RH-53/54
Nokia Customer Care
4 COMPANY CONFIDENTIAL Issue 2 06/2005
Copyright © 2005 Nokia. All Rights Reserved.
General instructions for TX troubleshooting ................................................... 52
Troubleshooting chart for GSM900 transmitter .............................................. 54
Logic signals for the Front End Module ......................................................... 55
Renesa FEM logic .......................................................................................... 55
RFMD FEM logic ............................................................................................ 56
Analog Power control signals (TXC, VPC, VDET) ......................................... 56
I/Q signals ...................................................................................................... 58
Alignment........................................................................................................... 59
Manual alignment with Phoenix ....................................................................... 59
RX calibration................................................................................................... 59
RX Band Filter Response ................................................................................ 62
Tx Power tuning............................................................................................... 62
I/Q tuning ......................................................................................................... 64
RF control ........................................................................................................ 67
Autotune (RH-53 with CMU200) ....................................................................... 68
File adjustments............................................................................................... 68
Phoenix setup .................................................................................................. 68
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