Trouble Shooting; Rx Trouble - LG C1100 Service Manual

4. TROUBLE SHOOTING

4.1 RX Trouble

Test Point
Checking Flow
1
2
RX Check Area
START
HP8922 : Test mode
62 CH, 7 level setting (TCH)
62 CH, -60dBm setting (BCCH)
Spectrum analyzer setting
Oscilloscope setting
1.Check
Regulator Circuit
2.Check
VCTCXO Circuit
3.Check
Control Signal
4
3
5
6
Figure 4-1.
Redownload SW, CAL
- 43 -
4. Trouble Shooting
4.Check
Ant SW &
Mobile SW
5. Check
Saw Filter
Circuit
6. Check
RX IQ