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Why does my Sony STR-DE597 go into protect mode when the amplifier kicks on everytime I try to turn it on??

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  • Contributor
  • 30 Answers

Two small resistors after the power supply have probably failed and will only allow safe mode operation

Posted on Feb 15, 2014

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Posted on Jan 02, 2017

  • 3 Answers

SOURCE: code for sony receiver model str d565 protect mode

If you need support you can log into:
http://esupport.sony.com/US/perl/support-contacts.pl?mdl=STRDG510

for free tech support on sony chat line

Posted on Jun 02, 2008

  • 92 Answers

SOURCE: goes into protect mode..

you probly have speaker wires arching. unplug them and replug thm in making sure no bare wire is showing

Posted on May 20, 2009

ginko
  • 19396 Answers

SOURCE: stuck in protect mode

Protet mode is a special diagnostic mode that starts when a fault is detected.

When in protection mode the unit is prevented from starting by protection circuit, so to prevent further damage.

Check the speakers and speakers wiring, a contact in speaker wires, or faulty speakers can send the unit in protection.

Try unplugging power cable for one hour or so. then connect cable back and see if you get rid of protect state. Sometimes accumulation of electrostatic charges inside circuit capacitors can kick in protect mode. In that case unplugging the unit from main for some times can get rid of electrostatic charges, and reset circuits by draining power completely.
If that was the problem, you will not get Protect when plugging back power cable.

If you do all the above and still get Protect, then there is a real fault.

In that case the unit may be disassembled and tested to find the fault.

If that is the case I suggest contacting the manufacturer at the number listed on the owners manual, or asking a quote on repair to a local technician.

Posted on May 29, 2009

SOURCE: Sony STR DE-725 going into ''protection'' mode

Audio Amplifier IC damaged

Posted on Aug 23, 2009

  • 1039 Answers

SOURCE: I HAVE A SONY RECIEVER SRT-DE597 6.1 CHANNEL AND I

Amp output is damaged and needs repaired. Protect mode cannot be deactivated. When amp is repaired and operating normally protect mode will not be displayed.

Posted on Aug 30, 2009

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1 Answer

Hi. my sony STR-DE 597 go in protect mode. how can I fix/repair this? Give me a tips.


protect mode means there is a shorted components inside your reciever it's probably the out put transistors take out the transistors and test it with a multimeter.

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disconnect all the speakers and turn it on. if it does not go into protect mode, then youve got a bad speaker or wire. good luck

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Your sub will take that input, possibly split to two RCA connectors, and its internal amplifier will do the rest. Its own manual will give the specifics.

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The protection mode is there for a reason...the main one being to protect your speakers in the event that there is an issue with the amplifier. Bypassing the protection can easily result in the destruction of your speakers and the unit itself. Your receiver needs to be examined by a real live technician.

Nov 27, 2009 | Sony STR-DE597 Receiver

1 Answer

I HAVE A SONY RECIEVER SRT-DE597 6.1 CHANNEL AND I ITS ON PROTECTED MODE CAN YOU HELP ME UN PROTECTED


Amp output is damaged and needs repaired. Protect mode cannot be deactivated. When amp is repaired and operating normally protect mode will not be displayed.

Aug 29, 2009 | Sony STR-DE597 Receiver

1 Answer

My receiver changes to "protect" then clicks off


Since you had to change the fuse to get it to power on, chances are you have a damaged receiver. You can try resetting the system (instructions below) but I doubt this will provide relief. When a system is doing what yours is, it is more often than not a sign of a short in the system causing excessive power consumption. Many times such problems in the final amplifier section, in the form of shorted output transistors. This most often happens from running with the wrong impedance load, shorted speakers connected, loud volume with inadequate ventilation (high heat conditions) or running the receiver without speakers connected.
Try resetting using the front panel controls. Power off. Then holding the 2 channel button down, power on. You see an abrv reset message. If after doing this you still have the same issue, it's time to investigate repair facilities or due to possibly high cost of repairs simply retire the unit and get another.

Aug 04, 2009 | Sony STR-DE597 Receiver

1 Answer

Audio protect keeps turning off my receiver (sony STR-DE597)


That is the common symptom of the defected STK-IC in power amp.section that busted already or just a loose connection.First try to resolder the pins of STK-IC and also all component parts joint in power amplifier section if its works! if not that is the time you replace it, so it works normal again.

Hope it may helps you...

Jun 08, 2009 | Sony STR-DE597 Receiver

1 Answer

Stuck in HP 2CH


one of the transistors seem to have been installed in the wrong direction.if it is working it will blow off again As for the remote , it works via a separate circuit.

Feb 05, 2008 | Sony STR-DE597 Receiver

1 Answer

STR-DE597 Display is not visible


Try a complete RESET by completely switching OFF mains power and leaving for at least 40secs. before commencing a new setting-up procedure.
Let's know if this does work it back to normality!

Aug 04, 2007 | Sony STR-DE597 Receiver

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