LG KG270 Service Manual page 77

4. TROUBLE SHOOTING
Checking Flow
Check the voltage of R124
START
I/O Connector(CN301)
Is well-soldered ?
YES
Is The Voltage of C126
5.2V ?
YES
The Voltage of C128
Is 2.8V
YES
High or Low?
YES
Battery is charged?
YES
Charging is
properly operating
NO
Resolder the CN300
Pin 12,13 : VCHARGE
NO
The TA is out of order
Change the TA
LOW
Replace the
U101
NO
Check the U102
The battery may have
NO
problems.
Change the battery.
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