Table Of Contents - Nokia RH-27 Series Technical Documentation Manual

RH-27
Troubleshooting - Baseband
Contents
Troubleshooting Overview ............................................................................................ 4
Power Up and Reset .....................................................................................................6
Power up with PWR key ........................................................................................... 8
Power up when charger is connected ........................................................................ 8
RTC alarm power up ................................................................................................. 9
Power Off .....................................................................................................................9
Power Consumption and Operation Modes .................................................................9
Power .........................................................................................................................10
Clock Distribution .....................................................................................................11
RFClk (19.2 MHz Analog)...................................................................................... 11
RFConvClk (19.2 MHz digital) .............................................................................. 12
CBUSClk Interface ................................................................................................. 13
DBUS Clk Interface ................................................................................................ 13
SleepCLK (Digital) ................................................................................................. 14
SleepCLK (Analog)................................................................................................. 14
Flash Programming ....................................................................................................15
Connections to Baseband ........................................................................................ 15
Baseband Power Up ................................................................................................ 15
Flash Programming Indication ................................................................................ 15
Flashing ................................................................................................................... 16
Charging Operation ...................................................................................................17
Battery ..................................................................................................................... 17
Charging circuitry ................................................................................................... 18
Charger Detection ......................................................................................................19
Charge Control ........................................................................................................ 20
Audio .........................................................................................................................20
Display and Keyboard ...............................................................................................21
Camera .......................................................................................................................21
Introduction ............................................................................................................. 21
DC Measurements ................................................................................................... 22
AC Measurements ................................................................................................... 23
Timing measurements ............................................................................................. 23
Power up Timing..................................................................................................... 24
UIF Interface Timing Measurements ...................................................................... 25
FM Radio ...................................................................................................................26
FM Radio Test......................................................................................................... 28
Accessory ...................................................................................................................30
Charging .................................................................................................................. 31
Tomahawk headset detection .................................................................................. 32
FBus detection......................................................................................................... 33
Accessory detection though ACI............................................................................. 34
RUIM (SIM CAR) .....................................................................................................35
Test Points .................................................................................................................36
Camera Test Points.................................................................................................. 39
Top troubleshooting map ...........................................................................................40
Phone is totally dead ..................................................................................................42
Flash programming doesn't work ..............................................................................43
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