not clear data. how to solve it? thanks


check all the speakers connections for short circuits

unplug from wall
and
unplug all of the speakers and extra components and turn it on to see if the message disapears

if it does one by one start plugging that speakers back in
unplugging from the wall every time you add a speaker
(just in case the reciver only realises there is a problem after it shuts down)

if you find that after pluging in a speaker and when you turn it on check the wires for cuts or short circuits and check the speaker itself replace it with another and see what happens

May 10, 2010 | Sony STR-DE597 Receiver

1 Answer

The receiver problem


First thing I'd do is unplug it from the mains and check every speaker connection for short circuits (wires touching) Alternatively, disconnect all speakers and plug in a set of headphones to see if the Protect goes away. Check all components plugged into the receiver by unplugging then one by one. Finally if the Protect is still alight disconnect absolutely everything with the receiver volume control on zero. pull the plug out of the wall and let the receiver sit there for an hour with nothing connected. Then plug it back in plug in your headphones switch the receiver to FM and see what happens. If the protect is still there then I'm afraid the repair shop is your next stop.

BUT check those speaker wires especially if you have puppies or small dogs or believe it or not a small child. They tend to chew on things when teething.

Apr 07, 2010 | Sony STR-DE325 Receiver

2 Answers

Receiver turns off shortly after powered on & displays "PROTECT"


are any other devices sitting on top of this unit? if so it could be an overheat.

If you have pets make sure the wires are not chomped on this can cause a fault.

Also make sure you have nothing other than the factory default speakers hooked up to it.

here is what the users manual says
im going to sum it up for ya. if it says protect that means you have a short circuit please unplug the unit resolve the short circuit and plug back in....... here is the link To the users manual



http://www.docs.sony.com/release/STRDE485.pdf

once it is opened as a PDF document go to the search/ find area and type in "protect" and it will say the same thing.

somewhere you have a short your going to have to follow all the wiring again and look closely

Jun 01, 2009 | Sony STR-DE485 Receiver

1 Answer

Unit worked flawlessly 1 hour ago


Hi Ernietex,

Dont blame your wife.

Your receiver is basically going into protect mode.

The Denon AVRs contains a microcomputer for signal processing and control functions. In an unlikely event, it may cause it to lock up. Unplug the power cord from the wall outlet, wait for 10 to15 seconds and then plug it back again.

But, before you do than, please also check your speaker cabling again. Make sure that all of them are seated properly, none is touching each other or the body of receiver. Take out all the wire and put them back again if necessary..
Some times even a little tiny frayed wire touching the receiver could trigger the protect mode. Be careful, since protect mode is sometimes not fast enough and it could blown a few trasistors in the power circuit.
Just check your speaker as well....whether they play all right thru another receiver or amplifier. its posiible they might be shorting inside. A little frayed wire could also trigger the protect circuit in your receiver.
I hope this should solve your problem.

If you still can’t resolve the issue yourself, try resetting the AV receiver/AV amplifier before going on to opening the Receiver.

Hope you can sort out your problem with the above trouble shooting. Let me know if I can guide you further.
Best of luck. Thanks for using FixYa!

Apr 20, 2009 | Denon AVR-2700 Receiver

2 Answers

SONY STR-DE675 RECEIVER


check the speaker's connections, I got them message when a speaker wire was unplugged and plugged back in while the unit was powered on

Oct 02, 2007 | Sony STR-DE675 Receiver

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