Lge Internal Use Only - LG -A230 Service Manual

CHECKING FLOW
START
Check of ear_jack condition
A condition is good?
YES
Check condition of
matching components
(ZD200,L200,C208)
A condition is good?
YES
Check condition of
Audio components
(C204,C264)
YES
A condition is good?
YES
Check FM condition
YES

LGE Internal Use Only

NO
Replace J200
NO
Give the additory
solder in
(ZD200,L200,C208)
NO
Replace C204,C264
NO
Replace
U101
FM_radio will
work properly
- 109 -
4. TROUBLE SHOOTING
START
Check of earless condition
NO
Check condition of
ANT401 connection
A condition is good?
YES
Check Bias Voltage TP1 , TP2
A condition is good?
YES
Check condition of
Wireless FM Audio.
A condition is good?
YES
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Only for training and service purposes
Replace
FM Antenna
NO
Re-soldering
Q400,Q401
NO
Replace U101