Question about Sony STR-DE497 Receiver

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My STR-DE497 5.1 CHANNEL RECEIVER DO NOT TURN ON IT`S ONLY WRITTEN PROTECT.

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Power amp section problem. most likely one channel blown.

Posted on Nov 14, 2009

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Posted on Jan 02, 2017

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1 Answer

My Sony str de335 is in protection mode speakers are unhooked how do I get it out of protection mode?


if you disconnected everything and it still goes into protect, the most likely there is a damaged amp channel that will need to be repaired.

Feb 23, 2015 | Sony STR-DE335 Receiver

1 Answer

Multi channel av receiver str dh700


un plug ac power. then disconnect all the speakers. plug in ac power and turn on. Still in protect? Could be blown amplifier.
Not in protect? one or more of the speakers or speaker wire is shorted

Aug 25, 2013 | Sony Audio Players & Recorders

1 Answer

Hi i am a new member and i have a problem with my str-k840p it started to have a protect mode flashing and I can't hear the at all the tv or speakers. What could i do i check all my connection and they...


Hi,
Protect display indicates that receiver is in protection mode due to some serious problem in output amplifier section and most probably any output channel output chips got shorted out.
Protection mode turns On to avoid any further damage in receiver. If your Sony STR-K840P is under warranty then call numbers written on warranty documents to ask warranty cover and if unit is out of warranty then either Sony service center or local repair shop will help you to get it fixed, it is not user level repair.
Hope these info will help you.
Let me know if you have additional question.
Thanks.

Nov 29, 2010 | Sony Audio Players & Recorders

1 Answer

Won't go off protect mode


When the speaker wires shorted to each other, the output transistors for that channel probably shorted as well. This means that the receiver needs repair. The typical parts cost for this usually runs between $20-$40.

Dan

Feb 18, 2010 | Sony STR-DE325 Receiver

1 Answer

STR-DE197 Continuous Auto-Protect


Probably dry joint on an output/regulator chip or a failed output ic.

Jun 29, 2017 | Sony STR-DE197 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

Is there a way to reset the STR DE898/B 7.1 channel Receiver


Reset can mean many things... Input/ output/surround/ or is it saying "Protect" on the display?
If that's the case, unplug, wait a minute, plug it back in and turn on. If it still say's Protect, disconnect the speaker wires and test again. Chances are you have a shorted wire or speaker. If you need something different, post a reply and I will help you further. Hope this helps

May 25, 2009 | Sony STR-DE898 Receiver

1 Answer

Goes into protect mode..


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

May 17, 2009 | Sony STR-DG520 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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