Nokia E62 Service Manual page 179

RM-88
RF Troubleshooting and Manual Tuning Guide
5. When the values have been written to the phone memory, click the Finish button to end the tuning.
6. Change band to GSM850 and repeat steps 4 to 5.
7. Change band to GSM1800 and repeat steps 4 to 5.
8. Change band to GSM1900 and repeat steps 4 to 5.
9. To close the tuning window, click Close.
Next actions
Tuning sliders should be close to the center of the scale after the tuning and within the limits specified in
the table below. If they are not within the limits, check Tx IQ quality manually.
GSM850
I DC offset / Q DC
offset
Ampl
Phase
GSM900
Issue 1
Min
-6
-1
85
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Typ
-4
0
90
Nokia Customer Care
Max
6
1
95
Unit
%
dB
○
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