IBM THINKPAD 340X, THINKPAD 700, THINKPAD 720, THINKPAD 701, THINKPAD 355x Users Guide

...
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i
Note
Before using this information and the product it supports, be sure to read the general information under Appendix E, “Product Warranties and Notices” on page 255.
First Edition (March 1995)
The following paragraph does not apply to the United Kingdom or any country where such provisions are inconsistent with local law:
INTERNATIONAL BUSINESS MACHINES CORPORATION PROVIDES THIS PUBLICATION “AS IS” WITHOUT ANY WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE LIMITED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Some states do not allow disclaimer or express or implied warranties in certain transactions, therefore, this statement may not apply to you.
This publication could include technical inaccuracies or typographical errors. Changes are periodically made to the information herein; these changes will be incorporated in new editions of the publication. IBM may make improvements or changes in the products and the programs described in this publication at any time.
It is possible that this publication may contain references to, or information about, IBM products (machines and programs), programming, or services that are not announced in your country. Such references or information must not be construed to mean that IBM intends to announce such IBM products, programming, or services in your country.
Requests for technical information about IBM products should be made to your IBM authorized dealer or your IBM marketing representative.
IBM may have patents or pending patent applications covering subject matter in this document. The furnishing of this document does not give you any license to these patents. You can send license inquiries, in writing, to the IBM Director of Licensing, IBM Corporation, 500 Columbus Avenue, Thornwood, NY 10594, U.S.A.
Copyright International Business Machines Corporation 1995. All rights reserved. Note to US Government Users – Documentation related to restricted rights – Use, duplication or disclosure is subject to restrictions set forth in GSA ADP Schedule Contract with IBM Corp.
Thank You for Selecting
an IBM ThinkPad 755CX Computer
The IBM ThinkPad 755CX
is one of the most advanced and versatile notebook computers.
With such innovative features as audio, telephony,
infrared ports, a long-life battery,
and a brilliant color display,
the ThinkPad 755CX will satisfy
all of your mobile computing needs.
iii

Distinctive System Features

1
Mwave DSP Audio, Telephony, and Data/Fax Modem Features
11
Long-Life Battery Pack
2
10
PCMCIA Support
Infrared Communication Support
9
TrackPoint III
3
ThinkPad Features
8
Easy-Setup
Config
Restart
7
TFT Color LCD Screen
6
Fn Key Function
Program
Thinkpad Features
4
Power Management
5
Security Features
iv IBM ThinkPad 755CX User's Guide
1 Mwave DSP audio, telephony, and fax/modem features
The ThinkPad Mwave digital signal processor (DSP) provides high-quality audio, telephony and modem/fax functions. With a built-in speaker and a microphone, they complete your multimedia computing solution. (See page 75.)
Note: In some countries, the Mwave telephony functions are available only after the DAA/Telephony Kit
option is installed.
2 Infrared communication support
Two infrared ports supplied with your computer make wireless serial communication possible. (See page 72.)
3 ThinkPad Features program
The ThinkPad Features program allows you to set various parameters either with a graphical user interface or with commands. (See page 35.)
4 Power management
Power management sets the computer to different modes to save battery power when you are not using the computer. It also provides a resume function, which quickly returns you to your previous operation. (See page 50.)
5 Security features
The computer provides security passwords for the computer and hard disk drive. Lock security and a personalization utility are also provided. (See Chapter 5.)
6 Fn key function
The combination of this Fn key and a function key controls display modes, battery power-saving modes, or other functions. (See page 48.)
7 TFT color LCD screen
A brilliant TFT color LCD screen supports 65536 colors with the following display resolution for each model:
The 755CX SVGA model supports SVGA (800-by-600 resolution) video mode besides VGA (640-by-480)
mode.
The 755CX VGA model supports VGA (640-by-480) mode.
8 Easy-Setup
The built-in system programs in Easy-Setup makes the basic setup of your computer easy. (See page 42.)
9 TrackPoint III
With TrackPoint III, pointing, selecting, and dragging all become part of a single process without your lifting your hands from the keyboard. (See page 23.)
1 PCMCIA** support
The computer provides two Personal Computer Memory Card Association (PCMCIA) slots. PCMCIA software is also provided, so that you can use PC Card** more easily and conveniently. (See page 61.)
11 Long-life battery pack
The operating time of the computer is extended with the long-life battery pack. (See page 20.)
v
vi IBM ThinkPad 755CX User's Guide
About This Book
This
User's Guide
IBM ThinkPad 755CX computer (hereafter called
computer
Chapter 1, “Getting Started,” describes the Product Map and explains how to set up your computer.
Chapter 2, “Getting Familiar with Your Computer,” acquaints you with additional features of your computer.
Chapter 3, “Operating Your Computer,” explains how to use the various features of your computer.
Chapter 4, “Using Battery Power,” provides battery information and describes how to operate your computer with the battery pack.
Chapter 5, “Protecting Your Computer,” provides information on how you can secure your computer and internal devices against unauthorized use.
Chapter 6, “Installing and Removing Options,” describes how to install or remove IBM options.
Chapter 7, “Installing Software,” explains how to install operating systems, device drivers, and other support software.
Chapter 8, “Solving Computer Problems,” describes what to do if you detect a problem.
Appendix A, “Avoiding Hardware Conflicts,” describes how you can avoid problems when you add or remove options.
Appendix B, “Advanced Information for PC Cards,” provides advanced technical information when using PC Cards.
Appendix C, “Additional Information for Mwave DSP Features,”
provides technical information about the ThinkPad Mwave DSP functions, audio, and telephony.
Appendix D, “Features and Specifications,” describes the features and specifications associated with your computer.
Appendix E, “Product Warranties and Notices,” contains the warranty statements of your computer and notices for this book.
“Glossary,” includes terms appearing in this definitions.
).
contains information that will help you operate the
755CX
User's Guide
or
and their
Copyright IBM Corp. 1995 vii

Information Notices

This
User's Guide
contains notices that relate to specific information or text.
Note:
Provides important hints, tips, guidance, or advice.
Warning:
Indicates possible damage to programs, devices, system, or data. It appears before the related instruction or situation in which possible damage could occur.
Providing Power
Note:
Rlkefldsksokdfskj Nkfjelkaselkdsfi, kjfadslkejfsa.
Warning: Oilekalksadkjsf ke. Dksjfelksd,ksjf ek kjsfylkefsdfoisefl.
Usild Lke Sejk
Tlkelk jrlij rfo ijeljc oijf, lekjr soifei jfs lkjf aliejlk sf. Hlkj lkjera sfie jrlksf j lksf leifjas elk,oir lkej fasifj.
Tjhasfladkeaoiufsaleaf.Easd jek:
-Lkjesalkiaoue.
-Yoeksfalkjeslasdjea.
Danger: Lklksd aeilsadd asfijelkj safdydfsa . Tka lksadfdi ylekjassf adfoiuasf .
Olkesaduyelksfaksayoisdalkjsfoiudlfek. sakjeoialkfsdoiueksafdlkjefasdoiy:
Tklksfoialkthkeselksdfkoiasfue.
1
Caution:
Indicates situations that are potentially hazardous to you. It appears in text before the instruction or situation that could be hazardous.
Danger:
Indicates situations that are potentially lethal or extremely hazardous to you.
109Chapter2. YoekfBlksdLekjf
It is indicated by the symbol and appears
in text before the instruction or situation that could be dangerous.

Treatment of Icons

This
User's Guide
to the operating system installed in your computer, or pointing you to other information.
OS/2
WIN
viii IBM ThinkPad 755CX User's Guide
contains the following icons (symbols) representing procedures or information unique
Information for IBM Operating System/2 (OS/2) users.
Information for Microsoft** Windows** users.
DOS
Information for DOS users.
Where to go for other information.

Electrical Safety Notice

DANGER:
Electrical current from power, telephone, and communication cable is hazardous. To avoid shock hazard, connect and disconnect cables as shown below when installing, moving, or opening the covers of this product or attached the devices.
The power cord must be used with a properly grounded outlet.
To Connect
Turn everything OFF.
First, attach all cables to devices.
Attach the signal cables to receptacles.
Attach the power cord to an outlet.
To Disconnect
Turn everything OFF.
First, remove the power cord from the outlet.
Remove signal cables from receptacles.
Remove all cables from devices.
Turn the device ON.
Note: In the U.K., by law, the telephone line cable must be connected after the power cord.
About This Book ix
Note: In the U.K., by law, the power cord must be disconnected after the telephone line cable.
CAUTION: Do not disassemble, incinerate, or short-circuit the rechargeable battery pack. Do not put it in refuse that is disposed of in landfills. Dispose of it as required by local ordinances or regulations.
CAUTION: The lithium battery (IBM P/N 84G6426, UL** recognized component—File No. MH12210), attached by the speaker under the keyboard can be replaced only by your IBM authorized reseller or IBM marketing representative. It contains lithium and can explode if not properly used, handled, or disposed of. Do not: (1) throw or immerse into water, (2) heat to more than 100°C (212°F), or (3) repair or disassemble. Dispose of it as required by local ordinances or regulations.
CAUTION: The nickel metal hydride rechargeable battery attached under the diskette drive, can be replaced only by your IBM authorized reseller or IBM marketing representative. Do not disassemble, incinerate, or short-circuit it. The battery can cause burns or release toxic chemicals. Do not put it in refuse that is disposed of in landfills. Dispose of it as required by local ordinances and regulations.
CAUTION: The fluorescent lamp in the liquid crystal display (LCD) contains mercury. Do not put it in refuse that is disposed of in landfills. Dispose of it as required by local ordinances or regulations.
The LCD is made of glass, and rough handling or dropping the computer can cause the LCD to break. If the LCD breaks and the internal fluid gets into your eyes or on your hands, immediately wash the affected areas with water for at least 15 minutes; then get medical care if any symptoms are present after washing.
x IBM ThinkPad 755CX User's Guide

