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Nokia RM-243 Service Manual

Nokia RM-243
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Auto tuning procedure
1 Make sure the phone (in the jig) is connected to the equipment. Else, some menus will not be shown in
Phoenix.
2 To go to autotune, select
Tuning (Alt-U)
>
Auto-Tune (Alt-A)
from the menu.
3 Remember to set the correct attenuation values before autotuning.
4 To start autotuning, click the
Tune
button.
System mode independent manual tunings
RF channel filter calibration
Context
Rf channel filter calibration tunes the internal low pass filters of the RF ASIC, that limit the bandwidth of BB
IQ signals.
Table 12 Rf channel filter calibration tuning limits
Min Typ Max
Tx filter 0 10 31
RX mixer 0 13 31
Rx filter 0 16 31
Steps
1. From the Operating mode drop-down menu, set mode to Local.
2. Choose TuningRf Channel Filter Calibration .
3. Click Tune.
4. To save the values to the PMM (Phone Permanent Memory) area, click Write.
5. To close the
Rf Channel Filter Calibration
window, click Close.
Results
Figure 30 Rf channel filter calibration typical values
PA (power amplifier) detection
Context
The PA detection procedure detects which PA manufacturer is used for phone PAs.
RM-243
RF troubleshooting
Issue 1 COMPANY CONFIDENTIAL Page 4 –31
Copyright © 2007 Nokia. All rights reserved.

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Nokia RM-243 Specifications

General IconGeneral
BrandNokia
ModelRM-243
CategoryHandhelds
LanguageEnglish

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