Charging Part - Samsung SGH-T508 Service Manual

5-3 Charging Part

Abnormal charging part
Check the CN301 pin 17,18 > 4.9 V ?
Check the U103 pin 3 > 4.9 V ?
R103(CHG_ON side) = "L" ?
Check the U106 pin 5
5-5
Yes
Yes
Yes
Yes
4.2V ?
Yes
END
No
Replace TA
No
Resolder U103, U915
No
Resolder R103
No
Resolder components around
U103
Flow Chart of Troubleshooting and Circuit Diagrams