Contents

About This Book ........................... vii
Information Notices . . . . . . . . . . . . . . . . . . . . . . . . . . viii
Treatment of Icons .......................... viii
Electrical Safety Notice ........................ ix
Chapter 1. Getting Started . . . . . . . . . . . . . . . . . . . . . 1
About the Product Map ........................ 2
Checking Your Items .......................... 2
Other Symbols on the Product Map ................. 4
Setting Up Your Computer ...................... 6
Chapter 2. Getting Familiar with Your Computer ...... 11
Locations and Functions ....................... 12
System-Status Indicators . . . . . . . . . . . . . . . . . . . . . . 16
Providing Power . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
AC Adapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Battery Pack . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Car Battery Adapter ........................ 22
Operating with the TrackPoint III .................. 23
Changing the Cap ......................... 25
Operating the Numeric Keypad ................... 26
Using the Display ........................... 27
Using a DOS Application with Your 755CX SVGA Model .. 28
Using the Online Book ........................ 29
Starting for OS/2 or Windows .................. 29
Starting for DOS .......................... 29
Keeping the Computer from Being Damaged ........... 30
Carrying the Computer ........................ 31
Chapter 3. Operating Your Computer ............. 33
What Happens When Power Is Turned On? ........... 34
Using the ThinkPad Features Program .............. 35
Using the Program for OS/2 and Windows .......... 36
Using the PS2 Program ..................... 41
Using Easy-Setup . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Starting Easy-Setup . . . . . . . . . . . . . . . . . . . . . . . . 42
Using the Selectable Drive-Startup Sequence ......... 47
Using the Fn Key Function ..................... 48
Using Power Management ..................... 50
Standby Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Suspend Mode . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Hibernation Mode . . . . . . . . . . . . . . . . . . . . . . . . . 57
Using PC Cards ........................... 61
About PC Cards .......................... 61
Limitations of Operation during Suspend and Hibernation
Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Copyright IBM Corp. 1995 xi
Using the PC Card Director Program .............. 62
Using the Infrared Communication Feature ............ 72
Considerations for Communication ............... 74
Using the Mwave DSP Features .................. 75
Using the Audio Function .................... 78
Using the Telephony Function .................. 84
Chapter 4. Using Battery Power ................. 91
Operating Time with the Battery Pack ............... 92
Charging the Battery Pack ..................... 92
Charging with the AC Adapter .................. 93
Charging with the Travel Quick Charger ............ 94
Replacing the Battery Pack ..................... 95
Monitoring the Battery-Power Status ................ 96
Using the Battery-Power Status Indicator ........... 96
Using the Fuel-Gauge Program ................. 98
Preserving Battery-Pack Life .................... 103
Maximizing Battery-Powered Operation .............. 104
Using Advanced Power Management ............. 104
Decreasing LCD Brightness ................... 105
Using Power-Saving Modes ................... 106
Chapter 5. Protecting Your Computer ............. 109
Using Passwords . . . . . . . . . . . . . . . . . . . . . . . . . . . 110
Power-On Password . . . . . . . . . . . . . . . . . . . . . . . 110
Hard-Disk Password . . . . . . . . . . . . . . . . . . . . . . . 114
Supervisor Password . . . . . . . . . . . . . . . . . . . . . . . 118
Using the Hard-Disk and Power-On Passwords ........ 122
Using the Supervisor and Hard-Disk Passwords ....... 122
Using Several Hard Disk Drives with the Supervisor
Password . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
Using the Personalization Utility Program ............. 125
Using Locks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
Using the Lock on the Hard Disk Drive ............. 130
Using the Security Lock ..................... 131
Using the PC Card Lock ..................... 132
Chapter 6. Installing and Removing Options ......... 133
Installing and Removing PC Cards ................. 134
Inserting the PC Card ....................... 134
Removing the PC Card ...................... 136
Increasing Memory Capacity .................... 137
Installing an IC DRAM Card and DIMM ............ 138
Removing the IC DRAM Card and DIMM ........... 143
Replacing the Hard Disk Drive ................... 148
Installing Options in the Diskette Drive Compartment ...... 150
xii IBM ThinkPad 755CX User's Guide
Reinstalling the Option Cover and Front Bezel ........ 153
Installing the DAA/Telephony Kit .................. 155
Attaching an External Numeric Keypad or a Mouse ....... 159
Using the Mouse and Other Pointing Devices ......... 160
Using a Mouse on the IBM ThinkPad Space Saver Keyboard 161
Attaching an External Keyboard .................. 163
Attaching a Printer .......................... 164
Attaching an External Display .................... 165
Changing the Display Mode ................... 166
Setting the Monitor Type and the Display Driver ....... 167
Connecting the External Display to the Computer ...... 169
Changing the Screen Resolution or Color Depth ....... 170
Using SVGA Display Drivers ................... 171
Attaching the IBM Dock I or Dock II ................ 172
Chapter 7. Installing Software . . . . . . . . . . . . . . . . . . 173
What You Need for Your Computer ................ 174
Installing the Operating System .................. 176
IBM OS/2 Warp or Version 2.11 ................ 176
IBM DOS Version 7.0 or Later .................. 176
Microsoft Windows Version 3.11 or Later ........... 177
Installing the ThinkPad Features Program ............ 180
Installing for OS/2 ......................... 180
Installing for DOS ......................... 181
Installing for Windows ...................... 182
Installing the PCMCIA Device Driver ................ 183
Installing for OS/2 ......................... 185
Installing for DOS ......................... 186
Installing for Windows ...................... 187
Installing the ThinkPad Display Driver ............... 188
Installing for OS/2 Warp ..................... 189
Installing for OS/2 V.2.11 ..................... 189
Installing for Windows ...................... 191
Installing the Mwave Support Software .............. 192
Installing for OS/2 ......................... 192
Installing for DOS ......................... 194
Installing for Windows ...................... 195
Installing the Infrared Device Driver ................ 196
Installing for OS/2 ......................... 196
Installing for Windows ...................... 197
Chapter 8. Solving Computer Problems ............ 199
Commonly Asked Problems and Actions ............. 200
Testing the Computer ........................ 202
Troubleshooting Charts . . . . . . . . . . . . . . . . . . . . . . . 204
LCD Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . 204
Contents xiii
Screen Messages . . . . . . . . . . . . . . . . . . . . . . . . . 206
Error Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . 208
General Problems . . . . . . . . . . . . . . . . . . . . . . . . . 210
What If Testing Cannot Find the Problem? ............ 211
Battery Power Problems ..................... 211
Diskette Drive Problems ..................... 213
Mwave DSP Feature Problems ................. 213
Infrared Communication Problems ............... 214
Software Problems . . . . . . . . . . . . . . . . . . . . . . . . 215
Option Problems . . . . . . . . . . . . . . . . . . . . . . . . . . 215
Keyboard, External Numeric Keypad, and Pointing Device
Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 216
External Display Problems .................... 218
Printer Problems . . . . . . . . . . . . . . . . . . . . . . . . . . 220
Intermittent Problems . . . . . . . . . . . . . . . . . . . . . . . 220
Listing Installed Options ....................... 221
Recording Identification Numbers ................. 222
Getting Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223
The IBM HelpClub: Another Great Choice (for European
Countries) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 224
Appendix A. Avoiding Hardware Conflicts .......... 227
Appendix B. Advanced Information for PC Cards ...... 231
Auto Configurator for the PC Card Director Program ...... 231
Example When a Modem Card Is Used ............ 232
Example When the Auto Configurator Is Not Used ...... 232
Example of the Memory Area for the Card Services and 3270 233
Operational Considerations for PCMCIA ............. 234
Software Considerations for OS/2 ................ 234
Software Considerations for DOS ................ 235
Software Considerations for Windows ............. 242
Appendix C. Additional Information for Mwave DSP
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 243
Audio Information . . . . . . . . . . . . . . . . . . . . . . . . . . . 243
Sound . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 243
Mwave MIDI Overview ...................... 244
Telephony Information . . . . . . . . . . . . . . . . . . . . . . . . 247
Appendix D. Features and Specifications ........... 249
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 249
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 251
IBM Power Cords ........................... 252
Diskette Standards . . . . . . . . . . . . . . . . . . . . . . . . . . 254
xiv IBM ThinkPad 755CX User's Guide
Appendix E. Product Warranties and Notices ........ 255
Notices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 261
Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . . . 261
Electronic Emission Notice ..................... 263
Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 269
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 273
Contents xv
xvi IBM ThinkPad 755CX User's Guide

Chapter 1. Getting Started

Welcome to the world of ThinkPad computers!
The IBM ThinkPad 755CX is one of the most advanced computers for your mobile computing needs. It can used both inside and outside your office.
This chapter describes the the computer.
About the Product Map ........................ 2
Checking Your Items .......................... 2
Other Symbols on the Product Map ................. 4
Setting Up Your Computer ...................... 6
Product Map
and the steps for setting up
Copyright IBM Corp. 1995 1
Getting Started

About the Product Map

The Product Map is a foldout diagram that you will see first when you unpack the computer. Using the Map will help you become familiar with your computer. When you physically place the shipping items and options on the Map, you will be able to check that all items were shipped to you.

Checking Your Items

Remove the Product Map from the box and spread it on a desk or flat surface. Next, remove each item and place it on the Map in the position indicated by the numbers in the following figure. If any item is missing or damaged, contact your place of purchase.
2 IBM ThinkPad 755CX User's Guide
1
The keyboard template shows function-key assignments when placed on the keyboard.
2
The power cord connects the AC Adapter to the electrical outlet.
3
The AC Adapter plugs into an electrical outlet and supplies power to the computer.
4
The User's Guide is this book. It provides the installing and operating information about your computer.
5
The battery pack supplies power to the computer for mobile operation.
6
The Utility Diskette contains the various system programs.
7
The PCMCIA Features Diskette contains the programs for the PCMCIA function.
The Video Features Diskette
for OS/2 and Video Features Diskette for Windows
contain the video system programs for the different operating systems.
The Infrared Features Diskette contains the infrared communication support programs.
The Mwave DSP Features Diskettes contain the DSP (digital signal processor) support programs.
Getting Started
8
Miscellaneous items are supplied in an envelope that contains:
Spare caps for TrackPoint III Wallet for telephone cable PCMCIA slot cover with cable
opening
PC Card lock
Adhesive strap
Application envelope (for some
countries)
Other items
For some countries, the shipment contains no diskettes. Therefore, you cannot place items on the diskette icons when checking the items shipped with your computer. You can either create the diskettes yourself or you can purchase them. You can create diskettes with the Diskette Factory program, which is
preinstalled in your computer. Follow the prompts that appear when the computer is turned on for the first time. You can also purchase the diskettes; call 1-800-772-2227 for purchasing information in the U.S., or contact your IBM authorized reseller or IBM marketing representative. Follow the instructions on “Building System Diskettes” in the
Chapter 1. Getting Started 3
Preload Guide
.
Getting Started

Other Symbols on the Product Map

This section describes the slots, connectors, and options that are shown on the Product Map. To install options, refer to Chapter 6.
4 IBM ThinkPad 755CX User's Guide
Getting Started
1
The serial connector is where you connect a 9-pin, serial-device cable.
2
The parallel connector is where you usually connect a parallel-printer signal cable.
3
The external-display connector is where you connect the signal cable of a video graphics adapter (VGA), super video graphics adapter (SVGA), or compatible display.
4
The infrared ports are used to make point-to-point communication with other devices with an infrared port.
5
The system expansion connector is used to connect the Dock I, Dock II, or Port Replicator option.
6
The mouse connects directly to the external input-device connector or is used with the external numeric keypad.
7
The external keyboard connects to the external input-device connector through the keyboard/mouse connector.
8
The external numeric keypad connects to the external input-device connector.
9
The PCMCIA slots accept one or two cards based on Personal Computer Memory Card International Association (PCMCIA).
1
The security keyhole is used with the Kensington** MicroSaver** Security System (hereafter called or a compatible lock to protect the devices inside of the computer.
11
The memory slot, which is under the removable diskette drive, accepts an integrated-circuit dynamic random-access memory (IC DRAM) card or a dual inline memory module (DIMM) adapter with one or two DIMM memory options.
Kensington lock
12
The modem/fax port is where you connect a telephone connector or attachment.
Note: This is offered as an option
The microphone/line-in jack, a 1/8-inch (3.5-mm) diameter jack, is where a stereo microphone or external audio device is connected. An externally powered dynamic microphone or condenser microphone, or an equivalent audio device, can be used.
The headphone jack, a 1/8-inch (3.5-mm) diameter jack, is where you connect a stereo headphone or external speakers.
)
Warning: To avoid possible loss of hearing, do not put on the headphones until after you have turned on the computer or connected the headphones to this jack.
in some countries.
13
14
Chapter 1. Getting Started 5
Getting Started

