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4. TROUBLE SHOOTING
4.22.5 Checking RF Tx Path
A. GSM Tx path Level
U103
RF3300
C205
FEM Output
④
U200
GSM/EDGE PAM
(+Ant. SW)
②
R116, R121
GSM900
①
/DCS/PCS Tx
③
SW200
U200 pin 4
RF connector
Vapc
Figure 4-22. Test Points of GSM/DCS/PCS Tx Path
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Table of Contents
Troubleshooting
