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IBM ThinkPad 755CX User Manual

Manual is about: ThinkPad 755CX Computer

Summary of ThinkPad 755CX

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    I.

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    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 inc...

  • Page 3: Thank You For Selecting

    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 yo...

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    Distinctive system features config restart trackpoint iii tft color lcd screen security features fn key function power management thinkpad features program pcmcia support long-life battery pack easy-setup mwave dsp audio, telephony, and data/fax modem features thinkpad features 1 8 2 6 4 10 11 9 3 7...

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    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, t...

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    Vi ibm thinkpad 755cx user's guide.

  • Page 7: About This Book

    About this book this user's guide contains information that will help you operate the ibm thinkpad 755cx computer (hereafter called 755cx or computer). Chapter 1, “getting started,” describes the product map and explains how to set up your computer. Chapter 2, “getting familiar with your computer,” ...

  • Page 8: Information Notices

    Information notices this user's guide contains notices that relate to specific information or text. Usild lke sejk providing power olkesaduyelksfaksayoi sdalkjsfoiudlfek. Sakjeoi alkfsdoiu eksafdlkje fasdoiy: tklksfoialkthkes elksdfkoiasfue. 1 109 chapter2. Yoekfblksdlekjf warning: oilek alk sadkjsf...

  • Page 9: Electrical Safety Notice

    Electrical safety notice danger: the power cord must be used with a properly grounded outlet. 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 pro...

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    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)...

  • Page 11: Contents

    Contents about this book . . . . . . . . . . . . . . . . . . . . . . . . . . . Vii information notices . . . . . . . . . . . . . . . . . . . . . . . . . . Viii treatment of icons . . . . . . . . . . . . . . . . . . . . . . . . . . Viii electrical safety notice . . . . . . . . . . . . . . . . . . . ....

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    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 . . . ....

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    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 think...

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    Screen messages . . . . . . . . . . . . . . . . . . . . . . . . . 206 error codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . 208 general problems . . . . . . . . . . . . . . . . . . . . . . . . . 210 what if testing cannot find the problem? . . . . . . . . . . . . 211 battery power prob...

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    Appendix e. Product warranties and notices . . . . . . . . 255 notices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 261 trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . . . 261 electronic emission notice . . . . . . . . . . . . . . . . . . . . . 263 glossary . . . ...

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    Xvi ibm thinkpad 755cx user's guide.

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    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 product map and the steps for setting up the computer. Abou...

  • Page 18: About The Product Map

    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 ite...

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    Getting started 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...

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    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.

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    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 graph...

  • Page 22: Setting Up Your Computer

    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 o...

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    Getting started 2 right side view 2 1 1 2 2 1 3 3 1 chapter 1. Getting started 7.

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    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...

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    Getting started 2 3 1 4 5 6 7 chapter 1. Getting started 9.

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    Getting started 10 ibm thinkpad 755cx user's guide.

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    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 . . . . . . . . . . . . . . ....

  • Page 28: Locations And Functions

    Locations and functions locations and functions this section provides additional useful information about your computer. Front view 1 2 4 6 3 5 7 8 9 12 11 13 14 10 10 15 16 12 ibm thinkpad 755cx user's guide.

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    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 65 536 colors. 755cx vga mod...

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    Locations and functions inside view rear view bottom view 6 14 ibm thinkpad 755cx user's guide.

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    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...

  • Page 32: System-Status Indicators

    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 ...

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    System-status indicators symbol color meaning 7 numeric lock green indicates that the numeric keypad on the keyboard is enabled. The 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 num...

  • Page 34: Providing Power

    Providing power providing power your computer can be operated with the ac adapter, battery pack, or car battery adapter (available as an option). Ac adapter note: when the ac adapter is connected, and the remaining power of the installed battery pack is less than a certain amount, discharging and th...

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    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.

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    Providing power 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 s...

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    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): note: * the operating time depends on the options used with the computer, the frequency of key i...

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    Providing power for your information standby battery: your computer has another rechargeable battery, called the standby battery. It supplies the necessary 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...

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    Using the trackpoint iii operating with 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. Pointing, selecting, and dragging all become part of a single p...

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    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. 1 place your hands in the typing position and press gently on the stick with either index finger...

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    Using the trackpoint iii 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. Chapter 2. Getting familiar with your computer 25.

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    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 ...

  • Page 43: Using The Display

    Using the display 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...

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    Using the display using a dos application with your 755cx svga model 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 compatibil...

  • Page 45: Using The Online Book

    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. You can view this user's guide online to retrieve information when the hardcopy book is not availabl...

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    Keeping the computer from being damaged keeping the computer from being damaged 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...

  • Page 47: Carrying The Computer

    Carrying the computer carrying the computer when carrying your computer, follow these instructions to prevent possible damage to your computer and data: note: to reduce the weight of the computer when traveling, remove the diskette drive if you will not be using it. 1 remove any diskette from the di...

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    Carrying the computer 32 ibm thinkpad 755cx user's guide.

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    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 t...

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    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 an operating system screen appears when the computer is operating correctly. The screen appearance may differ depending on your operating...

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    Using the thinkpad features program using the thinkpad features program to install the thinkpad features program: page 180. 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 display a...

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    Using the thinkpad features program os/2 win 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. Note: the screen might be different from the actual one. Thinkpad features power display alarm thinkpad setup fuel...

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    Using the thinkpad features program power power menu 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: note: * the values for both high performance mode and automatic mode are prese...

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    Using the thinkpad features program display display menu 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 al...

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    Using the thinkpad features program thinkpad setup thinkpad setup menu 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 al...

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    Using the thinkpad features program fuel the fuel-gauge program shows you the following battery-power information: remaining power percentage current power mode discharge options fuel-gauge program: page 98. Personalization the personalization utility program allows you to display personal data, suc...

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    Using the thinkpad features program os/2 win dos using the ps2 program 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. To start the ps2 program, type ps2 or ps2 ? At the command prompt; the press enter. The foll...

  • Page 58: Using Easy-Setup

    Using easy-setup using easy-setup warning: do not enter suspend mode when using easy-setup. The computer has a built-in system setup function called easy-setup. Easy-setup allows you to set the date and time, passwords, the startup sequence of the drives, and various hardware configurations, such as...

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    Using easy-setup config config contains the following: memory keyboard serial parallel systemboard initialize exit memory memory shows the amount of installed memory and available memory remaining. Keyboard keyboard enables you to set the repeat-action (typematic) speed and enables or disables the t...

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    Using easy-setup date/time date/time is used to set the current date and time. 23:59:59 1995 .03.31 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 settin...

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    Using easy-setup start 1 2 3 start up is used to change the startup sequence of your computer. 3 4 hdd-3 hdd-4 pcmcia note: for more information about the startup sequence, see “using the selectable drive-startup sequence” on page 47. The hdd-1 icon represents the internal hard disk drive of the com...

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    Using easy-setup restart click on restart to restart the computer after you have made your selections. Then press enter or click on ok. 46 ibm thinkpad 755cx user's guide.

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    Using easy-setup using the selectable drive-startup sequence 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. Selectable drive sta...

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    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/pointi...

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    Using the fn key function 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...

  • Page 66: Using Power Management

    Using power management using power management to use the thinkpad features program: page 35. 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.) –...

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    Using power management 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...

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    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 funct...

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    Using power management suspend mode 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 f...

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    Using power management the current status of the computer is shown by the following indicators: current status indicators suspend mode power-on in suspend mode green off entering or resuming suspend blinking green off normal operation off green safe suspend warning: do not move the computer when it ...

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    Using power management 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. Ps2 command: page 41. Considerations for suspend mod...

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    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 th...