Setting Up Your Computer

You are now ready to assemble and start your computer. The following steps will guide you through the process.
The following conventions are used in the illustrations appearing in this chapter:
1
Indicates a main sequence of actions. Indicates a subsequence of actions in a main action. An arrow
accompanying the number shows the direction of movement.
1
Slide the latches on the sides of the computer halfway toward the front; then open the liquid crystal display (LCD).
2
Slide the same two latches forward again all the way toward the front; then raise the keyboard.
Some pressure might be needed to slide these latches if they are tight.
3
Install the battery pack into the middle compartment and firmly press it in to make sure of the electrical connection; then close the keyboard.
Sliding the latches forward while closing the keyboard makes it easier to close the keyboard.
CAUTION: The battery pack provided with your computer contains a small amount of harmful substances. To avoid possible injury:
Do not touch the battery terminals to any metal
objects.
Keep the battery pack away from fire. Do not soak the battery pack in water or expose it to
rain.
Do not attempt to disassemble the battery pack. Avoid mechanical shocks to the battery. Always use battery packs recommended by IBM. Keep the battery pack away from children.
6 IBM ThinkPad 755CX User's Guide
Getting Started
RightSideView
1
2
2
1
2
1
3
2
1
Chapter 1. Getting Started 7
3
Getting Started
4
Connect the AC Adapter as shown.
5
Position the speaker volume control to “3.”
6
Push and release the power switch to turn on the computer.
The power switch automatically returns to its original position after you push and release it.
7
Position the LCD so that it is convenient for viewing; then position the brightness (
8
After a single beep, one of the following screens appears, confirming that the system is operating correctly.
(In some countries, the demonstration program runs automatically and its associated screen appears.) If any other screen appears, see “Screen Messages” on page 206.
An Operating System screen
If you purchased a computer with a preinstalled
operating system, the startup screen of the operating system appears. (The screen shown is an example of an operating system screen.)
Install your application programs by following the instructions in the documentation that came with the programs.
This screen instructs you to set the initial date and time.
Note: For the 755CX SVGA model, the screen
image might look smaller than this sample.
To set the date and time, see “Using
Easy-Setup” on page 42.
Date and Time
1995
Year
23:59:59
Congratulations! You have successfully completed the basic setup of your computer!
) as shown.
menu
.03.31
Month Day
Hour Month Second
8 IBM ThinkPad 755CX User's Guide
5
Getting Started
4
1
3
2
6
7
Chapter 1. Getting Started 9
Getting Started
10 IBM ThinkPad 755CX User's Guide

Chapter 2. Getting Familiar with Your Computer

This chapter provides general information about your computer.
Locations and Functions ....................... 12
System-Status Indicators . . . . . . . . . . . . . . . . . . . . . . 16
Providing Power . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
AC Adapter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Battery Pack . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Car Battery Adapter ........................ 22
Operating with the TrackPoint III .................. 23
Changing the Cap ......................... 25
Operating the Numeric Keypad ................... 26
Using the Display ........................... 27
Using a DOS Application with Your 755CX SVGA Model .. 28
Using the Online Book ........................ 29
Starting for OS/2 or Windows .................. 29
Starting for DOS .......................... 29
Keeping the Computer from Being Damaged ........... 30
Carrying the Computer ........................ 31
Copyright IBM Corp. 1995 11

Locations and Functions

Locations and Functions
This section provides additional useful information about your computer.
FrontView
14
13
10
12
11
15
16
10
1
2
3
4
5
6
7
8
9
12 IBM ThinkPad 755CX User's Guide
Locations and Functions
1 The color LCD screen, which
uses a thin film transistor (TFT) technology, displays the computer output and can be moved to any desired viewing angle.
755CX SVGA model supports SVGA (800-by-600 resolution) video mode besides VGA (640-by-480) with 65536 colors.
755CX VGA model supports only VGA mode with 65536 colors.
A 1024-by-768 resolution video at maximum can be produced on any attached external display that supports the resolution mode. (See page 165.)
2 The built-in microphone
captures sound and voice when it is used with an application program capable of handling an audio or telephony function. (See page 75.)
3 The brightness control moves
up or down to adjust the brightness of the display.
4 The indicator panel consists
of the system-status indicators and their associated symbols. These indicators show the current status of the computer. (See page 16.)
5 The external input-device
connector is used to attach a
mouse, external keyboard, or external numeric keypad to the computer. (See page 159–163.)
6 PCMCIA slots accept one or
two PC Cards. (See page 134.)
7 The PC Card eject buttons
eject the PC Card from the upper or lower PCMCIA slot.
8 The keyboard is used to enter
data into the computer. To use the numeric keypad, see 26.
9 The security keyhole is used
with a Kensington lock or a compatible lock to protect your computer. (See page 131.)
1 The release latches release
the LCD or keyboard so they can be opened.
11 The click buttons are used
with the TrackPoint III.
12 The front infrared port allows
the computer to communicate with other devices that have the same capability. (See page 72.)
13 The Fn key is used to activate
the Fn key functions. (See page 48.)
14 TrackPoint III is a built-in
pointing device that provides a function similar to that of a mouse. (See page 23.)
15 The volume control adjusts
the sound level for the built-in speaker.
16 The built-in speaker
reproduces computer sounds such as beeps, music, or voices. (See page 75.)
Chapter 2. Getting Familiar with Your Computer 13
Locations and Functions
InsideView
BottomView
6
RearView
14 IBM ThinkPad 755CX User's Guide
Locations and Functions
Inside View
1 The modem/fax port release
latch releases the modem/fax
port from the computer. (See page 155.)
2 The removable diskette drive
reads data from or writes data to a diskette. One 3.5-inch,
1.44MB or 2.88MB diskette drive can be installed.
The 2.88MB drive supports the following diskettes (the formatted capacities are shown in parentheses): 1MB (720KB), 1.6MB (1.2MB), 2MB (1.44MB), or 4MB (2.88MB).
The 1.44MB drive supports the following diskettes: 1MB (720KB) or 2MB (1.44MB).
(For installing options in the diskette drive compartment: see page 150.)
3 The memory slot, which is
under the removable diskette drive, accepts an IC DRAM card or a dual inline memory module (DIMM) adapter with one or two DIMM memory options. (See page 137.)
4 The diskette-eject button
ejects a diskette from the diskette drive.
5 The battery pack allows you
to operate the computer when ac power is not available. (See page 20.)
6 The removable hard disk
drive can be replaced with one
with a different capacity. (See page 148.)
Rear View
1 The rear door covers the
connectors at the rear of the computer.
2 The connector door allows
the connection of a cable to the system-expansion connector when the rear door is closed.
3 The power switch turns the
computer on and off.
4 The headphone jack, a
1/8-inch (3.5-mm) diameter jack, is where you connect a stereo headphone or external speakers. (See page 76.)
5 The microphone/line-in
jack, a 1/8-inch (3.5-mm)
diameter jack, is where a stereo microphone or external audio device is connected. (See page 76.)
6 The modem/fax port is
where you connect a telephone connector or attachment. This is offered as an option in some countries. (For using: see page 76. For installing: see page 155.)
7 The option cover can be
removed when options are used in the diskette-drive compartment. (See page 153.)
8 The system-expansion
connector is used to
connect the IBM Dock I, Dock II, or Port Replicator. (See page 172.)
9 The power shutdown switch
is used to turn the computer off when the application locks up or the computer will not accept any input. Use the tip of a pen to press this switch.
1 The rear infrared port
(See “Front Infrared Port” on page 13.)
11 The external-display
connector is where you
connect the signal cable of a video graphics adapter (VGA), super video graphics adapter (SVGA), or compatible display. (See page 165.)
12 The parallel connector is
where you usually connect a parallel-printer signal cable. (See page 164.)
13 The serial connector is where
you connect a 9-pin, serial-device cable.
14 The power jack is where the
AC Adapter cable is connected.
Bottom View
1 The locking lever is used with
a chain to lock and prevent the keyboard from being opened. It secures the internal devices under the keyboard. (See page 130.)
2 The legs are used to adjust
the keyboard angle.
Chapter 2. Getting Familiar with Your Computer 15

System-Status Indicators

System-Status Indicators
The system-status indicators show the current status of your computer by their on or off states or by their colors (green, yellow, and orange). Each indicator is identified by a symbol.
The following figure and table show the location of each symbol and the meaning of each indicator:
Symbol Color Meaning
1 Speaker Blinking green When enabled by the ThinkPad Features program, this indicator
2 Battery power status Green Shows the condition of the battery pack.
Yellow Orange Blinking orange
3 Battery charging Green Indicates that the battery pack is being charged.
Blinking green Indicates that the battery pack is being discharged before being
4 PC card active Orange Turns on when power is supplied to the PCMCIA slot. Refer to the
blinks when the speaker sounds. It turns off when any key is pressed. (To enable this indicator, see “Using the ThinkPad Features Program” on page 35.)
Green or yellow Enough power remains for operation. Orange Some power remains for operation. Blinking orange The battery pack needs charging.
charged.
PC Card manual to see if the PC Card can be removed without turning the computer off.
5 Diskette drive in use Orange Turns on when data is read from or written to a diskette. Do not
6 Hard disk in use Orange Turns on when data is read from or written to the hard disk. Do not
enter suspend mode or eject the diskette when this indicator is on.
enter suspend mode or turn off the computer when this indicator is on.
16 IBM ThinkPad 755CX User's Guide
System-Status Indicators
Symbol Color Meaning
7 Numeric lock Green Indicates that the numeric keypad on the keyboard is enabled. The
8 Caps lock Green Indicates that the Caps Lock mode is enabled. All alphabetic
9 Scroll lock Green Alternately turns on and off each time the ScrLk key is pressed.
1 Suspend mode Green Indicates that the computer is in suspend mode. See page 50 for
Blinking green Indicates that the computer is entering suspend or hibernation
11 Power on Green Indicates that the computer is operational. This indicator is on
keypad is enabled and disabled by pressing and holding the Shift key, and pressing the NumLk key. For more information about the numeric keypad, see “Operating the Numeric Keypad” on page 26.
characters (A-Z) are entered in capital letters without the use of the Shift key. The Caps Lock mode is enabled and disabled by pressing the Caps Lock key.
While this indicator is on, the Arrow keys are used as screen-scroll function keys. In this state, the cursor cannot be moved with the Arrow keys. Not all application programs support this function.
more information about suspend mode.
mode, or is resuming normal operation.
when the computer is on and not in suspend mode.
Chapter 2. Getting Familiar with Your Computer 17

Providing Power

Providing Power
Note:
When the AC Adapter is connected, and the remaining power of the installed battery pack is less than a certain amount, discharging and then charging of the battery pack starts automatically.
Warning:
Always use the AC Adapter certified by IBM in the country where you will be using the computer. Operating the computer with an incorrect AC Adapter can cause damage to the battery pack and to the computer.
Your computer can be operated with the AC Adapter, battery pack, or Car Battery Adapter (available as an option).

AC Adapter

The AC Adapter is an alternating-current-to-direct-current (ac-to-dc) converter that supplies power for the computer. The AC Adapter also charges the battery pack when the battery pack is installed in the computer. The input rating for the AC Adapter is 100–240 V ac, 50/60 Hz.
CAUTION: Do not attempt to open the AC Adapter case. The AC Adapter is permanently sealed and cannot be repaired.
If you turn on the computer when the battery pack is installed, you will hear a short beep when you connect or disconnect the AC Adapter from the computer. This short beep means that the power source has been changed.
When the AC Adapter cable is disconnected from the computer with a battery pack installed, the LCD brightness decreases slightly to conserve battery power.
18 IBM ThinkPad 755CX User's Guide
Providing Power
To Wrap and Fasten the AC Adapter Cable
When you carry the AC Adapter with your computer, you can wrap and fasten the cable as follows:
1
1
2
3
Chapter 2. Getting Familiar with Your Computer 19
Providing Power
Note:
* The operating time depends on the options used with the computer, the frequency of key input, applications, and the configuration of the system, so it might be shorter or longer than the following time.

