LG U8110 Service Manual page 176

B. GSM I/Q Signal Check
Idata
(TP1142)
VDIG_HERTA
R1150
Qdata
DCLK
(TP1141) (TP1143)
Figure 4-46. Herta IQ data and DCLK
Figure 4-47. Ingela IQ signal
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4. TROUBLE SHOOTING
I Data
Q Data
DCLK
QRB
QRA
IRB
IRA
QRB
(R1103)
QRA
(R1104)
IRB
(R1105)
IRA
(R1106)