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    Using power management hibernation mode before using hibernation mode, you must create a hibernation file. See page 59 for instructions. Note: using the dock i, dock ii or a particular pc card disables hibernation mode. During hibernation mode, all tasks are stopped, and memory data and the current ...

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    Using power management the following shows what causes the computer to enter hibernation mode and to resume normal operation: fn key function: page 48. 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 progra...

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    Using power management creating the hibernation file warning: the hibernation file must not be created in a compressed data area of the hard disk or external drive. When installing the operating system, or if you have expanded the computer memory, you must create a hibernation file on the hard disk ...

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    Using power management considerations for hibernation mode 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 can...

  • Page 77: Using Pc Cards

    Using pc cards using pc cards to insert the pc card: page 134. 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. About pc cards the slots conform to pcmcia standard release 2.1 (or lat...

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    Using pc cards using the pc card director program the pc card director is an advanced ibm program that makes it easy to use pc cards by: auto configurator: page 231. 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 yo...

  • Page 79

    Using pc cards 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 bu...

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    Using pc cards card-type icons icon dos message meaning memory memory card hard disk hard disk card lan communication card modem modem card (depends on the type of your pc card.) i/o card dos boot dos was booted from the pc card that is installed. Os2 boot os/2 was booted from the pc card that is in...

  • Page 81

    Using pc cards os/2 starting pc card director for os/2: click on the pc card director icon on the os/2 desktop. Pc card director 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. Ok options help view pcmci...

  • Page 82

    Using pc cards the following choices appear in the view pull-down menu: options help view pcmcia socket - detail view no. Status card type card inform details icon pc card director details shows the current status of the pcmcia slots and provides information about the installed pc cards. Icon shows ...

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    Using pc cards register object memory ok help v object list launch... Ibm antivirus/2 program launch remove select a card type drag and drop wo rkplace objects below. Automatically as card is inserted, automatically as card is ready. By manual operation. After you register an application program, yo...

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    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 drag and drop the icon of a program in the workplace of the object list. Register object select ...

  • Page 85

    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. Pc card director (c) copyright ibm corp. 1995, vers...

  • Page 86

    Using pc cards win starting pc card director for windows note: pc card director for windows runs only in enhanced mode of windows 3.11 or later version. Select pc card director in the thinkpad window. Thinkpad features power display alarm thinkpad setup fuel thinkpad features help xx xxxxx x xx xxx ...

  • Page 87

    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... Cus...

  • Page 88

    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. Your computer is equipped with an infrared (ir) communication feature that allows point-to-point communicatio...

  • Page 89

    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 communi...

  • Page 90

    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: side view considerations for communication consider the following when communicating with the infrared ports. You need to run the...

  • Page 91

    Using the mwave dsp audio features using the mwave dsp features note: in some countries, the mwave telephony functions are available only after the daa/telephony kit option is installed. The computer provides an mwave system, which is based on the digital signal processor (dsp). It gives you the bes...

  • Page 92

    Using the mwave dsp audio features note: in some countries, the mwave telephony functions are available after the daa/telephony kit option is installed. The following shows the connection between the computer and the external cables or devices: modem/fax port when the daa /telephony option kit is in...

  • Page 93

    Using the mwave dsp audio features to install the mwave dsp support software: page 192. The mwave dsp supports the following functions for each operating system. Os/2 for os/2: – wave audio record and playback – midi synthesizer – sound blaster support in the dos session – data modem dos for dos: – ...

  • Page 94

    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 ...

  • Page 95

    Using the mwave dsp audio features dos for dos the mwave feature supports the audio for dos games through the sound blaster support. To enable sound blaster support for dos games: type mwgames on at the dos prompt; then press enter. Note: if you have exited windows and returned to dos, you might hav...

  • Page 96

    Using the mwave dsp audio features win for windows or win-os/2 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 use mwave audio functions in windows or win-os/2, double-click on the mwave thinkpad icon in th...

  • Page 97

    Using the mwave dsp audio features audio control audio control when you double-click on the audio control icon, the following window appears: mwave audio control record control output control source cd+line audio options.. Level aux midi synth wave audio master mute mute mute mute mute l r l r l r l...

  • Page 98

    Using the mwave dsp audio features note: selecting the audio/image synch on the options menu improves the response speed; however, the increase in dsp resources can effect your ability to concurrently use some mwave applications. Options button – audio mode if you are using some applications with so...

  • Page 99

    Using the mwave dsp audio features select synthesizer note: when you use wave audio and aux at the same time, select 24 voices (the default value). When you select the midi icon in the mwave thinkpad window, you can change the number of voices supported by the midi synthesizer. Sound blaster support...

  • Page 100

    Using the mwave dsp telephony features using the telephony function in some countries, the mwave telephony functions are available after the daa/telephony kit option is installed. To install daa/telephony kit on the computer, see “installing the daa/telephony kit” on page 155 and the documentation t...

  • Page 101

    Using the mwave dsp telephony features using the mwave modem the mwave data modem can be used with the windows terminal emulator to access your favorite bulletin board or online system (prodigy ** , compuserve ** , america online ** , or other online systems). Important before you start the communic...

  • Page 102

    Using the mwave dsp telephony features 2 double-click on the modem 14400 icon. The mwave modem starts automatically, and the following modem window appears: mwave modem 14400 actions help mr dtr sd rd oh cd aa hs ready 3 start your communication program. Stopping the modem: when you finish using the...

  • Page 103

    Using the mwave dsp telephony features modem 14400 mwave data modem the mwave telephony features support direct attachment to the public switched telephone network. The mwave data modem supports the standard com port interface and can be used with the communication application programs that use the ...

  • Page 104

    Using the mwave dsp telephony features country selection using the country selection important each country has restrictions to communicate when using telephone lines. Use this window whenever you travel to other countries. Note: in some countries, the mwave telephony functions are available after t...

  • Page 105

    Using the mwave dsp telephony features mwave fax modem the mwave telephony features offer you the following fax functions: call progress monitor automatic-dialing feature support for a windows mci ** fax application interface use of direct memory access (dma) instead of a com port to increase perfor...

  • Page 106

    Using the mwave dsp telephony features mwave telephone answering machine note: when you use the telephone answering machine function, refer to the manual that came with the application program package. The mwave telephony features allow you to use the computer as a telephone answering machine as fol...

  • Page 107

    Chapter 4. Using battery power this chapter provides information about battery-pack operations. Operating time with the battery pack . . . . . . . . . . . . . . . 92 charging the battery pack . . . . . . . . . . . . . . . . . . . . . 92 charging with the ac adapter . . . . . . . . . . . . . . . . . ...

  • Page 108: Charging The Battery Pack

    Battery-powered operation operating time with the battery pack the battery pack is an internal power source for the computer. 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 shorte...

  • Page 109

    Battery-powered operation charging with the ac adapter the following procedure describes how to recharge the battery pack with the ac adapter when the computer is turned off. Note: make sure the locking lever for the hard disk drive is unlocked. 1 turn off the computer and open the keyboard. Note: w...

  • Page 110

    Battery-powered operation the following tables show the approximate charging times for the battery pack. When you use the lithium ion battery pack: when you use the nimh battery pack: conditions charging time operational charging 2.0–2.5 hours power-off charging 1.5–2.0 hours suspend-mode charging 1...

  • Page 111

    Replacing the battery pack replacing the battery pack warning: if you are using pc cards, either connect the ac adapter, or stop the pc card application and remove the pc cards before doing these steps. A spare battery pack is available as an option. Replace the current battery pack when its power b...

  • Page 112

    Using the battery-power status indicator monitoring the battery-power status you can determine the battery condition through the battery-power status indicator and the fuel-gauge program. Using the battery-power status indicator fuel-gauge program: page 98. Compare the battery-power status indicator...

