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Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
5. Trouble shooting
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Yes
Yes
No
START
18pin IO(CN200)
Is soldered ?
Source pin
(
TP1
) of FL200
=
5.6V
?
Resolder the
CN200
The TA can be
broken
Change other TA
then retest
Yes
No
No
Output pin
(
TP2
)
of C212=4.2V?
Check solder
U201 or replace it
Yes
Battery voltage
is over 3.35V?
No
charging until
battery
Voltage goes up to
3.35V
TP1
TP2
Charge is operating properly
Yes