Epson 386 Guide de l'utilisateur

EQUITY™LT™-386SX User’s GuideEPSON®

Appendix ADIP SwitchesSetting the DIP Switches... A-1Accessing the DIP Switches...A-2Replacing the Expan

Using HELPThe Epson HELP utility provides on-line information about theMS-DOS commands and programs. You can use HELP in eitherof two ways:CITo displa

To bypass the HELP menu and display information about aspecific command, follow these steps:1.At the command prompt, type HELP and the name of theMS-D

Using MENUYour Equity LT-386SX comes with an Epson utility calledMENU. This program gives you access to several utilities thatperform the functions of

MENU Utility OptionsThe MENU utility offers five options:File Utilities Lets you back up and restore files, replacefiles, compare files, change file a

Using an AUTOEXEC.BAT FileYou may find that there are some commands you need to runevery time you turn on your computer.To run a command or a series o

Creating an AUTOEXEC.BAT FileYou can create an AUTOEXEC.BAT file with any programthat lets you store a text-only file (also called an ASCII textfile).

Starting an Application ProgramAny time you see the MS-DOS command prompt (for example,A : \ > or C : \ >), you can start using an application p

If you have a word processing program that allows you to savethe file as an unformatted, text-only file (also called an ASCIItext file), you can use t

About EMM386.SYSEMM386.SYS is an expanded memory manager that lets youuse extended memory above 1MB to emulate expanded memoryso that you can use appl

X:mmmm-nnnn represents a range of memory in hexadecimal tobe excluded from the EMM386.SYS page frame or othermappable pages. This parameter is necessa

Setting the Run Time Parameters... D-7Timebound Testing... D-9Continuous Testing...

For example, to convert 512KB of extended memory toexpanded memory and ensure that EMM386.SYS does notlocate its page frame or other mappable pages in

Chapter 4TroubleshootingYou should not encounter any difficulties as you set up and useyour Equity LT-386SX. You can correct most problems byadjusting

2.If the status indicator bar still does not come on, turn offthe power switch. Check that the AC adapter is securelyconnected to both the computer (o

3.If you are using OS/2, refer to Appendix E for informationon how to install the LCD video driver from the Referencediskette.4.If you are using Micro

The Computer Locks UpIf the computer does not respond to your keyboard entries, trythe following:1.Wait a few seconds. Some operations take longer tha

2.Is the diskette write-protected? If the write-protect switch isset, first make sure the diskette does not contain files you donot want to change or

Hard Disk ProblemsIf you have problems with your hard disk when you first start touse it, make sure it is properly set up. See the description ofinsta

Appendix ADIP SwitchesThis appendix describes the DIP switches you set to define yoursystem’s configuration. The computer uses this information eachti

Accessing the DIP SwitchesTo locate the DIP switches, follow these steps:1.Remove the expansion slot cover on the left side of thecomputer. Press down

4.Remove the expansion card cover as shown below. Lift upon the two tabs while you press on the grated squares torelease the cover. Slide the cover aw

Floppy Disk Diagnostics...D-31Diskette Format...D-32Drive Speed Test...

Because the computer is upside down, the DIP switch numbersare upside down and the ON/OFF orientation is reversed. Takecare when changing a DIP switch

56ON‘OFFON*OFFON*OFFONOFF*ON’Enables the serial port.Disables the serial port.Selects parallel port 1 (LPT1, I/O addresses 378Hthrough 37FH) as the pa

Switch 3 tells the computer whether you want the internalserial port (labeled RS232C on the right side of the computer)to be COM1 or COM2. When switch

Replacing the Expansion Card CoverAfter you verify or change your DIP switch settings, you need toreplace the expansion card cover. Follow these steps

3.Replace the expansion slot cover on the left side of thecomputer. The cover has two tabs that fit into slots on thecomputer’s cover.4.Lift the cover

Appendix BInstalling OptionsThis appendix describes how to install the following optionaldevices in your LT-386SX:Q External monitor0 External diskett

5.Connect the appropriate end of the monitor cable to theport marked RGB VIDEO on the right side of thecomputer, as shown below.RGB VIDEO port6.If the

