LG KG920 Service Manual page 76

4.1.1 RX Trouble
CHECKING FLOW
START
HP8960 : Test mode
62 CH, 7 level setting (TCH)
62CH, -60dBm setting (BCCH)
Spectrum analyzer setting
Oscilloscope setting
(1) Check
regulator circuit
(2) Check
VCTCXO
(3) Check
Mobile SW
&FEM
(4) Check
RX IQ
Redownload SW or
Do calibration again
Figure 4-2.
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4. TROUBLE SHOOTING