Question about Sony STR-DE475 Receiver

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I have a sony receiver that keeps flashing "protect" what does that mean

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Hello it sound like the output transistor could have blown or a capacitor could have poped or bulged

regards
shaun

Posted on May 15, 2010

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Posted on Jan 02, 2017

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Why did amp indicate error and turn off?


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Sony receiver stR se-501 found fuse burned after replaced turned on the flashing massage PROTECT come on . Did I miss anything?


Protect typically means that the fuse blew because something in your receiver went bad. It's now protecting your speakers from that badness. You need to get the receiver fixed or replaced.

Jun 16, 2015 | Sony Str-Se501 Stereo Receivers

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PROTECT MODE


usually means a short in the amp section. Needs to be repaired before it will turn on properly

Nov 17, 2013 | Sony STR-DG500 Receiver

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The word "Protected" keeps coming up on the


When the word protect comes on it means there is a load problem, first! turn off the receiver, next remove all wires and speakers. Now turn the unit back on and make sure the volume is turned right down, this will reset the processor controller ic, if the word protect stays off it means there is a short in wires or one of the speakers. on the other hand if the word protect comes on when the receiver is switched on "without wires and speakers" you have a short in one or more of the audio output ic's in the receiver that will need a tech to correct.

Jan 25, 2011 | Sony STR-DB830 Receiver

1 Answer

The protection light keeps flashing cant do anything


his usually means some speaker wires are touching. remove all first (meaning all cables except the power one) power it on if you get the message again it is a faulty device inside the unit. if not you can isolate the problem by plugging one in at a time. once you find out the problem wire you chase the wires to see if they are not cut or touching somewhere. thank you and please rate.

Jan 06, 2011 | Sony STR-DE335 Receiver

1 Answer

Our sony receiver is flashing protected on screen


Our sony receiver is flashing protected on screen

Mar 20, 2009 | Sony Audio Players & Recorders

1 Answer

My reciever is flashing the word PROTECT and will not function. It's a Sony STR-DE445


Follow the steps below to troubleshoot if the word PROTECT or PROTECTOR is flashing on the A/V receivers display.
  1. Check the speaker wires and speakers for proper connections.
  2. Reduce the volume level. IMPORTANT: If the receiver is played back at maximum volume level it may enter the protect mode. Maximum volume listening will cause the receiver to run very hot and may drain the output capacitors.
  3. Disable the surround sound option if both the A and B speakers are being used simultaneously.
  4. Ensure the top of the receiver has proper ventilation to keep it from overheating.
  5. If the message only occurs when using a DVD player, the sampling frequency may be set too high. IMPORTANT: Some receivers provide compatibility with the higher sampling frequencies through alternate connections. Consult the owners manual for specific information.
  6. Unplug the AC power cord for about 1 to 2 hours to reset the output transformers.
If the issue is still unresolved, service may be required. The Sony® eService Web site at http://eservice.sony.com/ can assist you in obtaining service from a Sony Service Center or locating a Sony Authorized Servicer.

Dec 15, 2008 | Sony STR-DE545 Receiver

1 Answer

Flashing message on my reciever


PROTECT, PROTECTOR or the letter P is flashing in the display of the A/V receiver. Solution
sp.gif sp.gif Follow the steps below to troubleshoot if the word PROTECT or PROTECTOR is flashing on the A/V receivers display.
  1. Check the speaker wires and speakers for proper connections.
  2. Reduce the volume level. IMPORTANT: Ifthe receiver is played back at maximum volume level it may enter theprotect mode. Maximum volume listening will cause the receiver to runvery hot and may drain the output capacitors.
  3. Disable the surround sound option if both the A and B speakers are being used simultaneously.
  4. Ensure the top of the receiver has proper ventilation to keep it from overheating.
  5. If the message only occurs when using a DVD player, the sampling frequency may be set too high. IMPORTANT: Somereceivers provide compatibility with the higher sampling frequenciesthrough alternate connections. Consult the owners manual for specificinformation.
  6. Unplug the AC power cord for about 1 to 2 hours to reset the output transformers.
If the issue is still unresolved, service may be required. The Sony® eService Web site at http://eservice.sony.com/ can assist you in obtaining service from a Sony Service Center or locating a Sony Authorized Servicer.

Dec 15, 2008 | Sony STR-DE545 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

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