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Epson Equity LT-286e User Manual
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Epson Equity LT-286e User Manual

Epson Equity LT-286e User Manual

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  • Page 2 See page 2-15 in your User’s Guide for instructions. The Equity LT-286e comes with an empty plastic box in the slot for the hard disk drive. If your dealer has not already installed the hard disk drive in your computer, you must remove the empty box before you install the hard disk drive.
  • Page 3 ® EPSON E Q U l T Y - 2 8 6 e User’s Guide...
  • Page 4 D I S C L A I M E R O F W A R R A N T Y Epson America makes no representations or warranties, either express or implied, by or with respect to anything in this manual, and shall not be liable for any implied warranties of merchantability and fitness for a particular purpose or for any indirect, special, or consequential damages.
  • Page 5 Disconnect the peripheral devices and their input/output cables one at a time. If the interference stops, it is caused by either the peripheral device or its I/O cable. These devices usually require shielded I/O cables. For Epson peripheral devices, you can obtain the proper shielded cable from your dealer. For non-Epson peripheral devices, contact the manufacturer or dealer for assistance.

  • Page 7: Table Of Contents

    Chapter 2 Using the Equity LT-286e Using the AC Adapter .......
  • Page 8 Reverse video mode ......Special Keys on the Equity LT-286e Keyboard ... .
  • Page 9 Formatting Diskettes ....... . . Formatting a 1.44MB Diskette ..... Formatting a 720KB Diskette .
  • Page 10 Appendix A Switches and Slide Switches Setting the DIP Switches ......Accessing the Replacing the Expansion Card Cover .
  • Page 11 CI An internal, proprietary modem slot Cl A 2/3-size, IBM® PC AT™-compatible, 8/16-bit internal expansion slot Ci A high-capacity battery pack to power the LT-286e for up to 2 hours of operation Q Built-in interfaces for serial, parallel, video, external diskette drive, and external keyboard connectors Q An AC adapter and power cord.
  • Page 12 8 MHz speed. A slide switch allows you to change the speed. The Equity LT-286e also has a built-in socket for an 80C287 math coprocessor, which you can easily install or have installed by an authorized Epson dealer or Customer Care Center.
  • Page 13 Cl An additional AC adapter CL An adapter for an external, Epson keyboard CI Carrying case. Your Equity LT-286e comes with MS-DOS? version 4.01, by Microsoft? MS-DOS 4.01 provides a new Shell feature that lets you run programs and choose operating system commands from menus instead of the MS-DOS command prompt.

  • Page 14: Introduction

    How To Use This Manual This manual explains how to set up and care for your Equity LT-286e. It also describes how to use your computer and run diagnostic checks. The eight steps in Chapter 1 explain how to set up your computer and prepare it for use.

  • Page 15: Where To Get Help

    Epson is confident that this policy will provide you with the assistance you need. Call the Epson Consumer Information Center at...

  • Page 16: Setting Up Your System

    After you perform these steps, turn to Chapter 2 for information about using the computer. The LT-286e has two sets of switches that provide the computer with information about its configuration each time you turn it on. The switches are called DIP switches and slide switches.

  • Page 17: Unpacking

    Otherwise, you may damage some part of your equipment. Unpacking As you unpack the components, be sure to inspect each item. If anything is missing or damaged, consult your Epson dealer. Setting Up Your System...

  • Page 18: Installing The Hard Disk Drive

    MS-DOS Command Summary. You’ll also find a registration card with the main unit. Fill out this card now and mail it to Epson. With your registration card on file, Epson can send you update information. Please keep a copy of your sales receipt for warranty verification.
  • Page 19 Follow these steps to install the hard disk drive: 1. Unwrap the hard disk drive. 2. Face the front of the computer and hold the hard disk drive with the PUSH button on the left and the retractable tabs on the right. 3.
  • Page 20 4. Keep the hard disk drive level and lower it straight down into the hard disk drive slot. If you lower either side first, the connectors do not fit into the sockets. 5. Press firmly (but carefully) on the hard disk drive until it snaps into place.

  • Page 21: Connecting A Printer

    (ports). You can easily connect a printer or plotter that has either type of interface. Just follow the instructions below. Of course, Epson offers a full range of printer products; consult your Epson dealer for more information. Using the Parallel Interface The computer’s Centronics®-compatible parallel interface...
  • Page 22 3. Press down on the release tab to open the computer’s interface cover, as shown below. 4. One end of the printer cable has a 25-pin, D-shaped male connector. (See your printer manual if you cannot identify this connector.) Connect this end to the parallel connector labeled PRINTER on the right side of the computer, as shown below.
  • Page 23 6. Plug the printer’s power cable into an electrical outlet. The standard DIP switch settings for the LT-286e define your parallel port as the primary parallel port. If you think the DIP switch settings have been changed or you would like a different setting, see “Setting the DIP Switches”...

  • Page 24: Using The Serial Interface

    See your MS-DOS Reference Manual for instructions. The standard DIP switch settings for the LT-286e define your serial port as the primary serial port. If you think the DIP switch settings have been changed or you would like a different setting, see “Setting the DIP Switches”...