  • Page 113

    Using the battery-power status indicator status condition action required off the battery pack is not installed. The computer is turned off. The computer is in suspend mode when the ac adapter is not connected. You should take the necessary actions when the blinking orange condition occurs, before t...

  • Page 114

    Using the fuel-gauge program using the fuel-gauge program note: when you install an operating system, you must also install the thinkpad features program before you can use the fuel-gauge program. The fuel-gauge program displays the battery-pack condition on the screen. The fuel-gauge program appear...

  • Page 115

    Using the fuel-gauge program os/2 win fuel-gauge program for os/2 and windows when you press the fn + f2 key combination with os/2 or windows, the fuel-gauge program appears, as shown in the following illustrations: notes: 1. The power source (ac adapter or battery) and power mode alternately appear...

  • Page 116

    Using the fuel-gauge program discharging the battery pack for os/2 and windows note: the battery charging indicator starts blinking when discharging starts. When the battery pack needs to be discharged, the computer prompts you with a message. To discharge the battery, connect the ac adapter to the ...

  • Page 117

    Using the fuel-gauge program dos fuel-gauge program for dos when you press the fn + f2 key combination with dos, the fuel-gauge program appears at the top-right corner of the screen as shown in the following. When the ac adapter is connected: when the ac adapter is connected to the computer, the fol...

  • Page 118

    Using the fuel-gauge program when operated with battery: when the computer is operating with battery power, the following messages alternately appear: power mode: page 37. Power mode – high (for high performance mode) – auto (for automatic mode) – customized (for customized mode) custom remaining po...

  • Page 119

    Preserving battery-pack life preserving battery-pack life to preserve the life of the battery pack: do not charge it until all of its power is used. Once you have started charging the battery pack, do not use it until it is fully charged. Turn off the computer whenever it is not in use. Warning: whe...

  • Page 120

    Maximizing the battery-powered operation maximizing battery-powered operation to save battery power effectively: use advanced power management (apm) decrease the lcd brightness use power-saving modes use power-saving options using advanced power management note: if you have purchased the computer wi...

  • Page 121

    Maximizing the battery-powered operation win when you use windows, do the following to check and install apm for windows: 1. Start the system. Make sure that the current directory has windows (usually c:\windows>). 2. Type setup at the command prompt and press enter. The following screen appears. Wi...

  • Page 122

    Maximizing the battery-powered operation using power-saving modes for other ways to enter: standby mode: page 52. Suspend mode: page 53. Enter standby mode or suspend mode whenever you are not using the computer. One of the easiest ways to enter the modes is to use the fn key function: to enter stan...

  • Page 123

    Maximizing the battery-powered operation using power-saving options note: if you have installed an operating system, make sure you also install the thinkpad features program. The power-saving options specified in each power mode save battery power and make it possible to use the battery pack longer ...

  • Page 124

    Maximizing the battery-powered operation the following figure helps you determine how much power is normally required for each computer feature, and how much is required when the feature is controlled by the power-management function: maximum medium slow minimum processor hard disk off saving power ...

  • Page 125

    Chapter 5. Protecting your computer this chapter provides information about how to protect your computer and its internal devices. Using passwords . . . . . . . . . . . . . . . . . . . . . . . . . . . 110 power-on password . . . . . . . . . . . . . . . . . . . . . . . 110 setting a power-on password...

  • Page 126: Using Passwords

    Using the passwords using passwords there are three types of passwords you can use to protect your computer and the removable hard disk drive: the power-on password protects your computer from being used by unauthorized persons. The hard-disk password protects the data on your removable hard disk dr...

  • Page 127

    Using the passwords setting a power-on password to set power-on password, do the following: easy-setup: page 42. 1 start easy-setup and select the password icon. 2 select the power-on icon ( ). 3 type your desired power-on password; then press enter. You can use any combination of up to seven charac...

  • Page 128

    Using the passwords changing a power-on password you must change your power-on password at the password prompt. You cannot change it after normal operation is resumed. To change a power-on password, do the following: important do not press enter until you have finished all the steps to change the po...

  • Page 129

    Using the passwords removing a power-on password you must remove your power-on password at the password prompt. You cannot remove it after normal operation is resumed. To remove a power-on password, do the following: 1 turn off the computer and wait at least 5 seconds; then turn it on. 2 when the pa...

  • Page 130

    Using the passwords hard-disk password the hard-disk password helps protect the information stored on your removable hard disk drive. When this password is set, the information stored on your hard disk drive cannot be accessed without it. Note: do not press the spacebar after you enter the password;...

  • Page 131

    Using the passwords setting a hard-disk password to set a hard-disk password, use easy-setup and do the following: to start easy-setup: page 42. 1 start easy-setup; then select the password icon. 2 select the hard-disk icon ( ). 3 type your desired hard-disk password; then press enter. You can use a...

  • Page 132

    Using the passwords changing a hard-disk password the procedure to change a hard-disk password depends on whether or not it is set the same as the power-on password. When the hard-disk password is set the same as the power-on password, remove the hard-disk password by following the steps in “removin...

  • Page 133

    Using the passwords removing a hard-disk password the procedure to remove a hard-disk password depends on whether or not it is set the same as the power-on password. When the hard-disk password is set the same as the power-on password, remove the hard-disk password by following the steps in “removin...

  • Page 134

    Using the passwords supervisor password the supervisor password helps protect classified information. It: secures the system information stored in easy-setup. Prohibits modification to the hardware. Stops the computer after a post error to restrict access to the system information. Overrides the pow...

  • Page 135

    Using the passwords setting a supervisor password to set a supervisor password, do the following: to start easy-setup: page 42. 1 start easy-setup; then select the password icon. 2 select the supervisor icon ( ). 3 type your desired supervisor password; then press enter. You can use any combination ...

  • Page 136

    Using the passwords changing a supervisor password do the following to change your supervisor password: 1 turn off the computer and wait at least 5 seconds; then turn it on. To start easy-setup: page 42. 2 start easy-setup. Type your current supervisor password at the power-on prompt ( ); then press...

  • Page 137

    Using the passwords removing a supervisor password do the following to remove the supervisor password: 1 turn off the computer and wait at least 5 seconds; then turn it on. To start easy-setup: page 42. 2 start easy-setup. When the power-on prompt ( ) appears, type your current supervisor password; ...

  • Page 138

    Using the passwords using the hard-disk and power-on passwords you can use a hard-disk password with a power-on password. When you turn on the computer, you are prompted to enter first the power-on password and then the hard-disk password. The hard-disk password can be the same as the power-on passw...

  • Page 139

    Using the passwords using several hard disk drives with the supervisor password because the supervisor password automatically sets a hard-disk password, you must set a supervisor password for each hard disk drive you are using. To change or remove a supervisor password when you are using several har...

  • Page 140

    Using the passwords changing or removing the supervisor password when using several hard disk drives to change or remove the supervisor password when using more than one hard disk drive on your computer, do the following: to change the supervisor password: page 120. 1 change or remove your superviso...

  • Page 141

    Using the personalization utility program using the personalization utility program os/2 win you can display personal information, such as your name or address, every time the computer is turned on with a power-on or hard-disk password set. This can help you when you misplace your computer. Because ...

  • Page 142

    Using the personalization utility program notes: 1. Do not use the tab key when typing your information. Use the spacebar instead to insert space between text. 2. You can use any type of font or font size. 3. A sample file ( perssamp.Wri ) is available on the utility diskette. 4 create your text inf...

  • Page 143

    Using the personalization utility program 5 create the background of your password-prompt screen as follows: a) select the paintbrush icon. B) select options; then image attributes... From the pull-down menu. C) specify a width of 160 and height of 100; then select pels under “units” and colors for ...

  • Page 144

    Using the personalization utility program 6 save your data using the personalization editor of thinkpad features program as follows: a) select the personalization icon in the thinkpad features program. The following screen appears: personalization editor file help personal data... Background... Conv...

