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When I turn on the power, a PROTECT display appears, then powers back off. Why?

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First, check all your speakers connections in back, to make sure there are no wires touching from positive to negative(red to black terminals). Secondly, find the reset procedure in your owner's manual. It may say, "Return to Factory Defaults, or simply Reset" If that still doesn't work, the meaning of "Protect", is shown when you have DC Offset(meaning a damaged amplifier) The receiver is switched on and off, by a microprocessor IC(a computer within your unit) If the amplifier detects this DC Offset, the microprocessor will not allow the unit to be turned on.

I you require more assistance, or would like to inquire about having your unit repaired, please visit my website at audioserviceclinic.com. You may contact me there. Thank you.

Posted on Dec 11, 2014

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Posted on Jan 02, 2017

  • 383 Answers

SOURCE: "PROTECT" displays after I switch ON the power.

there is short inside, usaull with copacitors u might want to have it looked at

Posted on May 27, 2010

themend
  • 148 Answers

SOURCE: appears on the display when

Amplifier has a fault, probably a blown transistor or FET.

Posted on Feb 18, 2011

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1 Answer

Hello can u help me about my MHC-gzx55d sony hifi component, when you turn on the power, the screen display appear "PROTECT" what is the problem and what is the possible damage of my component. please help...


When it goes into protect mode it has been over loaded. Remove everything from the component and unplug the unit for a minute or two. plug it back in and see if it pops out of protect mode. If this does not work then you will need to do a factory reset or check the fuses on the inside of the unit.

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1 Answer

Sony amplify has display of power protect


You may have speaker wires shorted on the output connector. Make sure to turn off power first, disconnect your output cables, then turn it back on to see if the protect is turned off.

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Sony stereo protect mode


If "PROTECT" appears on the display: Immediately unplug the power cord, and check if anything blocking the ventilation holes on the back of the system after "PROTECT" disappears. After you have checked the ventilation holes and found to be all right, reconnect the power cord, and turn on the system. If the issue persists, contact your nearest Sony dealer.


The above is from the manual at http://www.docs.sony.com/release/MHCEC909IP.pdf

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1 Answer

My stereo sysytem is a mini stereo: serial number 10200055. It currently says "protect", what is this and how do we return our system to normal operations?


Hi there,

When the word PROTECT appears on this display, this means the unit has detected a critical fault which could potentially cause harm to your stereo system.

The most common cause is a short circuit somewhere - something even as simple as loose speaker wiring could cause a short, triggering the Protect message.

You will need to determine if there is a possible short somewhere, so I recommend you start by firstly turning power OFF, disconnecting all speaker wires, then turn unit back ON.

Operate the stereo (without speakers) and turn volume up:
  • If Protect message appears when turning volume up, then stereo unit itself has an internal fault
  • If no Protect message appears, then suspect the speakers may be causing the issue.
  • Reduce volume and turn unit OFF
Re-connect speakers (ensure the connections are secure), turn unit ON:
  • If turning volume up triggers the Protect message again, there is an issue with the speakers or connections

Hope this helps.....

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is' protect 'appears on display?.remove speakers & check again.if then set work without error check speakers & cable. protect appears again there is a problem with power amp module.

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According to Page 46 of the LBT-W5000 Operating Instructions:
"The display stars flashing as soon as you plug in the power cord even though you haven't turned on the system (demonstration mode).
Press DISPLAY (for LBT-W5000 / W300 / XB700 / XB500) or DEMO (STANDBY) (for other models) while the system is off. If the system is in the Power Saving mode, press POWER SAVE / DEMO (STANDBY) (for LBT-W5000 / W300 / XB700 / XB500). The demonstration appears automatically the first time you plug in the power cord, or if there is a power outage lasting longer than half a day."
I tested this today, as my LBT-W5000 was in Demonstration Mode. It definitely works. The only catch is (at least on the W5000), and it's a minor one, you have to reset your clock afterwards.

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"Protect" and "Push Power"


i have a sony component push power protect, i have already replace IC but still protect push power

May 02, 2009 | Sony Audio Players & Recorders

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PROTECTOR APPEARS


You cannot disable it. It is meant to protect the unit from producing more power than it is designed to. When you turn it on, turn the volume all the way down. Beyond that consult the back of your manual for trouble shooting and service information.

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The protection function is activated when the speaker wire has a short-circuit or touches the chassis of the vehicle. Wire or insulate the speaker cable properly and press the reset button. (The reset button is that little pinhole button below and to the right of the volume control). If you do this and the "PROTECT" code doesn't disappear, you'll have to consult a service center. Further, if you had this professionally installed, they should be obligated to fix the issue for you (hopefully).

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"Protect" and "Push Power"


Doiuble check your wiresa again for no pinches or shorts, even at the back of the unit. Also try unplugging the unit for 12 to 24 hours. If that does not help, it may be the time to buy a new stereo because that means there is a fault in the output device, unless you kinow someone who can trouble shoot and repair solid state electronics.

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