Table of Contents
Baseband main troubleshooting......................................................................................................................... 3–7
Power and charging troubleshooting.............................................................................................................. 3–10
Backup battery troubleshooting.................................................................................................................. 3–10
Battery current measuring fault troubleshooting ..................................................................................... 3–11
General power checking troubleshooting .................................................................................................. 3–12
Dead or jammed device troubleshooting................................................................................................... 3–13
Dynamo charging troubleshooting ............................................................................................................. 3–14
Clocking troubleshooting ............................................................................................................................. 3–15
USB charging troubleshooting..................................................................................................................... 3–17
Interface troubleshooting ................................................................................................................................. 3–18
USB flashing fault troubleshooting ............................................................................................................. 3–18
USB data interface troubleshooting............................................................................................................ 3–19
SIM card troubleshooting ............................................................................................................................. 3–19
Memory troubleshooting.............................................................................................................................. 3–23
MicroSD card troubleshooting ................................................................................................................ 3–23
External memory eMMC troubleshooting .............................................................................................. 3–23
NOR troubleshooting ............................................................................................................................... 3–25
SDRAM troubleshooting........................................................................................................................... 3–26
IVE troubleshooting ........................................................................................................................................... 3–27
Introduction to IVE troubleshooting........................................................................................................... 3–27
IVE troubleshooting ...................................................................................................................................... 3–28
TV out troubleshooting...................................................................................................................................... 3–29
Introduction to HDTV and SDTV troubleshooting ...................................................................................... 3–29
HDTV out troubleshooting............................................................................................................................ 3–31
SDTV out troubleshooting ............................................................................................................................ 3–31
Display module troubleshooting ...................................................................................................................... 3–34
General instructions for display troubleshooting...................................................................................... 3–34
Introduction to display troubleshooting.................................................................................................... 3–35
Display fault troubleshooting ...................................................................................................................... 3–37
Touch panel troubleshooting....................................................................................................................... 3–37
Illumination troubleshooting ...................................................................................................................... 3–39
Charging illumination troubleshooting................................................................................................. 3–39
Menu key backlight troubleshooting ..................................................................................................... 3–40
Keyboard troubleshooting ................................................................................................................................ 3–41
Keys troubleshooting.................................................................................................................................... 3–41
Power key troubleshooting.......................................................................................................................... 3–41
Sensors troubleshooting ................................................................................................................................... 3–43
Accelerometer troubleshooting................................................................................................................... 3–43
Magnetometer troubleshooting.................................................................................................................. 3–44
Proximity sensor troubleshooting............................................................................................................... 3–46
ALS technical description and troubleshooting ......................................................................................... 3–46
Ambient Light Sensor (ALS)..................................................................................................................... 3–46
ALS functionality check............................................................................................................................ 3–47
Re-tuning ALS ........................................................................................................................................... 3–48
ALS troubleshooting ................................................................................................................................ 3–49
Audio troubleshooting....................................................................................................................................... 3–50
Audio troubleshooting test instructions..................................................................................................... 3–50
External earpiece troubleshooting.............................................................................................................. 3–52
External microphone troubleshooting........................................................................................................ 3–52
Internal earpiece troubleshooting .............................................................................................................. 3–54
RM-596
BB Troubleshooting and Manual Tuning Guide
Issue 2 COMPANY CONFIDENTIAL Page 3 – 3
Copyright © 2010 Nokia. All rights reserved.
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