Table of Contents
Baseband main troubleshooting..........................................................................................................................3–5
Dead or jammed device troubleshooting............................................................................................................3–8
General power checking ........................................................................................................................................3–9
Clocking troubleshooting ................................................................................................................................... 3–11
USB charging troubleshooting........................................................................................................................... 3–12
Backup battery troubleshooting........................................................................................................................ 3–13
Flash programming troubleshooting................................................................................................................ 3–15
Combo memory troubleshooting ...................................................................................................................... 3–18
MicroSD card troubleshooting............................................................................................................................ 3–19
USB troubleshooting ........................................................................................................................................... 3–21
SIM card troubleshooting ................................................................................................................................... 3–22
Power key troubleshooting................................................................................................................................ 3–24
Vibra troubleshooting......................................................................................................................................... 3–25
Accelerometer troubleshooting......................................................................................................................... 3–26
Touch screen troubleshooting........................................................................................................................... 3–26
Introduction to touch screen troubleshooting ........................................................................................... 3–26
Proximity sensor troubleshooting................................................................................................................ 3–27
Resistive touch screen troubleshooting ...................................................................................................... 3–30
Hardware keys troubleshooting ........................................................................................................................ 3–33
Display module troubleshooting ....................................................................................................................... 3–35
General instructions for display troubleshooting....................................................................................... 3–35
Display troubleshooting ................................................................................................................................ 3–36
Display backlights troubleshooting.............................................................................................................. 3–37
LED and LED driver troubleshooting.................................................................................................................. 3–39
Ambient Light Sensor troubleshooting............................................................................................................. 3–41
Introduction to ALS troubleshooting ........................................................................................................... 3–41
GPS troubleshooting ........................................................................................................................................... 3–41
GPS antenna.................................................................................................................................................... 3–41
GPS layout and basic test points................................................................................................................... 3–42
GPS RF test points........................................................................................................................................... 3–43
GPS settings for Phoenix................................................................................................................................ 3–44
GPS control................................................................................................................................................. 3–44
Oscillator test............................................................................................................................................. 3–45
Receiver self test ....................................................................................................................................... 3–46
CW Test....................................................................................................................................................... 3–47
Quick Test window.................................................................................................................................... 3–48
GPS failure troubleshooting.......................................................................................................................... 3–49
GPS basic checks troubleshooting ................................................................................................................ 3–50
WLAN troubleshooting........................................................................................................................................ 3–52
WLAN functional description......................................................................................................................... 3–52
WLAN settings for Phoenix............................................................................................................................ 3–52
WLAN functional tests.................................................................................................................................... 3–54
WLAN auto tuning.......................................................................................................................................... 3–56
Bluetooth and FM radio ...................................................................................................................................... 3–58
Bluetooth and FM radio introduction........................................................................................................... 3–58
Bluetooth and FM radio component placement ......................................................................................... 3–59
Bluetooth and FM Radio Self Tests ............................................................................................................... 3–61
Bluetooth BER test.......................................................................................................................................... 3–61
Bluetooth and FM radio module troubleshooting ...................................................................................... 3–63
TV out troubleshooting....................................................................................................................................... 3–64
RM-505; RM-506
BB Troubleshooting and Manual Tuning Guide
Issue 1 COMPANY CONFIDENTIAL Page 3 –3
Copyright © 2009 Nokia. All rights reserved.
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