Nokia 5110 Service Manual 04UIF
PAMS Technical Documentation
Chapter 4
UI Module UE4S
Original 03/98
PAMS
UI Module UE4S
CONTENTS
UIF Module 4–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Introduction 4–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Baseband Block Diagram 4–4. . . . . . . . . . . . . . . . . . . . . . . . . . .
The Engine Interface 4–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
The LCD Module Interface 4–7. . . . . . . . . . . . . . . . . . . . . . . . . .
Functional Description 4–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Distribution Diagram 4–8. . . . . . . . . . . . . . . . . . . . . . . . . .
Display Circuit 4–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Keyboard 4–9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Keyboard Matrix 4–10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Key 4–10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Backlighting 4–1 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Display 4–12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Keyboard 4–12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Buzzer 4–12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Speaker 4–13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Technical Documentation
Parts list of UE4S (EDMS Issue 4.1) Code: 0201144 4–14. . . . . . . .
Schematic Diagrams UIF/A3
Circuit Diagram of UIF Module (Version 3 Edit 49) for layout 03 4/A3–1
Circuit Diagram of Speaker and LCD Modules for layout 03 4/A3–2. .
Circuit Diagram of Keyboard (Version 3 Edit 45) for layout 03 4/A3–3.
Layout Diagram of UE4S (Version 03) 4/A3–4. . . . . . . . . . . . . . . . . . . . .
Page 4–2
Original 03/98
PAMS
Technical Documentation
UIF Module
Introduction
The UI module UE4S is a four layer PCB, which is connected to the system/RF PCB with a 28–pin spring connector.
UI Module UE4S
Original 03/98
Page 4–3
PAMS
UI Module UE4S
Baseband Block Diagram
Technical Documentation
Page 4–4
Original 03/98
PAMS
Technical Documentation
UI Module UE4S
The Engine Interface
Pin Line Sym-
bol
1 ROW0 Keyboard matrix row 0 0 0.3xVBB V Low
2 ROW1 Keyboard matrix row 1 0 0.3xVBB V Low
3 ROW2 Keyboard matrix row 2 0 0.3xVBB V Low
4 ROW3 Keyboard matrix row 3 0 0.3xVBB V Low
5 ROW4 Keyboard matrix row 4 0 0.3xVBB V Low
Parameter Min Typ Max Unit Notes
0.7xVBB VBB High
0.7xVBB VBB High
0.7xVBB VBB High
0.7xVBB VBB High
0.7xVBB VBB High
6 COL0 Keyboard matrix column 0,
used for flip identification
7 COL1 Keyboard matrix column 1 0 0.3xVBB V Low
8 COL2 Keyboard matrix column 2 0 0.3xVBB V Low
9 COL3 Keyboard matrix column 3 0 0.3xVBB V Low
10 COL4 Keyboard matrix column 4 0 0.3xVBB V Low
11 Signal1 Flip interrupt, not used 0 0.3xVBB V
12 VF_IN Flash in 4.8 5.0 5.2 V Connected #13
13 VF_OUT Flash out 4.8 5.0 5.2 V Connected #12
14 VBATT Battery voltage 3.0 5.1 V
0 0.3xVBB V Flip Open
0.7xVBB VBB Flip Closed
0.7xVBB VBB High
0.7xVBB VBB High
0.7xVBB VBB High
0.7xVBB VBB High
0.7xVBB VBB
60 75 100 mA For lights
110 300 mA For buzzer
15
UAGND*
16 PWRON Power on key 0 0.3xVBB V Low / Power on
17 LCDCDX LCD driver code/data selection 0 0.3xVBB V Low
18 SCLK LCD driver serial clock 0 0.3xVBB V Low
Original 03/98
Analog ground 0 V
0.7xVBB VBB High
0.7xVBB VBB High
0.7xVBB VBB High
Page 4–5
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