Everytime I plug my stereo in a screen pops up and all it says is "PROTECT" and I'm not sure how to get rid of it. It won't let me do nothing not even turn it off with out pulling the plug. Do you know whats wrong?
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Make sure the speaker wires aren't shorted together and that they are not freyed or cracked...the unit is in protect due to it's internal circuitry sensing a shorted output condition...this is in place to protect the unit should the speaker wires become shorted together. You can remove the speaker wires entirely and then turn on the unit to see if it comes on...if so then I would look at each wire carefully to make sure they look good..of course if the unit comes on and the wires look good then you may have a bad speaker component...Now, if the unit stays in protect after you unplug the speakers, then the unit probably has a blown audio output stage inside the circuitry and will need to be serviced.
The protect mode indicates that a problem was detected in the final stage of amplification and the unit has shutdown to prevent further damage. These units use an AMP-pac part number: VHISTK40270N1 which is available at tritronicsinc.com for $53.09 plus shipping.
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.
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.
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.
It shows "protect" because the amp IC is blown. You would need to replace it or take it to a repair center and have them do it. The repair cost is normally from $125 to $150, depending on the rates of the shop. If you do not have really good soldering skills and know how to dis-assemble and re-assemble these type of units, you really should just take it in for service.
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
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
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.