LG U8120 Service Manual page 178

C. GSM RF Level Check
Check GSM/DCS Rx
signal level at ③ .
Figure 4-49. GSM/DCS Rx Path
v Agilent 8960 Setting
CW Mode
GSM : -50dBm@Ch65(948MHz)
DCS : -50dBm@Ch700(1842.8MHz)
GSM:-51.5dBm
DCS:-51.5dBm
GSM Rx path OK.
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4. TROUBLE SHOOTING
Z1100
No
Change Ant. SW module (N1000)
Yes
③
③
Z1110