User Guide
Table Of Contents
NSB-8
Troubleshooting Instructions PAMS Technical Documentation
Page 2 ãNokia Corporation Issue 1 01/02
Table of Contents
Page No
Transceiver Troubleshooting ......................................................................................... 5
Baseband Troubleshooting ..........................................................................................5
PWB Points (and Measurement Points).................................................................... 5
Troubleshooting steps ................................................................................................34
General instructions................................................................................................. 35
RF Troubleshooting ...................................................................................................55
Phone Settings for TX Troubleshooting.................................................................. 55
Phone Settings for RX Troubleshhoting ................................................................. 55
NO TX GSM 1900.................................................................................................. 56
NO RX GSM 1900.................................................................................................. 56
Measurements points for AMS and production repair ..............................................57
TX Troubleshooting points ..................................................................................... 57
RX Troubleshooting points..................................................................................... 63
RF Tuning and Calibration Instructions....................................................................... 67
TX tunings .................................................................................................................67
TX Output power tuning ............................................................................................67
TX IQ tuning ..............................................................................................................70
RX tunings .................................................................................................................72
Channel select filter calibration .................................................................................73
RX tuning GSM1900 .................................................................................................74
AM suppression tuning ..............................................................................................76
RF Service Tools.......................................................................................................... 78
MJS-46 Module Jig ....................................................................................................78
JVB-1 Docking Station, MJF-6 Adapter and coupler CPL-6 ....................................78
Coupler attenuation calibration ..................................................................................78
Functionality Testing Limits .....................................................................................78
JXS-1 Shield Box ......................................................................................................79