Battery Pack

The battery pack is an internal power source for the computer when the AC Adapter is not available. The battery pack can be recharged with the AC Adapter or the battery charger (available as an option).
Battery packs are shipped from the factory in an almost discharged state, so you
To operate your computer with the battery pack, see Chapter 4. You can use the following battery packs for the ThinkPad 755CX.
Lithium Ion Battery Pack
The following table shows the operating time of the computer with a fully charged lithium ion battery pack:
Model Battery Operating Time
755CX SVGA model 3.0 — 9.0 hours * 755CX VGA model 3.2 — 10.0 hours *
must charge
them before use.
20 IBM ThinkPad 755CX User's Guide
Note:
* The operating time depends on the options used with the computer, the frequency of key input, applications, and the configuration of the system, so it might be shorter or longer than the following time.
Providing Power
Nickel Metal Hydride Battery Pack
The following table shows the operating time of the computer with a fully charged nickel metal hydride battery pack (hereafter called
NiMH battery pack
):
Model Battery Operating Time
755CX SVGA model 2.4 — 7.0 hours * 755CX VGA model 2.6 — 8.0 hours *
Before Using the NiMH Battery Pack
This battery pack has an internal microprocessor to send the battery status to the computer. The
storage switch
1 on the battery pack sets this microprocessor on or off. When you use this battery pack for the first time, set the switch to the on ( | ) position.
Do not slide the storage switch to the off position ( O ) after you set it to the on position at the time of purchase. If you set this switch to the off position by mistake, slide the switch to the on position ( | ); then discharge and recharge it to make sure the microprocessor sends the correct status of the battery to the computer.
Chapter 2. Getting Familiar with Your Computer 21
Providing Power
For Your Information
Standby Battery:
battery, called the power to save data when a battery pack is replaced during suspend mode. The standby battery can be replaced only by your IBM authorized reseller or IBM marketing representative. To charge the standby battery, connect the AC Adapter to the computer. When using the computer for the first time, let the battery charge for at least 8 hours to allow it to become fully charged.

Car Battery Adapter

The Car Battery Adapter, available as an option, plugs into the cigarette lighter socket of a car and supplies power to your computer.
See the manual supplied with the Car Battery Adapter for more information.
Your computer has another rechargeable
standby battery.
It supplies the necessary
22 IBM ThinkPad 755CX User's Guide

Operating with the TrackPoint III

Using the TrackPoint III
Note:
No other software is required for the TrackPoint III; it works with the PS/2 mouse driver.
The keyboard contains a unique cursor-pointing device called the
TrackPoint III
a single process, without moving your fingers from their typing position.
The TrackPoint III consists of a stick 1 on the keyboard and a pair of click buttons 2 below the keyboard. The motion of the cursor on the screen is controlled by the amount of pressure applied to the nonslip cap stick in any direction parallel to the keyboard; the stick does
not
to the amount of pressure on the stick. The function of the click buttons depends on the software that is used.
. Pointing, selecting, and dragging all become part of
move. The speed at which the cursor moves corresponds
Chapter 2. Getting Familiar with Your Computer 23
Using the TrackPoint III
If you are not familiar with the TrackPoint III, these instructions will help you get started:
Note:
Remember that the stick does not move, and your finger should not move on it.
Note:
The mouse cursor may drift in some computer conditions. It is not a defect. Do not use the TrackPoint III until the pointer stops moving.
1
Place your hands in the typing position and press gently on the stick with either index finger in the direction in which you want the cursor to move.
Pressing the stick away from you moves the cursor up the screen; pressing it toward you moves the cursor down the screen. You can also move the cursor side to side by pressing sideways.
2
Press the click buttons with either thumb to select and drag as required by your software, as with any other pointing device.
Hints and Tips
You can easily drag an item across the screen without constantly pressing the click buttons of the TrackPoint III. To drag and drop an object, press the click button and slide it toward the front of the computer. The click button locks in place; you can now drag the object across the screen with the TrackPoint III stick without holding down the click button.
To release the latch, press it from the front side of the click button.
24 IBM ThinkPad 755CX User's Guide

Changing the Cap

The cap 1 on the end of the TrackPoint III is removable. You can replace it with one of the spares shipped with your computer.
Using the TrackPoint III
Chapter 2. Getting Familiar with Your Computer 25

Operating the Numeric Keypad

Operating the Numeric Keypad
The keyboard has some keys that, when enabled, work as if they were a 10-key numeric keypad. (The numeric keypad on the keyboard is not active when the external numeric keypad is attached to the computer.)
To enable the numeric keypad, press and hold Shift and then press NumLk.
NumLk
Note:
The keys are functional, but the function of the key is not printed on the keytop.
7 8 9
4 5 6
1 2 3
0
/
*
-
.
+
When the keypad is enabled, press and hold Shift to temporarily use the cursor- and screen-control keys.
NumLk
End
PgUp
PgDn
/
*
-
DelIns
+
Home
To disable the numeric keypad, press and hold Shift; then press NumLk again.
26 IBM ThinkPad 755CX User's Guide

Using the Display

To attach the external display: Page 165.
To change the display mode: Page 166.
Using the Display
The LCD of your computer supports the following video mode for each model:
The 755CX SVGA model supports VGA (640-by-480 resolution)
video mode and SVGA (800-by-600) video mode.
The 755CX VGA model supports VGA (640-by-480) video mode
only.
Both models can display the computer output with up to 65536 colors.
When you attach the external display that supports higher resolution than VGA, you can get a 1024-by-768 resolution video at maximum.
To display the computer output on the external display, you need to set the following display modes:
display mode
LCD only: CRT only
attached external display. When no external display is attached to the computer, the
output is displayed on the LCD.
Both
the external display. When no external display is attached to the computer, the
output is displayed only on the LCD.
: The computer output is displayed only on the
: The computer output is displayed on both the LCD and
appropriately. You can select one of the
The computer output is displayed only on the LCD.
Chapter 2. Getting Familiar with Your Computer 27
Using the Display

Using a DOS Application with Your 755CX SVGA Model

Note:
* When you select Both, do not attach the external display that supports only VGA mode (640-by-480 resolution). Otherwise, the screen of the external display is disordered and the output is not displayed.
When you use a DOS application that supports only VGA mode (640-by-480 resolution) with your 755CX SVGA model, the screen image might appear smaller than the display size shown in the following table. This is to maintain compatibility with DOS applications.
Display Mode
Both
LCD only CRT only
640 x 480
640 x 480
On the LCD
640 x 480
On the
external
display *
640 x 480
The screen
image appears
in the center
of LCD and
looks smaller
than the actual
LCD size.
The screen
image is the
same size as
the actual
screen size.
The screen
image appears
in the center
of LCD and
looks smaller
than the actual
LCD size.
—or—
640 x 480
28 IBM ThinkPad 755CX User's Guide

Using the Online Book

Using the Online Book
Notes:
The online book is not available
in all countries.
The online book is available only when the operating system is installed at the time of purchase.
OS/2
WIN
DOS
You can view this the hardcopy book is not available. The easy way of getting needed information when you are traveling.
User's Guide
online to retrieve information when
online book
provides a very
Starting for OS/2 or Windows
Click on the Online Book icon.
Starting for DOS
1
Type CD\READIBM at the command prompt and press Enter.
2
Type READIBM and press Enter.
The menu for the online book appears. Choose any subject from the menu.
Hints and Tips
You can leave a “bookmark” or write notes as you read through the online book:
To leave the book with a bookmark, select Place closing bookmark
when you exit the online book.
To write notes:
1.
Position the cursor at the place where you want to write a note.
2.
Select Notes from the action bar; then select Create... from the pull-down menu.
3.
Write any note; then save it.
A symbol (>) is placed next to where you left the note. To read the note, select Display/Edit... from the Note pull-down menu.
Chapter 2. Getting Familiar with Your Computer 29

Keeping the Computer from Being Damaged

Keeping the Computer from Being Damaged
Your computer is a delicate device that requires careful handling. To keep it from being damaged, keep these precautions in mind:
Do not apply shock to your computer. Do not place anything heavy on your computer. Do not pour liquid into your computer. Do not leave any objects (especially metal objects) in the
computer.
Keep the computer at least 13 cm (5 in.) away from any electrical appliance that generates a strong magnetic field such as a motor, magnet, TV, refrigerator, or large audio speakers.
Use your computer when temperatures are between 5°C to 35°C (41°F to 95°F).
Do not disassemble the computer.
Do not scratch, twist, hit, or push the surface of the LCD.
Remove the battery pack and keep it in a cool place if you will not be using the computer for a long period of time.
The removable hard disk drive and diskette drive are also very delicate devices that need careful handling. To avoid damage, do not press on them, drop them, or apply any shock to them when they are removed from the computer.
Do not press on the middle part of the diskette drive.
Insert a diskette straight into the diskette drive. Inserting it at an angle can damage the front of the diskette drive.
Do not place more than one diskette label on a diskette. Two or more labels can cause a label to tear apart inside the drive and cause damage to the diskette drive.
Occasionally clean your computer as follows:
Use a soft cloth moistened with nonalkaline detergent to wipe the exterior of the computer.
Gently wipe the LCD with a dry, soft cloth. Do not use alcohol or detergent.
30 IBM ThinkPad 755CX User's Guide

Carrying the Computer

When carrying your computer, follow these instructions to prevent possible damage to your computer and data:
Carrying the Computer
Note:
To reduce the weight of the computer when traveling, remove the diskette drive if you will not be using it.
To remove the diskette drive: Page 150.
1
Remove any diskette from the diskette drive.
2
Turn off all attached devices.
3
Turn off the computer and close the LCD.
4
Unplug all external cables and cords connected to the computer.
5
Make sure all computer doors and covers are closed.
For Your Information
1.
You should occasionally back up data from the hard disk to diskettes or tapes.
2.
To use the AC Adapter outside your home country, you need an ac power cord that is certified for the country you are visiting. You can purchase one through IBM authorized reseller or IBM marketing representative in that country. For information about power cords, see “IBM Power Cords” on page 252.
3.
A carrying case is available from your IBM authorized reseller or IBM marketing representative.
Chapter 2. Getting Familiar with Your Computer 31
Carrying the Computer
32 IBM ThinkPad 755CX User's Guide

Chapter 3. Operating Your Computer

This chapter provides information about the use of your computer.
What Happens When Power Is Turned On? ........... 34
Using the ThinkPad Features Program .............. 35
Using the Program for OS/2 and Windows .......... 36
Using the PS2 Program ..................... 41
Using the Batch File ...................... 41
Using Easy-Setup . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Starting Easy-Setup . . . . . . . . . . . . . . . . . . . . . . . . 42
Selecting Easy-Setup Items ................. 42
Using the Selectable Drive-Startup Sequence ......... 47
Changing the Startup Sequence ............... 47
Using the Fn Key Function ..................... 48
Using Power Management ..................... 50
Standby Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Suspend Mode . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Safe Suspend . . . . . . . . . . . . . . . . . . . . . . . . . 54
Considerations for Suspend Mode .............. 55
Hibernation Mode . . . . . . . . . . . . . . . . . . . . . . . . . 57
Creating the Hibernation File ................. 59
Considerations for Hibernation Mode ............ 60
Using PC Cards ........................... 61
About PC Cards .......................... 61
Limitations of Operation during Suspend and Hibernation
Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Using the PC Card Director Program .............. 62
Understanding the Meaning of Icons ............ 63
Starting PC Card Director for OS/2 ............. 65
Starting PC Card Director for DOS ............. 69
Starting PC Card Director for Windows ........... 70
Using the Infrared Communication Feature ............ 72
Considerations for Communication ............... 74
Using the Mwave DSP Features .................. 75
Using the Audio Function .................... 78
For OS/2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
For DOS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
For Windows or WIN-OS/2 .................. 80
Using the Telephony Function .................. 84
Connecting the Telephone Cable .............. 84
Using the Mwave Modem ................... 85
Mwave Data Modem ...................... 87
Using the Country Selection ................. 88
Mwave Call Discriminator ................... 88
Mwave Fax Modem ...................... 89
Mwave Telephone Answering Machine ........... 90
Copyright IBM Corp. 1995 33
What Happens after Power-On?

What Happens When Power Is Turned On?

