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434
CELLULAR PHONE 01
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Circuit Diagram of Module UIF 04
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Contents 05
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General Information 02
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Installation Instructions 11
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Non Serviceable Accessories 09
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QUICK GUIDE 10
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SERVICE SOFTWARE INSTRUCTIONS 06
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Service Tools 07
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System Module 03
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TRANSCEIVER 05
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TROUBLESHOOTING INSTRUCTIONS 08
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Uif Module 04
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Nokia 434 Uif Module 04

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PAMS Technical Documentation
NHN–5NT Transceiver
Chapter 4

UIF Module GN4

Original 01/98
Copyright 1998 Nokia Mobile Phones. All rights reserved.
PAMS
UIF Module GN4
Amendment Number
Technical Documentation
AMENDMENT RECORD SHEET
Date Inserted By Comments
Page 4 – 2
Original 01/98
PAMS
Technical Documentation
CONTENTS
UIF Module GN4 – 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Introduction – 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Mechanics – 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electronics – 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Technical Specifications – 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
UIF internal signals, Inputs – 4. . . . . . . . . . . . . . . . . . . . . . . .
UIF internal signals, outputs – 4. . . . . . . . . . . . . . . . . . . . . . .
DC Characteristics – 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
External Signals and Connections – 5. . . . . . . . . . . . . . . . . . . .
UIF Module Main Connector X130 – 6. . . . . . . . . . . . . . . . . . . .
Functional Description – 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Circuit Description – 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Led Drivers – 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Keyboard scanning and display driver control – 7. . . . . . . . . .
LCD module – 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Distribution Diagram – 8. . . . . . . . . . . . . . . . . . . . . . . . . .
UIF Module GN4
Parts list of GN4 – 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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. . . . . . . . . . . . . . . . . . . . . .
Original 01/98
Page 4 – 3
PAMS

UIF Module GN4

UIF Module GN4
Introduction
Characteristic for the User Interface Module GN4 is the use of parallel da-
tamode 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
– plastic keydomes for keys and metaldome for powerbutton
– 2 sided 1mm PCB
Technical Documentation
Electronics
The following sections of circuitry are included on the PCB:
– LCD Display Module
– Call LED
– Keyboard & Display lighting.
– Keyboard switch matrix.
Technical Specifications
UIF internal signals, Inputs
Signal Description From
LIGHTS Backlight on/off CTRLU COL0–4 Lines for keypad read (keypad otputs) CTRLU DD0–4 LCD driver data CTRLU E LCD driver chip select signal CTRLU RW LCD driver read/write select signal CTRLU RS LCD driver register select signal CTRLU LCDRES LCD driver reset signal CTRLU
UIF internal signals, outputs
Signal Description From
ROW0–2 Lines for keypad read (keypad inputs).
Internal pull–up of MCU is used XPWRON Power on control for keypad PWRU KBINT Keypad interrupt request, falling edge active AUDIO
Page 4 – 4
CTRLU
Original 01/98
PAMS
Technical Documentation
UIF Module GN4
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 01/98
Page 4 – 5
LCD Driver (14.4
PAMS
UIF Module GN4
UIF Module Main Connector X130
Pin Line Sym-
bol
1 VL 3.3 V
6 VNEG –5.8 V
13,14,15,16 GND 0 V Ground
17–24
10 LCDCLK
11 XNWR
LD(0:7) 3.0 3.3 3.42 V
LD(0:7) 0 0.72 V LCD driving lines
Minimum Typical /
Nominal
3.0 3.3 3.42 V 0 0.72 V
3.0 3.3 3.42 V
Maximum Unit Notes
Technical Documentation
Logic voltage
Negative voltage for LCD display
LCD driving lines (high)
(low) Clock signal for
kHz) LCD write enable
28 XNRD
25 LCDREG
26 LCDCS
27 LCDRESET
3,4 BACK-
LIGHT
12 XPWRON
7–9 ROW(0:2)
0 0.72 V
3.0 3.3 3.42 V 0 0.72 V
3.0 3.3 3.42 V 0 0.72 V
3.0 3.3 3.42 V 0 0.72 V
3.0 3.3 3.42 V 0 0.72 V
4.4 5.2 V
0 0.5 V Backlighting for
100 mA Current for back-
3.0 3.3 3.42 V Power control for
0 0.72 V Power control for
3.0 3.3 3.42 V Lines for keyboard
0 0.72 V Lines for Keyboard
LCD read enable
LCD control/data select
LCD chip select
LCD reset input
Backlighting for keymat, display ON
keymat, display OFF
lights
system, ON / OFF
system, floating
read (High)
read (Low)
Page 4 – 6
Original 01/98
PAMS
Technical Documentation
Functional Description
Circuit Description
The module is connected with 28 pin board to board connector (X130) to the system board.
The module includes following main functional blocks: – Keyboard
– Illumination – LCD interface
Led Drivers
The keyboard and display illumination is achieved by using two transis­tors in baseband module wired as simple constant current sinks. The LED current is fixed by the values of (R54 to R56 inclusive) and the ratio of R170 on system board.
UIF Module GN4
Keyboard scanning and display driver control
ND(0–6) are used as column lines on keyboard. ROW0–2 are used as a row lines. The Keyboard is connected directly to the controller. ND(0–7) are output lines and ROW0–4 are input lines. Watchdog is updated same time with keyboard scanning (XPWROFF). Keyboard scanning is done by driving one ND to 0 V at time and ROWs are used to read which key is pressed.
LCD module
The LCD module includes the LCD and the display driver. The display driver has an external clock oscillator. The clock frequency is 14.4 kHz. The LCD driver is controlled in parallel mode. Reading and writing to LCD RAM is controlled by XNRD, XNWR and LCDCS control lines.
For the contrast control of the LCD display a negative supply voltage is required by the display driver. That is generated in the baseband module from the LCD–clock by the use of a diode pump and filtering. The gener­ated negative voltage is fed to Vout input in LCD driver. Internal voltage regulator requires resistor circuit R62 and R63 which is used for keeping the contrast at same level under any circumstances.
Original 01/98
Page 4 – 7
PAMS
UIF Module GN4
Power Distribution Diagram
VNEG VL
BACKLIGHT
LCD Lights
GND
Key Lights
Technical Documentation
LCD
Page 4 – 8
Original 01/98
PAMS
Technical Documentation
UIF Module GN4

