LG -E510 Service Manual page 83

Set the phone Tx is On and
Check TP3 Over 1dBm?
Check TP PA_RO ≥ .6V
Check TP1 Over 10 dBm?
LGE Internal Use Only
PDM is 10
No
No
No
Change the board
Yes
RF Tx Level is OK
Yes
Check MSM77T
Yes
Check RTR685
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4. TROUBLE SHOOTING
Only for training and service purposes