LG GB210 - Page 58

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4. TROUBLE SHOOTING
START
Is I/O Connector(CN300)
well-soldered ?
Voltage at anode of
TP3 = 5V ?
Is Voltage across TP2
LOW?
YES
YES
YES
Battery is charged?
YES
Charging is
properly operating
NO
NO
NO
NO
Resolder the CN300
(Pin 15 : VBUS)
Power on PC
1) Download S/W again
2) Replace the U303
Replace the main board
CHECKING FLOW
Battery is charged?
NO
Change the battery
Charging is
properly operating
YES
□ CASE : USB charge