  • Page 25: Connecting The Ac Adapter

    Connecting the AC Adapter Follow these steps to connect the AC adapter: 1. Make sure the computer’s power switch (located on the right side of the computer) is turned off. 2. Turn the computer around so the back panel is facing you. Position the back panel slightly over the edge of the desk or table.
  • Page 26 4. Slide this box up into the slots on the connector on the back panel of the computer. Press the connector box up until it snaps into place. Be sure to read “Using the AC Adapter” in Chapter 2 for more information about the AC adapter.
  • Page 27 When you are not using the AC adapter, replace the safety cover that protects the connector. WARNING Do not connect or disconnect the AC adapter when the computer is turned on. Keep the AC adapter at least six inches away from your computer and disks.

  • Page 28: Connecting The Power Cord

    Connecting the Power Cord Follow these steps to connect the power cord: 1. Connect the power cord to the adapter’s input socket. 2. Plug the other end of the power cord into a grounded, 120-volt, AC wall outlet. 1-13 Setting Up Your System...

  • Page 29: Starting The System

    Starting the System After you complete steps 1 through 5, you’re ready to turn on the power and start using your Equity LT-286e computer. Read these safety rules first to avoid accidentally damaging your computer or injuring yourself: Cl Do not attempt to dismantle any part of the computer. If there is a hardware problem you cannot solve after reading Chapter 4 on troubleshooting, consult your Epson dealer.
  • Page 30 To turn on your computer, follow these steps: 1. Turn on any peripheral devices, such as a printer, an external diskette drive, or a color monitor. 2. Turn on the computer by pressing the power switch on the right side of the computer. Press the switch toward the back of the computer.

  • Page 31: Adjusting Screen Contrast And Brightness

    Adjusting Screen Contrast and Brightness If you cannot see text on the screen clearly, use the levers on the right side of the screen to adjust the screen’s contrast and brightness. The levers are shown below: The contrast lever on the right determines how bright the characters appear against the background.

  • Page 32: Running The Setup Program

    Running the SETUP Program When you turn on your computer for the first time, run the SETUP program to define how your computer is set up. This is a simple procedure that you must do at least once. You may need to do it again later if you want to change a setting.

  • Page 33: Starting The Setup Program

    Starting the SETUP Program After the self test completes, you see this prompt: Press <DEL> To start the SETUP program, follow these steps: Press Del. 2. You see this message and prompt: Want to run SETUP utility (Y/N)? Press Y Enter.
  • Page 34 5. The SETUP program now displays the type of display you are using and the current screen width. You cannot change these definitions; the computer automatically determines the type of display you are using based on your DIP switch settings. The first time you run SETUP, you must define the type of hard disk drive you have installed.
  • Page 35 The screen shows you these values to enter for diskette drives: ( 1 ) = 1 . 2 M B , 5 1/4" diskette 720 KB, (3) = 1.44 MB, Press 3 and Enter for drive A. 8. SETUP displays this prompt: Enter diskette drive B type (1-3)? .

  • Page 36: Inserting The Install Diskette

    If you need to make corrections to the settings, press N and Enter. SETUP returns to the date and time prompts, and you can make corrections to your selections. If the settings are correct, continue with step 8, “Inserting the Install Diskette.” When you run the SETUP program again, you are not asked to specify the hard disk drive types.
  • Page 37 2. Now press Y and Enter in response to the SETUP program prompt: Are these options The system reboots with the new setup information. You see the self test and the SETUP prompt. 3. This time ignore the SETUP prompt. The computer automatically loads the operating system and starts the MS-DOS installation program, which is called SELECT.

  • Page 38: Using The Equity Lt-286E

    This chapter describes some basic procedures for using your computer. Using the AC Adapter The Equity LT-286e can be powered by its external battery pack or by the AC adapter. When you connect the AC adapter to the computer and to an electrical outlet, the outlet supplies the power to the computer.

  • Page 39: Using The Battery

    AC adapter when the computer is turned on. Using the Battery The battery pack that comes with the Equity LT-286e contains NiCad (nickel cadmium) batteries that power the computer when the AC adapter is not connected. The battery pack is rechargeable.
  • Page 40 To increase the amount of time you can operate the LT-286e using the battery, follow these guidelines: Lower the brightness of the backlight to its lowest level.

  • Page 41: Connecting The Battery Pack

    4. Now give the battery a full, eight-hour charge. Connecting the Battery Pack Before you can use the LT-286e without the AC adapter, you must install the battery pack. Follow these steps: 1. Make sure the power switch on the computer is off.
  • Page 42 2. Disconnect the AC adapter. 3. Turn the computer around so the back is facing you. Make sure the back of the computer is slightly over the edge of the desk so you can slide the battery pack down. Using the Equity LT-286e...
  • Page 43 Slide the battery pack down and off the computer. Note When you are not using the battery pack, replace the safety cover that protects the metal connector. Using the Equity LT-286e...

  • Page 44: Status Indicator Bar

    EXT position. Displays the current CPU clock speed, either 8 MHz or 12 MHz. Indicates when you are using the battery pack; blinks when the battery pack charge is low. Indicates when you select an external CRT. Using the Equity LT-286e...
  • Page 45 The SCRL, NUM, and CAPS icons indicate whether the corresponding key functions are enabled. See “Special Keys on the Equity LT-286e Keyboard” later in this chapter. Using the Equity LT-286e Indicates when you can use the LCD display; blinks when the display is in standby mode.

  • Page 46: Opening And Closing The Screen

    To open the screen, press the latch release button in the center of the computer (shown below). Then lift the screen back. You can position the screen at a variety of viewing angles. Using the Equity LT-286e...

