LG -P970 Service Manual page 129

Schematic of GSM/DCS/PCS Tx Block
START
Check TCXO Block Refer to 1.3
No
Check TP1
If GSM over 31 dBm?
If DCS/PCS over 8 dBm?
No
Check TP, 3
If GSM(TP) under 7 dBm?
If DCS/PCS(TP3) over7 dBm?
No
Check PMB5703 & PAD
Still exist Problem
Change the board
LGE Internal Use Only
Yes
GSM/DCS/PCS Tx is OK
Check other part
Yes
Check ANT SW Block (ASM+EDGR PAM)
Refer to 1.4
No Problem
Check soldering and components
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4. TROUBLE SHOOTING
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