Question about Sony STR-DE345 Receiver

1 Answer

Protect Flashing Sometimes

HI I HAVE PROBLEM WITH MY DE 345 THE PROTECT KEEPS FLASHING BUT IT ONLY HAPPENS WITHIN CERTAIN RANGES. lIKE WEHN IM WATCHING TV IT CAN NOT BE WITHIN THE 7-10 SOUND LEVEL RANGE BUT IT CAN BE ABOVE IT OR BELOW IT. THE ONLY PROBLEM IS BELOW 7 REALLY DOES NOTHING BUT PUTTING IT AT LIKE ABOVE 10 CAN MAKE IT HARD TO HAVE CONVERSATIONS WHILE LIKE FOOTBALL IS ON. WHAT CAN I DONT TO FIX SO IT WORKS IN THE 7-10 RANGE

Posted by on

  • uvaljb May 21, 2008

    Protect flashes - and the amp is not working. happens alot.



    What should I do with it ?

×

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Genius:

    An expert who has answered 1,000 questions.

  • Master
  • 1,175 Answers

Dust the cabinet out with one of those cans of "dust off" compressed gas and make sure you have PLENTY of ventilation around the amp.

Posted on Feb 24, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

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 & Video Receivers

1 Answer

The reciever won't turn on...the standby light just keeps flashing red.


This can be an indication of protect mode. See the link below for an explanation of protect. If you have any additional questions or wich to attempt a repair yourself, please update this and I'll provide additional information.

Dan

Link: http://www.fixya.com/support/r5390728-protector_means

Dec 02, 2010 | Onkyo TX-SR605 Receiver

1 Answer

Standby Output LED is flashing fast


This is the "protect" mode -- the unit has detected a short circuit in the speaker output and has shut down to keep from burning out the amp.

Remove the speaker wires, then reconnect one at a time. If the LED starts flashing again before you've connected any wires, then the problem is within the receiver.
If it starts flashing again when you connect a particular speaker, then the problem is in the wiring to that speaker or the speaker itself.

Sep 05, 2010 | Audio & Video Receivers

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 & Video Receivers

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 flashing


es posible que un canal se ha dañado por lo que primero daño el fusible con la sobrecarga y posteriormente se daño el canal. es necesario se revisen las polarizaciones de los transistores para determinar el canal dañado,es seguro que el daño se encuentra en uno de los frontales.

Mar 21, 2009 | Sony STR-DE345 Receiver

1 Answer

Protect keeps flashing


there is a similar problem to yours on here. also, does it take a minute to go into protect or does it happen almost immediately? i'd unplug all your speakers from the back of the receiver and turn it on, if it still goes into protect it sounds like an internal problem which has been addressed. look at this for internal problems; http://www.fixya.com/support/t245043-teac_stereo_receiver_model_agv8520

Jan 20, 2008 | Teac AG-V8060 Receiver

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

1 Answer

Protector flashing


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.

Oct 05, 2007 | Sony STR-GA7ES

Not finding what you are looking for?
Sony STR-DE345 Receiver Logo

Related Topics:

117 people viewed this question

Ask a Question

Usually answered in minutes!

Top Sony Audio & Video Receivers Experts

nexrad_chris

Level 2 Expert

117 Answers

Cindy Wells

Level 3 Expert

4758 Answers

Pieter Vleeshouwers

Level 3 Expert

1420 Answers

Are you a Sony Audio and Video Receiver Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...