Table Of Contents - Nokia 7088 Troubleshooting Manual

7088 (Flower)
Base band Description and Troubleshooting
Contents
Introduction............................................................................................................... 4
Baseband and RF Architecture ................................................................................ 5
Power Up and Reset ................................................................................................ 6
Power Up .......................................................................................................8
Power Key ..............................................................................................8
Charger...................................................................................................8
External supply source is detected .........................................................8
Power Off.......................................................................................................8
Power Consumption and Operation Modes ...................................................9
Power-off Mode ......................................................................................9
Sleep Mode ............................................................................................9
Active Mode............................................................................................9
Charging Mode .......................................................................................9
Power Distribution .................................................................................................. 10
Clock Distribution.................................................................................................... 11
TCXO...........................................................................................................12
SLEEP crystal circuit for 32.768 kHz ...........................................................14
SBI CLK Interface ........................................................................................15
Backend IC and Camera Module Clocks .....................................................16
Flash Programming Error Description.................................................................... 16
Charging Operation ................................................................................................ 17
Battery .........................................................................................................17
Charging Circuitry ........................................................................................17
Charger Detection........................................................................................18
Charge Control ............................................................................................19
Audio ...................................................................................................................... 19
Keypad ................................................................................................................... 21
Display.................................................................................................................... 21
Camera and Flash Light LED................................................................................. 22
Universal Serial Bus (USB) .................................................................................... 22
Accessories ............................................................................................................ 24
Charging ......................................................................................................24
Headset Detection .......................................................................................24
Data Access.................................................................................................25
UIM CARD.............................................................................................................. 25
Page 2 © 2006 Nokia Corporation Company Confidential
Page
Issue 1 12/2006