Question about Sony STR-DE475 Receiver

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WAT DO I DO WHEN IT SAYS PROTECT - Sony STR-DE475 Receiver

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  • Anonymous Jun 04, 2008

    I Have disconnected the speakers and everything else from the receiver and protect still comes on. Brian

  • Deancraw Sep 01, 2008

    My Sony STR-DE 135 received shows the "protect" mode with nothing hooked up to it. No speakers - no other units. What can I do?

  • Graeme Ross
    Graeme Ross May 11, 2010

    Hi Roscoe... check all your speaker connections for shorted wires, check the speaker wires for any frayed or chaffed bits. Check your speakers with a meter for the correct impedance.

    If all of these appear ok, then the amp has developed a fault. You can prove the amp or the speaker system one way or the other by disconnecting the amp from the speakers and see if you stil get protect

    regards Graeme

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I still have this PROTECT problem. i did everything it said to do and i can't get it to work

Posted on Nov 13, 2008

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How did you go?

Posted on Mar 21, 2008

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I have an amp hooked up in my car.when I tried to connect the two woofers up to amp, the stereo cut off and the deck said protect.now that's all it will do is read protect.Wat do I do?


This is a circuit protection to stop you frying your audio! Could be a short circuit or wired wrong......remove the fault and it should reset! First remove the 2 sub woofers since that was when this happened and test the deck!

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MY Fender Passport P250 went into protect mode. I changed the FUSE at the power supply with a new fuse. Still it is in Protect mode. How to fix this


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My sharp Stereo is stuck in '' protect'' mode


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Getting my amplifier out of protect mode



There is a problem with one or both of the audio amplification circuits. The amp is going into "protect mode" to protect your speakers. I'm afraid there is no simple fix. this will need to go to the shop to be repaired...

...unless you have been tinkering with the speaker connections recently. In which case, make sure all connections are sound & there are no wires touching other wires. This causes a short circuit. Leave it disconnected from the mains overnight. There's a slim chance it might spring back to life tomorrow.

Good luck & let me know how you get on.

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My amp wont go past protect mode


Disconnect all speaker wires and signal cables from the amp. If it powers up (no protect light), the wiring needs to be checked. If it still shuts down (goes into protect), the amp likely has blown output transistors.

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