LG KF390 Service Manual page 76

GSM Power over 31dBm?
DCS/PCS Power over
GSM Power over 31dBm?
DCS/PCS Power over 28dBm?
GSM Power over 31dBm?
DCS/PCS Power over 28dBm?
Check PAM Blok OK?
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Only for training and service purposes
Start
Check TP1
28dBm?
No
Check TP2
No
Check TP3,4
No
No
Replace the PAM
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4. TROUBLE SHOOTING
Yes
GSM/DCS/PCS TX Block OK
Yes
Check (SW1000)
Antenna Mobile Switch
Yes
Check FEM
Yes
Check RTR6280
LGE Internal Use Only