LG KE970 Service Manual page 101

5. Trouble shooting
5.11.11 Checking Transceiver Output Signals
VBIAS
LBAND_PAM_IN
HBAND_PAM_IN
R417
NA
Checking Points
MODE
GMSK
8PSK
R409
R410 0
0
R418 R412 R413
C438
NA NA NA
0.1u
U402
Transceiver Output
Fixed
Ramp Burst Control
FE2
33
VBIAS
34
VDDTX1V5
35
TX1
36
TX2
37
VDDTX2V8
38
VDDMIX2V8
39
R415
C439
GND3
40
10
0.1u
GND4
41
LBAND PAM IN
HBAND PAM IN (DCS/PCS)
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VDDRX2
VDDRX1
U403
VCO_
PMB6272
VDDVCO2
VDDXO2
FSY
GN