Connecting an External Diskette DriveFollow these steps to connect the optional, 1.2MB, 5 ‘/+-inchdiskette drive to your LT-386SX:1.2.3.4.5.Make sure

6.Tighten the retaining screws on the connector with ascrewdriver.7.Plug the drive’s power cable into an electrical outlet.When you are ready to use t

3.4.5.6.Slide the modem card into this slot. Secure the connectoron the modem to the socket inside the slot.Snap out the plastic moldings that cover t

Appendix FUsing Other Reference Diskette UtilitiesUsing Microsoft Windows/386...F-1Using Microsoft Windows, Version 3.0...

3.There is a groove in the top left side of the RAM card slot.Fit the card into this groove, and slide the RAM card intothe slot. Push the card back a

3.Attach the keyboard connector to the external keyboardsocket, labeled EXT.KEY on your computer. If the keyboardconnector interferes with the EXT.FDD

An option card must meet certain power supply requirements.The option card cannot draw more than the specified current(Amps):+ 12 Volts0.1 Amps-5 Volt

Follow these steps to install an option card:1.Turn off the computer and disconnect all cables, includingthe AC adapter.2.Remove the expansion slot co

5.Remove the expansion card cover as shown below. Lift upon the two tabs while you press on the grated squares torelease the cover. Slide the cover aw

7.Insert the card from the back of the computer. Line up theconnector on the card with the socket inside the expansionslot. Insert the connector direc

9.Turn the computer right side up with the handle facing you.10. Replace the expansion slot cover on the left side of thecomputer. The cover has two t

Installing a Math CoprocessorYou can install a math coprocessor in your Equity LT-386SXeasily. If your software supports a math coprocessor, it proces

Appendix CSpecificationsMain UnitCPUMain memoryMath coprocessorInterfacesParallelSerialVideoExternaldiskette driveExternal keyboardSpeakerOption slot8

MemoryInternal RAM memory card slot; allowsexpansion to 4MBModemInternal modem slot; 34-pin maleconnectorClock/calendarReal-time clock and calendar wi

IntroductionYour Epson®’ Equity LT-386SX portable computer is acompact, high-performance system you can use just aboutanywhere: at the office, at home

CRT mode enabled automatically byinserting a connector into the RGBVIDEO port before power onExternal RGB monitor supported (VGA-compatible)Power Supp

Environmental RequirementsTemperatureOperating: 41° to 95° F (5° to 35°C)Non-operating: -4° to 122°F (-20° to60°C)HumidityOperating: 20% to 80%(non-co

Appendix DSystem DiagnosticsThis appendix describes how to use the diagnostics program totest the condition of your computer’s main unit and periphera

Starting the Diagnostics ProgramTo start the diagnostics program, follow these steps:1.2.3.4.Insert the Reference diskette in drive A.Turn on or reset

If you want to create a database, follow these steps:1.Type the name (from 1 to 50 characters) that identifies yourcompany or the computer and press E

To update the existing database, press Y and Enter. Nowyou respond to the screen prompts to update theconfiguration.If you do not want to update the d

The Run Time Parameters window lets you specify how longyou want the test to run, whether you want the program tonotify you of each error as it occurs

Selecting Diagnostics TestsThis section describes the various ways you can select the testsyou want to run.To start a single test, move the cursor to

You cannot include certain tests in a group. The tests that mustrun separately include:System BoardTimer testReal Time Clock testHard DiskHard Disk Fo

Type T and press Enter to run the selected tests in Timeboundmode. In Timebound mode, the program runs the tests for theamount of time you specify.Typ

The 80386SX microprocessor inside your Equity LT-386SX canrun at an execution speed of 16 MHz or 8 MHz. Ordinarily,you’ll want to use the 16 MHz speed

Next, the program requests information it needs to perform thetype of testing you selected.Timebound TestingIf you selected ‘Timebound testing, you se

If you specify a number larger than 65535, the program subtracts65536 from your entry to determine how many times to run thetest. For example, if you

After selecting error logging, the program uses this device(and/or disk drive) for error logging until you indicate you donot want error logging. You

