Question about Sharp Multi-System Mini Component System Shelf System

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Sharp cd player

Says protect on the display and wont turn on, i have uplugged it and plugged it back in and it just does the same thing. how can i fix this?

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Re: sharp cd player

Most likely cause could be a blown power amp IC.

Posted on Dec 19, 2007

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Cd player say's protect and will not play cd

If protect is coming up on the display, it means the system is detecting a short somewhere on one of the speakers and so is turning the amp off to avoid damage.
Check all the connections at the back of the amp to ensure they are not shorting, and at the back of each speaker, if nothing is found there, check each wire for damage (like squashed or rodent damage).

Jan 27, 2010 | Sharp XL-ES50 CD Shelf System

1 Answer

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.
Good luck

Jun 05, 2009 | Sharp CD-BA200 CD Shelf System

1 Answer

Sharp 5 disc cd player

Email i got from Sharp:

I do apologize for the problems you are having with your audio unit. The protect mode
indicator will appear when the unit detects abnormal resistance in your speaker setup. I
recommend removing any additional speaker wire that may be added to the unit to extend the
factory speaker lengths. Also, make sure you have all the factory speakers attached, and all
non-factory speakers removed. Finally, please unplug you unit from he wall for 1 hour after
checking all of the above suggestions to completely reset your unit.
If you are still having issues after doing all of the steps mentioned above, the unit may need
to be evaluated by a Sharp Authorized repair center.

Oct 28, 2008 | Sharp XL-MP60 Shelf System

1 Answer

My Sharp model no. CD-BA250 is displaying "protect". It will not turn off on or anything!! How do i clear it out to fix the problem.

Disconnect your speaker boxes. If the "protect" error goes, then the speakers or wires may be at fault. If the error remains, most likely the audio output IC is blown.

Sep 17, 2008 | Sharp CD-BA200 CD Shelf System

1 Answer


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.


Sep 06, 2008 | Sharp CD-BA150 Shelf System

1 Answer


The protect message indicates that there is a problem with the output amplifier section. Verify that the speaker wires are not shorted together. If they are fine, there is an internal problem that is usually the output transistors. Your specific model I believe uses an amplifier pac (STK411-230). It should be replaced. It is available from using part number VHISTK4113E-1 at a cost of $83.04.


Jul 21, 2008 | Sharp CD-C662 Shelf System

1 Answer

Protect in dispaly

The word PROTECT displays when I plug it the unit. How do I fix it?

Dec 08, 2007 | Sharp Audio Shelf Systems

1 Answer

Says Protect on the screen when i plug it in

Most likely cause could be a blown power amp IC. The part number is STK402-040.

Nov 06, 2007 | Sharp Multi-System Mini Component System...

2 Answers

Sharp CD-BA300

An audio output IC may be defective. This set carries two output IC's.

Aug 14, 2007 | Sharp CD-BA300 CD Shelf System

3 Answers

Problem with Sharp CD-BA200

I just called Sharp customer service line. I was told it's a "problem with the software"...whatever the hell THAT means, but it has to be serviced.

Aug 23, 2006 | Sharp CD-BA200 CD Shelf System

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