LG CE110 Service Manual page 64

Charge is operating properly
U300
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Only for training and service purposes
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I/O Connector(CN300)
Is well-soldered?
(RED LED on)
Yes
Voltage at pin 12,13 of
5.1V ?
Yes
Voltage check of 5.1V ?
(C301)
Yes
CHG_EN Pin is High?
Yes
Voltage across R505
Is about 10~120mV ?
Yes
Battery ok?
Yes
5.1V Check
C301
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4. TROUBLE SHOOTING
No
Resolder the CN300
No
The TA is out of order
Change the TA
No
Resolder U300
No
SW Redownload
No
Replace U502
No
Change the battery
U502
10~120mA
Check
LGE Internal Use Only