LG D690 Service Manual page 39

LGE Internal Use Only
Chack ANT Logic
Refer to 4.4
Check TP1
Over 21dBm?
No
Check TP2
Over 21dBm?
No
Check TP3
Over 21dBm?
No
Check TP4
Over -3dBm?
No
Check MT6166
Yes
RX Level is OK
Yes
Check FEM
Yes
Check Duplexer
Yes
Check PAM
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3. TROUBLE SHOOTING
Only for training and service purposes