LG KE600 - Cell Phone Service Manual page 78

U203
START
Connect power
supply to the
DUT
Vbat = over 3.35V
Yes
"PWRON"
signal
Yes
"RESETn"
signal
Yes
Check the all
LDO's output
Yes
Is the 26MHz
clock From
Yes
Replace main PCB
U206
- 79 -
5. Trouble shooting
No
Check the
RPWRON,
replace U203
No
Check solder
U206 or replace it
No Check solder
U201 or replace it
Check solder
No
X601, U602
or replace it
U201
U602
X601