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1-4
STH-N375 Trouble Shooting
1-4. Abnormal external Ear_Mic Jack operation
START
Y
Y
Hock Up Ear_Mic Phone in the Jack(CN101)
Send Command MIC_BIAS_EN enable
Send Command AMP_EN enable
N
Need to check U106
neighbor parts
Y
HS_SENSE=H
N
Need to check U106
neighbor parts
Y
Y
SEND_END=H
Press Button on the Ear-Jack
Ear_Mic phone
Operation Good