Micromax Q452, Руководство по обслуживанию

Страница: 17 / 31

11. MIC no sound:
Solution:

Flash the handset with latest SW

Check the MIC bad or not. then Re-Solder MIC or change it

Check the connection of main board and vice board normally or not.

Check Earphone connector also , If Earphone connector got shorted : MIC & Receiver will not work

Check the MIC work normally or not , Re-Solder the MIC or change it.

Check the LCD FPC Assembly Quality , if not ,Re-Assembly it or change it.

Check the FPC connector soldering
Q
uality , if not ,Re-sold it or change it.

Check the power IC work normally or not. Re-Solder the power IC or change it

Check the CPU work normally or not. Re-Solder the CPU or change it
MIC
MIC FPC
connector
LCD/MIC FPC
Connector
CPU
Power IC