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4. TROUBLE SHOOTING
Checking Flow
START
Change the battery
Battery is charged?
NO
Is I/O Connector(CN301)
well-soldered ?
YES
Voltage at anode of
D101 = 5.2V ?
YES
Are Q102,D101,R117
well-soldered?
YES
Is Voltage across R117
about 10~100mV?
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
Resolder the
Q102, D101, R117
NO
Replace the
Q102 , D101
NO
Replace the U104 and then
if charging is not working still
replace the main board
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