Only For Training And Service Purposes - LG MG295 Service Manual

4. TROUBLE SHOOTING
Checking Flow
LGE Internal Use Only
START
Change the battery
Battery is charged?
NO
Is I/O Connector(CN301)
well-soldered ?
YES
Voltage at anode of
C140 = 5.2V ?
YES
Is Voltage across R110
about 0V?
YES
Is Voltage across R108
about 0V?
YES
Battery is charged?
YES
Charging is
properly operating
- 54 -
YES
Charging is
properly operating
NO
Resolder the CN301
(Pin 4,5 : VCHARGE)
NO
The TA is out of order
Change the TA
NO
Replace the
U103
NO
Replace the
U102
NO
Replace the main board
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Only for training and service purposes