LXE VX4 User manual

VX4 User’s Guide

(For Microsoft

®

Windows

®

98, 2000 or XP Equipped VX4)

IMPORTANT NOTICE

LXE’s VX4 is obsolete. This electronic manual has been made available as a

courtesy to LXE’s VX4 customers. Please contact your LXE customer support

representative for assistance.

VX4A136OPGDWW

E-EQ-VX4OGWW-H-ARC

LANGUAGE : ENGLISH

Notices

Notice:

LXE Inc. reserves the right to make improvements or changes in the products described in this manual at any time without

notice. While reasonable efforts have been made in the preparation of this document to assure its accuracy, LXE assumes no

liability resulting from any errors or omissions in this document, or from the use of the information contained herein. Further,

LXE Incorporated, reserves the right to revise this publication and to make changes to it from time to time without any

obligation to notify any person or organization of such revision or changes.

Copyright Notice:

This manual is copyrighted. All rights are reserved. This document may not, in whole or in part, be copied, photocopied,

reproduced, translated or reduced to any electronic medium or machine-readable form without prior consent, in writing, from

LXE Inc.

125 Technology Parkway, Norcross, GA 30092 U.S.A. (770) 447-4224

Trademarks:

LXE® is a registered trademark of LXE Inc.

Microsoft, Windows and the Windows logo are registered trademarks of Microsoft Corporation in the United States and/or

other countries.

All other brand or product names are trademarks or registered trademarks of their respective companies or organizations. When

Adobe, the Adobe logo, Acrobat, and the Acrobat logo are trademarks of Adobe Systems Incorporated.” applies.

!

The user is strongly cautioned to read Appendix B, “Regulatory Notices and Safety

Information”. Important safety cautions, warnings and regulatory information is contained in

Appendix B.

Important: This symbol is placed on the product to remind users to dispose of Waste Electrical

and Electronic Equipment (WEEE) appropriately, per Directive 2002-96-EC. In most areas, this

product can be recycled, reclaimed and re-used when properly discarded. Do not discard labeled

units with trash. For information about proper disposal, contact LXE through your local sales

representative, or visit www.lxe.com.

Revision Notice

VX4 User’s Guide

Upgrade From Revision G to Revision H

Rev. Section Explanation

F Entire Manual Manual name changed to “VX4 User’s Guide”.

F The VX4 Vehicle Mount

Computer

Revised “Introduction” and “Environmental Specifications” sections.

Added “General Windows Keyboard Shortcuts”.

F Installation Revised “Connect Antenna” section.

G Introduction Added 8500 Series tethered scanners to Accessories. Added Power

Settings recommendation for 8500 scanners. Updated Accessories

listing effective July 2004

G Appendix B – Regulatory

Notices and Safety

Information

Updated the 6726 Declaration of Conformity.

H Cover Page Updated logo.

H Notices Added WEEE statement.

H Accessories Updated Accessories listing to reflect currently available items.

H External Power Supply,

Optional

Added temperature statement.

H

Appendix B – Regulatory

Notices and Safety

Information

Added WEEE statement.

Added Hungary to “R&TTE Directive Requirements.

Added temperature statement to A/C Power Supply Safety Statement.

ARC Entire manual Archived. Available on LXE ServicePass website only. Product’s

replacement device is the LXE VX5.

E-EQ-VX4OGWW-H-ARC VX4 User’s Guide

Table of Contents

THE VX4 VEHICLE MOUNT COMPUTER 1

Introduction...............................................................................................................1

Document Conventions ............................................................................................................2

Environmental Specifications...................................................................................................3

Quick Start.................................................................................................................4

Components..............................................................................................................5

The Full-Screen Display ...........................................................................................6

Microsoft Windows Control Panel...........................................................................

6

PCMCIA and ATA Slots ............................................................................................

6

The Keyboards..........................................................................................................

7

The QWERTY Keyboard .........................................................................................................

7

General Windows Keyboard Shortcuts ....................................................................................8

Key Maps..................................................................................................................................9

Unused Key Functions ...........................................................................................................9

NumLock and the VX4 ..........................................................................................................9

Keyboard Backlight..................................................................................................................9

Keyboard LEDs ......................................................................................................................10

CAPS LED ...........................................................................................................................10

Secondary Keys LED ...........................................................................................................11

Status LED ...........................................................................................................................11

Control Keys...........................................................................................................................12

Power Supply..........................................................................................................13

Backup Battery .......................................................................................................................13

Getting Help.............................................................................................................

