LG GS290 - Trouble Shooting of Receiver Part

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4. TROUBLE SHOOTING
GS290 Operational Description Revision B
LG Electronics 87/136 LGE Property
4.12 Trouble shooting of Receiver part
Figure 1. Main PCB
ྙ
ྛ
ྚG
Checking Points
ྜ
STAR
T
Check point ྙ
DCXO
Check point ྚ
PLL Control
Setup Test Equipment
Cell Power : –74dBm
EGSM CH30
DCS CH699
Re-Download S/W & CAL
Check point ྜ
RX I/Q Si
g
nal
Checking Flow
Check point ྛ
Mobile SW & FEM