LG GD510 - Trouble Shooting of Transmitter Part

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Only for training and service purposes
5. Trouble shooting
GD510 Operational Description Revision A
LG Electronics 87/116 LGE Property
5.13 Trouble shooting of Transmitter part.
Figure 15. Main PCB
Figure 16. Main PCB
{wXG
{wZG
{wYG
G
Checking Points
{w[G
{w]G
{w\G
Check point {wX
G
Check point
{wYG G
Setup Test Equipment
Cell Power : –74dBm
EGSM CH30
DCS CH699
Check point {wZ
TX I/Q Si
g
nal
Re-Download S/W & RF
CAL
Check point {w[G G
Transceiver
Check point TP5
PAM Control
Check TP6
FEM & Mobile
SW
Checking Flow