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4. TROUBLE SHOOTING
Check TCXO Block Refer to 1.
Check TP1
If GSM over 1 dBm?
If DCS/PCS over 28 dBm?
GSM/DCS/PCS Tx is OK
Check other part
Yes
No
Change the board
Check TP2,
If GSM(TP2) under 6 dBm?
If DCS/PCS(TP) over 6 dBm?
Check ANT SW Block (ASM+EDGR PAM)
Refer to 1.4
Yes
No
Check RTR & PAD
Check soldering and components
No Problem
Still exist Problem
START
No