14

Manuals and Accessories...................................................................................... 14

Manuals...................................................................................................................................14

Accessories .............................................................................................................................14

INSTALLATION 17

Install Mounting Brackets ......................................................................................17

Components ............................................................................................................................17

Mounting Dimensions ............................................................................................................18

Mounting Positions.................................................................................................................

18

Torque Measurements ............................................................................................................

19

Cable Retention Assembly .....................................................................................................

20

Connect Cable Ties to Back Mounting Bracket...................................................................

21

Procedure ................................................................................................................................22

Step 1 - Mount Bottom Mounting Bracket To Vehicle........................................................

22

ii Table of Contents

VX4 User’s Guide E-EQ-VX4OGWW-H-ARC

Step 2 - Connect VX4 To Back Mounting Bracket. ............................................................23

Step 3 - Attach VX4 In Bracket Assembly To Bottom Mounting Bracket..........................24

VMT Remote Keyboard Bracket Assembly...........................................................................26

VMT Remote Keyboard Mounting Dimensions..................................................................27

VMT Integrated Keyboard Bracket Assembly.......................................................................28

Connect Keyboard..................................................................................................31

Connect Antenna .................................................................................................... 32

Vehicle Remote Antenna Mount ............................................................................................32

Connect Serial Barcode Scanner ..........................................................................33

Connect Serial Printer or PC..................................................................................35

Connect USB Devices.............................................................................................36

Connect External Headset...................................................................................... 37

Connect Ethernet Cable .........................................................................................38

Connect Power Cable.............................................................................................39

External Power Supply, Optional........................................................................... 40

Vehicle 12-60VDC Direct Connection....................................................................41

Fuse Replacement for the VX4 .............................................................................. 44

OPERATION 45

Powering On/Off......................................................................................................45

Reset Key Sequence (Reboot) ................................................................................................46

Factory Default Settings.......................................................................................................46

Keyboard Backlight ................................................................................................46

Display and Touchscreen....................................................................................... 47

Cleaning the Display............................................................................................... 47

Adjust Screen Display............................................................................................47

Adjust Speaker Volume..........................................................................................48

Microsoft Windows Event Sounds .........................................................................................

48

Status Indicator....................................................................................................... 48

Power Management ................................................................................................................49

Laser Barcode Scanner Warnings......................................................................... 50

Cleaning the Scan Aperture....................................................................................................50

Enter Data................................................................................................................51

Keyboard Entry.......................................................................................................................51

Touchscreen Entry..................................................................................................................51

Scanner Entry..........................................................................................................................

52

Aiming the Barcode Scanner................................................................................................52

Distance from Label .............................................................................................................

52

Successful Scan ....................................................................................................................

52

Unsuccessful Scan................................................................................................................

52

Table of Contents iii

E-EQ-VX4OGWW-H-ARC VX4 User’s Guide

APPENDIX A KEY MAPS 53

Standard Keypad ....................................................................................................53

Key Map 101-Key Equivalencies............................................................................

54

TN3270 Terminal Emulator Keypad.......................................................................

59

TN5250 Terminal Emulator Keypad....................................................................... 59

APPENDIX B REGULATORY NOTICES AND SAFETY INFORMATION 61

Approvals ................................................................................................................ 63

INDEX 75

iv Table of Contents

VX4 User’s Guide E-EQ-VX4OGWW-H-ARC

Illustrations

Figure 1 VX4 Components ..................................................................................................................................5

Figure 2 The VX4 PCMCIA and ATA Slots.......................................................................................................6

Figure 3 The LXE VMT Keyboard with Cable ...................................................................................................7

Figure 4 The QWERTY Keyboard ......................................................................................................................7

Figure 5 Keyboard LEDs...................................................................................................................................10

Figure 6 The CapsLock Key ..............................................................................................................................10

Figure 7 The Secondary Key .............................................................................................................................11

Figure 8 The Resume/Suspend Key...................................................................................................................11

Figure 9 The VMT Keyboard Display Controls ................................................................................................12

Figure 10 VX4 Bracket - Mounting Dimensions (Not To Scale) ......................................................................18

Figure 11 Suggested Mounting Positions ..........................................................................................................18

Figure 12 Torque Measurements .......................................................................................................................19

