LG KP260 Service Manual page 53

4. TROUBLE SHOOTING
FM Radio
CHECKING FLOW
LGE Internal Use Only
START
Check of ear_jack condition
A condition is good?
YES
Check condition of
matching components
(L300, C307)
A condition is good?
YES
Check Bias Voltage
2V8_BT at TP1
YES
Check BT_32k at TP5?
YES
FM_Radio work is good?
YES
FM_radio will
work properly
- 54 -
NO
Replace CN300
NO
Give the additory solder in
L300, C307
NO
Replace
U203
NO
Replace
U103
NO
Replace
U200
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes