LG GT350 - Page 66

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4. TROUBLE SHOOTING
LG Electronics 63/115 LGE Property
1. Don’t use Heat Gun
2. Replace main PCB
STAR
T
“PWRON” signal
Check 3 pin of Q201
“_RESET” signal
Check TP3 of U101
Check the all LDO’s
output
Is it correct?
Replace main PCB
Check the
PWR_KEY_IN or TP2,
or
replace
Q201
Check solder
U101 or replace it
Check solder
U201 or replace it
Check solder X601
or replace it
Yes
Yes
Yes
Yes
Yes
No
No
No
No
Q201
Change Battery or
Check Battery
connector
Battery Voltage,
higher than 3.35V ?
No
TP1
U101
TP2
U201
Chan
g
e Batter
y
Connector
X500
Is the 26MHz
clock From X601
signal correct?