Figure 13 Strain Relief Cable Clamp Locations ................................................................................................20

Figure 14 Cable Ties on Back Mounting Bracket Assembly.............................................................................21

Figure 15 Connect Bottom Bracket to Vehicle..................................................................................................22

Figure 16 Back Mounting Bracket Assembly....................................................................................................23

Figure 17 VX4 Connected to Back Bracket.......................................................................................................23

Figure 18 Connect to Bottom Mounting Bracket...............................................................................................24

Figure 19 VX4 in Vehicle Bracket ....................................................................................................................25

Figure 20 VMT Remote Keyboard Bracket Assembly......................................................................................26

Figure 21 VMT Remote Keyboard - Mounting Dimensions .............................................................................27

Figure 22 VMT Integrated Keyboard Bracket Assembly..................................................................................28

Figure 23 Cable Tie Holders and Cable Hooks .................................................................................................29

Figure 24 Assembled VMT Integrated Keyboard Bracket ................................................................................30

Figure 25 Keyboard Connection Location and Keyboard .................................................................................31

Figure 26 Connect 2.4GHz Antenna..................................................................................................................32

Figure 27 Connect Serial Scanner Cable ...........................................................................................................33

Figure 28 VX4 with Generic Barcode Scanner Attached ..................................................................................34

Figure 29 Generic Barcode Scanner ..................................................................................................................34

Figure 30 Connect Serial Cable to COM2 .........................................................................................................35

Figure 31 Connect USB Adapter Cable.............................................................................................................36

Figure 32 Connect USB Device to Adapter Cable.............................................................................................36

Figure 33 Connect External Headset .................................................................................................................37

Figure 34 Connect Ethernet Cable.....................................................................................................................38

Figure 35 Connect Power Cable to VX4 ...........................................................................................................39

Figure 36 Optional Power Configuration ..........................................................................................................40

Figure 37 Direct Vehicle Power Connection Cable (Fuse Not Shown).............................................................41

Figure 38 Connecting the Power Cable to the Vehicle......................................................................................41

Figure 39 Vehicle Connection Wiring Color Codes..........................................................................................42

Figure 40 Fuse Replacement..............................................................................................................................44

Figure 41 The VX4 Power Switch.....................................................................................................................45

Figure 42 Microsoft Windows Power Management ..........................................................................................49

Figure 43 Caution Labels Class II Scanner........................................................................................................50

Figure 44 Caution Labels Class IIIA Scanner ...................................................................................................50

Figure 45 Scan Beam.........................................................................................................................................52

Figure 46 VMT QWERTY Keyboard ...............................................................................................................53

Figure 47 IBM 3270 Specific Keypad ...............................................................................................................59

Figure 48 IBM 5250 Specific Keypad ...............................................................................................................59

E-EQ-VX4OGWW-H-ARC VX4 User’s Guide

The VX4 Vehicle Mount Computer

Introduction

The VX4 Vehicle Mount Computer (VMC) is a rugged, vehicle-mounted, PC (Personal

Computer) equipped with a Microsoft Windows operating system. The VX4 is capable of

wireless data communications from a fork-lift truck or any properly configured vehicle. The unit

uses a PCMCIA radio (spread spectrum 2.4GHz) for wireless data communications.

The VX4 is a tablet-style computer and features a SVGA color TFT display. The touch-screen

display supports graphic features and Microsoft Windows icons that the Windows 98, Windows

2000 or Windows XP operating system supports. An illuminated keyboard is available to

facilitate use in dimly lit areas.

The VX4 provides the power and functionality of a desktop computer in a vehicle mounted unit,

with a wide range of options:

• 266MHz Pentium or 400MHz Celeron CPU

• 64, 128 or 256MB of SDRAM

1

• Wireless LAN radios with single or dual (diversity) antenna

• Ethernet port

2

• Choice of storage media

• Extended temperature version

3

This document is one in a series covering the VX4 family of computers:

• For VX4 computers equipped with Microsoft Windows CE .NET Operating System:

VX4 CE .NET User’s Guide

VX4 CE .NET Reference Guide

• For VX4 computers equipped with Microsoft Windows 98, 2000 or XP operating

systems:

VX4 User’s Guide

VX4 Reference Guide

• For VX4 computers equipped with Datalight ROM-DOS Operating System:

VX4D User’s Guide

VX4D Reference Guide

These documents are available on the LXE Manuals CD-ROM.

