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7-
4
SGH-V200 Flow Chart of Troubleshooting
4. Charging Part
The pin #17, #18 of
CN300 is TA_VEXT
ㆃ
5V?
Abnormal charging operation
The pin #3 of U101 is
"low"?
Replace TA or Check CN300
Check the U101
Check the Q101
END
No
Yes
Yes
Yes
No
No
The pin #3 of Q101 is "low"?
The pin #5 of U101 is
3.2~4.2V"?
Check the U101
No
Yes
No
Solder again or change R111
Yes
The ICHRG = 1V(during
charging) and
ㆃ
180mV(full
charging)?