Question about Sony STR-DE597 Receiver

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How to turn off 'Protect"?

Every time I turn it on It goes to "Protect" and goes off. I have cheked speaker wires, and I unplugged it for a couple of hours still the same problem. What do you advise?

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Http://esupport.sony.com/US/perl/model-home.pl?mdl=STRDE597&LOC=3
However, If you still have the problem, there is likely damage in the receiver that needs to be corrected. I have a few other posts on this for this receiver. Make sure you don't have shorted speakers connected. One at a time, disconnect your speakers and check them with an ohm meter. If they read 8 ohms, they are electrically ok. Reconnect them to the receiver. If the read 4 or less, they are either of the wrong type or are partially or fully shorted and should be replaced with known good 8 ohm rated speakers with 100 watt program ratings.
Also, you can try using the reset to see if this provides relief. Using the front panel controls, power off. The holding down the 2 channel button, power on. You'll see a reset message on the display. If after this procedure it goes right back into protect mode, the receiver needs professional attention. Best guess is shorted outputs or other damaged components in the power amp section due to wrong type speakers connected or extended high heat operation.

Posted on Dec 12, 2009

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Check speaker wires, any wire seems shorted and causing Protect Unplug error message in receiver.
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