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2-1-5. Charging
* Test after connecting with Battery
: All 3 terminals in battery should be connected to the phone by using jump-wires.
Abnormal charging part
Check the pin 17
of U403 is around
Check the V_IN
of L300 is around
Is battery fully
charged?
Check the pin3 of
Q300 is High
SCH-E159 Flow Chart of Troubleshooting and Circuit Diagrams
5V
Yes
5V
Yes
Yes
Yes
END
No
Check the TA
No
Check the U301
No
Check the pin3 of
Q300 is Low
Yes
No
2-11
No
Check the Q300
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