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9.14 GPS Failure
Reference Figure 9-9
U1401
2011-03-21
U8800 Maintenance Manual Basic Version V1.1
GPS failure
Check whether the GPS
antenna is normal?
Y
Replace Z4101&Z4102,
check whether it is normal?
N
Replace U4101,
check whether it is normal?
N
Measure U3701 whether it is
normal?
Y
Replace the U201
U4101
GPS
module
/
&Z4101
match circuit
Semiconductor
/
Sensor
Figure9-9
Huawei confidential. No spreading without permission.
N
Replace the antenna
Y
End
Y
End
N
Replace the U3701
VDD-test
U1401
2.7V
C1404
Internal
Page 49 of 61
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