Executing Diagnostics Tests in Batch ModeTo execute the selected group of diagnostics tests in batchmode, simply press F6. The diagnostics program hig

System Board DiagnosticsThe tests listed in the System Board submenu provide acomplete diagnostics check of the system board.CoProcessor testDMA Contr

Processor Speed TestThis test identifies the CPU clock speed and displays a messagesimilar to this:Measure CPU speed in Megahertz = 16.00Coprocessor T

Interrupt Controller TestThis test performs read/write tests on the interrupt maskregisters and checks for invalid interrupts.During the test, you see

RTC TestThis test verifies the accuracy of the real time clock bycomparing it to the timer 0 interrupt.During the test, you see this message:Testing R

Memory DiagnosticsThe tests listed in the Memory submenu provide a completediagnostics check of the system’s built-in memory.BIOS ROM TestParity testP

BIOS ROM TestThis test checks the data path of the BIOS ROM.When the test completes successfully, you see this message:System ROM module test passed.P

The following optional equipment is available from your Epsondealer:D A 16 MHz 80387SX math coprocessorClA 2400-baud, Hayes-compatible, auto-dial inte

Walking 1’s TestThis test checks the voltage in the data lines for any shorts andchecks for any data bits that are always 1.During the test, you see t

Refresh TestThis test checks the refresh interval.If an error occurs, the program displays this message:Failure in Refresh test.When the test complete

Destructive diagnostics tests include:Hard Disk FormatAuto InterleaveMedia AnalysisForce Bad TracksThe non-destructive diagnostics tests include:Perfo

Disk drive typeThe program displays the following prompt for the disk drivetype:Disk Drive type? 2Select drive type 2 for a 20MB drive or drive type 1

Bad track listThe program displays the following prompt for the bad tracklist:Mark Bad Tracks (Y/N) ?Entering the bad track list is optional. If you r

Start and end head numbersThe program displays the following prompts for the starting andending head numbers:Start Head number?End Head number?Enter t

When you select Hard Disk Format, the program requests thefollowing hard disk parameters:Disk drive identifierDisk drive typeInterleave factorBad trac

When you select Auto Interleave, the program requests the diskdrive identifier and disk drive type. After you specify theparameters, you see these mes

The program displays the following messages after you specifythe hard disk parameters:WARNINGAll data on Hard disk you havespecified may be LOST...Do

When you select the Performance Test, the program requeststhe disk drive identifier and disk drive type.Seek TestThis test checks the seek capability

Q MS-DOS Shell User’s Guide-Use this manual to learnabout the MS-DOS Shell feature.ClMS-DOS Command Summary-Use this as a quickreference when you need

Check Test CylinderThis test checks the test cylinder, which is the last cylinder onthe hard disk.Perform this test if you receive a hard disk error w

Press Y and Enter to start the test. Press N and Enter to stopthe operation.Hard Disk Error MessagesThe program displays two types of error messages w

Floppy Disk DiagnosticsThe tests listed in the Floppy Disk submenu provide a completediagnostics check of the system’s diskette drive.Diskette Format1

Diskette FormatThis test checks the format of the floppy disk controller anddrive. It does not format the diskette for any particularoperating system.

Sequential R/W TestThis test checks the sequential seek, read, and write capabilitiesof a floppy disk drive. It performs a sequential read/writeoperat

CHANGE LINE Not AvailableThe program displays this message if you attempt to run theChange Line Test on a drive that does not support a changeline, su

Controller TestThis test checks the keyboard controller.Scan/ASCII Code TestThis test checks the scan codes assigned to the keys on thekeyboard.When y

Video DiagnosticsThe tests listed in the Video submenu provide a completediagnostics check of the video adapter. Use these tests to checkthe operation

40x25 Display TestThis test checks the 40x25 display feature of the displayadapter.320x200 Graphics TestThis test checks the 320x200 graphics display

640x480 Graphics TestThis test checks the 640x480 graphics display of the VGAadapter. (In LCD mode, colors are converted to 16 shades ofgray.)Video Er

How To Use This ManualThis manual explains how to set up and care for your EquityLT-386SX. It also describes how to use your computer and rundiagnosti

