Nokia 500, Руководство по обслуживанию

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GPS control
Prerequisites
A flash adapter with RF connector connected to a PC with Phoenix service software is required. The GPS signal
should be connected to the RF connector. Calibrate the signal level with a known good phone. Signal level
will be high (approx -45 dBm) because it is a leakage connection.
Context
Use the following to test GPS using Phoenix.
Steps
1. Place phone to Flash Adaptor.
2. Start Phoenix service software.
3. From the File menu, select Scan Product and check that the correct product version is displayed.
4. From the Testing menu, select GPS Control. This opens up
GPS Control
dialogue box, as shown in the
figure below, and enables the GPS.
Figure 14 GPS Control dialogue box
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.
RM-750
BB Troubleshooting and Manual Tuning Guide
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