LG U8500 Service Manual page 82

For testing, Max power output is needed.
Set the Phon e Tx is ON
and PDM is 450
YES
Check TP1
Over 21dBm ?
NO
YES
Check TP2
Over 19dBm ?
NO
YES
Check TP3
Over 16dBm ?
NO
YES
Check TP4
Over -5dBm ?
NO
Chan ge th e board
- 83 -
4. TROUBLE SHOOTING
RF Tx Lev el is OK
Check FEM
Check Du ple xer
Check PAM Block
Refer to 3.5. 4