You may see one of the following error messages during this test:Error- Printer Out of PaperError - Printer Not SelectedError - Printer Interface I/O

You may see one of the following error messages during this test:Error - Break DetectedError -Framing errorError - Overrun errorError - Parity errorEr

Keyboard Scan/ASCII CodesPrint Screen(SYSRq)Scroll LockNum LockHometPage UpF1F2F3F4F5F6F7F8F9F10F11F12****29**0C4748490C3B3C3D3E3F40414243448586**60**

** No codes- IgnoredD-42System Diagnostics

** No codes- IgnoredSystem DiagnosticsD-43

CVbnm, (comma)/Right ShiftAlt\[space bar]Caps LockInsertDeleteShift SysRqShift ’ (~)Shift Num LockShift Scroll LockShift - (-)Shift HomeShift tShift P

Shift F1Shift F2Shift F3Shift F4Shift F5Shift F6Shift F7Shift F8Shift F9Shift F10Shift F11Shift F12Shift = (+)Shift tShift +Shift EscShift 1 (!)Shift

Shift 9 (0Shift 0 0)Shift EndShift 1Shift Page DownShift t (bksp)Shift TabShift QShift WShift EShift RShift TShift YShift UShift IShift OShift PShift

Shift FShift GShift HShift JShift KShift LShift ; (:)Shift ’ (")Left ShiftShift ZShift XShift CShift VShift BShift NShift MShift, (<)Shift. (&

** No codes- IgnoredD-48 System Diagnostics

Appendix E explains how to install the LCD video driver forOS/2.Appendix F explains how to install other utilities on theReference diskette, including

** No codes- IgnoredSystem DiagnosticsD-49

14 14151916 15170918OF19101A 1B1B 1D1C0A2B1C1E 011F132004210622 07230824 0A25 0B260C- --**2C2D-**1A18** No codes- IgnoredD-50 System Diagnostics

** No codes- IgnoredSystem DiagnosticsD-51

** No codes- IgnoredD-52System Diagnostics

** No codes- IgnoredSystem DiagnosticsD-53

** No codes- IgnoredD-54System Diagnostics

** No codes- IgnoredSystem DiagnosticsD-55

Num Lock Shift JNumLock Shift KNumLock Shift LNum Lock Shift ;Num Lock Shift MNum Lock Shift >NumLock Shift /** No codes- Ignored4F50514E5253-00000

Appendix EUsing OS/2If you have purchased OS/2 (version 1.1) for your EquityLT-386SX, you need to install the LCD video driver Epson hasprovided on yo

5.To copy the BVSCALLS.DLL file from the hard disk ontothe copy you made of the OS/2 Installation diskette, typethe following and press Enter:COPY C:B

This equipment generates and uses radio frequency energy and if it is not installedand used properly, that is, in strict accordance with the manufactu

Chapter 1Setting Up Your SystemSetting up your Epson Equity LT-386SX portable computer iseasy. Just follow the steps in this chapter. They describe ho

6.Type the following and press Enter:LIBPATH=C:\OSZ\LCD7.Press F6 and then press Enter.8. Reboot the computer.You can now use OS/2 with the LCD. If yo

Appendix FUsing Other Reference Diskette UtilitiesThis appendix describes how to use the following utility files onyour Reference diskette:ClLCD video

2.Be sure that your copy of Setup and Build is installed in thediskette drive. Type A: and press Enter to change to thediskette drive.3.Type SETUP and

Using Microsoft Windows, Version 3.0Epson provides drivers to allow Microsoft Windows (version3.0) to function properly on the LCD. If you have purcha

5.Continue with the Setup procedure according to thedirections in the Windows documentation and on thescreen.Using VGARAMThe VGARAM utility loads the

Using SCROLLThe SCROLL utility improves the LCD display for runningcertain graphics scrolling programs. When you are running yourapplication program,

Glossary80386SXA CMOS integrated circuit, or chip; the central processing unit(CPU) of your Equity LT-386SX. The CMOS-type chipprovides low power cons

AsynchronousA method of data transmission in which one device sends dataone bit at a time to another device. This method allows fordelays of any lengt

