Samsung SGH-G810 Servise Manual page 67

10-10. PCS RX
RX ON
AMP--50dBm
FEM100 PIN8
≥ -65dBm
NO
FEM100 PIN6
≥ -70dBm
NO
U100 PIN8,9
≥ -75dBm
NO
U100 PIN44,
45 ≥ -75dBm
NO
Check U100, UCP300
END
YES
Re-solder RFS100,
L102, C119
YES
PIN28=L, PIN27=H
YES
Re-solder or Change
YES
Re-solder or Change
L106,L128,L129
PIN28
PIN27
PIN1
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Check FEM100
PIN1=H
YES
C186, F101
10-53
Flow Chart of Troubleshooting
Check Antenna
Switch Control
Re-solder or Change
FEM100