  • Page 145

    Using the personalization utility program 7 close all applications; then turn off the computer. 8 insert the backup copy of the utility diskette into the diskette drive; then turn on the computer. 9 select update personalization data; then follow the instructions on the screen. Your data will be sto...

  • Page 146: Using Locks

    Protecting your computer and internal devices using locks note: you are responsible for the evaluation, selection, and implementation of the locking devices and security features. Ibm makes no comments, judgments or warranties about the functions, quality or performance regarding locking devices and...

  • Page 147

    Protecting your computer and internal devices using the security lock to prevent your computer from being removed without permission, purchase a kensington lock or a compatible lock and attach it to the keyhole on the side of the computer; then secure the chain on the lock to a stationary object. Th...

  • Page 148

    Protecting your computer and internal devices using the pc card lock to prevent the pc cards from being removed from the pcmcia slots, do the following. Warning: make sure the locking lever for the hard disk drive is unlocked. 1 open the keyboard and insert the pc card lock 1 as shown. To lock the k...

  • Page 149

    Chapter 6. Installing and removing options this chapter provides information about how to install or remove external or internal devices and ibm options. Installing and removing pc cards . . . . . . . . . . . . . . . . . 134 inserting the pc card . . . . . . . . . . . . . . . . . . . . . . . 134 rem...

  • Page 150

    Installing and removing pc cards installing and removing pc cards this section explains how to install and remove a pc card. For information about operating the computer with pc cards, refer to “using pc cards” on page 61. Warning: do not insert ic dram cards into the pcmcia slots. Note: when instal...

  • Page 151

    Installing and removing pc cards 2 insert the pc card into an appropriate slot according to your pc card type: if you are using a type i or type ii pc card, insert it into either the upper slot 1 or the lower slot 2 as shown. Then press it firmly into the connector. If you want to use another pc car...

  • Page 152

    Installing and removing pc cards you have completed the installation of the pc card. Refer to the following sections: to use pc cards, see “using pc cards” on page 61. To use pc cards with power-saving functions, see: – “considerations for suspend mode” on page 55. – “considerations for hibernation ...

  • Page 153: Increasing Memory Capacity

    Increasing memory capacity increasing memory capacity increasing memory capacity is an effective way to make programs run faster. You can increase the amount of memory in your computer by installing either an ic dram card or memory modules (dimms). Because the computer has only one slot for a memory...

  • Page 154

    Increasing memory capacity installing an ic dram card and dimm 1 turn off the computer; then disconnect the ac adapter and all cables from the computer. Warning: make sure the locking lever for the hard disk drive is unlocked. 2 open the lcd; then open the keyboard. Warning: to avoid damage to the d...

  • Page 155

    Increasing memory capacity 6 place the adhesive strap 1 on the card as shown. This strap is used to remove the card. Warning: do not insert any pc card into the connector for the ic dram card. 7 insert the ic dram card as shown. Press the card firmly into the connector. 8 go to step 12 on page 142. ...

  • Page 156

    Increasing memory capacity note: be sure to save the base plate for future use. 9 pinch the levers 1 on the left side of the base plate 2 and pull the plate slightly toward the front; then raise the rear portion of the base plate and remove it. 1 2 2 1 10 insert the dimm adapter 1 into the connector...

  • Page 157

    Increasing memory capacity warning: to avoid damaging the dimm, do not touch its contact edge. 11 insert the dimm into either of the sockets on the dimm adapter. A) find the notch 1 on the side of the dimm. B) with the notched end of the dimm toward the right side of the socket 2 , insert the dimm, ...

  • Page 158

    Increasing memory capacity warning: the diskette drive is a very delicate device. Do not press on the middle of the diskette drive. Otherwise, the drive head could get damaged. 12 reinstall the diskette drive. Press on the shaded area 1 as shown until the drive snaps into the connector. 2 1 13 close...

  • Page 159

    Increasing memory capacity removing the ic dram card and dimm 1 turn off the computer; then disconnect the ac adapter and all cables from the computer. Warning: make sure the locking lever for the hard disk drive is unlocked. 2 open the lcd; then open the keyboard. Warning: to avoid damage to the di...

  • Page 160

    Increasing memory capacity 6 remove the ic dram card by pulling the adhesive strap 1 . 7 go to step 12 on page 147. 144 ibm thinkpad 755cx user's guide.

  • Page 161

    Increasing memory capacity warning: to avoid damaging the dimm, do not touch its contact edge. 8 press the locks on both edges of the socket at the same time and remove the dimm. 9 while holding the strap 1 , pull the dimm adapter 2 toward the front and remove it. 2 1 chapter 6. Installing and remov...

  • Page 162

    Increasing memory capacity note: the base plate should have been removed and stored when you installed the dimm adapter. 10 pinch the levers 1 on the left side of the base plate 2 and install it as shown. 1 2 2 1 11 push the base plate forward to click it into place. 146 ibm thinkpad 755cx user's gu...

  • Page 163

    Increasing memory capacity warning: the diskette drive is a very delicate device. Do not press on the middle of the diskette drive. Otherwise, the drive head could get damaged. 12 reinstall the diskette drive. Press on the shaded area 1 as shown until the drive snaps into the connector. 2 1 13 close...

  • Page 164

    Replacing the hard disk drive replacing the hard disk drive the capacity of the hard disk can be increased by replacing the original hard disk drive with an optional one. This option can be purchased through your ibm authorized reseller or ibm marketing representative. 1 turn off the computer; then ...

  • Page 165

    Replacing the hard disk drive 5 insert the replacement drive. Press on the shaded area 1 as shown until the drive snaps into the connector; then close the keyboard. 6 connect the ac adapter to the computer; then turn on the computer. You have completed the replacement of the hard disk drive. To inst...

  • Page 166

    Installing options in the diskette drive compartment installing options in the diskette drive compartment you might need to remove the option cover and the diskette drive bezel (on the front of the computer) when you install options in the diskette drive compartment. To remove the option cover and b...

  • Page 167

    Installing options in the diskette drive compartment 5 push the option cover from the bottom of the computer and remove it. 6 insert a coin between the diskette drive bezel and computer. Chapter 6. Installing and removing options 151.

  • Page 168

    Installing options in the diskette drive compartment 7 push the bezel from the bottom of the computer and remove it. 8 refer to the manual that came with the option to install it and its bezel in the compartment. 9 close the keyboard and reconnect all cables. 10 if the option in the diskette drive c...

  • Page 169

    Installing options in the diskette drive compartment reinstalling the option cover and front bezel to reinstall the option cover (on the side of the computer), do the following: 1 insert the upper portion of the option cover into the computer; then insert the lower portion. The following figure show...

  • Page 170

    Installing options in the diskette drive compartment to reinstall the diskette drive bezel (on the front of the computer), do the following: insert the lower portion of the diskette drive bezel into the computer; then insert the upper portion. Push the upper portion of the bezel down into the comput...

  • Page 171

    Installing the daa/telephony kit installing the daa/telephony kit note: in some countries, the mwave telephony functions are available after the daa/telephony kit option is installed. If the telephone plug on the left side of your computer is one with a square receptacle, the computer can be used fo...

  • Page 172

    Installing the daa/telephony kit 3 slide the latch 1 to the left-most position and release the dummy plug. 4 remove the dummy plug 2 from the computer. 156 ibm thinkpad 755cx user's guide.

  • Page 173

    Installing the daa/telephony kit 5 make sure the latch is at the left-most position; then install the new plug with the round receptacle and firmly press it into the connector. Warning: do not leave the lever in its middle position. Otherwise, you cannot close the keyboard. 6 slide the lever to its ...

