Charging Trouble - LG GM210 Service Manual

4.5 Charging Trouble

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