3. TROUBLE SHOOTING
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3.7.1 Checking RF DRx Level
START
Replace Main B’d
Check TP1,2,3,4
Signal Exist?
Check TP5,6,7,8
Signal Exist?
Check TP9
Signal Exist?
Check TP10,11
Signal Exist?
SAW Filter is OK.
Diplexer, SPDT is OK.
GPS LNA&Diplexer
Module(U1103) is OK.
Diplexer is OK.
YES
YES
YES
YES
NO
NO
NO
NO