LG GT350 - Page 69

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4. TROUBLE SHOOTING
LG Electronics 66/115 LGE Property
STAR
T
5pin IO(CN301)
Is soldered ?
Source pin
of U301 = 5.1V ?
Resolder the CN301
Charge is operating properly
T
he TA can be
broken
Change other TA
then retest
Check solder
U301 or replace it
Waiting until
battery
Voltage goes up to
3.4V
Yes
Yes
Yes
Yes
Yes
No
No
No
No
Battery thermistor
value
is about 10K?
Change the Battery
retest
No
5pin IO(CN301)
U301
TP2: Output pin
U301
TP1: Source pin
Output pin
of U301 =4.2V?
Battery voltage is
over 3.4V?