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PROTECT DESPLAY CAN NOT RESET ON SHARP MODEL CDK7000

I have a sharp stereo component i am trying to fix problem of having display of '' PROTECT '' and you can not reset, I'm thinking of replacing power transistor STK411 - 550G but my friend has told that it will come the same as he had experience the same.

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Protect display on my sharp mini component system, how do i fix this problem

Posted on Jan 08, 2011

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1 Answer

Stereo turns on shuts off after few seconds


This is a bad power supply. You have to do some serious work at the component level of the unit to fix it.

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My cd-k7000w sharp stereo component appears 'protect' in the monitor..what is that? is that a big problem? how can i fix it?


It indicates there is a short in the audio output ic, first check to make sure there is no shorts in the speaker wires, if okay! the semiconductor must be replaced, I recommend a professional for the job.

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Protect error on model # CD BA200 Sharp Stereo


If you are a technician desolder the Audio amplifier IC,and check if the stereo turn on but with no sound.If the stereo turn on the audio amplifier IC is in short circuit and need to be replaced.
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Jun 05, 2009 | Sharp CD-BA200 CD Shelf System

2 Answers

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


Protect mode is not something that a reset will fix. Basically it indicates that there is a problem with the final output stage of the amplifier. Normally this indicates that the output transistors are defective. In most boomboxes, the amplifier is a single IC. If you can post the model number, I can provide you with the required part and cost.

Thanks,
Dan

Mar 25, 2009 | Sharp Audio Players & Recorders

1 Answer

HELP


You have a blown amplifier IC in the stereo that must be replaced, that is what causes the protect error on the display. It is a good idea to take it to a repair center and have them do it if you are willing to spend about $125 to $150, depending on the rates of the shop, to have it repaired. Otherwise, you will just need to get a new one. There is no other way to fix this problem without replacing the amp IC.

Sorry for the bad news, I wish I could have given you an easy fix, but there just isn't one for this problem.

Let me know if I can be any more help.

Dave

Sep 06, 2008 | Sharp CD-BA150 Shelf System

2 Answers

PROTECT mode


I have a Sharp cd-c2900 home stereo and a "protect" word came up on the lcd?? The stereo is not working now and olnly shows a "protect" word?? Can you please tell me if there is a reset button some where?? Thanks , "Joel" My Email address>> Jovelopa22002@yahoo.com

Jul 17, 2008 | Sharp CD-C2900 Shelf System

3 Answers

My audio system says protect on display


As Shown Here, A Sharp-Associated Repair Person Suggested Replacing A Specific Output IC, As Well As Two Other Small Components. The Total Of The Three Replacement Parts Is $55.43. I Suggest Doing The Repair Yourself, As The Stereo Would Be No Longer In Warranty, Unless You Have No Experience With Working With Electronics. You Could Also Get The Repair Done By Circuit City, Best Buy, Or A Similar Electronc Consulting Business

Jan 10, 2008 | Sharp CD-BA150 Shelf System

1 Answer

Sharp cd player


Most likely cause could be a blown power amp IC.

Nov 14, 2007 | Sharp Multi-System Mini Component System...

1 Answer

PROTECT


The audio output ic's need to be replaced. need to contact and audiotech to do the job . the job require experience to be done. around 60.00 in parts . if you need more help let me know.

Jun 21, 2007 | Sharp CD-PC3500 CD Shelf System

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