Parts list of GN4

(EDMS Issue 2.9) Code: 0200964
ITEM CODE DESCRIPTION VALUE TYPE R101 1430101 Chip resistor 390 k 5 % 0.063 W 0603
R102 1430103 Chip resistor 470 k 5 % 0.063 W 0603 R110 1430035 Chip resistor 1.0 k 5 % 0.063 W 0603 R111 1430035 Chip resistor 1.0 k 5 % 0.063 W 0603 R112 1430035 Chip resistor 1.0 k 5 % 0.063 W 0603 R113 1430035 Chip resistor 1.0 k 5 % 0.063 W 0603 R114 1430035 Chip resistor 1.0 k 5 % 0.063 W 0603 R115 1430035 Chip resistor 1.0 k 5 % 0.063 W 0603 R116 1430035 Chip resistor 1.0 k 5 % 0.063 W 0603 R120 1430163 Chip resistor 33 5 % 0.063 W 0603 R121 1430163 Chip resistor 33 5 % 0.063 W 0603 R122 1430167 Chip resistor 47 5 % 0.063 W 0603 R123 1430001 Chip resistor 100 5 % 0.063 W 0603 C101 2320059 Ceramic cap. 100 p 5 % 50 V 0603 C102 2310003 Ceramic cap. 470 n 10 % 16 V 0805 C103 2310003 Ceramic cap. 470 n 10 % 16 V 0805 C104 2310003 Ceramic cap. 470 n 10 % 16 V 0805 C105 2310003 Ceramic cap. 470 n 10 % 16 V 0805 C106 2310003 Ceramic cap. 470 n 10 % 16 V 0805 C107 2312293 Ceramic cap. Y5 V 1206 C108 2320059 Ceramic cap. 100 p 5 % 50 V 0603 C120 2320059 Ceramic cap. 100 p 5 % 50 V 0603 H001 4850031 LCD display module 83x41 ICONS+DRIVER+TAB V010 4864301 Led Green 1305 V011 4864301 Led Green 1305 V012 4864301 Led Green 1305 V013 4864301 Led Green 1305 V014 4864301 Led Green 1305 V015 4864301 Led Green 1305 V016 4864301 Led Green 1305 V017 4864301 Led Green 1305 V018 4864301 Led Green 1305 V019 4864301 Led Green 1305 V020 4864301 Led Green 1305 V021 4864301 Led Green 1305 V022 4864301 Led Green 1305 V023 4864301 Led Green 1305 V024 4864301 Led Green 1305
Original 01/98
Page 4 – 9
PAMS
UIF Module GN4
V025 4864301 Led Green 1305 V026 4864301 Led Green 1305
9467021 Lightguide dmc01254 thf–10 9510413 LCD display gasket dmd03562 thf–10 9795037 Keydomes thf–10 gn4 9854199 PCB GN4 43.5X116.7X1.0 D 12/PA
Technical Documentation
Page 4 – 10
Original 01/98
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