Gps Failure Troubleshooting - Nokia RM-626 Service Manual

4. From the Testing menu, select GPS Control. This opens up
figure below, and enables the GPS.
Select Idle to confirm the GPS is enabled and is in idle mode; at this point all clocks should be present,
GPS_En_Reset & SleepX should be high, and Vdd_Dig, Vcc_TCXO & Vcc_PLL/VCO will be present.
Receiver On turns on all RF sections of the ASIC and so all LDOs will be on.

GPS failure troubleshooting

Context
GPS troubleshooting is broken down into two parts: general GPS failure troubleshooting and GPS basic checks
troubleshooting. The GPS failure troubleshooting flow can be followed and, where applicable, will feed into
the GPS basic checks troubleshooting flow.
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Figure 20 GPS Control dialogue box
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BB Troubleshooting and Manual Tuning Guide
GPS Control dialogue box, as shown in the
RM-626
Issue 1