Programmes After Market Services
NSD-6 Series Transceivers
UI Module CU3
Issue 1 04/01 Nokia Mobile Phones Ltd.
NSD-6
UI Module CU3 PAMS Technical Documentation
Page 2 Nokia Mobile Phones Ltd. Issue 1 04/01
NSD-6
PAMS Technical Documentation UI Module CU3
Contents
Page No
UI Module...................................................................................................................... 5
Introduction ..................................................................................................................5
Baseband Block Diagram............................................................................................... 6
The Engine Interface...................................................................................................... 7
The LCD Module Interface............................................................................................ 9
Functional Description................................................................................................. 10
Power Distribution Diagram ......................................................................................10
Display Circuit ...........................................................................................................10
Keyboard ....................................................................................................................10
Keyboard Matrix ........................................................................................................11
Power Key .................................................................................................................12
Backlighting ...............................................................................................................13
Display .......................................................................................................................14
Keyboard ....................................................................................................................14
Buzzer ........................................................................................................................15
Speaker ......................................................................................................................15
Issue 1 04/01 Nokia Mobile Phones Ltd. Page 3
NSD-6
UI Module CU3 PAMS Technical Documentation
Page 4 Nokia Mobile Phones Ltd. Issue 1 04/01
NSD-6
PAMS Technical Documentation UI Module CU3
UI Module
Introduction
The UI module CU3 is a four-layer PCB, which is connected to the system/RF PCB with a
28–pin spring connector.
Issue 1 04/01 Nokia Mobile Phones Ltd. Page 5
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