LG C1150 Service Manual page 64

(6) Checking TX IQ
Test Points
Waveform
Circuit Diagram
C323 C325
Graph 4-9
1
RXQN
2
RXIP
3
RXIN
4
TXIP
5
TXIN
6
TXQP
7
TXQN
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4. TROUBLE SHOOTING
C321 1000p
13MHZ
QP
C323 39p
QN
IP
C325 39p
IN