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5-3 Charging Part
Abnormal charging part
Check the CN4-1 pin 17,18 > 4.9 V ?
Check the U305 pin 3 > 4.9 V ?
R342(CHG_ON side) = "L" ?
Check the U305 pin 5
Flow Chart of Troubleshooting and Circuit Diagrams
Yes
Yes
Yes
Yes
4.2V ?
Yes
END
No
Replace TA
No
Resolder C339
No
Resolder R342
No
Resolder components around
U305
5-5
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