Nokia 5800 - XpressMusic Smartphone - WCDMA, Руководство по обслуживанию

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The two self tests described above provide a simple means of ensuring the Host engine is able to
communicate with the WLAN module and check the interface to BT. A more detailed WLAN performance
test is covered in WLAN functional test section.
WLAN functional tests
On/Off test
From the testing toolbar select WLAN Configuration option. This opens the WLAN configuration dialogue
box below. Selecting the Power state option button (as indicated), the WLAN can be turned ON and OFF:
1 With Power State set to OFF, measure the dc power supply current consumption of the flash adaptor.
2 Next return the Power state to ON and re-measure the dc power supply current of the flash adaptor.
The difference between the currents in (1) and (2) should be between 60 and 90 mA When WLAN is ON, the
firmware has been downloaded and the WLAN module is in the receive state. When OFF WLAN is powered
down.
TX tests
From the testing toolbar select WLAN Tx Test option shown below. This test can be used to verify TX
configuration and functionality. The default settings are sufficient for testing the TX operation, although
other channels and data rates are equally suitable. To start the test, select the Start option button:
1 Measure and record the TX ON current consumption of the Phone/ flash adaptor.
2 Monitor the WLAN TX spectrum on a Spectrum analyser either using a co-ax cable connected to the WLAN
TX antenna port or by making a radiated test with a suitable WLAN antenna connected to the spectrum
analyser input. (When making a radiated test ensure that other WLAN devices are not transmitting as
these may be detected as well, confusing the result).
3 To finish the test select the Finish option button
4 Measure the TX OFF current consumption of the phone/flash adaptor.
RM-356
RF troubleshooting
Issue 1 COMPANY CONFIDENTIAL Page 4 –57
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