One of the following prompts appears when the computer is turned on:
An operating system screen appears when the computer is operating correctly. The screen appearance may differ depending on your operating system.
An operating system screen
This screen appears when an operating system is not found. It instructs you to insert a self-starting diskette into the diskette drive and press F1 to start the diskette. The order in which the computer checks the drives for an
F1
F2
1995
Year
23:59:59
Hour Month Second
.03.31
Month Day
F10
operating system is set in the drive-startup sequence. See “Using the Selectable Drive-Startup Sequence” on page 47 for more information.
This screen instructs you to set the date and time for the first time. Enter the date and time (see page 44); then press Enter.
This screen indicates that a failure occurred during the power-on self-test (POST). See page 207 for the necessary actions.
This icon appears when a power-on password is set. To start the computer, enter the correct password.
This icon appears when a hard-disk password is set. To unlock the hard disk drive, enter the correct password.
34 IBM ThinkPad 755CX User's Guide

Using the ThinkPad Features Program

Using the ThinkPad Features Program
To install the ThinkPad Features program: Page 180.
Power Mode
Settings...
ThinkPad Features is a program that allows you to select various features for your computer. The following shows the structure of the ThinkPad Features program:
Power
Device Power
Suspend/Hibernation
ThinkPad Features
XXXXXXX XXX XXX
Monitor
Display
Device
Driver
Fuel
ThinkPadSetup
SystemInformation
IRQ/DMA/Memory
Assignment
Personalization
Other Devices
Alarm
More...
/Resume Options
The way you start the ThinkPad Features program depends on which operating system is installed.
Chapter 3. Operating Your Computer 35
Using the ThinkPad Features Program
OS/2
WIN
Note:
The screen might be different from the actual one.

Using the Program for OS/2 and Windows

When you use OS/2 or Windows, a graphical presentation is available in the ThinkPad Features program.
ThinkPad Features
PC Card Director
Power
Personalization
XXXXXXX XXX XXX
Display Alarm
?
ThinkPad
Features Help
Hints and Tips
You also can use ThinkPad Features Program through the PS2 program from the DOS full-screen command prompt in OS/2 or Windows. For more information, see “Using the PS2 Program” on page 41.
ThinkPad
Setup
Docking
Control
Fuel
?
Docking
Control Help
A Help button is available on most menu screens. For additional information on each menu item, click on this button.
36 IBM ThinkPad 755CX User's Guide
Power Menu
Using the ThinkPad Features Program
Power
Note:
* The values for both High Performance mode and Automatic mode are preset and cannot be changed.
Suspend, hibernation, and resume functions: Page 50.
When you select this icon, you can set power-saving options:
Power Mode for battery operation and AC Adapter operation.
You can select one of the following power modes:
Power-Saving
Option
Standby timer 0 0 Suspend timer 60 minutes 15 minutes Screen off
timer HDD stop
timer Processor
speed
High
Performance*
60 minutes 5 minutes
20 minutes 10 minutes
Maximum Automatic
Power Mode
Automatic* Customized
Your choice. Your choice. Your choice.
Your choice.
Your choice.
clock control
Customizing power mode
To customize the power mode, such as the processor speed,
select Settings.... The power mode settings window appears
on the screen. The values can be customized for each the battery-powered operation and the AC Adapter operation.
Power for devices
When you do not use such internal devices as the serial port or infrared port, you can save power by deleting the X in front of the device list.
Suspend, hibernation, and resume options
You can select suspend, hibernation, or resume options by clicking on the More... button.
Chapter 3. Operating Your Computer 37
Using the ThinkPad Features Program
Display Menu
Display
Note:
When the color depth is set to 65536 or 32 768, the available virtual screen size is 800-by-600 resolution at maximum. To get a virtual screen with a 1024-by-768 resolution, set the color depth to
256.
The display menu allows you to make selections for the computer display.
Display devices
You can select the LCD, an external display, or both to use with the computer.
Device driver
You can select display resolution and color depth. You can also use the following function:
Virtual screen on the LCD and the external display:
When you are using Windows, the virtual screen function is available. You can use it to display a part of the high-resolution screen image that is produced by the computer. Other parts can be seen by moving the screen using the TrackPoint III or another pointing device.
755CX SVGA model 755CX VGA model
1024x768
800x600
1024x768
640x480
Monitor
You can select the display type and refresh rate of the external display.
For more information, see “Attaching an External Display” on page 165.
Alarm Menu
Alarm
Note:
You can adjust the volume with the volume control. See page 12.
You can set the speaker to sound when the power status or the power mode is changed, or when battery power is low. You can also enable or disable the speaker indicator (see page 16) when the speaker sounds.
38 IBM ThinkPad 755CX User's Guide
ThinkPad Setup Menu
Using the ThinkPad Features Program
ThinkPad
Setup
Note:
You cannot use more than two serial devices at the same time. Serial devices include a device connected to the serial port, a modem in the diskette drive compartment, the infrared ports, the Mwave modem/fax (available as an option in some countries), and PCMCIA modem cards.
This menu allows you to view or set the following:
System Info
This shows you the system specifications and assigned resources (interrupt levels, DMA channel, and memory assignment) in the system.
Keyboard/Pointing Device
This allows you to enable the TrackPoint III. It also enables the
sticky Fn key function
, so Fn key functions are entered without
your pressing and holding the Fn key.
For Windows users:
You can also select the repeat-action speed of the keyboard and have a trailing cursor or select the shape and color of the pointing cursor.
Parallel
This allows you to enable the parallel port, select the port address (LPT1–LPT3), or set the direction of transfer and operating mode and view the interrupt levels.
Serial
This allows you to enable the serial port, select the port address (COM1–COM4), and view the interrupt levels.
DSP
This allows you to enable the DSP device for the Mwave functions, or view the I/O address, IRQ level, or DMA channel.
Infrared
This allows you to enable the infrared port or set the operating mode.
Video Controller
This allows you to set the memory address for the video BIOS.
Option Devices
This allows you to set I/O address, IRQ level, DMA channel, and memory address of the adapter information in the Dock I or II or other options.
Chapter 3. Operating Your Computer 39
Using the ThinkPad Features Program
The Fuel-Gauge program shows you the following battery-power information:
Fuel
Fuel-Gauge program: Page 98.
Discharge options
The Personalization Utility program allows you to display personal data, such as your name and address, on the screen when the computer is turned on. These appear only when a password is set.
Personalization
Personalization Utility program: Page 125.
The Docking Control Utility program allows you to attach the IBM Dock II to the computer without turning off the power.
Docking
Control
Note:
For more information about the Docking Control Utility program, refer to the
Dock II User's Guide
.
Remaining power percentage Current power mode
40 IBM ThinkPad 755CX User's Guide
Using the ThinkPad Features Program
OS/2
DOS
WIN
Note:
To use the PS2 program in OS/2, you need to install the program using the same procedure as when installing for DOS. See page 181.
Note:
The screen might be different from the actual one.
Note:
Refer to the manuals supplied with the operating system for more information on batch files.

Using the PS2 Program

To start the PS2 program, type PS2 or PS2 ? at the command prompt; the press Enter. The following help screen appears:
C:\> PS2 ?
(C)Copyright IBM Corp. 1993,1995. All rights reserved.
US Government Users Restricted Rights - Use, duplication or disclosure restricted by GSA ADP Schedule Contract with IBM Corp.
Command Syntax: PS2 [Parameter1] [Parameter2] [Parameter3]
Following are available [Parameter1]. For the complete command syntax, type 'PS2 ? [Parameter1]'.
1.Power Management related PMode, SErial, DDC, CARD, DSP, IR, POwer, LCd, DISK, SPeed, STandby, DISCHARGE, DEFAULT, Cover,
You can select an item from the menu and follow the instructions on the screen to set any of the features.
Using the Batch File
You also can specify features by entering appropriate commands, or you can create a batch file and set your unique operational environment with the commands.
The following sample batch file would provide an operational environment suitable for traveling, and could result in a longer-battery operation time.
@Echo Off
Rem SAMPLE: Set the parameters to provide maximum power utilization. Rem ================================================================
Chapter 3. Operating Your Computer 41
PS2 PMode Custom > Nul PS2 LCd 3 minutes > Nul PS2 DISK 3 minutes > Nul PS2 POwer 5 minutes > Nul PS2 SPeed Fixed MIN > Nul PS2 IR OFf > Nul PS2 CARD OFf > Nul PS2 DDC OFf > Nul

Using Easy-Setup

Using Easy-Setup
Warning:
Do not enter suspend mode when using Easy-Setup.

Starting Easy-Setup

Note:
You can change the screen color of the
Easy-Setup
Ctrl+PgUp or Ctrl+PgDn. Use Ctrl+Home to restore the original
screen color.
menu with
The computer has a built-in system setup function called
Easy-Setup
passwords, the startup sequence of the drives, and various hardware configurations, such as keyboard speed and serial- and parallel-port addresses. Easy-Setup also runs the diagnostics.
To start Easy-Setup, do the following:
1 2 3
. Easy-Setup allows you to set the date and time,
Turn off the computer. Remove any diskette from the diskette drive. Press and hold F1; then turn on the computer. Hold F1
until the
Easy-Setup
menu appears.
Easy-Setup
Config
Date/Time
Password
Start
Test
Restart
Selecting Easy-Setup Items
To select an item from the a pointing device to the item and click on the item or use the keyboard as follows:
Arrow keys (↑↓←→ ): Highlight the item from the menu. Spacebar: Selects the item. Enter key: Enters the next menu, or saves the changes and
exits the menu.
Esc key: Returns to the previous menu, or cancels the
changes.
42 IBM ThinkPad 755CX User's Guide
Easy-Setup
menu, move the pointer with
Config
Memory
Keyboard
Serial
Using Easy-Setup
Config contains the following:
SystemBoard
Memory Keyboard S er ia l
Initialize
Exit
Parallel
Memory shows the amount of installed memory and available memory remaining.
Keyboard enables you to set the repeat-action (typematic) speed and enables or disables the TrackPoint III.
Serial enables you to select the port address for a serial device connected to the serial port, or for the internal serial device in the diskette-drive compartment.
Parallel enables you to select the port address for a device, such as a printer, that is connected to the parallel connector. When you
Parallel
select Bidirectional, the data transfer between the selected port and the device is in both directions. When you select Unidirectional, the data transfer is in only one direction: from the computer to the device.
SystemBoard provides information about the installed system board.
System
Board
Initialize sets all items in the Config menu to their original values.
Initialize
Chapter 3. Operating Your Computer 43
After verifying the selections, click on OK or press Enter. To cancel the selections, press Esc.
Using Easy-Setup
Date/Time is used to set the current date and time.
Date/Time
Password
1995
.03.31
23:59:59
Select any field (Year, Month, Date, Hour, Minute, or Second) with the Arrow key or pointing device; then type or click on the or
icon to change the setting. Clicking on the or icon changes the setting more quickly.
After verifying the selection, click on OK or press Enter. To cancel the setting, click on Cancel or press Esc.
Password is used to set: Power-on password
Hard-disk password Supervisor password
Power-On Hard-Disk Supervisor
OK Cancel
For more information about the passwords, see Chapter 5.
44 IBM ThinkPad 755CX User's Guide
123
Start
Using Easy-Setup
Start up is used to change the startup sequence of your computer.
34
HDD-3 HDD-4
PCMCIA
Note:
For more information about the startup sequence, see “Using the Selectable Drive-Startup Sequence” on page 47.
Test
Note:
The FDD-1 and HDD-1 icons represent the diskette drive and hard disk drive of the computer, respectively. Other numbered icons are the diskette drive and hard disk drives of external devices.
The HDD-1 icon represents the internal hard disk drive of the computer. The other numbered HDD icons are the hard disk drives of external devices. FDD-1 represents the first diskette drive found during system startup. When no diskette drive is installed and the attached expansion unit (Dock I or II) has a diskette drive, the diskette drive in the Dock I or Dock II will be the first drive.
Select Test to test the computer hardware.
SystemBoard Memory Display
CD-ROMSerial DSP
1
HDD-1 FDD-1
2
HDD-2
FDD-2
2
PCMCIA-1
2
PCMCIA-2
RestartStart
11
Parallel
For more information, see “Testing the Computer” on page 202.
Chapter 3. Operating Your Computer 45
Using Easy-Setup
Click on Restart to restart the computer after you have made your selections. Then press Enter or click on OK.
Restart
46 IBM ThinkPad 755CX User's Guide

