Service Excellence Beyond Imagination
SWA-CS Content Innovation
GPS/GLONASS
Step
Check point
Result value
Defect point
1
Confirm the defect symptom
(Check the turned on GPS function)
Turned on
Go to the next step
Turned off
Turn on
2
Check the status Antenna and GPS components.
- ANT200, C226, C233, L209, F202, C234, L205
Broken, dust, corrosion
ANT200
GPS component
Normal
Go to the next step
3
Power on with a power supply
(power supply voltage : 3.8V)
-
-
4
Check the voltage of C245
Notice. It should be measured when the GPS path
is activated on
C245 = 2.75V
Go to the next step
If not the correct value
PMIC(U401)
5
Check the voltage of C241
Notice. It should be measured when the GPS path
is activated on
C241 = 1.8V
Go to the next step
If not the correct value
AP(UCP300)
6
Check the clock of C156
Notice. It should be measured when the GPS path
is activated on
C156 = 19.2Mhz
(Same signal compared with
a good PBA)
GPS IC(U102)
GPS LNA(U200)
If not the correct value
OSC200