Nokia 3000 - Section 4; Table of Contents

Table of Contents
General instructions for cellular RF troubleshooting......................................................................................... 4–5
Cellular RF key components.................................................................................................................................. 4–5
Cellular RF main troubleshooting ........................................................................................................................ 4–6
Cellular RF main troubleshooting................................................................................................................... 4–6
Self test troubleshooting................................................................................................................................. 4–9
Troubleshooting with RF Self tests............................................................................................................ 4–9
RF-BB interface self test troubleshooting.............................................................................................. 4–10
RF supply self test troubleshooting........................................................................................................ 4–12
VXO level.................................................................................................................................................... 4–12
VIO level..................................................................................................................................................... 4–12
VREF level .................................................................................................................................................. 4–12
VDCDCA (Vlow) level ................................................................................................................................. 4–13
RF tuning and testing ........................................................................................................................................ 4–13
RF auto tuning and testing with Nokia Care Suite..................................................................................... 4–13
RF auto tuning procedure ............................................................................................................................ 4–13
Automatic RF testing with Nokia Care Suite............................................................................................... 4–17
Troubleshooting with Testing And Tuning Tool ........................................................................................ 4–18
Manual transmitter (TX) testing with Phoenix........................................................................................... 4–20
General instructions for transmitter (TX) activation ............................................................................ 4–20
GSM transmitter activation...................................................................................................................... 4–20
WCDMA transmitter activation................................................................................................................ 4–23
Manual receiver (RX) testing with Phoenix ................................................................................................ 4–24
General instructions for manual receiver testing................................................................................. 4–24
GSM RX chain activation for manual measurements/GSM RSSI measurement .................................. 4–25
WCDMA RX chain activation for manual measurement........................................................................ 4–25
WCDMA RSSI measurement ..................................................................................................................... 4–26
Antenna............................................................................................................................................................... 4–27
Antenna overview ......................................................................................................................................... 4–27
Antenna troubleshooting............................................................................................................................. 4–27
List of Figures
Figure 8 Linko shields ........................................................................................................................................... 4–6
RM-781
Cellular RF troubleshooting
Issue 1 COMPANY CONFIDENTIAL Page 4 – 3
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