This document is directed towards the daily user of a VX4 equipped with the Windows 98, 2000

or XP operating system. The “VX4 Reference Guide” contains technical information and

advanced functions specific to the VX4 equipped with the Windows operating systems listed

above.

1

256MB is currently available only with 400MHz Celeron processor. Please check with your

LXE representative for availability with Pentium 266MHz CPU.

2

Ethernet is available only with 400MHz Celeron processor.

3

Extended temperature versions are available with 128MB SDRAM only.

2 Introduction

VX4 User’s Guide E-EQ-VX4OGWW-H-ARC

Document Conventions

This reference guide uses the following document conventions:

ALL CAPS All caps are used to represent disk directories, file names, and application

names.

Menu|Choice Rather than use the phrase “choose the Save command from the File menu”,

this manual uses the convention “choose File|Save”.

“Quotes” Indicates the title of a book, chapter or a section within a chapter (for

example, “Document Conventions”).

< > Indicates a key on the keyboard (for example, <Enter> ).

Indicates a reference to other documentation.

Differences in operation or commands due to radio type.

ATTENTION

Keyword that indicates vital or pivotal information to follow.

!

Attention symbol that indicates vital or pivotal information to follow. Also,

when marked on product, means to refer to the manual or operator’s guide.

International fuse replacement symbol. When marked on the product, the

label includes fuse ratings in volts (v) and amperes (a) for the product.

Note: Keyword that indicates immediately relevant information.

Caution

!

Keyword that indicates a potentially hazardous situation, which, if not

avoided, may result in minor or moderate injury.

WARNING

!

Keyword that indicates a potentially hazardous situation, which, if not

avoided, could result in death or serious injury.

DANGER

!

Keyword that indicates an imminent hazardous situation, which, if not

avoided, will result in death or serious injury.

Introduction 3

E-EQ-VX4OGWW-H-ARC VX4 User’s Guide

Environmental Specifications

Feature Specification

Operating Temperature

Standard version, with

rotating media

41°F to 113°F (5°C to 45°C) [non-condensing]

Standard version, without

rotating media

32°F to 113°F (0°C to 45°C) [non-condensing]

Extended Temperature

version

Startup: -4°F to 122°F (-20°C to 50°C) [non-condensing]

Operating: -22ºF to 122ºF (-30ºC to 50ºF) [non-condensing]

Storage Temperature

Standard version 14°F to 158°F (-10°C to 70°C) [non-condensing]

Extended Temperature

version

-13°F to 158°F (-25°C to 70°C) [non-condensing]

Water, Sand Dust IP66 per IEC60529

Operating Humidity Up to 90% non-condensing at 104°F (40°C)

Vibration Based on MIL Std 810D

ESD 15 kV

Shock 75G, 5ms duration, 100 shock impacts

4 Quick Start

VX4 User’s Guide E-EQ-VX4OGWW-H-ARC

Quick Start

This section’s instructions are based on the assumption that your new system is pre-configured

and requires only accessory installation (e.g. antenna, external keyboard and/or barcode scanner)

and a power source.

Use this guide as you would any other source book -- reading portions to learn about the VX4,

and then referring to it when you need more information about a particular subject. This guide

takes you through installation and operation of the LXE VX4.

In general, the sequence of events is:

1. Install Vehicle Mounting Bracket (and keyboard mounting bracket) on vehicle.

2. Secure VX4 in Mounting Bracket Assembly.

3. Connect vehicle power source to VX4 power cable.

4. Connect power cable to the VX4.

5. Connect accessories to VX4, e.g. scanner, antenna, keyboard.

6. Secure all cables to the VX4 with the Strain Relief Cable Clamps.

7. Turn the VX4 on.

The VX4 and its keyboard should be mounted in an area in the vehicle where it:

• Does not obstruct the vehicle operator’s vision or safe vehicle operation.

• Will be protected from rain or inclement weather.

• Will be protected from extremely high concentrations of dust or wind-blown debris.

• Can be easily accessed by an operator seated in the driver’s seat.

