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Flow Chart of Troubleshooting
9-52
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9-2-14. Abnormal GPS Rx Operation
Operate
Signal = -50dBm
@GPS_ANT
Check U300 PIN2
≥
-80dBm
NO
Change or Resolder
U300, L300, L301
YES
NO
Check U300
PIN8 = 1.8V
Check or Resolder
UCP400, C316
YES
YES
END
Change or Resolder
C324, L307
NO
U201
PIN42
≥
-80dBm