Trouble Shooting Of Transmitter Part - LG GX500 Service Manual

4. TROUBLE SHOOTING
GX500 Operational Description

4.13 Trouble shooting of Transmitter part

Checking Points
Setup Test Equipment
Cell Power : –74dBm
EGSM CH30
DCS CH699
Check point
X-TAL
Check point
PLL Control
Check point
TX I/Q Signal
Check point
Transceiver
Check point
PAM Control
Check
FEM & Mobile
SW
Re-Download S/W & RF CAL
LGE Internal Use Only
LG Electronics
Checking Points
Figure 4-44. Main PCB
Figure 4-45. Main PCB SIM2
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