Nokia 550 Uif Module 04
PAMS Technical Documentation
THF–10 Series Transceivers
Chapter 4
UIF Module GN4
Original 03/98
THF–10
PAMS
UIF Module GN4
CONTENTS
UIF Module GN4 4 – 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Introduction 4 – 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mechanics 4 – 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electronics 4 – 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Technical Specifications 4 – 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DC Characteristics 4 – 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
External Signals and Connections 4 – 3. . . . . . . . . . . . . . . . . . . .
UIF Module Main Connector X130 4 – 4. . . . . . . . . . . . . . . . . . . .
Functional Description 4 – 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Circuit Description 4 – 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Led Drivers 4 – 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Keyboard scanning and display driver control 4 – 5. . . . . . . . . .
LCD module 4 – 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Distribution Diagram 4 – 6. . . . . . . . . . . . . . . . . . . . . . . . . .
Technical Documentation
Parts List of GN4 4 – 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Schematic Diagrams A3
Circuit Diagram of UIF Module (Version 05 Edit 39) for layout version 07 4/A3–1
Layout Diagram of GN4 (Version 07) 4/A3–2. . . . . . . . . . . . . . . . . . . . . .
Page 4 – 2
Original 03/98
PAMS
THF–10
Technical Documentation
UIF Module GN4
Introduction
The User Interface Module is based on DCT2.5’s UIF–module. Main difference is the use of parallel datamode in LCD driver and external clock
and power supply. Driver clock and negative voltage are supplied from
baseband module. Call LED and backlight control circuits are located in
baseband module to minimize component amount in UIF–module.
Mechanics
The module is made from a single printed circuit board – loaded with all
the parts for the User Interface Module.
The major mechanical parts on the UI assembly include the following:
– LCD + flexfoil and lightguide
UIF Module GN4
– plastic keydomes for keys and metaldome for powerbutton
– 2 sided 1mm PCB
Electronics
The following sections of circuitry are included on the PCB:
– LCD Display Module
– Call LED
– Keyboard & Display lighting.
– Keyboard switch matrix.
Technical Specifications
DC Characteristics
Pin /
Conn.
1 / X130 VL 3.3 V Imax = 150 mA
6/ X130 VNEG –5.8 V
Symbol Minimum Typical /
Nominal
Maximum Unit Notes
External Signals and Connections
Connector Name Notes
UIF Connector Board to board connector pads
Display Module Connector FPC footprint for LCD Module
Original 03/98
Page 4 – 3
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