  • Page 174

    Installing the daa/telephony kit 7 connect the cables: danger to avoid shock hazard, do not connect the telephone cable to or disconnect it from the computer during electrical storms. Note: both ends of the daa interface cable are identical. A) connect one end of the daa interface cable 1 to the con...

  • Page 175

    Attaching an external numeric keypad or a mouse attaching an external numeric keypad or a mouse warning: when you connect a mouse other than ibm ps/2 miniature mouse, turn off the computer. An external numeric keypad or a mouse can be attached directly to the connector on the right side of the compu...

  • Page 176

    Attaching an external numeric keypad or a mouse using the mouse and other pointing devices note: the appropriate software must have been loaded already. A serial mouse connected to the serial port, or a device, that is not compatible with the ps/2 mouse, can be connected to the external input-device...

  • Page 177

    Attaching an external numeric keypad or a mouse using a mouse on the ibm thinkpad space saver keyboard you can use the ibm thinkpad space saver keyboard instead of the keyboard of your computer. When you connect a mouse to the space saver keyboard, you must disable the trackpoint iii of your compute...

  • Page 178

    Attaching an external numeric keypad or a mouse using the device driver on the utility diskette os/2 win dos when you use the space saver keyboard, the device driver of the utility diskette automatically disables or enables the trackpoint iii of the computer when computer power is turned on. To inst...

  • Page 179

    Attaching an external keyboard attaching an external keyboard you can connect an external keyboard to your computer through the keyboard/mouse connector (separately available as an option). Note: the computer enters suspend mode when the lcd is closed. If you want to use the computer with the lcd cl...

  • Page 180: Attaching A Printer

    Attaching a printer attaching a printer most parallel printers with the standard centronics ** interface can be attached to the 25-pin parallel connector ( ) at the rear of the computer. 1 turn off the computer and attach the printer as shown. 2 3 1 2 turn on the computer and the printer. 164 ibm th...

  • Page 181

    Attaching and replacing an external display attaching an external display note: when installing an operating system, you must install the display driver before you can use the external display. The computer can display information on the lcd as follows: 755cx svga model supports svga (800-by-600 res...

  • Page 182

    Attaching and replacing an external display changing the display mode you can display information on the lcd, the external display, or both by using the following commands. Os/2 win dos using the fn key function: press and hold the fn key; then press the f7 key. The output is displayed sequentially ...

  • Page 183

    Attaching and replacing an external display setting the monitor type and the display driver before attaching the external display to your computer, set the appropriate monitor type and device driver type as follows: os/2 win 1 start the thinkpad features program. 2 select the display icon. First, ch...

  • Page 184

    Attaching and replacing an external display hints and tips when you are using windows, the virtual screen function is available. It is used 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 with the trackpoint iii or ...

  • Page 185

    Attaching and replacing an external display connecting the external display to the computer warning: do not disconnect the external display while the computer is in suspend mode or hibernation mode. If no external display is attached when the computer resumes, the lcd will remain blank and the outpu...

  • Page 186

    Attaching and replacing an external display changing the screen resolution or color depth to change the screen resolution or color depth of the external display, do the following: os/2 win for os/2 warp: 1 open the os/2 system folder. 2 double-click on the system setup icon; then click on the system...

  • Page 187

    Attaching and replacing an external display using svga display drivers the computer can display information on the attached svga display according to your operating system: for os/2 v.2.11: for windows: color resolution 256 colors 640 by 480 800 by 600 1024 by 768 color resolution 256 colors or 64 g...

  • Page 188

    Attaching the ibm dock i or dock ii attaching the ibm dock i or dock ii warning: do not use the utility diskette that came with the ibm dock ii. To expand the ability of the computer, you can use an ibm thinkpad dock i or dock ii expansion unit. Either unit offers you a portable multimedia environme...

  • Page 189

    Chapter 7. Installing software this chapter provides information about the software installed in the computer. It also describes how to install the necessary device drivers when you are reinstalling the operating system or if the operating system was not preinstalled at the time of purchase. What yo...

  • Page 190

    Software considerations what you need for your computer the operating systems supported by the computer are: ibm dos version 7.0 or later ibm dos version j6.3/v or later ibm operating system/2 (os/2) warp version 3.0 ibm operating system/2 (os/2) version 2.11 microsoft windows version 3.11 or later ...

  • Page 191

    Software considerations the following figure shows what must be installed for each operating system before you begin computer operation: page numbers: for os/2: 1 page 176. 2 page 180. 3 page 185. 4 page 192. 5 page 196. 6 page 189. 7 page 189. For dos: 8 page 176. 9 page 181. 1 page 186. 11 page 19...

  • Page 192

    Installing the operating system installing the operating system refer to the appropriate section in the following to install your operating system. Os/2 ibm os/2 warp or version 2.11 follow the instructions in the operating-system documentation. After os/2 warp has been successfully installed, go to...

  • Page 193

    Installing the operating system win microsoft windows version 3.11 or later windows operates in a dos environment. Install dos version 7.0 or later (see the dos documentation); then install the thinkpad features program for dos (see page 181) before you install windows. Do the following to install w...

  • Page 194

    Installing the operating system note: verify that computer has changed to ms-dos system with apm. If the item has not changed, return to step 1d. Windows setup =============== setup has determined that your system includes the following hardware and software components. If your computer or network a...

  • Page 195

    Installing the operating system 3 when you have completed the installation of windows version 3.11, edit the autoexec.Bat file so that the computer will use the correct mouse driver. When windows version 3.11 is installed, the computer might be automatically configured to use the mouse driver (mouse...

  • Page 196

    Installing the thinkpad features program installing the thinkpad features program when installing an operating system, you must install the thinkpad features program that is on the utility diskette to set up the programs used with your computer. Follow the instructions for your operating system. For...

  • Page 197

    Installing the thinkpad features program dos installing for dos to install the thinkpad features program for dos, do the following: 1 turn on the computer and start the operating system. 2 insert the utility diskette into the diskette drive; then type a:uinstall at the dos prompt and press enter. Th...

  • Page 198

    Installing the thinkpad features program win installing for windows if you are going to use windows, install the thinkpad features program for dos first (see page 181); then do the following to install the thinkpad features program for windows. 1 turn on the computer and start windows. 2 select file...

  • Page 199

    Installing the pcmcia device driver installing the pcmcia device driver note: do not install the phoenix** pcmcia support for ibm dos 7.0. Pc card director for windows runs only in enhanced mode of windows 3.11 or later. When installing an operating system, you must install the following device driv...

  • Page 200

    Installing the pcmcia device driver for ibm dos version 7.0 or later: only for dos. Only for windows. Software file name how to install card services ibmdoscs.Sys installed with the pcmcia device driver. (see “installing the pcmcia device driver” on page 183 for installation.) socket services ibmdss...

  • Page 201

    Installing the pcmcia device driver os/2 installing for os/2 to install the pcmcia device driver for os/2, do the following: 1 turn on the computer and start the operating system. 2 insert the pcmcia features diskette into the diskette drive. 3 open the os/2 full screen command prompt; then type a:p...

  • Page 202

    Installing the pcmcia device driver dos installing for dos to install the pcmcia device driver for dos, do the following: 1 turn on the computer and start the operating system; then insert the pcmcia features diskette into the diskette drive. 2 at the command prompt, type a:uinstall and press enter....

  • Page 203

    Installing the pcmcia device driver win installing for windows to install the pcmcia device driver for windows, do the following: 1 turn on the computer and start the operating system. 2 select file from the program manager window; then select run... From the pull-down menu. Options windows help pro...

  • Page 204

    Installing the thinkpad display driver installing the thinkpad display driver the display driver provides a high-resolution mode for an attached svga display. Note: for more information of the display driver, see “attaching an external display” on page 165. The display driver also increases the perf...

