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LGE Internal Use Only
Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
4. TROUBLE SHOOTING
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4. TROUBLE SHOOTING
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 U100
Is the phone power on?
The phone will
Properly operating.
Charge or Change Battery
Check the contact of power key
Or dome-switch
Replace U100
Does it work properly?
Replace the main board
YES
YES
YES
YES
NO
NO
NO
NO
NO
CHECKING FLOW
Replace U100 and Re-download software
4.4 Power On Trouble
Содержание GD350
Страница 1: ...Service Manual Model GD350 Internal Use Only Service Manual GD350 Date JANUARY 2010 Issue 1 0 ...
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