Using the Selectable Drive-Startup Sequence

Using Easy-Setup
Warning:
If you change your startup sequence, you must be extremely careful when you do write operations (such as copying, saving, or formatting). Your data or programs can be overwritten if you select the wrong drive.
Changing the Startup Sequence
To start Easy-Setup: Page 42.
Note:
You cannot set a hard disk drive before the PC Card in the startup sequence.
Selectable drive startup ( startup sequence of the drives in your computer. The order in which the computer searches the drives for your operating system is the
drive-startup sequence
operating systems, you might want to change the drive-startup sequence to load the operating system from the hard disk or the PC Card without checking the diskette drive, or to do a remote program load (RPL).
To change the startup sequence, do the following:
1
Start Easy-Setup and select the Start up icon.
2
Move the cursor to the Reset icon; then press the
selectable boot
. If you are working with multiple
) allows you to control the
Spacebar.
The sequence is reset, and all available device icons appear at the bottom of the screen. For the meaning of icons, see page 45.
3
Move the cursor to the icon of the first device for the startup sequence; then press the Spacebar.
Repeat this step to set the other devices for the startup sequence. You can set up to four devices.
4
Click on OK or press Enter to save the change.
Chapter 3. Operating Your Computer 47

Using the Fn Key Function

Using the Fn Key Function
The Fn key function allows you to change operational features instantly. When you use the following functions, press and hold the
Fn key 1 ; then press the appropriate function key 2 .
Note:
To use the sticky Fn key function, select Keyboard/Pointing Device from the
Setup
menu of the
ThinkPad Features program window
Hints and Tips
Using Sticky Fn Key Function
same effect as when you press and hold the Fn key until you press any function key.
or PS2 FNS E command.
Key Combination Feature Meaning
Fn
Fn
Fn
Fn
Fn
Fn
Fn
F1
+
F2
+
F3
+
F4
+
F5
+
F6
+
F7
+
Reserved
Fuel-Gauge program display on or off
Standby mode Places the computer in standby mode. For more information about this
Suspend mode Places the computer in suspend mode. For more information about this
Reserved
Reserved
LCD/external display switching
The Fuel-Gauge program must be activated before you can use this key combination.
When the this key combination is pressed:
mode, see page 52.
mode, See page 53.
Displays the computer output in the following order when an external display is attached.
External Both Display
LCD
: Once you press the Fn key, you get the
For OS/2 or Windows users: The window for the battery-power status appears or disappears. Parameters for power status can be set.
For DOS users: Power status information appears or disappears at the top-right corner of the screen.
48 IBM ThinkPad 755CX User's Guide
Key Combination Feature Meaning
Fn
F8
Reserved
+
Fn
F9
Reserved
+
Fn
Reserved
+
Fn
+
Power mode switching
When this key combination is pressed during battery-power operation, the power-management (power-saving) mode changes as follows. See page 37.
High Auto
Customize
The AC mode is used when the AC Adapter is attached. The Fuel-Gauge program displays the current-power option.
Fn
+
Hibernation mode Places the computer in hibernation mode. See “Hibernation Mode” on
page 57 for more information.
Using the Fn Key Function
Fn
Fn
+
+
PgUp
PgDn
Dock I speaker volume up
Dock I speaker volume down
Increases the speaker volume of the Dock I attached to the computer.
Decreases the speaker volume of the Dock I attached to the computer.
Chapter 3. Operating Your Computer 49

Using Power Management

Using Power Management
To use the ThinkPad Features program: Page 35.
Note:
When installing the operating system, install the ThinkPad Features program to use Power Management.
To install the ThinkPad Features program: Page 180.
The computer supports the following power-saving modes as a built-in power-saving functions:
Operation Mode
You can choose one of the following to operate your computer. (See page 37 for more information.)
High Performance
The computer performance is considered first, although power is automatically saved.
Automatic
The power-saving parameters are automatically set to save as much power as possible.
Customized
You can customize all parameters to save power.
Standby Mode
Enter standby mode for short idle times—for example, when you are having a short conversation with someone. (See page 52 for more information.)
Suspend Mode
Enter suspend mode for short periods of time away from your computer. (See page 53 for more information.)
Hibernation Mode
Enter hibernation mode when you leave your office and then return the following day. (See page 57 for more information.)
In addition to these, you can use the resume function. When resuming normal operation from one of the power-saving modes such as standby mode, suspend mode, or hibernation mode, the computer returns to where it was when it entered the mode. Because the operating system is already loaded, the resume function is faster than when turning on power.
A comparison of the power conserved and the time required to return to operation mode is shown in the following figure:
50 IBM ThinkPad 755CX User's Guide
Using Power Management
To set the timer: Page 35.
Power Switch
Power
Shutdown
Switch
Power-saving-
modes
Standby Suspend Hibernation
Time required to return to normal operation.
Amount of power consumption.
The following figure shows the operations required when the computer moves from a power-off condition to an operational mode, and vice versa. The battery shows the amount of battery power used in each stage.
High Performance
+
F11
Operation Mode
Power Switch
Fn+F12 Low Battery Timer
Fn
Fn+F4
Timer Low Battery
CloseLCD Open Keyboard
Suspend Mode
Automatic Customized
Fnkey Timer
Open LCD
Close Keyboard
Safe Suspend
Timer
Fn+F3
Timer
Anykey
Standby Mode
Fn+F4
Fn+F12
Timer Low Battery
HibernationMode
0%
Power-off
Chapter 3. Operating Your Computer 51
Using Power Management

Standby Mode

In standby mode, the hard disk drive stops and the LCD turns off to save power. When any key is pressed, the computer immediately resumes normal operation.
The following shows what causes the computer to enter standby mode and resume normal operation:
Fn key function: Page 48.
ThinkPad Features program: Page 35.
To Standby Mode
Fn+F3 key combination is
pressed.
No activity occurs during
the time specified by the
Standby timer
ThinkPad Features program.
of the
To Normal Operation
Any key is pressed. Pointing device activity
occurs.
52 IBM ThinkPad 755CX User's Guide

Suspend Mode

Using Power Management
In suspend mode, all tasks are stopped and stored in memory to save power. When the computer resumes normal operation, the tasks are automatically restored.
The following shows what causes the computer to enter suspend mode and to resume normal operation:
Fn key function: Page 48.
ThinkPad Features program: Page 35.
PS2 command: Page 41.
To Suspend Mode
The Fn+F4 key combination is pressed.
The LCD is closed. The PS2 command to
enter suspend mode is used.
The suspend button is pressed in the Fuel-Gauge program.
No activity occurs during the time specified by the
Suspend timer
of the ThinkPad Features program.
A low-battery condition is detected.
The keyboard is opened.
To Normal Operation
The Fn key is pressed.
Any key is pressed when the AC Adapter is being used.
The LCD is opened.
The PS2 command to resume is used.
The Resume on timer option is set in the ThinkPad Features program.
The ring indicator is received through the communication interface.
The keyboard is closed.
Chapter 3. Operating Your Computer 53
Using Power Management
Safe Suspend
The current status of the computer is shown by the following indicators:
Indicators
Current Status
Suspend Mode Power-On
In suspend mode Green Off Entering or resuming
suspend Normal operation Off Green
Blinking green Off
Warning:
Do not move the computer when it is entering safe suspend mode.
Note:
Before using safe suspend mode, you need to create a hibernation file. See page 59.
ThinkPad Features program: Page 35.
OS/2
WIN
If battery power is exhausted during suspend mode, the indicated status before entering suspend mode will be lost. To avoid this, you can use computer enters suspend mode the current memory data is stored on the hard disk, so that you can get the same status after resuming normal operation. And if battery power is exhausted during suspend mode, you can get the same status by turning on the computer. To use this function, do the following:
For OS/2 or Windows:
safe suspend
1
Start the ThinkPad Features program.
2
Select Power; then select the More... button.
3
If a hibernation file has not been created, click the
. In safe suspend mode, whenever the
Enable hibernation button and create the file on the internal hard disk.
4
Click on the Safe suspend box.
5
Select the OK button.
54 IBM ThinkPad 755CX User's Guide
Using Power Management
PS2 command:
Page 41.
DOS
For DOS:
1
If a hibernation file has not been created on the hard disk, type PS2 HFILE X; then press Enter to create a hibernation file.
2
Type PS2 SA E at the command prompt; then press Enter to enter safe suspend mode.
Considerations for Suspend Mode
Consider the following before using suspend mode:
Attached devices, such as a printer or serial device, stop running when the computer enters suspend mode. When normal operation is resumed, the output can differ from what you expect, because the device might be reset or lose its configuration settings.
When a power-on or hard-disk password is set, you must enter your password to resume normal operation.
The computer can enter suspend mode when used with the following operating systems:
– DOS Version 7.0 or later – OS/2 Version 2.11 or later – Microsoft Windows Version 3.11 with DOS Version 7.0 or
later
Important
When you use Windows Version 3.11, ensure that Advanced Power Management (APM) is installed according to the instructions in “Microsoft Windows Version 3.11 or Later” on page 177.
Note:
When the computer enters standby mode, you will hear a beep that is different from the one that sounds when entering suspend mode.
Chapter 3. Operating Your Computer 55
When the computer is powered with ac power and is using one of the following IBM PC Cards, it enters standby mode:
– IBM 3270 Emulation Credit Card Adapter – IBM 5250 Emulation Credit Card Adapter – IBM Token-Ring 16/4 Credit Card Adapter – IBM Credit Card Adapter for Ethernet
When other PC Cards are used, all application programs stop, and for some of these PC Cards the power to the PC Cards might also turn off.
Using Power Management
When the computer is powered with battery power, it turns power off to the PC Card, so the duration of suspend mode is longer. When resuming normal operation, if the PC Card or computer does not operate, restart the application or computer.
When the computer is using one of the following IBM modem cards and detects an incoming call while in suspend mode, it automatically resumes normal operation:
– IBM PCMCIA Data/FAX Modem – IBM High Speed PCMCIA Data/FAX Modem
While the communication link is active, the computer will not enter suspend mode.
56 IBM ThinkPad 755CX User's Guide

