5.13.7 Trouble Shooting of Transmitter Part
Checking Flow
Setup Test Equipment
Cell Power : -7 4dBm
EGSM CH30
DCS CH699
Check point
VCTCXO
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
Checking Points
Figure 17. Main PCB
Figure 18. Main PCB Bottom
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5. Trouble shooting