LG CU920 Manual page 100

4. TROUBLE SHOOTING
If G850&G900 ov er 31d Bm?
If DCS/PCS over 28dBm ?
If G850&G900 ov er 29d Bm?
If DCS/PCS over 25dBm ?
Check P AM Block OK?
Refer to Chapt er 3.8.2
Check Soldering of PAM Block
If Problems still exit,
Problems resolved?
Change the Board
LGE Internal Use Only
START
Check T P1
NO
Check T P2, TP3
NO
NO
replace the PAM
NO
NO
Fig. 4.8.1.3 Check Flow of the GSM TX Block
YES
G850/900/DCS/PCS Tx is OK.
Check the other part
YES
Check the ANT SW
Module
YES
Check the RTR6275
YES
G850/900/DCS/PCS Tx is OK.
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