BIOSBasic Input/Output System. Routines in ROM memory thathandle basic input/output functions of the operating system.BitA binary digit (0 or 1). The

CMOS RAMA special type of low-power memory in your Equity LT-386SXthat records information about your system’s configuration.Unlike ordinary RAM, CMOS

The standard DIP switch settings are appropriate whether yourcomputer uses the LCD or an external color monitor andwhether your computer uses only the

ConfigurationThe particular arrangement of the hardware components of yourcomputer. Your configuration, for example, might include aprinter and an int

CRT connectorThe socket on the side of your Equity LT-386SX where you plugin the cable of a VGA monitor.Current directoryThe directory in which you ar

Data lengthThe number of bits per character in serial transmissions.DefaultA value or setting that takes effect when you turn on or resetthe computer.

DirectoryA list of files on a hard disk or diskette.DiskA general term meaning either a diskette or a hard disk.Disk driveThe physical device (either

ECDEnhanced Color Display.EGAEnhanced Graphics Adapter. A type of video monitor that candisplay graphics.Executable fileA file containing program inst

ExtensionA suffix of up to three characters you can add to a filename.External commandA command MS-DOS stores in a program file. The FORMATcommand, fo

GraphicsLines, angles, curves, and other non-alphanumeric data.Gray scaleThe mapping of colors to shades of gray on the LCD screenGW-BASICMicrosoft’s

InterfaceA hardware or software connection used to transmit databetween equipment or programs.Internal commandA command, such as DIR or ERASE, that MS

Main memorySee Base memory.Main unitThe part of the computer that houses the central processingunit, random access memory, disk drives, and other supp

ModemA device that allows a computer to send or receive data over atelephone line.MonitorThe screen of a CRT.MotherboardThe main circuit board of your

In addition to this manual, you should have the following items:Cl The main unitCl The battery packCi The AC adapterLI The power cordClThe hard disk d

Operating systemA collection of programs that allows a computer to control allof its operations. The operating system determines howprograms run on th

PathnameThe list of directories the operating system must search throughto locate a file. For example, the pathname for a file namedCONTRACT.TXT that

RAMRandom Access Memory. The portion of the computer’smemory that runs programs and temporarily stores data whileyou work. All data stored in RAM is e

ROMRead Only Memory. The portion of the computer’s memorythat contains permanent instructions and cannot be modified.The power-on diagnostic programs,

SETUPA program you can run when you turn on or reset the computer.In SETUP you define the configuration settings for your EquityLT-386SX.Shadow RAMThe

Stop bitA signal sent in serial communications to mark the end of acharacter.SubdirectoryA disk directory that branches down from another subdirectory

TrackA circular region on a diskette, which is divided into sectors.Each side of a 1.44MB or 720KB diskette has 80 concentrictracks. Each side of a 36

Write-protectTo prevent a diskette from being overwritten. When a disketteis write-protected, you cannot erase, change, or record over itscontents.22G

IndexAAC adapter, 1, 3, 1-3, 1-11 -15,2-14, 2-6, 2-21, 2-25, 2-26,4-2, B-9, C-3connecting, 1-11 -13disconnecting, 1-13using, 2-1 -2AC wall outlet, 1-1

Computer,Dresetting, 1-15, 1-18-19, 1-23-24,2-28, 4-4starting, 1-15 -16, 4-1 -2storing, 2-10, C-4turning off, 1-11, 1-15, 2-3, 2-5,2-8, 2-20, 2-22, 2-

2Installing the Hard Disk DriveThe computer comes with an empty hard disk box installed inthe main unit. Your hard disk drive, which may be either 20M

Diskette drive,external, 2-3, 1-1, 1-18, 1-21,2-7, 2-18, 4-5, A-4 -6connecting, 1-11, 1-16,B-3 -4internal, 1-1, 1-21, 2-7,A-4 -6Diskettes,3i/2-inch, 2

HHandle, 2-10, A-3, A-7 -9, B-12 -13Hard disk drive, 3, 1-1 -7, 1-18, 1-21,1-25, 2-3, 2-7, 2-24 -26, 3-2,4-6, C-2 -3, D-20 -30care, 2-24-25diagnostics

