CCS Technical Documentation
Troubleshooting Instructions
NSB-9
Issue 1 04/03
Nokia Corporation
Page 3
Table of Contents
Page No
RF Troubleshooting ....................................................................................................... 4
Introduction ..................................................................................................................4
EQUIPMENT NEEDED:.......................................................................................... 4
USEFUL HINTS ....................................................................................................... 4
TROUBLESHOOTING IN CASE OF RF TUNING FAIL ........................................5
Channel Select Filter Calibration .............................................................................. 5
RX Calibration .......................................................................................................... 5
RX AM Suppression Calibration .............................................................................. 5
RX Band Filter Response Compensation.................................................................. 5
TX Power Level Tuning............................................................................................ 5
TX IQ Tuning............................................................................................................ 5
TX 850 Troubleshooting ..............................................................................................6
Phoenix commands ................................................................................................... 6
TX1900 TROUBLESHOOTING ................................................................................9
Phoenix commands ................................................................................................... 9
RX850 troubleshooting ..............................................................................................12
Phoenix commands ................................................................................................. 12
RX1900 Troubleshooting ..........................................................................................15
Phoenix commands ................................................................................................. 15
Figures of signals and voltages in testpoints .............................................................18
FM Radio Troubleshooting ........................................................................................35
Introduction ............................................................................................................. 35
EQUIPMENT NEEDED......................................................................................... 35
FM RADIO SCHEMATICS ......................................................................................36
FM Radio layout...................................................................................................... 39
REFERENCE MEASUREMENT RESULTS ........................................................ 42
Baseband Troubleshooting........................................................................................... 45
PWB Test points ........................................................................................................45
Troubleshooting steps ................................................................................................51
Main troubleshooting tree ..........................................................................................53
Phone is dead .............................................................................................................55
Flash faults .................................................................................................................56
Phone is jammed ......................................................................................................58
Charging fault ............................................................................................................60
SIM card fault ............................................................................................................61
Audio faults ...............................................................................................................62
Display faults .............................................................................................................70
Keypad faults .............................................................................................................72
Flip faults ...................................................................................................................76
FM Radio doesn’t work .............................................................................................78
Содержание NSB-9
Страница 14: ...NSB 9 CCS Technical Documentation Page 8 Nokia Corporation Issue 1 04 03 This page left intentionally blank ...
Страница 59: ...CCS Technical Documentation NSB 9 Series Transceivers Issue 1 04 03 Nokia Corporation Parts List ...
Страница 80: ...NSB 9 CCS Technical Documentation Page 2 Copyright Nokia All rights reserved Issue 1 04 03 ...
Страница 116: ...NSB 9 Company confidential CCS Technical Documentation Page 40 Copyright Nokia All rights reserved Issue 1 04 03 ...
Страница 143: ...CCS Technical Documentation NSB 9 Series Transceivers Issue 1 04 03 Nokia Corporation Service tools ...
Страница 166: ...NSB 9 Service tools CCS Technical Documentation Page 24 Nokia Corporation Issue 1 04 03 ...
Страница 175: ...CCS Technical Documentation NSB 9 Series Transceivers Issue 1 04 03 Nokia Corporation Troubleshooting Instructions ...