LG LG-P970 - Page 129

4. TROUBLE SHOOTING
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Check TCXO Block Refer to 1.3
Check TP1
If GSM over 31 dBm?
If DCS/PCS over 28 dBm?
GSM/DCS/PCS Tx is OK
Check other part
Yes
No
Change the board
Check TP2, 3
If GSM(TP2) under 7 dBm?
If DCS/PCS(TP3) over7 dBm?
Check ANT SW Block (ASM+EDGR PAM)
Refer to 1.4
Yes
No
Check PMB5703 & PAD
Check soldering and components
No Problem
Still exist Problem
START
No
Schematic of GSM/DCS/PCS Tx Block