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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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.
And they didn't tell you how??? Call them back and ask for the answer AND a link to the manual since this source comes up with nothing on that model using AUDIO / CD-BA300 / ANY as a search argument...
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.
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.
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