Samsung SGH-X430 Service Manual page 27

7. SGH-X430 Flow Chart of Troubleshooting
4. Charging Part
Abnormal charging operation
charging) and 뵃 180mV(full
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The pin #17, #18 of
CN800 is TA_VEXT 뵃
5V?
Yes
The pin #7 of U301 is
3.2~4.2V"?
Yes
The ICHRG = 1.4V(during
charging)?
Yes
END
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No
Replace TA or Check CN800
No
Check the U301
No
7-4
Solder again or change R306