Auto Tuning; Introduction To Rf Tunings; Self Test Troubleshooting - Nokia RM-484 Service Manual

RM-484; RM-485; RM-486
RF Troubleshooting

Auto tuning

Introduction to RF tunings

RF tuning is always performed with the help of a product-specific module jig, never with an RF coupler. Using
an RF coupler in the tuning phase will cause a complete mistuning of the RF part.
Cable and adapter losses
RF cables and adapters have some losses. They have to be taken into account when the phone is tuned. As
all RF losses are frequency dependent, the user has to act very carefully and understand the measurement
setup. For RF attenuations of the module jig and RF cable, please refer to the Service Tools section.
Auto tuning
This phone can be tuned automatically.
Auto tuning is designed to align the phone's RF part easier and faster. It performs calibrations, tunings and
measurements of RX and TX. The results are displayed and logged in a result file, if initiated.
Hardware set up
For hardware requirements for auto tuning, please refer to
tuning .
Phoenix preparations
Install the phone specific data package, for example
defines phone specific settings.
Auto tuning procedure
1 Make sure the phone (in the jig) is connected to the equipment. Otherwise 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 Start autotuning by clicking the

Self Test Troubleshooting

Self test troubleshooting
Troubleshooting flow
Note: Self tests are recommended to be made when phone is in jig and 50 Ohm load is connected
to RF connector. Otherwise powertests may fail depending on antenna load.
Issue 1
Nokia_firmware_RM-484_EUROPE_10.014_v41.0.exe . This
Tune button.
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Service concept for RF testing and RF/BB
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