Question about Sony DAV-SA30 System

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Protect flashing on screen

Yesterday my surround system started flashind protect, and i can get no sound

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That is the system telling you it jhas shut down the amplifier circuit to protect itself from damage.
Check the speaker wires both at the back of the unit and at each of the speakers to see if any of them have come out or are touching anything they shouldn't be.

You may also have a blown speaker sending a short back down the line. So if you find no wires out of place, then disconnect each speaker and turn the unit off and on as you go until the message is not showing and sound is restored.

Posted on Apr 30, 2008

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Your Protection System probaly come on for some reason,Sony Is Known for that problem, Check on your screen if a red lit warning Staying (protect) Is on.If there is, Try hiting the reciever on the sides or the top of the cover fairly hard when it is turned on, Some times this will work to turn the protect light back off, Sony is bad for there amps end recievers going into the protect mode,

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HDCP...high definition copyright protection.

This means that one of two things have happened;

1) The connection method you used for video from the player to your monitor does not support the decoding of media that is copyright protected such as the Blu-ray format, or;

2) The media you are using is not a valid original recording.

As of yet, the only video connection available that supports the HDCP decoded signal is HDMI. Component video is capable of even greater resolution than HDMI but manufacturers haven't made a way of implementing it's use for copyright protected digital signals. However not ALL Blu-ray or HD-DVD media are copyright protected, that is completely dependent on individual title in which case a component video connection will work.

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Your surround sound need service from a qualified tech. No other remedy.

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1 Answer

Sony home theater system started blinking protect


Protect mode will kicking whenever a fault is detected.

Causes that can start protect mode are:

Electrostatic harges on internal circuits.
Leave the unit unplugged for power for one hour or so, this will allow discharge.

Bad speaker wiring.
Check speaker wiring, try unplugging and plugging back, or start after removing one speaker at the time.

Internal fault.
Internal fault is the natural cause for protect mode. If all the above did not work, then the problem is a blown component or an internal fault. In this case the unit must be taken apart , tested and repaired by an experienced person.
If the unit is less than one year old, or if you want to get service, call Sony at the phone number listed on the product documentation.

Regards.




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