User Guide

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SGH-E610 Flow Chart of Troubleshooting and Circuit Diagrams

2-7

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4. Charging Part

Check U302

Check the U301

Check the Q303

YES

Abnormal charging part

END

YES

Check the pin 17,18 of

CON502 VEXT is > 4V

Check the pin 2 of

U303

is 'LOW'

Check the pin 3 of

Q303

is 'LOW'

Check the pin 5 of

U302

is '3.2~4.2V'

Check if ICHRG is 1V

(during charging) and

around 180mV(full

charging)

YES

Check the U302

Resolder or change R317