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Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
4. TROUBLE SHOOTING
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
START
Is I/O Connector(CN200)
well-soldered ?
Check the voltage at
C227 = 5.1V ?
Is the voltage
at pin2 of U202 = 5.1V?
YES
YES
YES
Is Voltage across R220
about 1.2V?
YES
Battery is charged?
YES
Charging is
properly operating
NO
NO
NO
NO
NO
Resolder the CN200
(Pin 12,13 : VCHARGE)
The TA is out of order
Change the TA
Replace the
U202
Replace the
U202
Replace the main board
CHECKING FLOW
Battery is charged?
NO
Change the battery
Charging is
properly operating
YES
4.5 Charging Trouble