LG KU730 Service Manual page 77

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4. TROUBLE SHOOTING
For testing, Max power of WCDMA2100MHz is needed.
Set the Phone Tx is ON
and PDM is 450
Check TP1
Over 21dBm ?
NO
Check TP2
Over 19dBm ?
NO
Check TP3
Over 16dBm ?
NO
Check TP4
Over -5dBm ?
NO
Change the board
YES
RF Tx Level is OK
YES
Check FEM
YES
Check Duplexer
YES
Check PAM Block
Refer to 3 5 2
- 78 -

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