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We just finished repairing, the defective 3.5mm headphone jack part. Now we are repairing the ControlTalk button that has malfunctioned due to broken circuit or broken one of the wires inside the ControlTalk compartment.
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Let's begin. Pull of the Talk pane off using a plastic spade or opening tool by lifting it gently up. Then pull off the middle part carefully. You should be very careful here because ControlTalk compartment doesn't have any external screws or binders to hold this thing. Only the inbuilt tinny aligns that hold it together. They are really fragile and break easily.
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Once you reach the base where you will see the circuit board, examine if there is a broken circuit. Look carefully. Take your time. Don't just jump to the conclusion. It may just have circuit broken or just the wire come off or both. Or just the talk responser is stiffen with excess moisture and dust. Diagnose the case and do accordingly.
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Common scenario is either broken circuit or wire. Solder the circuit carefully if such is the case. If White wire or any of the wires is apart from the designated points, solder it carefully. A little excess soldering will melt the neighboring elements. If you accidentally dropped or soldered on the plate and incorrectly, be very patient to take it apart securely. A little shake may destroy the whole plate or pull off the elements. Stay focused during this process.
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