Samsung STH-N271 Service Manual page 9

1-5. Abnormal external Ear_Mic Jack operation
Hock Up Ear_Mic Phone in the Jack(CN101)
Send Command MIC_BIAS_EN enable Send
START
Y
Command AMP_EN enable
Audio set Path=HS
(Test mode:187)
Y
HEADSET_SENSE=H
Y
Press Button on the Ear-Jack
Y
SEND_END=H
Y
Ear_Mic phone
Operation Good
SAMSUNG Proprietary-Contents may change without notice
N
Need to check Q101,
CN101 & neighbor parts
N
Need to check Q102,
CN101 & neighbor parts
2-5
STH-N271
Trouble Shooting