Memory,resident, 2-12, 2-15, 2-26-27,F-4 -5read-only memory (ROM),1-18, 1-23,1-25, D-17 -20,F-4scratch RAM, 1-18, 1-20, 1-23SETUP, 1-19, 1-25shadow RA

Power,off, 1-11, 1-15, 2-3, 2-5, 2-8, 2-20,2-22, 2-28 -29, 4-1 -2, A-l, B-l,B-3 -6, B-9, B-13requirements, C-3supply, C-3switch, 1-15 -16,4-1-3, A-2Po

SMARTDRV.SYS, 2-25Source,diskette, 3-19file, 3-20Special keys, 2-16-18Speed indicator, 1-17,2-7Standby mode, 1-20, 1-24,2-3,4-2Status indicator bar, 1

ernal diskette driveexternal keyboard portserial portexternal diskette portexternalmonitor portstatus indicator barexpansion slot coverhandle

2.To remove the empty hard disk box, press in on the PUSHbutton. When the box releases, lift it straight up and out.Store the empty hard disk box with

4.Position the hard disk drive directly above the hard diskdrive slot on the computer.The connectors on the hard disk drive fit into the socketson the

6.Press firmly (but carefully) on the hard disk drive until itsnaps into place.A new hard disk drive must be partitioned and formatted to runan operat

Using the Parallel InterfaceThe computer’s Centronics-compatible parallel interfaceprovides a 25-pin, D-shaped female connector. Most Epsonprinters ha

labeled PRINTER on the right side of the computer, asshown below. If the plug has retaining screws, tighten themby hand or with a screwdriver.5.Connec

6.Plug the printer’s power cable into an electrical outlet.The standard DIP switch settings for the LT-386SX define yourPRINTER port as the primary pa

EPSON®EQUITY™LTTM-386SXUser’s Guide

Make sure the serial port is set up to function properly. If youare using the port for a serial printer, you must also redirectprinter output from the

3.The end of the AC adapter cable is shaped like a box.Notice the plastic safety cover that protects the connectoron the AC adapter. Slide the release

Be sure to read “Using the AC Adapter” in Chapter 2 for moreinformation about the AC adapter.When you are not using the AC adapter, replace the safety

5Connecting the Power CordFollow these steps to connect the power cord:1.Connect the power cord to the adapter’s input socket.2.Plug the other end of

6Starting the SystemAfter you complete steps 1 through 5, you’re ready to turn onthe power and start using your Equity LT-386SX computer.Read these sa

To turn on your computer, follow these steps:1.Turn on any peripheral devices, such as a printer, anexternal diskette drive, or a color monitor.riveon

The speed indicator on the status bar shows your operatingspeed (16 MHz), and after a few seconds the computer begins toperform an internal self test.

Initial Screen DisplayAfter the computer completes its self test, a message tells youhow much RAM is available:01920 KB OKNext you are prompted to run

LlWhether or not to enable shadow RAMLlThe amount of time the computer is to use for its power-saving standby modeClThe LCD display contrast (positive

The Equity LT-386SX displays the menu below.Date imnl&te/year): Mon, Jan 29 1990Base memory size : 640KBTime (hourtminlsec): 10 : 00 : 00Ext. mem

IMPORTANT NOTICEDISCLAIMER OF WARRANTYEpson America makes no representations or warranties, either express or implied, byor with respect to anything i

Setting the Diskette Drive(s)The possible selections for drives A and B are:CI Not installedLl1.44MB 3 l/z”Ll720KB 3 l/z”Li1.2MB 5 l/4”Ci 360KB 5 9’4”

Setting the Primary DisplayThe computer considers the LCD your primary display, unlessyou connect an external monitor to the RGB VIDEO portbefore turn

Setting the Scratch RAM OptionScratch RAM is an area of memory that OS/2 and someapplication programs use. The Equity LT-386SX lets you pickwhat area

Setting the Standby ModeStandby mode increases battery life by shutting off the LCDbacklight, slowing down the CPU clock speed to 8 MHz, anddecreasing

