User Guide

Table of Contents
Baseband troubleshooting...........................................................................................................................................................6–5
Dead or jammed device troubleshooting...............................................................................................................................6–6
General power checking troubleshooting...............................................................................................................................6–7
Clocking troubleshooting.............................................................................................................................................................6–8
OMAP1710 troubleshooting.........................................................................................................................................................6–9
Charging troubleshooting..........................................................................................................................................................6–11
Battery current measuring fault troubleshooting.............................................................................................................6–12
Flash programming fault troubleshooting...........................................................................................................................6–13
CMT SDRAM memory troubleshooting....................................................................................................................................6–16
CMT NOR flash fault troubleshooting......................................................................................................................................6–17
Power key troubleshooting.......................................................................................................................................................6–18
USB interface troubleshooting.................................................................................................................................................6–19
SIM card troubleshooting...........................................................................................................................................................6–21
MMC troubleshooting...................................................................................................................................................................6–22
Keyboard troubleshooting.........................................................................................................................................................6–22
Display module troubleshooting.............................................................................................................................................6–24
General instructions for display troubleshooting........................................................................................................6–24
Display fault troubleshooting.............................................................................................................................................6–25
Display and keyboard backlight troubleshooting........................................................................................................6–26
ALS troubleshooting...............................................................................................................................................................6–27
LED driver troubleshooting..................................................................................................................................................6–30
Bluetooth troubleshooting........................................................................................................................................................6–30
Introduction to Bluetooth troubleshooting...................................................................................................................6–30
Bluetooth settings for Phoenix..........................................................................................................................................6–33
Bluetooth self tests in Phoenix...........................................................................................................................................6–34
Bluetooth BER failure troubleshooting............................................................................................................................6–36
BT audio failure troubleshooting......................................................................................................................................6–38
Audio troubleshooting................................................................................................................................................................6–38
Audio troubleshooting test instructions.........................................................................................................................6–38
Internal earpiece troubleshooting....................................................................................................................................6–43
Internal microphone troubleshooting.............................................................................................................................6–45
IHF troubleshooting...............................................................................................................................................................6–46
External microphone troubleshooting.............................................................................................................................6–47
External earpiece troubleshooting....................................................................................................................................6–48
Baseband manual tuning guide...............................................................................................................................................6–49
Energy management calibration.......................................................................................................................................6–49
List of Tables
Table 9 Display module troubleshooting cases..................................................................................................................6–24
Table 10 Pixel defects..................................................................................................................................................................6–25
Table 11 Calibration value limits.............................................................................................................................................6–49
List of Figures
Figure 42 Main troubleshooting tree........................................................................................................................................6–5
Figure 43 SYSCLK from J2801.......................................................................................................................................................6–9
Figure 44 SleepCLK from R211..................................................................................................................................................6–10
Figure 45 Flashing pic 1. Take single trig measurement for the rise of the BSI signal..........................................6–14
Figure 46 Flashing pic 2. Take single trig measurement for the rise of the BSI signal..........................................6–15
RM-42
BB Troubleshooting and Manual Tuning Guide Nokia Customer Care
9241872 (Issue 1) Company Confidential Page 6–3
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