4. TROUBLE SHOOTING
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Only for training and service purposes
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Set the phone Tx is On and
PDM is 10
Check TP3 Over 1dBm?
RF Tx Level is OK
Yes
No
Change the board
Check TP PA_RO
≥
.6V
Check MSM77
Yes
No
Check TP1 Over 10 dBm?
Check RTR685
Yes
No