  • Page 47: Using The Handle

    Always turn off the computer before closing the screen. Using the Handle The Equity LT-286e has a convenient carrying handle. To use the handle, pull it out from the computer, as shown below. Be sure the screen is closed whenever you carry the computer by its handle.

  • Page 48: Selecting Execution Speed

    Selecting Execution Speed The Equity LT-286e can operate at two execution speeds: 8 MHz and 12 MHz. At the higher speed, the computer performs all tasks more quickly. You can select the slower speed to run application programs that have specific timing requirements and to prolong the battery’s charge.

  • Page 49: Defining Lcd Options

    You can change the value for the period of time the computer waits before darkening the screen using the SETLCD program. To specify a backlight period, type the following at the system prompt: SETLCD /xx 2-12 Using the Equity LT-286e...
  • Page 50 If you do not use the SETLCD program, the screen is always on. Using the Equity LT-286e 2-13...

  • Page 51: Lcd Adjustment Options

    LCD adjustment mode. In this mode, you can adjust the gray scale; just press S to see the different gray scale levels. Select the level that works best with the graphics being displayed. 2-14 Using the Equity LT-286e SETLCD...

  • Page 52: Reverse Video Mode

    Press Enter to exit this function. Special Keys on the Equity LT-286e Keyboard The illustration below shows the Equity LT-286e keyboard. Certain keys on your keyboard serve special functions when your computer is running application programs. For instructions on how to use keys for specific software functions, consult the manual that came with the program you’re running.
  • Page 53 Shift Shift + Prt Sc Scroll Lock Break Num Lock 2-16 Using the Equity LT-286e Purpose Perform special functions within application programs. Cancels the current command line or operation in some application programs. Moves the cursor one tab to the right in normal mode and one tab to the left in Shift mode.

  • Page 54: Using Diskettes

    Using Diskettes Use diskette drives to store data on diskettes and retrieve and use stored data. The Equity LT-286e has a 1.44MB, 3 l/z-inch diskette drive; it also supports an optional, external 1.2MB, 5 ‘/+inch diskette drive. This section explains how diskettes...

  • Page 55: How Diskettes Work

    If you are planning to exchange data with a computer that has a 720KB diskette drive, use 720KB diskettes in your Equity LT-286e. If you have an external, 5 ‘/.+-inch, 1.2MB (high-capacity) diskette drive, use 5 l/+-inch, double-sided, high-density diskettes in this drive.

  • Page 56: Caring For Diskettes

    0 Remove all diskettes before you turn off the computer. Cl Keep diskettes away from dust and dirt. Small particles of dust or dirt can scratch the magnetic surface and destroy data. Dust can also ruin the read/write heads in a diskette drive. Using the Equity LT-286e 2-19...
  • Page 57 3 l/z-inch diskettes. Always keep 5 ‘/+inch diskettes in their protective envelopes when you are not using them. 2-20 Using the Equity LT-286e...

  • Page 58: Inserting And Removing Diskettes

    Never remove a diskette or turn off the computer while the diskette drive icon is on. This might cause loss of data. Also, be sure to remove all diskettes before you turn off the computer. Using the Equity LT-286e 2-21...

  • Page 59: Making Backup Copies

    To write-protect the diskette, slide the switch down toward the edge of the diskette to expose a small opening. Using the Equity LT-286e 2-22 - w r i t e - p r o t e c t...

  • Page 60: Using The Hard Disk Drive

    Q Never turn off the computer’s power or remove the hard disk when the hard disk icon is on. This icon indicates that the computer is currently copying data to or from the hard disk. If you interrupt this process, you may lose data. Using he Equity LT-286e 2-23...

  • Page 61: Protecting The Data On Your Hard Disk

    Use the Epson MENU utility or the MS-DOS BACKUP command to back up your hard disk files. Use the MENU utility or the MS-DOS DISKCOPY command to make copies of your system and program diskettes.

  • Page 62: Turning Off The Hard Disk

    MS-DOS executes every time you boot your system from the hard disk. These instructions do the following: Q Tell MS-DOS where to find its essential system files Cl Allow you to define certain system parameters /ALL Using the Equity LT-286e 2-25...
  • Page 63 Use any time period you want (between 1 and 18). 4. Press F6 and then Enter. Using the Equity LT-286e 2-26 and press Enter. /5 and press Enter. This turns off...

  • Page 64: Resetting The Computer

    If this does not correct the problem, try the third method. 3. Turn off any peripheral devices and then turn off the LT-286e. Wait five seconds and then switch the power back on. Using the Equity LT-286e...

  • Page 65: Turning Off The Computer

    Before you turn off your computer, save your data, exit the program you are using, and then remove all diskettes from the disk drives. First turn off any peripherals, such as a printer, a monitor, or an external diskette drive. Then turn off the computer. 2-28 Using the Equity LT-286e...

  • Page 66: Using Ms-Dos With Your Computer

    C h a p t e r 3 Using MS-DOS With Your Computer Your Equity LT-286e comes with version 4.01 of MS-DOS. MS-DOS manages the routine work of your computer system, such as keeping the computer’s memory organized, controlling the screen display, accepting keyboard input, and directing external communications.

  • Page 67: Starting And Exiting Ms-Dos

    LI Using the MS-DOS Shell program CI Using the Epson HELP utility CI Using the Epson MENU utility 0 Using an AUTOEXEC.BAT file Ki Starting an application program The information presented in this chapter assumes you are running MS-DOS from the MS-DOS command prompt, not from the MS-DOS Shell program.
  • Page 68 prompt that appears when you load MS-DOS from the C> hard disk tells you that drive C, your hard disk, is the current drive (also called the default drive). The current drive is the one that MS-DOS uses for all commands unless you specify a different drive.