Components 5

E-EQ-VX4OGWW-H-ARC VX4 User’s Guide

Components

1. Antenna Connector

2. PC Card Slots

3. Ethernet Connector

4

4. Speaker/Beeper

5. Audio Jack for

External Speaker or

Headset

6. COM1/Scanner

Connector

5

7. COM2 Connector

5

8. USB Cable

Connector

9. Keyboard

Connector

10. Power Connector

11. Power Switch

12. Fuse

Figure 1 VX4 Components

4

The Ethernet connector is optional. It is not present on all VX4’s.

5

COM1 is configured with Pin 9 +5V. COM2 is configured with Pin 9 RI. Refer to the VX4

Reference Guide, Chapter 4, “System Configuration” for more information.

6 The Full-Screen Display

VX4 User’s Guide E-EQ-VX4OGWW-H-ARC

The Full-Screen Display

The VX4 Display is a TFT color unit capable of supporting VGA and SVGA graphics modes. The

maximum display size is 800 x 600 pixels.

Microsoft Windows Control Panel

The Microsoft Windows Control Panel and System Tray icons panel provide standard Windows

options for configuring the VX4, such as:

• Sound volume

• Display configuration

• Power management

• PCMCIA card management

Please consult your System Administrator or refer to commercially available

Microsoft Windows user guides or the Windows on-line Help application for

these standard Windows configuration options.

PCMCIA and ATA Slots

The VX4 has two active PCMCIA slots and two Secondary IDE ATA slots. The right slots, Slot

0 and Slot 1 are PCMCIA slots. They support the Personal Computer Memory Card International

Association (PCMCIA) 2.1 standards. These slots are intended for use with LXE Type II

2.4GHz Spread Spectrum radios.

The left slots are used for ATA memory cards, either PCMCIA or Compact Flash format.

1. Slot 0 (Lower Right)

2. Slot 1 (Upper Right)

3. ATA Compact Flash Slot

(Lower Left)

4. ATA PCMCIA Slot (Upper Left)

Figure 2 The VX4 PCMCIA and ATA Slots

The Keyboards 7

E-EQ-VX4OGWW-H-ARC VX4 User’s Guide

The Keyboards

Note: Installation instructions for mounting keyboard brackets and connecting keyboards other

than the LXE Vehicle Mount Terminal (VMT) keyboard are contained in the following

LXE Installation Instruction documents:

Cherry VMT Keyboard Installation

Storm VMT Keyboard Installation

These documents are available on the LXE Manuals CD.

The LXE VMT keyboard is a customized keyboard, connected to the VX4 with a keyed

watertight connector. The LXE VMT keyboard features a 60 key keyboard. The keyboard

backlight is controlled manually. See “Keyboard Backlight” below.

The keyboard has 101 keyboard functions, including a numeric keyboard pad. Please refer to

Appendix A, “Key Maps”, for keypress combinations.

Figure 3 The LXE VMT Keyboard with Cable

The QWERTY Keyboard

Figure 4 The QWERTY Keyboard

8 The Keyboards

VX4 User’s Guide E-EQ-VX4OGWW-H-ARC

General Windows Keyboard Shortcuts

Use the keyboard shortcuts in the chart below to navigate the LXE VMT keyboard. These are

standard keyboard shortcuts for Windows applications.

Press these keys … To …

CTRL + C Copy

CTRL + X Cut

CTRL + V Paste

CTRL + Z Undo

DELETE Delete

SHIFT with any of the arrow keys

Select more than one item in a window or on the

desktop, or select text within a document.

CTRL+A Select all.

ALT+ESC Cycle through items in the order they were opened.

CTRL+ESC Display the Start menu.

ALT+Underlined letter in a menu

name

Display the corresponding menu.

Underlined letter in a command

name on an open menu

Carry out the corresponding command.

ESC Cancel the current task.

The Keyboards 9

E-EQ-VX4OGWW-H-ARC VX4 User’s Guide

Key Maps

The keyboard supports all 101 keyboard functions. However, because the keyboard only has 60

keys, all functions are not visible (or printed on the keyboard). Therefore the VX4 keyboard

supports what is called hidden keys -- keys that are accessible but not visible on the keyboard.

On standard keyboards many keys are found in the Alphanumeric section as well as on the

Numeric keypad (i.e. the 1 key is found on the numeric keypad and above the alpha characters on

standard keyboards). However these keys send distinctly different scan codes when the keys are

pressed. The default codes for the VX4 keys correspond to the numeric keypad on standard

keyboards. In order to duplicate the codes sent when the alphanumeric key is pressed, the hidden

keystroke must be used.

