Nokia RM-243 Service Manual

If a PA is changed or if the permanent memory (PMM) data is corrupted, PA detection has to be performed
before Tx tunings.
Steps
1. From the Operating mode drop-down menu, set mode to Local.
2. Choose Tuning→PA Detection .
3. Click Tune.
4. Check that the detected PA manufacturers are corresponding to the actual chips on the board.
5. To end the procedure, click Close.
GSM receiver tunings
Rx calibration (GSM)
Context
Rx Calibration is used to find out the real gain values of the GSM Rx AGC system and tuning response of the
AFC system (AFC D/A init value and AFC slope)
Steps
1. Connect the GSM connector of the module jig to a signal generator.
2. Start
Phoenix service software.
3. From the Operating mode drop-down menu, set mode to Local.
4. Choose Tuning→GSM→Rx Calibration .
RM-243
RF troubleshooting
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Nokia RM-243 Specifications

General

Brand	Nokia
Model	RM-243
Category	Handhelds
Language	English