  • Page 69: The Ms-Dos Command Format

    The MS-DOS Command Format To enter an MS-DOS command, you need to type the command in the correct format. The MS-DOS command format consists of the command name, parameters, and delimiters. The command name tells MS-DOS the task you want to perform.

  • Page 70: Entering Ms-Dos Commands

    Entering MS-DOS Commands You can enter an MS-DOS command when you see the MS-DOS command prompt. Type the command name and any necessary parameters and delimiters, and then press Enter to execute the command. You can type command names in either uppercase or lowercase letters.

  • Page 71: Using Directories

    The name can be up to eight characters in length. It is a good idea to choose a name that describes the contents of the file. You can use any characters except blank spaces and the following symbols: * \ / [ ] : | < > + = ; . ? The extension is optional and can be up to three characters long.
  • Page 72 When you format your hard disk, MS-DOS creates a single directory for the disk. This directory is called the root directory. Because the hard disk has room for hundreds of files, MS-DOS allows you to create additional directories, called subdirectories. Subdirectories allow you to organize your hard disk to keep files of similar type or purpose together.

  • Page 73: The Current Directory

    On your own hard disk, you can create a subdirectory structure that is more complex than this one. Or you may prefer to keep things simple. Organize your disk to suit your own needs; you can modify the structure as your needs change. When creating subdirectories, note the following points: CI Any directory can have any number of subdirectories (except the root directory, which is limited in the number...

  • Page 74: Listing The Contents Of A Directory

    Q Changing directories Ll Copying from one directory to another c3 Deleting a directory. You may also want to read about Shell, an MS-DOS program that makes it easier to perform these functions, as well as others. You can use Shell to generate a visual diagram of your subdirectory structure, to move quickly between directories, to add and remove directories, and so on.

  • Page 75: Using Pathnames

    To list the files in a different directory on the current drive, type the pathname of that directory. For example, to list the contents of the LEDGER subdirectory while logged onto drive C, type DIR \LEDGER are described below.) Using Pathnames Whenever you want to access a file that is not in the current directory, you must specify the file’s pathname.

  • Page 76: Creating Directories

    Because this pathname does not begin with a backslash, MS-DOS starts in the current directory (PERSONAL), moves to the subdirectory LETTERS, then finds the file APRIL.TXT. If you did begin with the backslash, MS-DOS would not find the file, because it is located in a subdirectory of PERSONAL, not of the root directory.

  • Page 77: Changing Directories

    The screen displays a list of files in the root directory, along with the names of any subdirectories of the root directory: LEDGER WORDPROC COMMAND CONFIG AUTOEXEC File(s) 18625536 bytes free The list identifies the subdirectories by the letters <DIR>. Changing Directories You can use any directory as your current or working directory.

  • Page 78: Copying From One Directory To Another

    To change from any directory to its parent directory (the directory of which it is a subdirectory), type the following and press Enter: CD . . The two periods represent the parent directory. To return to the root directory from any subdirectory, type the following and press Enter: CD \ Copying From One Directory to Another...

  • Page 79: Deleting A Directory

    Deleting a Directory If you no longer need a directory, you can remove it with the RMDIR command (which can be abbreviated RD). Before removing a directory, you must delete any files it contains or move them to a different directory. You can only delete a directory that is empty.

  • Page 80: Formatting A 1.44Mb Diskette

    Formatting a 1.44 MB Diskette To format a 1.44MB diskette, follow these steps: 1. If necessary, log onto drive C. If you are not in the directory containing the file FORMAT.COM, change to that directory. For example, if FORMAT.COM is stored in a subdirectory named DOS, type CD 2.

  • Page 81: Formatting A 720Kb Diskette

    At this point, you can format another diskette by pressing Y and Enter, or return to the MS-DOS command prompt by pressing N and Enter. Formatting a 720KB Diskette To format a 720KB diskette in a 1.44MB drive, follow these steps: 1.

  • Page 82: Copying Data

    4. Enter up to 11 characters for the volume label to be stored on the diskette and press Enter. FORMAT displays these messages: 730112 bytes 730112 bytes available on disk 1024 bytes in each allocation unit 713 allocation units available on disk Volume Serial Number is 1C55-14C6 Format another (Y/N)? At this point, you can format another diskette by pressing Y...

  • Page 83: Using Diskcopy

    Note The MENU utility makes it easy to perform these functions. See the section on MENU later in this chapter. use the MS-DOS XCOPY command subdirectories of files. Using DISKCOPY The DISKCOPY command lets you copy an exact image of one diskette onto another diskette as long as the two diskettes are the same size and type.
  • Page 84 4. Insert the diskette you want to copy from (your source diskette) in the diskette drive and press any key. DISKCOPY copies the contents of the diskette to the computer’s memory. When memory is full, the screen displays this message: Insert TARGET diskette in drive A: Press any key to continue .

  • Page 85: Using Copy

    Using COPY The COPY command lets you copy files in several ways: CI Copy individual files from a diskette or the hard disk to another diskette or hard disk LI Copy a group of files using wildcard characters (wildcard characters are explained below) Ll Copy one or more files and give them new names D Combine or merge files into one file.
  • Page 86 If you want to copy this file from the diskette in drive A to the hard disk but want to change the name of the copy from REPORT to FACTS, type this command and press Enter: COPY A:REPORT C:FACTS To make a copy of this file on the diskette in drive A and assign the name FACTS to the copy, type the following and press Enter: COPY A:REPORT A:FACTS...