Hibernation Mode

Using Power Management
Note:
Using the Dock I, Dock II or a particular PC Card disables hibernation mode.
Note:
The time to enter or exit hibernation mode depends on the size of computer memory.
Before using hibernation mode, you must create a
hibernation file
See page 59 for instructions. During hibernation mode, all tasks are stopped, and memory data
and the current status of the computer are stored on the hard disk drive; then the power is turned off. When power is turned on again, the computer automatically restores the tasks and resumes normal operation. No battery power is used when the computer is in hibernation mode.
It takes approximately 10 seconds to enter hibernation mode, and 18 seconds to resume normal operation (with a base memory of 8MB). When the computer is entering hibernation mode, you receive a screen message, the computer sounds one short beep, and the suspend indicator blinks. You also will hear one short beep when the hibernation process is completed.
Chapter 3. Operating Your Computer 57
Using Power Management
The following shows what causes the computer to enter hibernation mode and to resume normal operation:
Fn key function: Page 48.
ThinkPad Features program: Page 35.
PS2 command: Page 41.
To Hibernation Mode
The Fn+F12 key
combination is pressed.
The PS2 HIB command is
used.
The hibernation button is pressed in the Fuel-Gauge program.
The time specified by the hibernate option after the expiration of suspend mode.
No activity occurs during the time specified by the
Suspend timer
of the ThinkPad Features program.
A low-battery condition is
detected.
The power switch is
pressed, when the
Hibernate by power switch option is set.
To Normal Operation
The power switch is
pressed.
58 IBM ThinkPad 755CX User's Guide
Creating the Hibernation File
Using Power Management
Warning:
The hibernation file must not be created in a compressed data area of the hard disk or external drive.
OS/2
To start the ThinkPad Features Program: Page 36.
PS2 command: Page 41.
WIN
DOS
When installing the operating system, or if you have expanded the computer memory, you must create a hibernation file on the hard disk drive to use hibernation mode.
The size of the hibernation file will be greater than total memory. For example, if base memory is 8MB and you have installed an optional 4MB IC DRAM card, the hibernation file is 13MB: (8MB plus 4MB) plus 1MB.
The following describes how to create a hibernation file for your operating system.
For OS/2 or Windows:
1.
Turn on the computer and start the ThinkPad Features program.
2.
Select Power; then select More....
3.
Click on the Enable Hibernation button in the
Suspend Options
menu.
4.
Make sure the hard disk drive in the computer is selected; then click on the OK button to create the hibernation file.
The computer can now enter hibernation mode.
For DOS:
1.
Turn on the computer.
2.
Type PS2 HFILE C at the command prompt and press Enter. C can be any drive letter up to Z.
The computer can now enter hibernation mode.
Chapter 3. Operating Your Computer 59
Using Power Management
Considerations for Hibernation Mode
Note:
If communication does not restart automatically, remove the PC Card and insert it again; then restart the application or computer.
Consider the following before using hibernation mode:
Do not run any tasks while the hibernation file is being created. Create the hibernation file only on the hard disk drive installed
in the computer.
The hibernation file is hidden and cannot be accessed.
The computer uses battery power to enter hibernation mode. Therefore, it reserves some battery power when it is set to enter hibernation mode at a low-battery condition. This can cause the battery operating time to be shorter than the time shown on page 20 and 21.
When the computer is powered with ac power and is using one of the following IBM PC Cards, it does not enter hibernation mode:
– IBM PCMCIA Data/FAX Modem – IBM High Speed PCMCIA Data/FAX Modem – IBM 3270 Emulation Credit Card Adapter – IBM 5250 Emulation Credit Card Adapter – IBM Token-Ring 16/4 Credit Card Adapter – IBM Credit Card Adapter for Ethernet
This prevents possible problems from occurring with communication application programs after the computer returns to normal operation.
When the computer is powered with battery power, it turns power off to the PC Card. When you resume normal operation, if the PC Card or computer does not operate, restart the application or computer.
60 IBM ThinkPad 755CX User's Guide

Using PC Cards

Using PC Cards
To insert the PC Card: Page 134.

About PC Cards

PC Card Director: Page 62.
Your computer has two slots that allow you to install one or two credit-card-size PC Cards. With a PC Card, you can communicate via a network, or you can store data.
The slots conform to PCMCIA Standard Release 2.1 (or later), which is defined as the hardware layer of the PCMCIA standard. Your computer comes with the following basic set of device drivers for PC Card support:
Socket Services Release 2.1 Card Services Release 2.1 PC Card Director
Card Services and Socket Services are the basic drivers required for all PC Cards. The PC Card Director sets up the PC Cards so they are ready to be used as soon as you insert them in the PCMCIA slot of the computer.
The PCMCIA slots support You can use two Type I or Type II PC Cards or one Type III PC Card in the PCMCIA slots. However, because the Type III PC Card is thicker than Type I or Type II PC Cards, you cannot use other types of PC Cards when using the Type III PC Card. Ask your IBM authorized reseller or IBM marketing representative for more information about the different types of PC Cards.
Type I, Type II,
and
Type III
PC Cards.
For more information about PC Cards, see Appendix B.
Limitations of Operation during Suspend and Hibernation Modes
Suspend mode: Page 53.
Hibernation mode: Page 57.
Chapter 3. Operating Your Computer 61
Some PC Cards can be installed or removed without turning off the computer (refer to the instructions that came with the PC Card), but you
cannot
Some PC Card types do not support hibernation mode.
remove or install PC Cards during suspend mode.
Using PC Cards

Using the PC Card Director Program

Auto Configurator: Page 231.
To install PC Card Director: Page 183.
The PC Card Director is an advanced IBM program that makes it easy to use PC Cards by:
Turning on and setting up a PC Card when you plug it in (by using
Auto Configurator
program). Showing what types of PC Cards are in your computer. Notifying you with a pop-up message, a beep, or icons
whenever a card is inserted or removed.
Allowing you to register an application program for a particular
PC Card and starting the program automatically when the card is inserted.
PC Card Director is on the PCMCIA Features Diskette and must be installed before you can use it.
PC Card Director requires the Socket Services and Card Services drivers.
Note:
The PCMCIA.CRD file does not always list the latest PC Cards. If your PC Card is not listed, try using it with PC Card Director anyway.
Some PC Cards come with their own drivers that will set the cards up just as PC Card Director does. However, if these cards are supported by PC Card Director, you will not need their drivers. The supported PC Cards are listed in the PCMCIA.CRD file on the PCMCIA Features Diskette.
If your PC Card is not supported by PC Card Director, you must install the driver that came with your card. The card driver must be compatible with PCMCIA Card Services Standard, Release 2.0 or
2.1. Follow the instructions in the card driver's manual to install the driver.
62 IBM ThinkPad 755CX User's Guide
Understanding the Meaning of Icons
The PC Card Director uses various icons to show you the status of the PCMCIA slots and the type of PC Card installed.
A Help button is available on most PC Card Director menu screens. To obtain additional information for each screen, click on this button.
Status Icons
Icon DOS Message Meaning
Empty No PC Card is installed in the
A PC Card is installed.
Using PC Cards
slot.
OK
Ready The PC Card in the slot is ready
to be used.
Not Ready The PC Card is not ready and
cannot be used.
Non Removal The PC Card cannot be removed.
Chapter 3. Operating Your Computer 63
Using PC Cards
Card-Type Icons
Icon DOS Message Meaning
Memory Memory card
Hard Disk Hard disk card
LAN Communication card
Modem Modem card
DOS
OS2
(Depends on the type of your PC Card.)
Boot DOS was booted from the PC
Boot OS/2 was booted from the PC
I/O card
Card that is installed.
Card that is installed.
64 IBM ThinkPad 755CX User's Guide
Using PC Cards
OS/2
Starting PC Card Director for OS/2:
Click on the PC Card Director icon on the OS/2 Desktop.
PCCardDirector
The following screen appears. “No. 1” is for the upper PCMCIA slot, and “No. 2” is for the lower slot.
Descriptions of the icons are on page 63.
PC CardDirector
Options Help
View
PCMCIA Socket-DetailView
No.
Status CardType Card Information
1
2
OK
X:XXXXXXXXXX,XXXXX-XX-XX XX
>
To view the details of a PC Card, select the slot with a pointing device, or use the Arrow keys and press Enter.
Chapter 3. Operating Your Computer 65
Using PC Cards
The following choices appear in the View pull-down menu:
PC CardDirector
Options
View Details
Icon
Status Card Type
No.
Help
PCMCIA Socket- DetailView
CardInf orm
Details shows the current status of the PCMCIA slots and
provides information about the installed PC Cards.
Icon shows the slot information with the slot number and the PC Card type. You can minimize the screen and keep it on the OS/2 Desktop to view the slot information.
PC CardDirector
Options Help
View
1
2 Modem
>
If you select Options, the following choices appear:
PC CardDirector
Options Help
View
Customize... Register...
No.
Status CardType
PCMCIA Socket- DetailView
Card Inform
Customize... sets beeps on or off or activates pop-up windows when a PC Card is inserted or removed.
Register... registers, updates, or deletes the PCMCIA application program installed for the PC Card.
66 IBM ThinkPad 755CX User's Guide
Using PC Cards
Register Object
Selectacardtype
Memory
ObjectList
Drag anddropWorkplaceobjectsbelow.
IBMAntiVirus/2 Program
Launch...
Automatically ascard isinserted, Automatically ascard isready.
Bym anualoperation.
V
OK
Help
Launch
Remove
After you register an application program, you can set it to start automatically when you insert the PC Card by selecting Automatically as card is inserted. You can register more than one application program for a PC Card. When you insert the card, the application programs are listed on the screen so you can select the one you want.
Chapter 3. Operating Your Computer 67
Using PC Cards
To register a PCMCIA application program, do the following:
1.
Select the type of PC Card on which the application program is to run.
2.
Type the application name in the Object List box or
drop
the icon of a program in the workplace of the Object List.
Register Object
Select aCardType
Memory
Object List
Drag &DropWorkplaceObjectbelow.
Launch...
Automatically asCard isReady. Automatically asCard isInserted. ByManualOperation.
V
drag and
OK
Help
Launch
Remove
3.
Select a choice from the Launch... box to run the application program automatically or manually.
Help is available on most menu screens for additional information.
68 IBM ThinkPad 755CX User's Guide
Using PC Cards
DOS
Starting PC Card Director for DOS
To start PC Card Director, type C:\THINKPAD\EZPLAY at the DOS prompt; then press Enter. The following screen appears. “Socket 1” is for the upper PCMCIA slot, and “Socket 2” is for the lower one.
(c) Copyright IBM Corp. 1995, Version x.xx
Card Services DOS Card Services Driver, Version x.xx PCMCIA Card Services
Release x.xx Revision x.xx
Socket Information
Socket Status Card Type Card Information
1 Empty
-> 2 Ready Memory x:xxxx xxxx, xxx xx-xx-xx xx
To view more information about an installed PC Card, highlight the item with the Arrow keys (, ); then press Enter.
PC Card Director
Chapter 3. Operating Your Computer 69
Using PC Cards
WIN
Note:
PC Card Director for Windows runs only in Enhanced mode of Windows
3.11 or later version.
Starting PC Card Director for Windows
Select PC Card Director in the ThinkPad window.
ThinkPad Features
PC Card Director
Power
Personalization
XXXXXXX XXX XXX
Display Alarm
?
ThinkPad
Features Help
The following screen appears. “No. 1” is for the upper PCMCIA slot, and “No. 2” is for the lower one.
PC CardDirector
Options Help
PC CardsSummary
No.
Status
Card Type
Card Information
ThinkPad
Setup
Docking
Control
Fuel
?
Docking
Control Help
1
Empty
OK
2
Ready Memory
Card Info...
X:XXXXX XXXXX, XXXXX-XX-XX XX
Appl.R egister...
PCCard Director
Card Info... shows details of a PC Card installed in a PCMCIA slot. To view information about a PC Card, highlight the item with the Arrow keys (, ) or pointing device; then click on this button. You also can register a PC Card type, when a card type appears as unknown.
Appl. Register... registers, changes, or deletes a PC Card application program. An application can run automatically according to the PC Card type, if you specify the Run Automatic
70 IBM ThinkPad 755CX User's Guide
Using PC Cards
option. If you register more than one application for each type of PC Card, select the application you want to run from the list that appears when the PC Card is installed.
If you select Options from the menu bar, the following choices appear:
Options Help
Customize... Register...
Customize... sets beeps on or off or activates pop-up windows when the details of an installed PC Card change. It also sets whether a single icon or multiple icons are used when the PC Card Director screen is minimized. The following shows the two types of minimized PC Card Director icons:
Single icon
This icon temporarily changes when a PC Card is removed or installed if the Pop up Main Window option is not specified.
PC CardDirector
Multiple icons
1
2
These icons show the card status of both PC Cards installed in the slots.
The icon for each slot temporarily changes
PC CardDirector
when a PC Card is removed or inserted if the Pop up Main Window option is not specified.
Register... does the following:
Register Applications
registers, changes, or deletes an application program according to the PC Card type, even when a PC Card is not installed in the slot.
Change Card Type
changes a registered PC Card type to
another type.
Help is available on most menu screens for additional information.
Chapter 3. Operating Your Computer 71
Communicating with the Infrared Port

