Filter
Top Products
- 74 -
LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
4. TROUBLE SHOOTING
ͽͶ͑ͺΟΥΖΣΟΒΝ͑ΆΤΖ͑ΟΝΪ
^ZVXZZ
4. TROUBLE SHOOTING
CHECKING FLOW
START
Check Battery Voltage
> 3.35V
Push power-on key
And check the level change
into high of POWERKEY
Check the voltage of
The LDO outputs at U102
Is the phone power on?
The phone will
Properly operating.
Charge or Change Battery
Check the contact of power key
Or dome-switch
Replace U101
VCORE=1.2V, VPMU=1.2V. VRTC=2.3V, VUSB=3.1V
VAUX=2.85V,VMMC=2.85V, VDD_RF2=2.5V,
VDDMS=1.3V, VDDXO=1.3V, VDDTDC=1.3V
Does it work properly?
Replace the main board
YES
YES
YES
YES
NO
NO
NO
NO
NO
Replace U101 and
Re-download software