  • Page 205

    Installing the thinkpad display driver os/2 installing for os/2 warp refer to the documentation that came with the display driver diskette for os/2 warp. Select the wd90c24 display driver when installing the display driver. Os/2 installing for os/2 v.2.11 you must do the following before you install...

  • Page 206

    Installing the thinkpad display driver note: to shut down os/2: 1. Move the mouse pointer to a blank part of your os/2 desktop. 2. Press the right button of your trackpoint iii or mouse. 3. Select shut down. 5 remove the diskette from the diskette drive and shut down os/2; then restart the system. 6...

  • Page 207

    Installing the thinkpad display driver win installing for windows if you did not install the display driver when windows was installed (by following the procedures on page 177), install the display driver for windows: 1 exit windows and go to the dos prompt if windows is running. 2 go to the windows...

  • Page 208

    Installing the mwave support software installing the mwave support software note: if you have multiple operating systems, you might need to install multiple versions of the mwave support software. For example, to enable dos and windows applications for mwave functions, two separate mwave support sof...

  • Page 209

    Installing the mwave support software note: to shut down os/2: 1. Move the mouse pointer to a blank part of your os/2 desktop. 2. Press the right button of your trackpoint iii or mouse. 3. Select shut down. 6 restart os/2 to make the mwave features effective. 7 install mwave mmpm audio support softw...

  • Page 210

    Installing the mwave support software dos installing for dos to install the mwave support software for dos, do the following: 1 turn on the computer. 2 insert the mwave dsp features diskette 1 for dos into the diskette drive. 3 at the command prompt, type a:install; then press enter. The following s...

  • Page 211

    Installing the mwave support software win installing for windows warning: before you install the mwave support software, close all open applications. To install the mwave support software for windows, do the following: 1 turn on the computer; then start windows. 2 select file from the program manage...

  • Page 212

    Installing the infrared device driver installing the infrared device driver when installing an operating system, you must install the ir (infrared) device drivers. Follow the instructions for your operating system. For os/2, see “installing for os/2.” for windows, see “installing for windows” on pag...

  • Page 213

    Installing the infrared device driver win installing for windows 1 turn on the computer; then go to the dos command prompt. 2 insert the infrared features diskette into the diskette drive. 3 type a:uinstall; then press enter. The following screen appears: type the source drive leter (a-z). When you ...

  • Page 214

    Installing the infrared device driver 198 ibm thinkpad 755cx user's guide.

  • Page 215

    Chapter 8. Solving computer problems computer problems can be caused by software, hardware, or both. Many problems can be diagnosed and solved with the assistance of self-tests and system programs. If a hardware problem is detected by the self-tests, an error message is displayed. The system program...

  • Page 216

    What if your computer does not work? Commonly asked problems and actions this section provides a list of possible common problems that you might have with their corresponding actions. P: a memory shortage or memory error occurs. A: do one of the following: unload any unnecessary drivers from the con...

  • Page 217

    What if your computer does not work? P: the pc card modem does not work. A: do the following: 1. Start the pc card director and check the serial port name (com1–com4) assigned to the modem card. 2. Open your pc card application; then assign the serial port name for the modem. P: the battery pack los...

  • Page 218: Testing The Computer

    What if your computer does not work? Testing the computer 1 turn on the computer. The power-on self-test (post) runs automatically. If the test ends without detecting an error, one of the following occurs: the operating system or application screen appears. A password prompt appears on the screen, i...

  • Page 219

    What if your computer does not work? Hdd-2 systemboard memory display hdd-1 fdd-1 pcmcia-2 parallel pcmcia-1 fdd-2 cd-rom serial dsp restart start 1 1 1 2 2 2 if the computer did not beep, the speaker is not working correctly. Have the computer serviced. If you are not sure about the beep, turn off ...

  • Page 220: Troubleshooting Charts

    What if your computer does not work? Troubleshooting charts in the charts, x can be any character. Lcd problems problem action the screen is blank and there are no beeps. Note: if you are not sure about the beeps, turn the computer off; then turn it on again, and listen for the beep. Verify that: th...

  • Page 221

    What if your computer does not work? Problem action the screen image appears smaller than the lcd size (using a dos application on a 755cx svga model only). This is to maintain compatibility with the dos application; it is not a problem. When you use dos shell or some kind of application in the dos ...

  • Page 222

    What if your computer does not work? Screen messages message action diskette and f1 prompts. F2 f10 f1 verify that hard disk drive is correctly installed. Or, verify that the self-starting diskette is inserted correctly (with the label up and metal-shutter end first) in the diskette drive. If so, pr...

  • Page 223

    What if your computer does not work? Message action post error prompt. An error was found during the post. Press enter; then select start from the test menu to run the test. If the test ends with an error, make a note of the error code and have the computer serviced. Error prompt. Turn off the compu...

  • Page 224

    What if your computer does not work? Error codes screen message action i 9990301 i 9990302 i 9990305 note: incorrect connection of the hard disk drive can cause these error codes to appear. The computer cannot find the startup drive. Action: 1. Turn off the computer. 2. Press and hold f1; then turn ...

  • Page 225

    What if your computer does not work? Screen message action 184 the entered password is invalid. Turn off the computer and wait at least 5 seconds; then turn it on again and type the correct password. 190 the computer has turned off because of a critically low-battery condition. Action: connect the a...

  • Page 226

    What if your computer does not work? General problems problem cause or action the computer performance is getting worse in an environment where the temperature is higher than the product specifications. (see “specifications” on page 251.) processor speed may decrease if the computer is used in a hig...

  • Page 227

    What if your computer does not work? What if testing cannot find the problem? If the test programs do not find the problem, use the following troubleshooting charts: battery power problems problem action the battery pack starts discharging automatically, even if the ac adapter is connected. When the...

  • Page 228

    What if your computer does not work? Problem action the battery pack cannot be fully charged in 3 hours by the power-off charging method. The battery pack is over-discharged. Action: 1. Turn off the computer. 2. Make sure that the over-discharged battery pack is in the computer. 3. Connect the ac ad...

  • Page 229

    What if your computer does not work? Diskette drive problems mwave dsp feature problems problem action the diskette drive in use indicator stays on. If there is a diskette in the drive, verify that: – there is nothing wrong with the diskette. Try a backup copy if you have one. – the diskette is inse...

  • Page 230

    What if your computer does not work? Infrared communication problems problem cause and action other problems. The following is a list of failures that can cause other problems. A compatibility problem exists between the mwave feature and one or more other adapters in the system. To isolate a compati...

  • Page 231

    What if your computer does not work? Software problems option problems problem action an application program does not work correctly. To determine if a problem is caused by the software, verify that: your computer has the minimum memory required to use the software. Refer to the manuals supplied wit...

  • Page 232

    What if your computer does not work? Keyboard, external numeric keypad, and pointing device problems problem action the pc card does not work. Verify that: the serial addresses for the serial devices (serial port a, serial port b, infrared ports, and mwave telephony function) do not conflict with ea...

  • Page 233

    What if your computer does not work? Problem action the mouse or pointing device does not work. Verify that the mouse or pointing-device cable is securely connected to the computer. Try using the trackpoint iii. If the trackpoint iii works, suspect the externally attached pointing device. If you are...

  • Page 234

    What if your computer does not work? External display problems problem action the screen is blank. Verify that: the power cord for the external display is plugged into a working electrical outlet and into the external display. The external display is turned on and the brightness and contrast control...

  • Page 235

    What if your computer does not work? Problem action when you use dos shell or some kind of application in the dos environment, the lines on the screen are disordered. (755cx svga model only) verify that: if you are using dos shell and set the screen mode 800-by-600 resolution by ps2 mode3x command, ...

  • Page 236

    What if your computer does not work? Printer problems intermittent problems problem action the printer does not work. Verify that: the printer is turned on and ready to print. The printer signal cable is connected to the correct connector on the computer. (for the location of the printer connector, ...

