LG KM380t Service Manual page 68

START
Yes
18pin IO(CN301)
Is soldered ?
Yes
Source pin of
VA408 = 5.6V ?
Yes
Output pin (10)
of C333=4.2V?
Yes
Battery voltage
is over 3.35V?
Yes
Charge is operating properly
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
No
Resolder the
CN301
The TA can be
No
broken
Change other TA
then retest
No
Check solder
U303 or replace it
No charging until
battery
Voltage goes up to
3.35V
- 69 -
6. Trouble shooting
18pin
IO(CN302)
TP1
VA(408)
LGE Internal Use Only