Nokia 6560 Service Manual

Page of 38
RH-25
System Module
CCS Technical Documentation
Page 2
 ©Nokia Corporation        Confidential
Issue 1  10/2003
Contents
Page No
UEM and UPP ........................................................................................................... 7
Battery ....................................................................................................................... 8
Charger Detection ................................................................................................... 11
Charger Interface Protection ................................................................................... 11
LED Driver Circuit.................................................................................................. 12
LCD Display ........................................................................................................... 13
RF Interface Block .................................................................................................. 14
Combo Memory Module ......................................................................................... 14
Combo Memory Interface ....................................................................................... 14
SRAM Memory Description ................................................................................... 14
Flash Memory Description...................................................................................... 14
Flash Architecture ................................................................................................... 15
Keyboard (UI Module)............................................................................................ 15
Keyboard ESD Protection ....................................................................................... 15
Internal Audio ......................................................................................................... 15
External Audio Connector....................................................................................... 17
External Microphone Connection ........................................................................... 18
External Earphone Connection................................................................................ 18
IrDa Interface .......................................................................................................... 19
Vibra........................................................................................................................ 19
FM Radio................................................................................................................. 19
System Connector (Tomahawk).............................................................................. 20
PWB Construction................................................................................................... 21
PWB Immunity ....................................................................................................... 22
Keyboard ................................................................................................................. 22
Audio Lines ............................................................................................................. 22
Microphone Lines ................................................................................................... 22
EAR Lines ............................................................................................................... 23
Charger Lines .......................................................................................................... 23
HEADINT ............................................................................................................... 23
Battery Supply Filtering .......................................................................................... 23
System Connector ................................................................................................... 23
Mechanical Shielding .............................................................................................. 23