  • Page 87: Using Backup

    To copy all files on the diskette in drive A to the current directory on the hard disk, type the following and press Enter: COPY A:*.* C: To copy all files with names that begin with the four letters MEMO and end with any single character, type the following and press Enter: COPY A:MEMO? C: You can also use the COPY command to combine a number of...
  • Page 88 Cl The BACKUP command can perform incremental backups. That is, you can copy only those files that changed since the last time you used the BACKUP command. This also results in more efficient diskette use. Ci The BACKUP command can format new diskettes as it copies files.

  • Page 89: Deleting Data

    Deleting Data To delete a file, type extension, if any) of the file you wish to delete. For example, to delete the file named APRIL.TXT from the current directory, type the following and press Enter: DEL APRIL.TXT You can delete all files in the current directory at once by typing the following and pressing Enter: DEL *.* For your protection, when you type...

  • Page 90: Using Help

    Using HELP The Epson HELP utility provides on-line information about the MS-DOS commands and programs. You can use HELP in either of two ways: Ll To display the HELP menu, type prompt and press Enter Cl To bypass the menu, type HELP plus the name of the command you want information about.
  • Page 91 To bypass the HELP menu and display information about a specific command, follow these steps: 1. At the command prompt, type MS-DOS command you want information about. Then press Enter. For example, to see information about the COPY command, type the following and press Enter: HELP COPY 2.

  • Page 92: Using Menu

    Using MENU Your Equity LT-286e comes with an Epson utility called MENU. This program gives you access to several utilities that perform the functions of some of the most commonly used MS-DOS commands. MENU lets you execute several commands without having to remember the exact format for each one.

  • Page 93: Menu Utility Options

    Because you can perform so many tasks from the Mode Settings submenus, this option is a powerful alternative to the MS-DOS MODE command. Lets you access the Epson HELP utility. Lets you run other MS- DOS commands without leaving the MENU program.

  • Page 94: Using An Autoexec.bat File

    Using an AUTOEXEC.BAT File You may find that there are some commands you need to run every time you turn on your computer. To run a command or a series of commands automatically upon startup, you can type the commands into a special file called AUTOEXEC.BAT.

  • Page 95: Creating An Autoexec.bat File

    Creating an AUTOEXEC.BAT File You can create an AUTOEXEC.BAT file with any program that lets you store a text-only file (also called an ASCII text file). If your word processing program can save a file as a text-only file, you can use that program to create an AUTOEXEC.BAT file. Just be sure to name the file AUTOEXEC.BAT and store it in the root directory of the hard disk.

  • Page 96: Starting An Application Program

    Starting an Application Program Any time you see the MS-DOS command prompt (for example, you can start using an application program. Just log A> C>), onto the drive and directory containing your application program files (if necessary) and type the name of the program’s executable file.

  • Page 97: Chapter 4 Troubleshooting

    If the suggestions in this chapter do not solve the problem, contact your Epson dealer. Your dealer may be able to solve the problem; if not, he or she can refer you to an authorized Epson Customer Care Center. If necessary, call the Epson Consumer Information number (1-800-922-891 1) for the location of your nearest authorized Epson Customer Care Center.

  • Page 98: The Lcd Screen Is Blank

    Plug a lamp into the outlet and turn it on to see if the outlet supplies power. 4. If your computer still won’t start, contact your Epson dealer. The LCD Screen Is Blank If the computer starts but no image appears on the LCD screen, follow these steps to solve the problem: 1.

  • Page 99: The Monitor Screen Is Blank

    Then check the electrical outlet for power. Plug a portable lamp into outlet supplies power. If an image still does not appear on your color monitor, contact your Epson dealer. and turn it on to see if the the outlet Troubleshooting 4-3...

  • Page 100: The Computer Locks Up

    The Computer Locks Up If the computer does not respond to your keyboard entries, try the following: 1. Wait a few seconds. Some operations take longer than others to perform. For example, a spreadsheet program takes longer to recalculate an entire spreadsheet than to record one figure.

  • Page 101: Hard Disk Problems

    See the instructions for setting up the hard disk in your MS-DOS Installation Guide. If the hard disk still does not work, contact your Epson dealer or have an authorized Epson Customer Care Center check your hard disk.

  • Page 102: Setting The Dip Switches

    The computer uses this information each time you turn it on. If you are using the standard LT-286e settings, that is, you are using the LCD screen in EGA mode, a parallel printer, and operating at 12 MHz, you do not need to change the DIP switches or slide switches.

