LG GX500 - Trouble Shooting of Receiver Part

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4. TROUBLE SHOOTING
GX500 Operational Description Revision A
LG Electronics 94/143 LGE Property
4.12 Trouble shooting of Receiver part
Checking Flow
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 Signal
Check point ྛ
Mobile SW & FEM
Fi
g
ure 4-28. Main PCB SIM1
Figure 4-29. Main PCB SIM2
ྙ
ྚ
ྛ
ྜ
ྙ
ྚ
ྛ
ྜ
Checkin
g
Points