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Sony A/V Receiver in PROTECT mode

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Old 06-12-2009, 09:12 AM   #1  
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Default Sony A/V Receiver in PROTECT mode

Hopefully someone has an answer for me. When I turn on my Sony STR-DE597 receiver it flashes PROTECT after about 5 seconds. It flashes for about 15 seconds and then the receiver shuts off.

I've had this same set-up for almost 5 years, so it's not like the speakers aren't the right ohm or anything like that. But, here's what I did discover; the positive speaker wire going to one of my front speakers had come out. I had unplugged the power cord from the receiver for about an hour and a half per the instructions that I had read online. I plugged the speaker wire back in hoping that was the problem, but still the same.

So, I unplugged the receiver again and let it sit overnight and most of today. I'm going to try it again later this afternoon in case it just needed that time to "reset".

If it still doesn't work, does anyone have any suggestions? Hopefully, someone has gone through this same issue and has a cure!

Thanks in advance!
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Old 06-12-2009, 09:56 AM   #2  
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the most typical reason for a receiver going into Protect mode is a cross connection in the speaker wiring. Usually it can be as simple as a mere "whisker" of copper wire touching another exposed wire or terminal at the back of the set. It could be a damaged speaker wire where the insulation has broken down for some reason and the + and - speaker wires are touching, creating a short.

Get a good flashlight and very carefully look at all you connections, both at the back of the receiver and at each speaker. You are looking for a break in the wiring...or something as small as a single copper strand ("whisker") lose and touching another terminal or exposed wire.

let us know what you find
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Old 06-12-2009, 10:35 AM   #3  
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Originally Posted by m_vanmeter View Post
the most typical reason for a receiver going into Protect mode is a cross connection in the speaker wiring. Usually it can be as simple as a mere "whisker" of copper wire touching another exposed wire or terminal at the back of the set. It could be a damaged speaker wire where the insulation has broken down for some reason and the + and - speaker wires are touching, creating a short.

Get a good flashlight and very carefully look at all you connections, both at the back of the receiver and at each speaker. You are looking for a break in the wiring...or something as small as a single copper strand ("whisker") lose and touching another terminal or exposed wire.

let us know what you find
Thanks a lot! I'll trace everything really well again before turning it back on. I'll post what I find.
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Old 06-12-2009, 05:04 PM   #4  
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Well, I checked all the wires and everything looks good. With all wires removed, the receiver still goes into protect mode. So, obviously it's not the speaker wire, it's something internal. I even tried reseting the receiver and right after it reset, back into protect mode. I really didn't buy this thing to be disposable. My step dad had a Fisher receiver that lasted well over 10 years. I thought Sony was quality.
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Old 06-12-2009, 06:36 PM   #5  
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Quote:
Originally Posted by bgirard View Post
Well, I checked all the wires and everything looks good. With all wires removed, the receiver still goes into protect mode. So, obviously it's not the speaker wire, it's something internal. I even tried reseting the receiver and right after it reset, back into protect mode. I really didn't buy this thing to be disposable. My step dad had a Fisher receiver that lasted well over 10 years. I thought Sony was quality.
I have experienced many, many problems with Sony receivers and will never own another. Sounds like you have an internal amp problem. For what repair costs are these days, it would be better to purchase a reliable new model (Onkyo, Denon, Marantz, Pioneer Elite, Harman Kardon, Yamaha) with all of the bells and whistles.
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Old 06-12-2009, 08:22 PM   #6  
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I have experienced many, many problems with Sony receivers and will never own another. Sounds like you have an internal amp problem. For what repair costs are these days, it would be better to purchase a reliable new model (Onkyo, Denon, Marantz, Pioneer Elite, Harman Kardon, Yamaha) with all of the bells and whistles.
Yeah, that's probably what I'll do.

Anyone have any suggestions for what to do with this one? I'm sure it would be worth something to someone. It's $122 flat rate to send it to Sony to fix.
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Old 06-12-2009, 08:32 PM   #7  
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Not to be a smart ass or anything but boat anchor comes to mind.
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Old 06-12-2009, 09:22 PM   #8  
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Not to be a smart ass or anything but boat anchor comes to mind.
I don't have a boat, but I could use a paper-weight!

I think I'm going to get the Denon AVR-1609. Thanks for the recommendations.
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Old 06-12-2009, 09:55 PM   #9  
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I don't have a boat, but I could use a paper-weight!

I think I'm going to get the Denon AVR-1609. Thanks for the recommendations.
Sounds like a plan...
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Old 06-13-2009, 04:31 AM   #10  
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I don't have a boat, but I could use a paper-weight!

I think I'm going to get the Denon AVR-1609. Thanks for the recommendations.
I would like to add that this Denon does not process audio via HDMI. You will need to run a separate audio cable along with the video cable froma DVD player, bluray player, cable box..etc..

Denon is a great choice in receivers. I would like to suggest jumping up to the AVR-1909/AVR-789 (same reciever with the 1909 being made for Denon direct and the 789 being made for big volume retailers).

Here is a link comparing the 1609 and 1909. The 1909 is more expensive, $229 vs $649, but I think you will be getting a much more complete package, ready for today's HD audio and video.

Best wishes on whatever you choose!
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Old 06-13-2009, 10:08 AM   #11  
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Only ES line of AVR is reasonable but at that price range Denon, Marantz, Itegra, Pioneer beat them pretty good. most of their regular AVR does not last after warranty expires, it is my personal experience and after that never bought any SONY AVR, even their high end Blu ray players don't use quality or name brand chips even though they are very high price.
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