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Flow Chart of Troubleshooting
9-2-17. GPS
Operate GPS
Yes
Abnormal
Resolder ANT300,L303
Check ANT300
,L301
L303,L301
Normal
GPS Signal Input: -50dBm
@L304
Replace F300
Check C308 >= -52dBm?
No
Yes
Check R301= High ?
Replace UCP400
No
Yes
Replace U300
Check C309 >= -53dBm?
No
Yes
The End
9-78
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