Question about Sony STR-DE445 Receiver

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When I turn my sony DE 445 on, it flashes PROTECT and the speakers do not work. Any suggestions?

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1 Answer

Having problems with my SONY str-db798 amp. When i turn it on (without any speakers or even with speakers) it flashes "PROTECT" and shuts down. Any suggestions how to deal with it without getting...


Press and hold down the power button on the front panel until you hear a secondary "click" from inside the chassis. That takes about 15 seconds.

Then read my tutorial on how to keep your receiver out of protect mode.

Sep 03, 2011 | Sony STR-DB798 Receiver

1 Answer

I have a Sony STR-DE 597 reciever. I have been using it fine for a few years with no problems and it sounded great. I turn the unit on recently and a message was displayed on the unit that said PROTECT....


Protect will usually show up if the receiver was turned up too loud to the point where the speakers will crackle, the receiver will switch to protect to not damage anything. Unplug it for about 30 seconds and check all the audio wiring in the back to make sure everything is plugged in good and tight and no loose cables or stray pieces of copper audio wire and plug it back in.

Aug 21, 2011 | Sony STR-DE595 Receiver

1 Answer

Sony STR DE-445 unit powers up but no sound


Check the fuse, Sony is known for its random problems with sound. The one I have you must tap it on the side. Its a flicker switch inside.

Feb 13, 2010 | Sony STR-DE445 Receiver

1 Answer

I need help my sony str dec 445 keep flasking the protect on the display


first check for any loose speaker wire in the back as this will cause the unit to go into protect mode if the bare speaker wire is touching, if thats not the case then there is a problem with the unit internaly and would be hard to tell whats wrong with it without looking at it.

Dec 11, 2009 | Sony STR-DE445 Receiver

1 Answer

DE 445 flashes "protect" and sound goes off when loud noises play on DVD


Check your speaker connections at the back of the receiver and at the speakers. You have a short. If you don't see anything obvious, disconnect your speakers at the receiver and play a dvd and turn up the volume. If it stays on, you have a wire or a speaker problem. If it cuts out , you have a DSP chip problem. Reconnect speakers one by one and test each speaker until it cuts off or you have fixed the problem. If you still have issues, post a comment and I can help you some more.

Aug 07, 2009 | Sony STR-DE445 Receiver

1 Answer

Sony DE-445 reciever flashes PROTECT


Sounds like a grounding problem. If the ground plug isn't missing or loose try plugging it into a different outlet.

Jun 13, 2009 | Sony STR-DE445 Receiver

1 Answer

Protect keeps 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.

Apr 23, 2009 | Sony STR-DE475 Receiver

1 Answer

Sony STR-DE 605 FLASHES PROTECTION ON READOUT


To all users with this problem:

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.

Mar 22, 2009 | Sony STR-DE605 Receiver

1 Answer

Receiver str de 445


Hi - You can download the manual from the link underlined in blue below:

STR-DE445

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Please take a moment to rate this solution & let us know if the information given was useful to you - Good Luck!

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Aug 28, 2008 | Sony STR-DE445 Receiver

1 Answer

"Protect"


El circuito amplificador de audio esta dañado o dañados si trae mas de uno.

Mar 30, 2008 | Sony STR-DE375 Receiver

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