Nokia PermiCell9i Tuning Instructions 05
PAMS Technical Documentation
TFE–2 Series Transceiver
Chapter 5
TFE–2 TUNING
INSTRUCTIONS
Original 11/97
Copyright 1997 Nokia Mobile Phones. All rights reserved
TFE–2
PAMS
Tuning Instructions
Amendment
Number
Technical Documentation
AMENDMENT RECORD SHEET
Date Inserted By Comments
Page 2
Original 11/97
PAMS
TFE–2
Technical Documentation
TUNING INSTRUCTIONS
Contents
Introduction Page 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
General Page 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Required Equipment Page 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Equipment Setup Page 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Equipment Setup for Tuning a Phone without Removing Cover Page 6
Equipment Setup for Tuning a Phone with Cover Removed Page 7
Flash Prommer Page 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Starting The Software Page 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tuning Steps Page 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1. RSSI Reference Signal Level Storage Page 10. . . . . . . . . . . . . .
2. AFC Diagram Storage Page 10. . . . . . . . . . . . . . . . . . . . . . . . . . . .
3. I/Q Modulator Amplitude Balance and Phase Shift Tuning Page 11
4. Tuning of Transmitter Power Levels Page 13. . . . . . . . . . . . . . . .
Tuning Instructions
Original 11/97
Page 3
TFE–2
PAMS
Tuning Instructions
Introduction
General
In contrast to earlier second–generation analog cellular phones almost all tuning operations of the TFE–2 are carried out using the service software. The service software turns the phone into the locals mode, in which the phone can be
outwardly controlled via the M2BUS interface.
Tuning is based on the software communicating with the D/A and A/D converters of the phone. In some instances the phone processor will also calculate the
required correction parameter.
The tuning values of the phone reside on the EEPROM. The contents of the
EEPROM can be read by the service software and saved as a file. This is advisable when there is need to retain that information, e.g. in view of replacement of the circuit. The program also enables writing the default parameters on
the EEPROM, in which case all tuning steps should be carried out.
Technical Documentation
N.B. During tuning, proceed as follows:
– Take care not to damage sensitive measuring instruments with excessive
RF power.
– Carry out all tuning steps in the shortest possible time to avoid excessive
heating of RF units.
– Perform all tuning steps in the order presented.
– Never try to mask a fault by tuning it out!
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Original 11/97
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