Rf Part Trouble Shooting - LG L240 Service Manual

4.2 RF Part Trouble shooting

4.2.1 RF Receiving Path Trouble Shooting
SW701
U701
SW701
1
U704
U703
U702
3
FL701
4
X701 2
5
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4. TROUBLE SHOOTING
START
HP8960 : Test mode
190 CH, 5 level setting (TCH)
190 CH, -60dBm setting (BCCH)
Spectrum analyzer setting
Oscilloscope setting
1. Check
Regulator Circuit
2. Check
VCTCXO Circuit
3. Check
PAFEM Circuit
4. Check
SAW Bank Circuit
5. Check
Transceiver Circuit
Re-download SW & CAL