Question about Sharp CD-BA2100 CD Shelf System

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Protect error how do you remove a "PROTECT" error on a Sharp CD-BA2100 stereo?

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Re: protect error

The 'Protect' error means there is a DC voltage present in the output section(which should not be there). This can be caused by a defective output IC(the big IC on the heatsink). Disconnect the IC and see if the error goes away.Also check the resistors around the IC.

Posted on Mar 22, 2008

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Re: protect error

Try plugging in a pair of headphones. I tried it without the speakers connected and since it found the headphones and they were OK the system came out of protect mode.

Posted on Oct 27, 2008

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Thanks and please do leave positive ratings and feedback for your free answer today.

May 04, 2010 | Sharp CD-BA2100 CD Shelf System

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1 suspect speaker defect
2. suspect wiring defect ensure all your wires are connected up properly and your speaker are in good order
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4 see specialist as this product maybe defective.

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Protect mode

I own a Sharp DVD Micro System XL=DV60 that began to have a "protect" error message when I crank up the volume. Not sure if this applies to your system, but it could be worth a try. Before you proceed, the solution requires you to open up your system (Do not proceed if the unit is still under warranty :)).  
IF you are not experienced in opening up electronic equipment, I suggest you find somebody who does. The error on my system was caused by the cooling fan being stuck or not able to spin. The system has a sensor or sense circuitry wherein, when it detects that the "amplifier" IC heats up, it spins up the fan to cool it down. IF the system detects that the fan is not spinning during the cooling phase, it will give out the "protect" message. Note that the fan only spins when you crank up the volume. Less or 0 volume will shut down the fan due to it's "energy star" feature. One possible reason why using headphones does not show the error, since headphones require less energy that the main speakers, thus the amplifier IC does not overheat. To solve the problem, I cleaned out the dust in the system via a 1 inch wide paint brush (haven't tried the compressed bottled air used to clean computers BUT it might do) and nudged the fan. Played the system w/o a cover and observed the fan operation and so far it has solved the issue. I plan to lubricate the fan shaft with very small amount(less than a drop) of machine oil using a syringe. If it does not work, I plan to see if I could purchase a replacement motor for the fan...
Again, I have not seen the internal layout of CD-BA2100 and not sure if there is a cooling fan. But then again, it's better than having the "protect" error popping up. :) hope this helps....

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2 Answers

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