LG KE520 Service Manual page 67

4. TROUBLE SHOOTING
Check is the CN602
Is well-soldered?
R624(main PCB)
Is well-soldered?
Check is the connection of
Main, Main FPCB, Slide Key ?
Check the Main FPCB
Main FPCB is OK?
U102( Main) check ?
Booting is operating properly
LGE Internal Use Only
START
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
R624
CN602
- 68 -
Re-solder the CN602
Re-solder
R624(main PCB)
Connect the Main, Main FPCB, Slide Key
Replace Main FPCB
Replace the U102(Main)
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