  • Page 103: Accessing The Dip Switches

    Before accessing the DIP switches, make sure the power switch is off and all cables, including the AC adapter, are disconnected. Accessing the DIP Switches To locate the DIP switches, follow these steps: 1. Remove the expansion slot cover on the left side of the computer.
  • Page 104 4. Remove the expansion card cover as shown below. Lift up on the two tabs while you press on the grated squares to release the cover. Slide the cover away from you (toward the handle). The DIP switches are located on the right side of the computer. DIP Switches and Slide Switches...
  • Page 105 Because the computer is upside down, the DIP switches numbers are upside down and the ON/OFF orientation is reversed. Take care when changing a DIP switch setting that you are changing the correct switch. The following tables list the system functions these switches control.
  • Page 106 Switch Setting Function Selects default EGA configuration Selects EGA configuration; see the CRT/LCD switch settings Selects EGA configuration; see the CRT/LCD switch settings Selects default EGA configuration O F F *Default setting DIP switch settings (SW2) Switch Setting Function Not used; must be ON Selects internal diskette drive as drive A;...
  • Page 107 DIP switch settings for video controller (SW1) CRT/LCD Configuration Selects MDA (monochrome display adapter) to use monochrome display (CRT only) Selects CGA (color graphics adapter) to use color or enhanced color display; 40 characters x 25 lines Selects CGA to use color or enhanced color display;...
  • Page 108 Switch Set this switch to ON for the expanded LCD mode; in this mode, the LT-286e displays larger characters to fill the screen. Set this switch to OFF for the standard LCD mode; in this mode, the LT-286e displays characters in the standard size and you see a one-inch margin on the top and bottom of the screen.
  • Page 109 4-This switch defines the primary display. Switch Set this switch to ON if the primary display is color. Set this switch to OFF if the primary display is monochrome. 5--This switch is reserved and must always be ON. Switch 6-This switch tells the computer whether the serial Switch port on the side of the computer is configured as a primary port or a secondary port.

  • Page 110: Replacing The Expansion Card Cover

    Replacing the Expansion Card Cover After you verify or change your DIP switch settings, you need to replace the expansion card cover. Follow these steps: 1. Set the cover on the computer and slide it back into position as shown below. Press firmly until the cover snaps into position.
  • Page 111 4. Lift the cover up into place and slide the release tab up to secure the cover. 5. Slide the handle back into place. 4-10 DIP Switches and Slide Switches...

  • Page 112: Setting The Slide Switches

    Setting the Slide Switches The slide switches let you do the following for your LT-286e: Cl Select a CPU clock speed of 12 MHz or 8 MHz tl Select an external CRT tl Select an external diskette drive. The slide switches are located on the bottom of the computer.
  • Page 113 Leave the switch in the right position if you do not plan to use an external diskette drive. You are now ready to set up and use your LT-286e computer. See Chapter 1 for details on setting up your computer.

  • Page 114: Appendix B Installing Options

    Appendix B Installing Options This appendix describes how you install optional devices on your LT-286e. You can install an external monitor, an external diskette drive, an internal modem, an internal card, and an external keyboard. You can also install a %-size, IBM AT-compatible expansion card and a math coprocessor.
  • Page 115 7. Connect the appropriate end of the monitor cable to the port marked RGB VIDEO on the right side of the computer, as shown below. 8. If the connector has retaining screws, tighten them with a screwdriver. 9. If necessary, plug the monitor’s power cable into the power inlet on the monitor.

  • Page 116: Connecting An External Diskette Drive

    Make sure the FDD EXT/INT slide switch is set to FDD EXT. See “Setting the Slide Switches” in Appendix A. Place the external diskette drive near the LT-286e. Lower the interface cover on the front, right side of the computer (when the front of the computer is facing you).

  • Page 117: Installing The Internal Modem

    Installing the Internal Modem You can install the optional, Epson internal modem in your LT-286e. Follow these steps: Make sure the computer is turned off. 2. Press down on the release tab to lower the modem cover on the back, left side of the computer (when the front of the computer is facing you).

  • Page 118: Installing The Ram Card

    6. Connect the modem to a phone line. Installing the RAM Card You can install the optional, Epson 1MB RAM card in your LT-286e. Follow these steps: 1. Make sure the computer is turned off. 2. Press down on the release tab to lower the RAM card cover on the back, right side of the computer (when the front of the computer is facing you).

  • Page 119: Connecting An External Keyboard

    5. Close the RAM card cover. Press up on the release tab to secure the cover. Connecting an External Keyboard You can attach an external keyboard to your LT-286e. The socket for the external keyboard is on the front, right side of the computer.

  • Page 120: Installing An Option Card

    Installing an Option Card You can also install a %-size, IBM PC AT-compatible, internal expansion card in your LT-286e. You can install a 2/3-size option card provided it physically fits in the expansion slot on the LT-286e. You cannot install a full-length option card. Also, you cannot install an 8-bit card that interferes with the 16-bit connector inside the LT-286e.
  • Page 121 You cannot install an optional video card in the expansion slot; video cards interfere with the built-in video capabilities of the LT-286e. You cannot install an option card that supports a diskette drive, a hard disk drive, or an expansion box that supports multiple cards.
  • Page 122 Follow these steps to install an option card: 1. Turn off the computer and disconnect all cables, including the AC adapter. 2. Remove the expansion slot cover on the left side of the computer. Press down on the release tab and lift off the expansion slot cover.
  • Page 123 5. Remove the expansion card cover as shown below. Lift up on the two tabs while you press on the grated squares to release the cover. Slide the cover away from you (toward the handle). 6. Remove the bracket on the side of the computer. B-10 Installing Options...
  • Page 124 7. Insert the card from the back of the computer. Line up the connector on the card with the socket inside the expansion slot. Insert the connector directly into the socket. Secure the card with the screw you removed from the bracket. 8.
  • Page 125 9. Turn the computer right side up with the handle facing you. 10. Replace the expansion slot cover on the left side of the computer. The cover has two tabs that fit into slots on the computer’s cover. tabs 11. Lift the cover up into place and slide the release tab up to secure the cover.

