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Ringo 3
Baseband Block 02
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CELLULAR PHONE 00
6 pgs18.2 Kb0
Circuit Diagram of Module UIF
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Circuit Diagram of System Blocks
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General Information 01
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Installation Guide 64
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Non Serviceable Accessories 08
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SERVICE SOFTWARE INSTRUCTIONS 05
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Service Tools 07
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Transceiver Variants 04
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Troubleshooting Instructions 06
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Uif Module 03
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Nokia Ringo3 Uif Module 03

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PAMS Technical Documentation
NHX-7 Transceiver
Chapter 3
UIF MODULE JE3
Original 10/98
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PAMS
Amendment Number
Date Inserted By Comments
Technical Documentation
AMENDMENT RECORD SHEET
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CONTENTS

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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
UIF MODULE JE3
Page No
Parts list of JE3 (EDMS Issue 2.4)
Code: 0201213 2 – 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Schematic Diagrams
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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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
4
3
2
1 PCB 2 Reflector tape 3 Lightguide
4 LCD, drawn without TAB
The LCD module CD20 is sub–assembly from LCD manufacturer. It in­cludes 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 oC Storage temperature range –40... +85
o
C
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UIF MODULE JE3

DC Characteristics

Table 1. Supply Voltages and Power Consumption
Pin / Conn. Line Symbol Minimum Typical /
Nominal
21 VL 2.7 2.85 V 13,14 VBAT 3.0 5.3 V 23, 24 GND 0 V 25, 26 DGND 0 V
Maximum Unit / Notes
The Engine Interface
Table 2. Engine interface, 28–way
Pin Line Sym-
bol
1 ROW0 Keyboard matrix row 0 0 0.2xVL V Low
Parameter Min Typ Max Unit Notes
0.7xVL VL High
2 ROW1 Keyboard matrix row 1 0 0.2xVL V Low
0.7xVL VL High
3 ROW2 Keyboard matrix row 2 0 0.2xVL V Low
0.7xVL VL High
4 ROW3 Keyboard matrix row 3 0 0.2xVL V Low
0.7xVL VL V High
5 COL0 Keyboard matrix column 0 0 0.4 V Low
VL–0.5 VL V High
6 COL1 Keyboard matrix column 1 0 0.4 V Low
VL–0.5 VL V High
7 COL2 Keyboard matrix column 2 0 0.4 V Low
VL–0.5 VL High
8 COL3 Keyboard matrix column 3 0 0.4 V Low
VL–0.5 VL High
9 XPWRON Power on/off detection line 10 GND Analog ground 0 V 11 KEYBLIGHT Illumination control VL–0.5 VL V High / Active
0 0.4 Low
12 LCDBLIGHT Illumination control VL–0.5 VL V High / Active
0 0.4 Low 13 VBATT Battery voltage 3.0 5.3 V 14 VBATT Battery voltage 3.0 5.3 V
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Table 2. Engine interface, 28–way
Pin
bol
15 LCDCLK Display driver clock (external) 80 kHz
VL–0.5 VL V High
0 0.4 V Low 16 SCLK Mux’d LCD serial dataclock Hz
VL–0.5 VL V High
0 0.4 V Low 17 LCDENX Display driver enable 0 0.4 V Low
VL–0.5 VL V High
18 LCDDC Mux’d LCD data or command VL–0.5 VL V High
0 0.4 V Low 19 LCDSDA Mux’d LCD driver serial data 0 0.4 V Low
VL–0.5 VL V High
Technical Documentation
NotesUnitMaxTypMinParameterLine Sym-
20 LCDRES Reset for display driver 0 0.4 V Low
VL–0.5 VL V High
21 VL LCD voltage 2.7 2.85 V
LCD current 5 mA 22 BUZZER Buzzer PWM control 0 2.85 V 23 GND Analog ground 0 V 24 GND Analog ground 0 V 25 DGND Digital ground 0 V 26 DGND Digital ground 0 V 27 EARN Speaker negative 0 1.78 Vpp 28 EARP Speaker positive 0 1.78 Vpp
UIM Connector pads seen from the rear (2/2)
LCD
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Functional Description

