Microphone Part - Samsung SGH-L770 Service Manual

Flow Chart of Troubleshooting

10-1-3 Microphone Part

1.
Check the condition of the mic connector
After assembling, check a sound
Check the voltage level of mic bias
After check existence of another part, Check PMIC
2.
Check soldering of the IF connector
After resoldering, check a sound
Check the voltage level of ear-mic bais
After check existence of another part, Check PMIC
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10-6