LG LM-X120HM Service Manual page 23

3.5 GSM, WCDMA, LTE PART
3.5.1 GSM RF PART
Checking RF signal path (SW)
START
Check RF Conductive
YES
Check Antenna path
LGE Internal Use Only
Checking Flow
Change CON1501 and
retest RF conductive
NO
NO
Check RF signal path
Main
Bot
TP1(CON1501)
CON1501
Circuit Diagram
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23
3. TROUBLE SHOOTING
Image
CON1501
Only training and service purposes