Nokia 2650 Service Manual

Page of 92
ISSUE 1 09/2004
COMPANY CONFIDENTIAL
71
Copyright © 2004 Nokia. All Rights Reserved.
RH-53/54
Nokia Customer Care
RH-53/54 Manual Alignment with Phoenix
■ 
Manual alignment with Phoenix
The alignment/calibrations are the same in both GSM900/850 and GSM1800/1900 except for 
the channels and frequencies. Only the procedures for GSM900/GSM1800 are shown.
In Phoenix select connection Fbus scan product. If you power up the board before selecting 
Fbus, it works without any error messages. Use Jig or other device for RF and bus connection. 
Attenuation in the probe alone is 0dB for 900 and 0.1dB for 1800. 
Use CMD55, CMU200 or other suitable device. Default channels are 
37 for GSM900, 190 for GSM850
700 for GSM1800, 661 for GSM1900
The alignments and calibrations must be performed in the order shown in Phoenix to give reli-
able results. The way to save data to the phone and to load data from the phone is made dif-
ferent in the various tunings. Always look what is shown in the windows regarding these issues 
and act accordingly. In some windows the saving is done without any warning or second ap-
proval as soon as you stop or end. To vary a selected parameter you can use + and – key or 
in some cases directly type the new value. + and – steps the value for every press. Repeat 
function seems not to work. In I/Q you can use the side arrows.
Only the GSM900/1800 tuning is shown. In GSM850 and 1900 the procedure is the same ex-
cept for other channel numbers/frequencies.
■ 
RX calibration
Select Tuning, RX Calibration
Select Band GSM900
Press start