Using the Infrared Communication Feature

Note:
When installing an operating system, you must install the infrared device driver to use the ThinkPad mode.
To install infrared device driver: Page 196.
Notes:
Mbps
: Million bits per second
Kbps
: Kilobits per second
PS2 command: Page 41.
Your computer is equipped with an infrared (IR) communication feature that allows point-to-point communication with other ThinkPad computers or systems equipped with an infrared port. The computer has two infrared ports, one in the front of the computer below the diskette drive and another on the rear of the computer.
The infrared feature supports three modes with the following communication speed in bits per second (bps):
ThinkPad (1.15 Mbps)
This mode is used when communicating with another 755 series computer with an infrared port or other systems supporting ThinkPad mode.
Generic (up to 115 Kbps)
This mode is used when communicating with other IBM ThinkPad computers, Hewlett-Packard** 100LX**, 200LX**, Omnibook**, or other systems with infrared ports supporting Generic mode.
Sharp (9600 bps)
This mode is used when communicating with the Sharp** Wizard** or other systems with infrared ports supporting Sharp mode.
The ThinkPad Features program contains a utility program that enables the front or rear infrared port and the communication speed.
If you are using OS/2 or Windows: See page 39. If you are using DOS: Type PS2 ? IR at the command prompt;
then press Enter for more information.
72 IBM ThinkPad 755CX User's Guide
Communicating with the Infrared Port
During communication with rear infrared ports, the infrared ports
must face directly with each other at a communicating distance.
It is recommended that the communicating ThinkPad computers use their rear infrared port to communicate with each other.
When communicating between a front infrared port and an infrared port on another computer, the infrared ports on the computers must face directly each other at a communicating distance.
Chapter 3. Operating Your Computer 73
Communicating with the Infrared Port
Communication can be affected by the light from the LCD of the computer. To avoid this, open the LCD of the computer to a wide angle:

Considerations for Communication

Consider the following when communicating with the infrared ports.
Side View
You need to run the same communication application to communicate between your computer and the other computer or device. Refer to the application manuals for more information.
Run only one application at a time to communicate with the infrared ports.
When using applications that use a conventional serial port and serial cable to exchange data, your computer infrared ports are used as a replacement for the serial port and cable. In this case, the ThinkPad mode cannot be used.
The communicating distance might be less if:
– The other system is not the same model as your computer. – There is interference from the ambient light. It is
recommended not to use infrared communication during bright sunshine or artificial light conditions.
– The infrared port is not directly facing the other
communicating port.
74 IBM ThinkPad 755CX User's Guide

Using the Mwave DSP Features

Using the Mwave DSP Audio Features
Note:
In some countries, the Mwave telephony functions are available only after the DAA/Telephony Kit option is installed.
Note:
You can use an electric condenser microphone (with battery) for sound recording.
Note:
For more information about MIDI, see “Mwave MIDI Overview” on page 244.
The computer provides an Mwave system, which is based on the
digital signal processor (DSP).
It gives you the best performance when you use it for audio and telephony functions, and it supports a more natural way of communicating with your computer.
The Mwave DSP system supports a full complement of audio and telephony functions including the following:
Audio functions:
– Supports the wave audio record and playback up to 16-bit,
stereo and 44 kHz sampling
– Provides a high-quality MIDI wave table synthesizer with
128 instruments and up to 32 voices
– Supports DOS games by using the Sound Blaster**
interface
Telephony functions:
– Supports data modem up to 14 400 bps – Supports fax modem up to 14 400 bps – Supports speaker phone function – Supports telephone answering machine function
Chapter 3. Operating Your Computer 75
Using the Mwave DSP Audio Features
Note:
In some countries, the Mwave telephony functions are available after the DAA/Telephony Kit option is installed.
Headphone Jack
Headset
The following shows the connection between the computer and the external cables or devices:
Microphone/Line-in Jack
Modem/Fax Port
Headphone Jack
Microphone/Line-in Jack
Modem/Fax Port
WhentheDAA/TelephonyOptionKitisinstalled:
Microphone/Line-in Jack
Modem/Fax Port
Note:
The headset is available as an option in some countries.
Headphone Jack
Data Access Arrangement
76 IBM ThinkPad 755CX User's Guide
Using the Mwave DSP Audio Features
To install the Mwave DSP support software: Page 192.
OS/2
DOS
WIN
The Mwave DSP supports the following functions for each operating system.
For OS/2:
– Wave audio record and playback
– MIDI synthesizer
– Sound Blaster support in the DOS session
– Data modem
For DOS:
– Sound Blaster support
– Data modem
For Windows:
– Wave audio record and playback
– MIDI synthesizer
– Sound Blaster support in the DOS session – Data modem – Fax modem – Speaker phone
– Telephone answering machine
Chapter 3. Operating Your Computer 77
Using the Mwave DSP Audio Features

Using the Audio Function

Use the Mwave audio functions according to your operating system.
OS/2
For OS/2
The Mwave feature supports the audio function in the OS/2 environment through Multimedia Presentation Manager/2 (MMPM/2). To use the Mwave audio functions with OS/2, refer to the MMPM/2 manuals.
For Your Information
To play the audio files in the MMPM/2 environment:
When you play the wave audio files, select the Digital Audio icon.
When you play the MIDI sequencer files, select the MIDI icon.
78 IBM ThinkPad 755CX User's Guide
Using the Mwave DSP Audio Features
DOS
Note:
If you have exited Windows and returned to DOS, you might have to run MWGAMES ON again to enable the Sound Blaster support.
For DOS
The Mwave feature supports the audio for DOS games through the
Sound Blaster
To enable Sound Blaster support for DOS games:
To disable the Sound Blaster support for DOS games:
Creating a Boot Diskette
To have enough memory for your games, you should make a
diskette
do the following:
1.
Turn on the computer and start DOS.
2.
Insert a blank diskette into the diskette drive.
3.
Type MAKEBOOT at the DOS prompt; then press Enter. A boot diskette has started to be created. Before starting your
games, restart your computer with this boot diskette inserted into the diskette drive.
Some sample files, such as CONFIG.SYS file, will be created on the boot diskette. You might need to modify these files by referring to the manuals that came with your game.
support.
Type MWGAMES ON at the DOS prompt; then press Enter.
Type MWGAMES OFF at the DOS prompt; then press
Enter.
boot
before starting the DOS games. To make a boot diskette,
Default Values for DOS Games Audio
Most games automatically determine the I/O address, interrupt level (IRQ), and DMA channel settings for the audio for DOS games. If the game asks for this information, specify the default settings of the Sound Blaster as follows:
I/O Address 220
Interrupt Level (IRQ) 5
DMA Channel 1
PS2 command:
Page 41. ThinkPad Features setup
menu: Page 39.
Chapter 3. Operating Your Computer 79
If you need to change these settings, do the following:
For DOS, use the PS2 command (PS2 SB command). For the DOS session of OS/2 and Windows, select DSP from
the ThinkPad Setup window.
Using the Mwave DSP Audio Features
WIN
Note:
To use the Mwave audio features in WIN-OS/2, install the Mwave DSP support software for Windows in the full-screen WIN-OS/2 session.
To install Mwave support software: Page 195.
Recorder
For Windows or WIN-OS/2
To use Mwave audio functions in Windows or WIN-OS/2, double-click on the Mwave ThinkPad icon in the Windows Program Manager.
A window similar to the following appears:
Mwave ThinkPad
FAX
Modem
Modem 14400
Recorder Audio C ontrol
Discriminator
Country
Selection
MIDI
Select
Synthesizer
Record and Playback the Wave Audio Files
When you double-click on the Recorder icon, the following window appears:
Mwave Recorder
File Edit Options Help
Mono 11.025 kHz 8 Bit 0 bytes
Position: 00:00.00 Length: 00:00.00
Marker A ClearA MarkerB ClearB
Command Reference
View
Connectors
Record Play Rewind Fast-F Stop
This window allows you to record and playback the wave audio files.
Note:
You can use an electric condenser microphone (with battery) for sound recording.
This window is similar to the
Windows Sound Recorder
, which provides wave recording and playback functions; however, this window has additional features for controlling the record quality and file size.
80 IBM ThinkPad 755CX User's Guide
Audio Control
Using the Mwave DSP Audio Features
Audio Control
When you double-click on the Audio Control icon, the following window appears:
Mwave AudioControl
Record Control Output Control
Source
Mic
Line
CD+Line
Level Aux
MIDISynth
Wave Audio Master
Audio
Options..
LR
Mute Mute
LR
LR
Mute
LR
Mute
LR
Mute
This window allows you to control the audio volume as follows: Record control
This section enables you to select which source you want to use, adjust the record level, monitor the input signal, and select an options menu for additional control.
Output control
This section allows you to adjust the balance and sound levels, and control the mute. And, it can be considered a stereo amplifier with three input signals, controls to mix the input signals, and a volume control for the output.
Audio button
This is used to enable the following audio features:
– Audio/Image Synch in the Options menu
– Aux Source
Important
Disable the Audio button before you use a speaker phone application.
If the Audio button is enabled, the speaker phone application does not operate correctly and displays an error message on the screen.
Chapter 3. Operating Your Computer 81
Using the Mwave DSP Audio Features
Note:
Selecting the Audio/Image Synch on the
Options
response speed; however, the increase in DSP resources can effect your ability to concurrently use some Mwave applications.
Note:
If you enable Aux Source, the computer will consume more battery power. Disable Aux Source when you do not use it.
Note:
When you play the MIDI files in the WIN-OS/2 environment, see “Considerations for the WIN-OS/2 Environment” on page 83.
menu improves the
Options button
Audio Mode
If you are using some applications with sounds and animation (for example, games or screen saver programs), try this option to make the application work more quickly.
Aux Source
Select the source you want to listen to by the computer speaker or headphones.
Playing the MIDI Sequencer Files
To play the MIDI sequencer files in Windows, use the Windows Media Player as follows:
1
Start Windows; then open the Accessories group.
2
Double-click on the Media Player icon.
3
When the Media Player window appears, select the Device on the menu bar; then select MIDI Sequencer... from the pull-down menu.
MediaPlayer
File Device Scale Help
Sound... MIDISequencer...
4
Click on the File on the menu bar; then select Open... from the pull-down menu.
5
Highlight your favorite MIDI file with your pointing device; then click on OK.
6
To begin playing the MIDI file, click on the Play ( ) button.
82 IBM ThinkPad 755CX User's Guide
Note:
When you use wave audio and at the same time, select 24 voices (the default value).
Note:
Volume of the Sound Blaster sound can be controlled by using the following key combinations:
Ctrl+Alt+U (volume up) and Ctrl+Alt+D (volume down).
Aux
Using the Mwave DSP Audio Features
Select Synthesizer
MIDI
When you select the
icon in the
Mwave ThinkPad
window, you can change the number of voices supported by the MIDI synthesizer.
Sound Blaster support
For Windows, Mwave supports the Sound Blaster support in a DOS session. It is not necessary to type MWGAMES ON to enable the support, this is done automatically. Simply open a DOS session and start the game.
Considerations for the WIN-OS/2 Environment
Note:
When you use the WIN-OS/2 environment, see “For Windows or WIN-OS/2” on page 80.
The following are considerations when playing MIDI files in the WIN-OS/2 environment.
To play MIDI files in the WIN-OS/2 environment
Desktop
, the Audio Mode in the
Mwave Audio Options
from the OS/2
menu
must be set to Normal (not Audio/Image Synch).
The MWS.EXE program must be running in the same session as the program that runs the MIDI file. If you use multiple WIN-OS/2 sessions, MWS.EXE must be started in each session. To run MWS.EXE, migrate it to the OS/2 Desktop and start it before starting the MIDI application programs. To migrate MWS.EXE to the OS/2 Desktop, refer to the OS/2 manuals.
Chapter 3. Operating Your Computer 83
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