Nokia n80 User Manual page 151

RM-91; RM-92
BB Troubleshooting and Manual Tuning Guide
Baseband troubleshooting....................................................................................................................................6-5
Dead or jammed device troubleshooting............................................................................................................6-8
General power checking troubleshooting - CMT...............................................................................................6-10
General power checking troubleshooting - application processor.................................................................6-11
CMT clocking troubleshooting.............................................................................................................................6-12
Application processor troubleshooting.............................................................................................................6-13
Charging troubleshooting...................................................................................................................................6-14
Battery current measuring fault troubleshooting............................................................................................6-15
Flash programming fault troubleshooting........................................................................................................6-16
CMT SDRAM memory troubleshooting................................................................................................................6-19
CMT NOR flash fault troubleshooting..................................................................................................................6-20
Application processor memory troubleshooting..............................................................................................6-21
Power key troubleshooting.................................................................................................................................6-22
USB interface troubleshooting............................................................................................................................6-23
SIM card troubleshooting....................................................................................................................................6-25
SD card troubleshooting......................................................................................................................................6-27
IrDA troubleshooting...........................................................................................................................................6-29
Display controller troubleshooting....................................................................................................................6-31
WLAN interface troubleshooting........................................................................................................................6-32
Keyboard troubleshooting..................................................................................................................................6-33
Slider switch troubleshooting.............................................................................................................................6-35
FM radio troubleshooting....................................................................................................................................6-36
Certificate restoring for BB5.0 products............................................................................................................6-38
Display module troubleshooting........................................................................................................................6-44
General instructions for display troubleshooting........................................................................................6-44
Display fault troubleshooting........................................................................................................................6-46
Display and keyboard backlight troubleshooting........................................................................................6-47
ALS troubleshooting........................................................................................................................................6-47
LED driver troubleshooting............................................................................................................................6-50
Bluetooth troubleshooting..................................................................................................................................6-51
Introduction to Bluetooth troubleshooting.................................................................................................6-51
Bluetooth settings for Phoenix......................................................................................................................6-52
Bluetooth self tests in Phoenix......................................................................................................................6-53
Bluetooth BER failure troubleshooting.........................................................................................................6-55
BT audio failure troubleshooting..................................................................................................................6-57
Audio troubleshooting.........................................................................................................................................6-58
Audio troubleshooting test instructions......................................................................................................6-58
Internal earpiece troubleshooting................................................................................................................6-62
Internal microphone troubleshooting..........................................................................................................6-63
IHF troubleshooting........................................................................................................................................6-64
External microphone troubleshooting..........................................................................................................6-65
External earpiece troubleshooting................................................................................................................6-66
Vibra troubleshooting....................................................................................................................................6-67
Baseband manual tuning guide.........................................................................................................................6-68
Energy management calibration...................................................................................................................6-68
List of Tables
Table 8 Display module troubleshooting cases................................................................................................6-44
Table 9 Pixel defects............................................................................................................................................6-45
Issue 1
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