Saving Your SettingsAfter you have made your selections for SETUP, press ESC toexit from the SETUP menu. The Equity LT-386SX asks,Write data into CMOS

8Inserting the Install DisketteFollow these steps to insert the MS-DOS Install diskette:1.Hold the diskette with the printed label facing up and thear

After you have copied the MS-DOS files onto the hard disk,your original MS-DOS diskettes become your backup copies.Store these diskettes in a safe pla

Chapter 2Use the Equity LT-386SXThis chapter describes some basic procedures for using yourcomputer.Using the AC AdapterThe Equity LT-386SX can be pow

Using the BatteryThe battery pack that comes with the Equity LT-386SXcontains NiCad (nickel cadmium) batteries that power thecomputer when the AC adap

Remember the following when you are charging the battery:0Use only the AC adapter that comes with the EquityLT-386SX. Using a different adapter can da

IMPORTANT SAFETYINSTRUCTIONS1.Read all of these instructions and save them for later reference.2. Follow all warnings and instructions marked on the p

To maximize the charge time your battery supplies, completelydischarge and then recharge the battery from time to time. Todo this, follow these steps:

2.Make sure the power switch on the computer is off.3.Turn the computer around so its back is facing you. Positionthe back of the computer slightly ov

When the battery pack is connected, you can either use thepower from the battery pack or attach the AC adapter forunlimited power.To remove the batter

Status Indicator BarThe status indicator bar above the keyboard providesinformation about the computer’s operation.43ElbEXT.FD16 MHZpmjIndicates when

SCRLNUMIndicates when you can use the LCDdisplay; blinks when the display is instandby mode.Indicates when the internal keyboard is inScroll Lock mode

Opening and Closing the ScreenTo open the screen, press the latch release button in the centerof the computer (shown below). Then lift the screen back

If you close the screen while the computer is on, you hear awarning beep. Always turn off the computer before closing thescreen.Using the HandleThe Eq

Selecting Execution SpeedThe Equity LT-386SX can operate at two execution speeds:8 MHz and 16 MHz. At the higher speed, the computerperforms all tasks

Changing the Gray Scale Pattern for Any ColorThe Equity LT-386SX assigns VGA colors to 16 shades of gray(or gray scales). There is a utility program c

If you are running SETLCD as a memory-resident program, holddown Ctrl and press left Shift and S simultaneously wheneveryou want to display the menu t

12.Except as specifically explained in the User’s Guide, do not attempt toservice this product yourself. Opening or removing those covers that aremark

The table below provides the default gray scale value for everyBlackBlue GreenCyanRedMagentaBrownWhiteGrayLight blueLight greenLight cyanLight redLigh

Items in brackets are optional. (Do not type the brackets intothe command.)cc is the color number. This may be any one- or two-digitnumber from the co

Special Keys on the Equity LT-386SX KeyboardThe illustration below shows the Equity LT-386SX keyboard.Certain keys on your keyboard serve special func

The following table describes special keys on the EquityLT-386SX keyboard.F1 -F10EscTab 5,CtrlShiftAltPrint ScreenScroll LockBreak + CtrlNum LockPerfo

Caps LockInsDelEnter Jt (Backspace)Home, EndPage UpPage DownT+ltSysRq + AltChanges letter keys from lowercase touppercase; changes back to lowercase w

How Diskettes WorkThe diskettes you use are flexible plastic, coated with amagnetic material and enclosed in a protective plastic case.Information is

Because of their size difference, you cannot use a 3 ‘/z-inchdiskette in a 5 ‘/+inch drive or vice versa. If you have both typesof drives, however, yo

Keep diskettes away from dust and dirt. Small particles ofdust or dirt can scratch the magnetic surface and destroydata. Dust can also ruin the read/w

Inserting and Removing DiskettesTo insert a diskette into the drive, hold it with the label facingup and the arrow on the left side pointing into the

Making Backup CopiesCopy all diskettes that contain programs. After you make yourcopies, store the originals in a safe place away from yourworking dis

ContentsIntroductionHow To Use This Manual. . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5Where To Get Hel

To remove the write protection, move the switch up toward thecenter of the diskette to cover the opening.Using the Hard Disk DriveUnlike a diskette, a

