Nokia 3710 fold, Руководство по обслуживанию

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3. 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 12 GPS Control dialog box
Select Receiver On 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 will be present.
Receiver On turns on all RF sections of the ASIC and so all LDOs will be on. These checks are part of
GPS
basic checks troubleshooting (page 3–37) .
GPS Quick Test window
The
GPS Quick Test
window has all the necessary functionality for GPS troubleshooting. Ensure the test setup
is correct and click Start Test. (Select Help for further information).
This test will perform three tests in one; Self Test, Oscillator Test and CW Test, and will provide a Pass/Fail
response. The
GPS Quick Test
window also contains a Receiver On button. These checks are part of GPS failure
troubleshooting (page 3–36) .
RM-509; RM-510; RM-511
BB Troubleshooting and Manual Tuning Guide
Issue 2 COMPANY CONFIDENTIAL Page 3 –35
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