Question about Sony STR-DE425 Receiver

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PROTECT ON FLASHING - Sony STR-DE425 Receiver

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Audio amplifiers Ic´sdamaged need to be replaced

Posted on May 22, 2010

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1 Answer

First problem ever--enjoying the unit when it has suddenly begun to stop producing sound and a flashing 'protect' message appears. The system is still running the CDs but no sound.


Your unit is in protect mode because some component or components failed. Could be overdriven output stages or something related.

Jun 09, 2018 | Televison & Video

1 Answer

Why did amp indicate error and turn off?


SONY ' eSupport - PROTECT or PROTECTOR is flashing in ...

https://us.en.kb.sony.com/.../protect-or-protector-is-flashing-in-the-displa...
Aug 15, 2015 - Turn off the home audio device, and remove all speaker wires from ... If a cord is frayed or in contact with another terminal, an error will occur.

How to get my receiver to stop flashing protected - Sony's ...

https://community.sony.com/t5/Home...to...receiver...stop.../182577
Sep 15, 2013 - intermittent video ... How to get my receiver to stop flashing protected ... is below the rated impedance range indicated on the rear of the home audio ... D.If the home audio device still displays a PROTECT error or does not turn ...

My AV receiver says OVERLOAD and shuts off, what should ...


Dec 26, 2015 | Pioneer Audio Players & Recorders

1 Answer

Receiver is flashing "PROTECT" on


look for a button or switch lablelled "lock, "protect" or with an image of padlock on it, press the button/switch the switch, this should "un-protect" the device

May 04, 2011 | Audio Players & Recorders

1 Answer

My car radio keeps flashing protect do i need a code


don't know what kind of radio you have, but usually if a radio is flashing protect it is because you have a short in the wiring, a bad speaker or a bad output ic.

Jun 18, 2010 | Car Audio & Video

1 Answer

My reciever is blinkning 'protect' after being turned on. It starts up as normal but after the initial start it starts flashing 'protect' and after it starts flashing I can not do anything but turn it off....


It shows protect when it senses a problem with the output wires shorted or some internal fault. Try disconnecting all the speaker wires and power up again. If it still shows protect, then the fault is internal.

Mar 12, 2010 | Sony Audio Players & Recorders

1 Answer

Flashing protect


the protector comes on to keep the amp from further damaging itself or the speakers. The buzz you heard was probably 60HZ line buzz from the main DC supply conducting full current through one of your speakers through a damaged amplifier transistor. Your stereo will need professional repair. The protect circuit basically opens the speaker relay (and sometimes shuts down the unit) to prevent this DC voltage and current from getting to your speakers until the problem is corrected.

Jun 17, 2009 | Onkyo TX-SV727 Receiver

1 Answer

Protect is flashing on the radio


wires are ok but speakers may not be which can put it into protect.other then that your head unit has an issue

Jun 12, 2009 | Kenwood KDC-MP232 CD Player

2 Answers

Kenwood cd radio player flashing the word protect


i installed this strero in my car and all i get is the word protect .now what do i od

Oct 24, 2008 | Kenwood KDC-MP335 CD Player

1 Answer

PROTECT FLASHING


The protect circuit is doing it's job....probably the amplifier
output stage is shorted.....have a technician check it..make
sure any / all bad connects are soldered when chassis is out
for service......................T.

Jan 04, 2008 | Sony STR-DE345 Receiver

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