The hidden keys supported by the VX4 are listed in Appendix A, “Key Maps”.

Unused Key Functions

There are several key functions that are not used on the VX4. These include:

• <F3> - The Resume/Suspend function is not used as Microsoft Windows controls all

power management modes.

• <F4>, <F5>, <F6> and <F7> - The Display Brightness and Contrast functions are

not used as these properties are not adjustable on the TFT display on the VX4.

• <F8> and <F9> - The Volume control keys are not used as volume is adjusted via

the Microsoft Windows Volume icon in the System Tray.

• <F10> - The <F10> key is used in conjunction with the <2

nd

> key to toggle the

keyboard backlight on or off. See “Keyboard Backlight” below.

NumLock and the VX4

The keyboard does not have a NumLock indicator or key, however NumLock is On by default in

the BIOS. NumLock can be toggled Off or On using the <2

nd

> <SHIFT> <F10> keypress

sequence.

Please refer to the “VX4 Reference Guide” for more information on NumLock.

Keyboard Backlight

The LXE keyboard keys are backlit with LEDs. The backlight is manually controlled using the

<2

nd

> + <CTRL> + <F10> keypress sequence.

10 The Keyboards

VX4 User’s Guide E-EQ-VX4OGWW-H-ARC

Keyboard LEDs

The VX4 keyboard has three (3) LED indicators.

1. CapsLock Mode

LED Indicator

2. Secondary Mode

LED Indicator

3. Status LED

Indicator

Figure 5 Keyboard LEDs

CAPS LED

This LED indicates the state of the keyboard CapsLock mode. If CapsLock is enabled this LED is

illuminated green. When CapsLock is off, the LED is dark.

Figure 6 The CapsLock Key

Press <2

nd

> then <F1> to toggle CapsLock On and Off.

The default value of CapsLock is “Off”.

The Keyboards 11

E-EQ-VX4OGWW-H-ARC VX4 User’s Guide

Secondary Keys LED

The VMT keyboard is equipped with several secondary keys. These keys are identified by the

superscripted text found on the keyboard keys. The secondary keys are accessible by using two

(2) keystrokes: the <2

nd

> key followed by the superscripted key.

Figure 7 The Secondary Key

Once the <2

nd

> state is enabled (by pressing the <2

nd

> key) the Secondary Mode LED is

illuminated and the <2

nd

> state is enabled until another key is pressed. The <2

nd

> key is toggled on

with a <2

nd

> keypress and then immediately off with another <2

nd

> keypress.

For example:

Press <2

nd

> and <F1> to turn CapsLock on and off.

Press <2

nd

> and <↑> to initiate the PgUp command.

Press <2

nd

> and <Q> to type the “!” key.

Press <2

nd

> and <BkSp> to enter the Insert (Ins) mode.

Status LED

Figure 8 The Resume/Suspend Key

The Status LED, located on the front of the keyboard, is illuminated green when the unit is

powered on. The Status LED is dark when power is disconnected.

Note: This LED should not be lit when power is disconnected from the VX4.

The Resume/Suspend key has no effect on a VX4. All power management is controlled by

Microsoft Windows. Windows Power Management contains options to set the display timer, hard

disk timer and standby timer. Please refer to “Status Indicator” in the “Operation” section of this

manual for more details on Windows Power Management.

12 The Keyboards

VX4 User’s Guide E-EQ-VX4OGWW-H-ARC

Control Keys

The VMT keyboard has several control keys. Because of the construction of the VX4 and the

Microsoft Windows operating system, many of the Control Keys are not used on the VX4.

Note: The <F4>, <F5>, <F6>, and <F7> keys have no function as the VX4 has TFT LCD

screen with no provision for contrast or brightness adjustments.

The <F8> and <F9> keys have no function as the sound volume on the VX4 is

controlled with the Sound icon in the Microsoft Windows System Tray.

The <F10> key is used to toggle the backlight as part of the keypress sequence <2

nd

> + <CTRL>

+ <F10>. This key sequence immediately toggles the status of the keyboard backlight. Pressing

<2

nd

> + <F10> has no effect on the keyboard backlight.

1. Display Brightness Control

Keys (Not used)

2. Display Contrast Control

Keys (Not used)

3. Speaker Volume Control

Keys (Not used)

4. Backlight Control Key

(See above)

Figure 9 The VMT Keyboard Display Controls

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