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Checking Flow
Copyright © 2008 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
Voltage of
FL200 = 5.2~5.4V ?
YES
Are U503, FL200, R200
well-soldered?
YES
Is Voltage across C226
about 4.1~4.3V ?
YES
Battery is charged?
YES
Charging is
properly operating
4. TROUBLE SHOOTING
YES
Charging is
properly operating
NO
Resolder the CN200
(Pin 12,13 : V_TA)
NO
The TA is out of order
Change the TA
NO
Resolder the
U503, FL200,R200.
Resolder the C226 and then
NO
if charging is not working still
replace the U202.
NO
Replace the U104 and then
if charging is not working still
replace the main board
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