Microphone Part (Main Mic) - Samsung GT-I9300 Service Manual

Level 3 Repair

8-3-6. Microphone Part (Main MIC)

Check main microphone function
in voice call receiver mode
or in Voice Recording mode
Yes
Check PCB where main MIC No
is placed Change the PCB module
for any damage
Yes
No
Check the voltage at
Resolder or replace U600
C601 = 2.8V
Yes
No
Check component soldering
Resolder or replace C633, C637
statuses of C633, C637
Yes
END
8-20
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