Power Distribution Diagrams

VL
VBATT

Buzzer

GND
LEDs of Display
LEDs of Keybord
UIF MODULE JE3
PWR
Display
DGND

Keyboard

Backlight

Figure 1. Power distribution diagram
The keyboard is typed as a matrix pattern. The size of the matrix is 4 rows and 4 columns. The powerkey is separated from matrix. Rows are connected with pull–up resistors at the MCU.
Switching circuits for backlighting are located on UI board. Display and keyboard light controls are separated. On system board there is a possi­bility to control keyboard backlight illumination by i/o line state. Basically when both lines are in HIGH–state output and lights are bright, black key­mat is used. Keyboard control I/O line can be set to INPUT–state to dim keyboard backlight for white keymat. Dimming scale is controlled at the system board by resistors.
The leds used for display backlights (6 pc) are side illuminating and are compatible with CL270–YG. Color of LEDs is yellow–green ( λ 570 nm).
The leds used for keyboard backlights (6 pc) are top illuminating and are compatible with CL190–YG. Color of LEDs is yellow–green ( λ 570 nm).
Buzzer
The buzzer used is SMD type and controlled by PWM signal, produced by MCU. Same buzzer is used in DCT3 generation phones.
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UIF MODULE JE3

Speaker

The speaker circuit includes pads for speaker and a few resistors and spark caps for EMC circuits. The speaker used is partly open air model speaker. The most part of the leak holes behind the capsule are closed by support ring designed. The speaker with the support ring shall be as­sembled to A–covers specified well. The front resonance well with the hole of 1.2 mm and partly leaking back cavitation the frequency response is more constant. Tight contact with the UI–board is needed to ensure stabile back leak tolerant. Outer ring leak holes are not needed.
LCD
Technical Documentation
Page 3 – 8
Viewing area: ca. 35x24mm
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Parts list of JE3 (EDMS Issue 2.4) Code: 0201213

ITEM CODE DESCRIPTION VALUE TYPE
R901 1430035 Chip resistor 1.0 k 5 % 0.063 W 0603 R902 1430087 Chip resistor 100 k 5 % 0.063 W 0603 R903 1430087 Chip resistor 100 k 5 % 0.063 W 0603 R904 1430167 Chip resistor 47 5 % 0.063 W 0603 R911 1430033 Chip resistor 150 k 1 % 0.063 W 0603 R912 1430033 Chip resistor 150 k 1 % 0.063 W 0603 R920 1430043 Chip resistor 2.2 k 5 % 0.063 W 0603 R921 1430053 Chip resistor 5.6 k 5 % 0.063 W 0603 R922 1430155 Chip resistor 15 5 % 0.063 W 0603 R930 1430155 Chip resistor 15 5 % 0.063 W 0603 R931 1430047 Chip resistor 3.3 k 5 % 0.063 W 0603 R932 1430043 Chip resistor 2.2 k 5 % 0.063 W 0603 R950 1430159 Chip resistor 22 5 % 0.063 W 0603 R951 1430144 Chip jumper 0603 R952 1430159 Chip resistor 22 5 % 0.063 W 0603 C904 2320045 Ceramic cap. 27 p 5 % 50 V 0603 C910 2312401 Ceramic cap. 1.0 u 10 % 10 V 0805 C911 2320779 Ceramic cap. 100 n 10 % 16 V 0603 C912 2320779 Ceramic cap. 100 n 10 % 16 V 0603 C913 2320779 Ceramic cap. 100 n 10 % 16 V 0603 C914 2320779 Ceramic cap. 100 n 10 % 16 V 0603 C915 2320779 Ceramic cap. 100 n 10 % 16 V 0603 C916 2312401 Ceramic cap. 1.0 u 10 % 10 V 0805 C917 2312401 Ceramic cap. 1.0 u 10 % 10 V 0805 C918 2320107 Ceramic cap. 10 n 5 % 50 V 0603 B904 5140087 Buzzer 85db 2600hz 3.6v 10x10x3.5 Z001 3640035 Filt z>450r/100m 0r7max 0.2a 0603 Z002 3640035 Filt z>450r/100m 0r7max 0.2a 0603 H910 4850061 LCD display module 5x7dotmx30+cui+driver V001 4864388 Led Green 0603 V002 4864388 Led Green 0603 V003 4864388 Led Green 0603 V004 4860005 Led Green 0603 V005 4860005 Led Green 0603 V009 4864388 Led Green 0603 V010 4864388 Led Green 0603 V012 4864388 Led Green 0603 V017 4860005 Led Green 0603 V020 4860005 Led Green 0603 V021 4860005 Led Green 0603 V022 4860005 Led Green 0603 V901 4210100 Transistor BC848W npn 30 V SOT323 V902 4200875 Transistor BCX54–16 npn 45 V 1.5 A SOT89
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UIF MODULE JE3
V904 4100278 Diode x 2 BAV7070 V 200 mA COMCAT .SOT23 V920 4200836 Transistor BCX19 npn 50 V 0.5 A SOT23 V930 4200836 Transistor BCX19 npn 50 V 0.5 A SOT23
9854321 PCB JE3 41.0X113.1X0.8 D 4/PA
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