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SGH-E850 Flow Chart of Troubleshooting
2-
8
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4. Charging Part
The pin #17, #18 of
CN300 is TA_VEXT
뵃
5V?
Abnormal charging operation
The pin #4 of U103
is "HIGH"?
Replace TA or Check CN300
Check the U101,U103
Check the U102
END
No
Yes
Yes
Yes
No
No
The pin #4 of U102
is "HIGH"?
No
The pin #6 of U102 is
LOW
Check U102 or TA
Yes
The pin #5 of U102 is
LOW(During charging)
The ICHRG = 1V(during
charging)
and
뵃
180mV(full
charging)?
Solder again or change
R118
Check U102 or TA
No
Yes
No
Yes