LG C1100 Service Manual page 51

4. Trouble Shooting
(6) Checking RX IQ
Test Points
C343 C342
Waveform
Checking Flow
Check C342, C343.
Check if there is
Any Major Difference
• Refer to Graph 4-4
Figure 4-7.
Redownload the Software
Circuit Diagram
Graph 4-4.
No
Similar?
Yes
And calibrate
- 50 -
C342 39p
C343 39p
Replace U301
QP
QN
IP
IN