LG KE600 - Cell Phone Service Manual page 101

5. Trouble shooting
Checking Flow
Check a condition of Matching
components (C326, L303, C332, D308)
Check a condition of Power supply
(R328-2.85V, C337-2.85V)
Check a condition of CLK
Check a condition of
Ear jack connector
A condition is
Good?
Yes
A condition is
Yes
good?
Yes
No
A condition is
good?
Yes
(R337-32k)
A condition is
good?
Yes
Check a condition of
U303 soldering
A condition is
good?
Yes
Replace Main board
change
Finish
No
Replace CN302
Give the additory solder in
No
C326, L303, C332, D308
FM_Radio
Working is good?
No
Replace Main PCB Board
No
FM_Radio
Working is good?
No
Replace U305
No
Replace U303
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Yes
Yes
Yes
Yes