  • Page 237: Listing Installed Options

    Getting service listing installed options when getting service, you might need to know which options you have in your system. Check or write the names of your options below. Ic dram card (2mb, 4mb, 8mb, or 16mb) option in the diskette drive compartment dimm (4mb, 8mb, or 16mb) dimm adapter internal ...

  • Page 238

    Getting service recording identification numbers the following information is needed when obtaining repair services: the machine type and serial number 1 are located on the bottom of the computer. The machine type has a prefix of type. The serial number has a prefix of s/n. 1 ibm product name thinkp...

  • Page 239: Getting Service

    Getting service getting service if you need further assistance, call your ibm authorized reseller or ibm marketing representative. When requesting service, describe the error message or problem to the service representative. Error messages can help identify what service action is required and help t...

  • Page 240

    Getting service the ibm helpclub: another great choice (for european countries) yours for a free trial period. Helpware what's great about the helpclub † is that once you're a member you get helpware † . If you intend to use your new thinkpad at home or for business, helpware provides a complete ran...

  • Page 241

    Getting service join the helpclub! Call your country number below during office hours: austria 222 21145 7575 belgium 02/542.5360 denmark 45 93 45 45 lokal 4600 finland 9800-6100 france 16-38 55 20 39 germany 0231-9748-405 italy 1678 36019 luxembourg 02/542.5360 netherlands 020 513 4700 norway 66 99...

  • Page 242

    Getting service 226 ibm thinkpad 755cx user's guide.

  • Page 243

    Appendix a. Avoiding hardware conflicts when options such as the at adapter or application programs are installed, the system might not operate correctly because of conflicts in irq (interrupt level), i/o addresses, dma channel, and memory addresses. To avoid these conflicts, you must be aware of ha...

  • Page 244

    Avoiding hardware conflicts the following table summarizes the reserved system resources for the computer and the thinkpad dock i or dock ii. Values in parentheses are alternative values that are selectable in the thinkpad features program, easy-setup, or application programs. System resources irq m...

  • Page 245

    Avoiding hardware conflicts system resources irq memory address (hex) i/o address (hex) dma channel options in dock i or dock ii scsi controller 2, 3, 4, 5, 7, 9, 10, 11, 15 ca000–cbfff c8000–c9fff ce000–cffff de000–dffff (depends on the installed option device) 0, 1, 2, 3, 5, 6, 7 ad/vc adapter non...

  • Page 246

    Avoiding hardware conflicts 230 ibm thinkpad 755cx user's guide.

  • Page 247

    Appendix b. Advanced information for pc cards this appendix describes the auto configurator program, which automatically enables the pc card without the device driver supplied with your pc card being installed. It also explains some considerations you should be aware of when using your pc card. Auto...

  • Page 248

    Advanced information for pc cards example when a modem card is used when a modem card is installed in the pc card slot, the auto configurator assigns interrupt request levels and i/o window from the information in the following data file and tuple data of the modem card: [modem] cardid=modem,md24x p...

  • Page 249

    Advanced information for pc cards example of the memory area for the card services and 3270 notes: 1. The auto configurator for os/2 supports modem and data/fax modem pc cards. 2. The auto configurator for dos and windows supports modem, data/fax modem, and 3270 emulation pc cards. The following is ...

  • Page 250

    Advanced information for pc cards operational considerations for pcmcia consider the following according to your operating system: os/2 software considerations for os/2 the following is a sample of the config.Sys file for os/2: : basedev=pcmcia.Sys /p ← rule 1 basedev=icrmu 1.Sys ← rule 1 basedev=ib...

  • Page 251

    Advanced information for pc cards dos software considerations for dos keep in mind the following considerations when using pc cards: using a software ems with the pc card warning: when you update the emm386 parameter in the config.Sys file using ramsetup, set the same address range as the one specif...

  • Page 252

    Advanced information for pc cards note: the procedure assumes that you are using “ems386.Exe” as an ems device driver. The following example shows the procedure for memory allocation when an adapter that requires 32kb of memory is installed (the required-memory space of the adapter cards might vary ...

  • Page 253

    Advanced information for pc cards note: for more information, see chapter 5 of the dock i user's guide . This maximizes the memory address range that is allocated for the pc cards and scsi adapter in the dock i. This assumes the dock i scsi adapter is at the default allocation (x ' ca000 ' —x ' cbff...

  • Page 254

    Advanced information for pc cards for the preceding example, the memory map will be as follows: c000:0 c300:0 c400:0 c800:0 cc00:0 ce00:0 d000:0 e000:0 3270 shared ram ems memory ibm card service s token-ring shared ram ems memory token-ring memory mapped i/o ethernet shared ram dos updating the con...

  • Page 255

    Advanced information for pc cards rule 1 for you to use the software ems driver (emm386.Exe) with the pcmcia drivers, the “x=” parameter must be specified for emm386.Exe. This parameter specifies the memory range that is used by the pcmcia drivers. (for more information see “using a software ems wit...

  • Page 256

    Advanced information for pc cards dos releasing the pcmcia memory area note: these procedures do not apply to the device drivers supplied with your pc card. If you are using dos 7.0 or later but not are using the pc card, you can use the pcmcia memory area as your application program memory area. Th...

  • Page 257

    Advanced information for pc cards note: see the sections in the dos user's guide about using the dos operating system and configuring your system using multiple configurations for more information about the dos multiple configuration function. Using the dos multiple configuration function: use the d...

  • Page 258

    Advanced information for pc cards win software considerations for windows if you are using windows, specify the memory area for windows so it does not conflict with the memory area for the pcmcia device drivers. After completing the installation for windows, update your system.Ini file as follows: 1...

  • Page 259: Audio Information

    Appendix c. Additional information for mwave dsp feature note: in some countries, the mwave telephony functions are available only after the daa/telephony kit option is installed. This appendix provides detailed information about the thinkpad mwave dsp features. Audio information this section provid...

  • Page 260

    Advanced information for audio function mwave midi overview mwave midi synthesizer overview the mwave audio features can be a music synthesizer, creating realistic instrument sounds from a sequence of midi commands. The midi standard defines a very compact representation for music. Midi is composed ...

  • Page 261

    Advanced information for audio function simultaneous voices (8 notes at once, each of which can come from a different instrument). An extended multitimbral synthesizer transmits data on midi channels 1–10 and supports 32 simultaneous voices. The mwave feature supplies the following midi mappers for ...

  • Page 262

    Advanced information for audio function pan the mwave feature's midi synthesizer uses qsound to implement pan. By using qsound, the position of each channel's instrument is not limited by the position of the speakers. It is received on control number 10. Vibrato also referred to as modulation, this ...

  • Page 263: Telephony Information

    Additional information for telephony function telephony information this section provides additional information about the thinkpad telephony features. United states telephone consumer protection act of 1991 (facsimile devices) the telephone consumer protection act of 1991 makes it unlawful for any ...

  • Page 264

    Additional information for telephony function 248 ibm thinkpad 755cx user's guide.

  • Page 265: Features

    Appendix d. Features and specifications this appendix describes features and specifications for the computer. For more information, refer to the technical reference manual. Features microprocessor intel ** pentium ** processor 75mhz 256kb external cache memory memory onboard (built-in): 8mb ram opti...

  • Page 266

    Features and specifications pcmcia slots (accept two type i or type ii pc cards, or one type iii pc card) headphone jack microphone/line-in jack (supports a dynamic microphone or a self-battery-powered condenser microphone) fax/modem port (in some countries, available as an option) infrared ports sy...

