Nokia NSB-7 Series Service Manual page 82

NSB-7
UI Module
Table of Contents
UI Module.................................................................................................................................1
UIF Module ................................................................................................................................................ 4
Introduction ........................................................................................................................................... 4
BB Interface......................................................................................................................................... 4
LCD Module Interface....................................................................................................................... 6
Bottom Connector Signals .............................................................................................................. 7
Functional Description ........................................................................................................................ 8
Audio Control...................................................................................................................................... 8
Display Circuit.................................................................................................................................. 12
Keyboard............................................................................................................................................ 13
Power Key ......................................................................................................................................... 13
Backlighting ..................................................................................................................................... 14
Buzzer................................................................................................................................................. 15
Speaker .............................................................................................................................................. 16
Microphone ...................................................................................................................................... 17
Vibra Alerting Device ..................................................................................................................... 18
IR Module.......................................................................................................................................... 19
Page 2 ãNokia Mobile Phones Ltd.
PAMS Technical Documentation
Page No
Issue 1 06/00