LG KG110 - Messages; Writing and Sending Text Messages

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4. TROUBLE SHOOTING
4.3.3 Check TX I/Q signal
QP
QN
C433
39p
IN
IP
C421
39p
Figure 4-12
C433
C421
Graph 4-8
Q signal
I signal
YES
Check C433,C421
Check if there is any
Major Different
? Refer to Graph 4-8
NO
Replace U101
Similar ?
See next page to check
TX ramp control signal