The solution provides the detailed info of how the built in microphone on Nokia X2-01 PCb board were being connected to other components. It may help for to easily track down and locate the problem if the said microphone failed to work.
The Nokia X2-01 used an ordinary two pin microphone that is mounted or attached at the lower part of the PCB board, unlike other newly released device that uses a five pin digital microphone. Troubleshooting this kind of microphone is a little bit easier.
To begin troubleshooting , you may first inspect the whole microphone surroundings or connected components. Clean it if there is an oxidation build up occurs. You can check the microphone by using a multimeter. The connected components which are labeled according to their desired values are also a big help. You may also check and trace the connection line paths from component to component such as capacitors, resistors and filter coils.
Nokia X2-01 MIC Not Working Problem Solution