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PAMS Technical Documentation
NHX-7 Transceiver
Original 10/98
Chapter 3
UIF MODULE JE3
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PAMS
Technical Documentation
NHX-7
UIF MODULE JE3
Page 3 – 2
Original 10/98
AMENDMENT RECORD SHEET
Amendment
Number
Date Inserted By Comments
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PAMS
Technical Documentation
NHX-7
UIF MODULE JE3
Page 3 – 3
Original 10/98
CONTENTS
Page No
JE3 User Interfface Module Introduction 2 – 4. . . . . . . . . . . . . . . . . . .
Design 2 – 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electronics 2 – 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maximum Ratings 2 – 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DC Characteristics 2 – 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
The Engine Interface 2 – 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Functional Description 2 – 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Distribution Diagrams 2 – 8. . . . . . . . . . . . . . . . . . . . . . . . .
Keyboard 2 – 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Backlight 2 – 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Buzzer 2 – 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Speaker 2 – 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
LCD 2 – 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts list of JE3 (EDMS Issue 2.4)
Code: 0201213 2 – 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Schematic Diagrams
Page No
Circuit Diagram of UIF Module (Version 05 Edit 63)
for layout version 05 4A–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Layout Diagram of JE3 (Version 05) 4A–2. . . . . . . . . . . . . . . . . . . . . . .
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PAMS
Technical Documentation
NHX-7
UIF MODULE JE3
Page 3 – 4
Original 10/98
JE3 User Interface Module Introduction
This document describes the UI–Module (UIM) JE3. The module is used
in handportable phone NHX–7N of Nokia Mobile Phones.
Design
1 PCB
2 Reflector tape
3 Lightguide
4
1
2
3
4 LCD, drawn without TAB
The LCD module CD20 is sub–assembly from LCD manufacturer. It in-
cludes the LCD cell and mechanical parts of the module.
Electronics
The following sections of circuitry are included on the UI–PCB.
– Speaker circuit
– Buzzer circuit
– LCD module
– Keyboard and display backlighting circuits
– EMI & ESD circuits for LCD and speaker
Maximum Ratings
Operating temperature range –10... +55
o
C
Storage temperature range –40... +85
o
C