LG KG110 Service Manual page 45

4. TROUBLE SHOOTING
Start
Battery
Voltage>3.35V
Check the contact of
Power key or Dome
Check the following pins of U101
C114=1.8V?
C116=2.75V?
C112=2.8V?
C127=1.8V?
Logic level of Pin3 of
D101=High?
Phone will power on
44
Charge or Change
Battery
Change Dome
Replace U101
Download Software