Phoenix Tunings After Repairs - Nokia RH-47 Series Rf Description And Troubleshooting

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Phoenix Tunings after Repairs

The following tunings have to be performed after repairs:
• Repairs in the TX part require "TX Power Level Tuning".
• When component replacements around the modulator area (RF path from UEM
via RF ASIC to RF PA) have been done, "TX IQ Tuning" is additionally required.
• In RX general repairs, front-end always require "RX Calibration" and "Rx Band
Filter Calibration" for all three bands.
• Repairs in the PLL circuit always require "RX Calibration" of the low band.
• If the RF ASIC is replaced, all calibrations mentioned above have to be done.
Refer to Chapter 3, Service Software Instructions, for instructions on the above-men-
tioned tunings.
Issue 1 05/04
Company Confidential
7 - RF Description and Troubleshooting
Copyright © 2004 Nokia Corporation
Company Confidential
RH-47
Page 43