  • Page 267: Specifications

    Features and specifications specifications size width: 297 mm (11.7 in.) depth: 210 mm (8.3 in.) height: 49.8 mm (1.96 in.) weight minimum configuration with: lithium ion battery pack: approximately 2.75 kg (6.1 lb) nimh battery pack: approximately 2.9 kg (6.4 lb) environment note: when you charge t...

  • Page 268: Ibm Power Cords

    Features and specifications ibm power cords for your safety, ibm provides a power cord with a grounded attachment plug to use with this ibm product. To avoid electrical shock, always use the power cord and plug with a properly grounded outlet. Ibm power cords used in the united states and canada are...

  • Page 269

    Features and specifications ibm power cord part number used in these countries 25h2205 argentina, australia, new guinea, new zealand, papua, paraguay, uruguay 25h2207 bahamas, barbados, bermuda, bolivia, canada, cayman islands, colombia, costa rica, dominican republic, ecuador, el salvador, guatemal...

  • Page 270: Diskette Standards

    Features and specifications diskette standards to get the best performance from your diskette drives, use high-quality diskettes (such as ibm diskettes) that meet or exceed the following standards: 1mb, 3.5-inch, unformatted diskette: ansi (american national standards institute) x3.137 iso (internat...

  • Page 271

    Appendix e. Product warranties and notices statement of limited warranty the warranties provided by ibm in this statement of limited warranty apply only to machines you originally purchase for your use, and not for resale, from ibm or an ibm authorized reseller. The term “machine” means an ibm machi...

  • Page 272

    Warranties and notices when a type of service involves the exchange of a machine or part, the item ibm or your reseller replaces becomes its property and the replacement becomes yours. The replacement may not be new, but will be in good working order and at least functionally equivalent to the item ...

  • Page 273

    Warranties and notices this warranty gives you specific legal rights and you may also have other rights which vary from jurisdiction to jurisdiction. Appendix e. Product warranties and notices 257.

  • Page 274

    Warranties and notices statement of limited warranty the warranties provided by ibm in this statement of limited warranty apply only to machines you originally purchase for your use, and not for resale, from ibm or an ibm authorized reseller. The term “machine” means an ibm machine, its features, co...

  • Page 275

    Warranties and notices when a type of service involves the exchange of a machine or part, the item ibm or your reseller replaces becomes its property and the replacement becomes yours. The replacement may not be new, but will be in good working order and at least functionally equivalent to the item ...

  • Page 276

    Warranties and notices this warranty gives you specific legal rights and you may also have other rights which vary from jurisdiction to jurisdiction. 260 ibm thinkpad 755cx user's guide.

  • Page 277: Notices

    Warranties and notices notices references in this publication to ibm products, programs, or services do not imply that ibm intends to make these available in all countries in which ibm operates. Any reference to an ibm product, program, or service is not intended to state or imply that only that ibm...

  • Page 278

    Warranties and notices pentium intel corporation phoenix phoenix technologies, ltd. Prodigy prodigy services, inc. Qsound qsound, inc. Sharp sharp corporation sound blaster creative labs, inc. Ul underwriters laboratory western digital western digital corporation windows microsoft corporation wizard...

  • Page 279: Electronic Emission Notice

    Warranties and notices electronic emission notice federal communications commission (fcc) statement part 15 of the fcc rules note: this equipment has been tested and found to comply with the limits for a class b digital device, pursuant to part 15 of the fcc rules. These limits are designed to provi...

  • Page 280

    Warranties and notices (5.0). To be certain of the number of devices you may connect to your line, as determined by the ren, you should call your local telephone company to determine the maximum ren for your calling area. 4. If the built-in modem causes harm to the telephone network, the telephone c...

  • Page 281

    Warranties and notices installation and operating instructions addendum for united kingdom users users of the ibm thinkpad 755cx modem function in the united kingdom (u.K.) must pay close attention to the statements contained in this addendum. Modem connection 1. The modem is suitable for connection...

  • Page 282

    Warranties and notices approved usage the modem is approved only for use with the following facilities: storage of telephone numbers for retrieval by a predetermined code detection of initial proceed indication automatic calling tone detection modem operation in the absence of secondary proceed indi...

  • Page 283

    Warranties and notices storage of numbers 1. It is advisable to check the telephone numbers stored in your modem immediately after programming, and also after changing the battery in the cpu. 2. To prevent the misdirection of calls and network interference, ensure that all manually programmed teleph...

  • Page 284

    Warranties and notices repeat attempts: number of attempts and durations between attempts minimum duration between call attempts for call pattern call attempt a b c initial attempt 1st repeat attempt 5 seconds 5 seconds 5 seconds 2nd repeat attempt 1 minute 2 minutes 10 minutes 3rd repeat attempt 1 ...

  • Page 285: Glossary

    Glossary this glossary includes terms and definitions from the ibm dictionary of computing (new york: mcgraw-hill, 1994). Ac. Alternating current. Ac power. Power that is supplied to the computer through an electrical outlet. Ansi. American national standards institute. Application program. A progra...

  • Page 286

    Glossary directory. A type of file containing the names and controlling information for other files or other directories. Dma. Direct memory access. The transfer of data between memory and input/output units without processor intervention. Double-click. To press and release a mouse button twice with...

  • Page 287

    Input/output units; it transmits data 1 byte at a time. Partial suspend mode. A kind of suspend mode where only a part of the system components uses power. Password. A series of letters or numbers that you designate to restrict access to your computer. Pc card. A card that is based on the pcmcia sta...

  • Page 288

    272 ibm thinkpad 755cx user's guide.

  • Page 289: Index

    Index a ac adapter 18 cable, wrapping 19 connecting 8 voltage 18 answering machine 90 apm (advanced power management) 104 installing for windows 177 at bus 250 attaching dock i or ii 172 expansion unit 172 external display 165 external keyboard 163 external numeric keypad 159 mouse 159 printer 164 a...

  • Page 290

    Diskette drive (continued) bezel installing 154 removing 150 in use, indicator 16 installing other options 150 location 15 problems 213 removing 138 diskette standards 254 diskette-eject button location and function 15 display 27 device driver, installing 188 lcd switching to 48 problem 27 switching...

  • Page 291

    Hard-disk password (continued) setting 115 using 114 with power-on password 122 with supervisor password 122 wrong hard-disk password, entering 114 hardware conflicts 227 hardware specifications 251 headphone jack 5, 15 heat output, machine specifications 251 helpclub 224 helpware 224 hibernation fi...

  • Page 292

    Microprocessor (continued) machine specifications 249 speed 37 midi overview 244 support 75 modem 84 pc card installing 134 removing 136 problems 213 modem/fax port 5 installing 155 location and function 15 release latch location and function 15 mouse 5 attaching 159 using with space saver keyboard ...

  • Page 293

    Password (continued) easy-setup 44 hard-disk password changing 116 power-on password, using with 122 removing 117 setting 115 using 114 wrong, entering 114 personalization utility, using with 125 power-on password changing 112 hard-disk password, using with 122 removing 113 setting 111 using 110 wro...

  • Page 294

    Problems (continued) intermittent 220 keyboard 216 lcd 28, 204 messages on screen 206 modem 213 mwave dsp function 213 options 215 pointing device 216 printer 220 software 215 test cannot find problem 211 testing the computer 202 trackpoint iii 216 troubleshooting charts 204 processor see microproce...

  • Page 295

    Software (continued) ems, specifying 235 problems 215 sound blaster support 75 speaker (built-in) location and function speaker indicator 16 specifications battery pack 251 heat output 251 humidity, environment 251 input voltage 251 size 251 temperature, environment 251 weight 251 standards, diskett...

  • Page 296

    V video device driver see display driver video features diskette 3 virtual screen 38 volume control location and function 13 w warranties and notices, product 255 weight, machine specifications 251 windows version 3.11 or later installing 177 280 ibm thinkpad 755cx user's guide.