Introduction
This guide will instruct you to replace the onboard microphone if it is faulty.
Tools
Parts
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            Unscrew the 7.0mm ph#0 screw on the underside where the cable connects. 
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            Lift the plastic where the cable is connected to the viewfinder. 
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            Disconnect the cable inside by pulling it apart. 
 
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            Unscrew the two 7mm ph#0 screws on the underside of the viewfinder assembly. 
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            Lift the viewfinder plastic assembly up. 
 
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            Lift the microphone circuit board straight up. 
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            Unclip the cable connected to the circuit board. 
 
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            Turn the microphone circuit board over. 
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            Unscrew the two Ph#0 screws holding the plastic housing on the circuit board. 
 
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            Desolder the metal protective housing using a soldering iron. 
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            Desolder the microphone and replace it. 
 
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To reassemble your device, follow these instructions in reverse order.