  • Page 126: Installing A Math Coprocessor

    Slide the handle back into place. Installing a Math Coprocessor You can also install a math coprocessor in your LT-286e. If your software supports a math coprocessor, it processes mathematical calculations much faster than without the coprocessor. You can easily install the math coprocessor in your LT-286e.
  • Page 127 3. Lift off the motherboard cover. 4. Notice the outline for the math coprocessor on the motherboard. 5. Make sure the notch on the math coprocessor lines up with the notch on the outline on the motherboard. Press the math coprocessor firmly into place. 6.

  • Page 128: Appendix C Specifications

    Appendix C Specifications Main Unit Main memory Math coprocessor Interfaces Parallel Serial Video External diskette drive Expanded keyboard Keyboard connector Speaker Option slot Memory 8OC286 microprocessor, 8 MHz or 12 MHz clock speed; switch selectable (640KB standard and 384KB extended) 80C287 coprocessor (optional), 8 MHz Standard 8-bit parallel, 25-pin, D-type female connector...

  • Page 129: Keyboard

    Modem Clock/calendar Keyboard Mass Storage Hard disk Diskette drives Display C-2 Specifications Internal modem slot; 34-pin male connector Real-time clock and calendar with battery backup 84 sculpted keys; LCD indicator icons for Num Lock, Caps Lock, Scroll Lock Optional, external keyboard Interchangeable, pop-out, 20MB or 40MB hard disk designed for low power consumption;...

  • Page 130: Power Supply

    Power Supply Power Requirements Physical Dimensions Height Width Depth Weight CRT mode supports ECD (enhanced color display), monochrome display, color display, and multisync-compatible CRTs External RGB monitor supported (EGA- compatible) Externally attached, rechargeable NiCad battery pack (4000 milliampere-hours); up to 2 l/z hours 12/5-volt AC adapter (can recharge battery pack while operating computer) with automatic 100-240V sensing...

  • Page 131: Environmental Requirements

    Environmental Requirements Temperature Humidity When traveling by airplane, take your LT-286e into the passenger compartment as carry-on luggage to prevent it from being stored in an unpressurized storage compartment. Options Modem Memory Expansion cards Carrying case C-4 Specifications Operating: 41° to 95° F (5° to 35°C) Non-operating: -4°...

  • Page 132: Glossary

    80C287 math coprocessor. AC adapter The device that converts AC voltage from a wall socket into the proper DC voltage to power your Equity LT-286e. The AC adapter provides enough power to recharge the NiCad battery pack while you operate the computer.
  • Page 133 Asynchronous A method of data transmission in which one device sends data one bit at a time to another device. This method allows for delays of any length between characters. AUTOEXEC.BAT file A special kind of batch file MS-DOS executes automatically each time you turn on or reset the computer.
  • Page 134 Color Graphics Adapter. A type of color monitor that can display graphics. You can plug a CGA monitor directly into the built-in CRT connector on the side panel of the Equity LT-286e. Character Anything you can print or display in a single space on the page or screen, including numbers, letters, punctuation marks, and graphic symbols.
  • Page 135 Complementary Metal-Oxide Semiconductor. A method of making low power, integrated circuits (chips). CMOS RAM A special type of low-power memory in your Equity LT-286e that records information about your system’s configuration. Unlike ordinary RAM, CMOS RAM is backed up by a small battery and is not erased when you turn off the computer.
  • Page 136 Command prompt characters MS-DOS ready to receive instructions. The MS-DOS command prompt ordinarily displays the current operating drive example). You can add other information to the command prompt using the PROMPT Configuration The particular arrangement of the hardware components of your computer.
  • Page 137 Cathode Ray Tube. A type of video display. A color monitor or a TV screen is an example of a CRT connector The socket on the side of your Equity LT-286e where you plug in the cable of a color monitor. CRT/LCD switch A slide switch located on the bottom of the computer that identifies the type of display you are using.
  • Page 138 Data The information a computer stores or processes. Data diskette A formatted diskette you use to store data files. Data file This term usually refers to files you create using an application program (for example, a memo created by a word processor), as opposed to files containing program code.
  • Page 139 DIP switch A small, two-position switch you use to supply configuration information to the computer (or to a device). DIP stands for Dual Inline Package. The LT-286e includes two sets of DIP switches, with 10 switches in each set. Directory A list of files on a hard disk or diskette.
  • Page 140 (with or without the extension). Execution speed The speed at which the CPU can execute commands. The Equity LT-286e can run at 8 MHz or 12 MHz. Also called clock speed or operating speed. Glossary 9...
  • Page 141 A particular kind of connector that can accommodate an option card. You can use the expansion slot in your Equity LT-286e, for example, to connect a 2/4ze, IBM AT-compatible option card, such as a LAN card or FAX board. Extension A suffix of up to three characters you can add to a filename.
  • Page 142 Floppy disk See Diskette. Format To prepare a new disk (or erase an old one) so that it can store information. Formatting a disk divides it into tracks and sectors and creates addressable locations on it. Graphics Lines, angles, curves, and other non-alphanumeric data. Gray scale mode The mapping of colors to shades of gray on the LCD screen.
  • Page 143 Hidden file A file whose name is not listed by the DIR command. MS-DOS stores two hidden files in the root directory of your hard disk. Some application programs also create hidden files. High-density A type of diskette. High-density, 3 l/z-inch diskettes have a capacity of 1.44MB.
  • Page 144 A unit used to measure the oscillation frequency of a computer’s internal timing clock. One megahertz is one million cycles per second. The Equity LT-286e operates at 8 or Memory The area where the computer stores data. Memory contents may be permanent (ROM) or temporary (RAM).
  • Page 145 MS-DOS An operating system from Microsoft that comes with your computer. See Operating system. NiCad The type of battery used by your Equity LT-286e. NiCad stands for nickel-cadmium. Numeric keypad The number keys grouped on the upper, right side of the keyboard.
  • Page 146 Option card A circuit board you install in a slot in your main unit. Option cards provide additional capabilities, such as a mouse, fax, or network. The expansion slot on the LT-286e is accessed from the bottom of the computer. Parallel A type of interface that transmits data in groups of bits.
  • Page 147 Pathname The list of directories the operating system must search through to locate a file. For example, the pathname for a file named CONTRACT.TXT subdirectory is \ BUSINESS \CONTRACT.TXT. Peripheral An external device, such as a printer or modem, connected to a computer.
  • Page 148 Read To copy data from one area to another. For example, when you open a text file stored on disk, the computer reads the data from the disk and displays it on the screen. Read/write head The physical device inside a disk drive that reads and records data on the magnetic surface of a disk.
  • Page 149 An MS-DOS program that lets you run programs and perform operating system commands from menus. Slide Switch A switch on the bottom of the LT-286e that controls certain operational features. Software The programs that enable the computer to perform the tasks and functions you indicate.
  • Page 150 Status indicator bar A built-in LCD indicator panel that shows how you are using the computer. Stop bit A signal sent in serial communications to mark the end of a character. Subdirectory A disk directory that branches down from another subdirectory or from the root directory.
  • Page 151 Tracks Per Inch. A measure of the density with which data can be stored on a diskette. Track A circular region on a diskette, which is divided into sectors. Each side of a 1.44MB tracks. Each side of a 360KB 5 ‘/.+-inch diskette has 40. On a hard disk, tracks are called cylinders.

