- 88 -
LGE Internal Use Only
Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
4. TROUBLE SHOOTING
__VX[W
ʹΠΡΪΣΚΘΙΥ͑ι ͣͨ͑͡͡ͽ͑ͶΝΖΔΥΣΠΟΚΔΤ͑͟ͺΟΔ͑͑͟ͲΝΝ͑ΣΚΘΙΥ͑ΣΖΤΖΣΧΖΕ͑͟
ΟΝΪ͑ΗΠΣ͑ΥΣΒΚΟΚΟΘ͑ΒΟΕ͑ΤΖΣΧΚΔΖ͑ΡΦΣΡΠΤΖΤ
ͽͶ͑ͺΟΥΖΣΟΒΝ͑ΆΤΖ͑ΟΝΪ
4. TROUBLE SHOOTING
A condition is good?
START
Check of ear_jack condition
NO
YES
CHECKING FLOW
FM_radio will
work properly
Check condition of
matching components
(L201, C242, C217)
A condition is good?
NO
YES
Give the additory
solder in
L201, C242, C217
Replace CN201
Check Bias Voltage
VDD_FMR
YES
NO
Replace
U102
START
Check of earless condition
Check condition of
CN201 connection
YES
A condition is good?
YES
NO
Replace CN201
NO
Replace U205
A condition is good?
Check Bias Voltage
MUIC(U205)
Check F Input & output
signal at MUIC
YES
NO
Replace U102
A condition is good?