IINever remove the hard disk unit when the computer’spower is on.QNever attempt to open the hard disk unit. The disk itself isenclosed in an airtight

Turning Off the Hard DiskIf you are running the computer on its battery and you do notneed to use the hard disk, you can use the HDDPSAVE utilityon th

ClInstall the appropriate keyboard information for the countryin which you’re using your computer0Allow you to start the MS-DOS Shell program.These in

Resetting the ComputerYou can reset the computer to reload the operating system or torestart a program. You may also need to do this if an error occur

Turning Off the ComputerBefore you turn off your computer, save your data, exit theprogram you are using, and then remove all diskettes from thedisk d

Chapter 3Using MS-DOS With Your ComputerYour Equity LT-386SX comes with version 4.01 of MS-DOS.MS-DOS manages the routine work of your computer system

ClUsing the MS-DOS Shell programCIUsing the Epson HELP utilityClUsing the Epson MENU utilityClUsing an AUTOEXEC.BAT fileQ Starting an application prog

The C> prompt that appears when you load MS-DOS from thehard disk tells you that drive C, your hard disk, is the currentdrive (also called the defa

The MS-DOS Command FormatTo enter an MS-DOS command, you need to type thecommand in the correct format. The MS-DOS commandformat consists of the comma

Chapter 2Using the Equity LT-386SXUsing the AC Adapter...2-1Using the Battery...2-2Connect

Entering MS-DOS CommandsYou can enter an MS-DOS command when you see theMS-DOS command prompt. Type the command name and anynecessary parameters and d

The name can be up to eight characters in length. It is a goodidea to choose a name that describes the contents of the file.You can use any characters

When you format your hard disk, MS-DOS creates a singledirectory for the disk. This directory is called the root directory.Because the hard disk has r

On your own hard disk, you can create a subdirectory structurethat is more complex than this one. Or you may prefer to keepthings simple. Organize you

CI Changing directoriesClCopying from one directory to another0 Deleting a directory.You may also want to read about Shell, an MS-DOS programthat make

To list the files in a different directory on the current drive,type the pathname of that directory. For example, to list thecontents of the LEDGER su

Because this pathname does not begin with a backslash,MS-DOS starts in the current directory (PERSONAL), movesto the subdirectory LETTERS, then finds

The screen displays a list of files in the root directory, alongwith the names of any subdirectories of the root directory:LEDGER<DIR>9-14-89 10

To change from any directory to its parent directory (thedirectory of which it is a subdirectory), type the following andpress Enter:CD . .The two per

Deleting a DirectoryIf you no longer need a directory, you can remove it with theRMDIR command (which can be abbreviated RD). Beforeremoving a directo

Using Directories...3-6The Current Directory...3-8Listing the Contents of a Directory...

Formatting a 1.44MB DisketteTo format a 1.44MB diskette, follow these steps:1.If necessary, log onto drive C. If you are not in the directorycontainin

At this point, you can format another diskette by pressing Yand Enter, or return to the MS-DOS command prompt bypressing N and Enter.Formatting a 720K

4.Enter up to 11 characters for the volume label to be storedon the diskette and press Enter. FORMAT displays thesemessages:730112 bytes total disk sp

NoteUsing DISKCOPYThe DISKCOPY command lets you copy an exact image of onediskette onto another diskette as long as the two diskettes arethe same size

4.Insert the diskette you want to copy from (your sourcediskette) in the diskette drive and press any key.DISKCOPY copies the contents of the diskette

Using COPYThe COPY command lets you copy files in several ways:CICopy individual files from a diskette or the hard disk toanother diskette or hard dis

If you want to copy this file from the diskette in drive A to thehard disk but want to change the name of the copy fromREPORT to FACTS, type this comm

To copy all files on the diskette in drive A to the currentdirectory on the hard disk, type the following and press Enter:COPY A:*.* C:To copy all fil

CIThe BACKUP command can perform incremental backups.That is, you can copy only those files that changed sincethe last time you used the BACKUP comman

Deleting DataTo delete a file, type DEL and then the full name (includingthe extension, if any) of the file you wish to delete. Forexample, to delete