  • Page 152: Index

    Index AC adapter, 3, 1-3, 1-14, 2-24-25, connecting, 1-10 -12 disconnecting, 1-12 using, 2-1 -2 AC wall outlet, 1-13 APPEND command, 3-11 Application programs, 2, 4, 2-11 2-15, 3-2, 3-5, 3-31 starting, 3-31 AUTOEXEC.BAT file, 1-22, 2-25 -26, 3-11, 3-29 -30 creating, 3-30 modifying, 2-25 -26 using, 3-29 -30...
  • Page 153 CONFIG.SYS file, 1-22 Contrast, 4-3 adjusting, 1-16 lever, 1-16 Control key, Ctrl Alt Del, 2-27 Ctrl Break, 2-27 Ctrl C, 2-27 COPY command, 3-13, 3-17, 3-20, 3-30, 4-5 using, 3-20-22 Copying, data, 3-17-23. See also COPY command CPU clock speed, 1-1, 2-7, A-11 CRT/LCD, display mode, A-1 slide switch, 4-2-3, A-5, A-12,...
  • Page 154 EGA, configuration, A-4 -5, A-7 video mode, 2, 1-1, A-l, A-6 Electrical outlet, 2-1 Enhanced color display, A-4 Enter DOS command, MENU, 3-28 Environmental requirements, C-4 Execution speed, 2, 2-11, 4-4 selecting, 2-11 Expanded LCD mode, A-4, A-7 Expansion, card cover, A-2 replacing, A-9 -10 cards, C-4 slot, 1...
  • Page 155 Install diskette, inserting, 1-21 -22 Installation program, 1-22 Internal commands, 3-4 diskette drive, 1-1, A-5, A-7. See also Diskette drive keyboard, 2-8, A-5. See also Keyboard memory. See RAM modem, 2, C-2. See also Modem installing, B-4 -5 printer port, A-5. See also Parallel interface self test, 1-15-16 serial port, A-5 See also Serial...
  • Page 156 On-line information, 3-25 Operating system, 3, 1-22, 3-1 commands, 3-24 See also MS-DOS Option, card, installing, B-7 -13 slot, C-1 Optional devices, B-1 video card, B-8 Options, C-4 installing, B-1 -14 Parallel, interface, 1-2, l-l, 1-6-8, A-1 port, A-9 printer, A-1 Parameters, 3-4 Parent directory, 3-12 PATH command, 3-11, 3-29...
  • Page 157 Shell program, 3, 2-26, 3-9 using, 3-24 Shock indicator, 1-1, 2-3, 2-7, A-1 Slide switches, 2, A-11 -12 setting, 4-1, SMARTDRV.SYS, 2-24 Source, diskette, 3-19 file, 3-20 Special keys, 2-15 -17 Speed indicator, 1-15 Standard LCD mode, A-7 Standby mode, 2-12 Status indicator bar, 1-14, 2-1 -2, 2-4, 2-7 -8, 4-1 -2 Storing data, 3-4-5...
  • Page 158 Reader Comment Card Equity LT-286e User’s Guide Please use this card to evaluate this manual. Your comments and suggestions will help us improve our publications. Please rate the following: n Organization of this manual Technical accuracy Completeness of instructions E Clarity of concepts and wording...
  • Page 159 PLACE EPSON America, Inc. 2780 Lomita Blvd. Torrance, CA 90505 MS 4-1 Fold Here Tape Here - Do Not Staple...
  • Page 160 brightness lever contrast lever internal diskette drive handle diskette Port drive port hard disk drive status indicator bar expansion slot cover handle...

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