Epson EQUITY 3865X/20 PLUS Instrukcja Użytkownika

EPSON®EQUITY 3865X/20 PLUSU s e r’s G u i d e

Chapter 7Installing and Removing Disk DrivesUsing the Correct Drive Bay...How to Use This Chapter...

When you enable a power-on password but do not use networkserver mode, you enter the password before the computer loadsMS-DOS. Once you load MS-DOS, a

Now you should be able to use your computer as desired. Press akey such as Enter to see if the keyboard accepts your command.If you entered an incorre

If you are using version 4.01 of MS-DOS and you did not geta memory manager, you can use the MS-DOS programEMM386SYS to convert your extended memory t

NoteTo use graphic display drivers in 800 x 600 resolution, youmust have a multi-frequency monitor capable of displayingthese resolutions. Standard VG

Chapter 5Accessing Internal ComponentsYour computer is designed so you can easily install optionalequipment such as a disk drive, a math coprocessor,

Removing the CoverFollow these steps to remove the cover from your computer:1.2.3.4.Turn off the computer and then any peripheral devices(including th

Notice the icons under the screw:lockedunlockedscrew5.The cover is also secured by two latches on the back of thecover near the comers. Press both lat

7.Before you touch any of the components inside, touch theinside of the computer’s back panel, as shown below toground yourself and avoid an electric

Removing the SubassemblyIn order to install disk drives or access the jumpers or mathcoprocessor socket on your computer’s main system board, youneed

2.Remove the front panel from the computer by lifting upslightly on the three clips at the top of the panel and tiltingit toward you. Then set it asid

Software Problems...A-23Printer Problems...A-24Option Card Problems...

4.Raise the front of the subassembly to a slight angle.Use one of your hands to hold up the subassembly at anangle or have someone hold it up for you.

6.Still holding up the subassembly, reach further backunderneath it and disconnect the two power supply cablesconnected to the back right side of the

There are four corresponding tabs on the inside back panelof the computer; these tabs fit into the openings in thesubassembly slots.tabsAccessing Inte

2. Lift up the subassembly from your work surface and lowerthe back end into the computer, fitting the top tabs in thecomputer into the openings in th

Each connector has six pin holes and a large tab on one side,as shown below.large tabsThe one 12-pin power supply socket (shown below) on theright sid

4.Position power supply connector P4 so the large tab on theconnector faces the right side of the computer. Beginningwith the six pins toward the back

7.Determine which cable is the hard disk drive cable andwhich is the diskette drive cable.Both the diskette drive and hard disk drive sockets on thema

CautionIf you do not correctly align the holes with the pins, youcould severely damage your computer when you push inthe connector.9.NOW connect the h

12. To replace the front panel, fit the three ridged tabs on itsbottom edge into the three notches on the lower edge of thecomputer, as shown below.no

Replacing the CoverFollow these steps to replace the computer’s cover:1.Facing the back of the computer, hold the cover so that theside with three tab

Appendix DSpecificationsCPU and Memory...D-1Controllers...D-2Interfaces...

3.Lower the back of the cover onto the computer and pressdown firmly on all edges to form a tight seal.4.Turn the large screw on the back panel clockw

Chapter 6Installing and Removing OptionsYou can enhance the performance of your computer by adding avariety of options, including the following:CI Opt

A math coprocessor speeds up the numeric calculations yourcomputer performs when using certain application software. Ifyou purchase a math coprocessor

System board jumper settingsJumpernumberJ1J2JumpersettingFunctionA’Color monitor is installedBMonochrome monitor is installedA’Enables the built-in VG

Moving a JumperA jumper’s setting is determined by where the jumper is placedon the pins. The jumper either connects pin A and the middlepin (position

Installing an Option Cardslot 1Ikslot 2r:iY,”Ill4.i i: :: -5: ::::::*:II-I-Your computer has four standard option slots: three 16-bit slotsand one 8-b

Slot 1 is designed for an 8-bit option card and slots 2 through 4are designed for 16-bit cards. As you can see below, a 16-bit cardhas an extra connec

2.You do not need to remove the subassembly to install anoption card. If you install a display adapter card, you mayneed to change the settings of jum

5.Grip the card firmly by the top corners and position it at thetop of the slot, as shown below. Make sure the connectorpins point down and the compon

7.Secure the end of the card to the back of the computer withthe retaining screw.8.Follow the instructions in Chapter 5 to replace the cover.9.See “Po

IntroductionThe Epson® Equity®’ 386SX/20 PLUS is a high-performancepersonal computer which offers exceptional speed andconvenience in a compact design

4. If you are removing a display adapter card, you may need tochange the settings of jumpers J1 and J2. See page 6-2 forinstructions.5.Replace the cov

Installing Memory ModulesThere are six SIMM sockets on the main system board organizedin three banks consisting of two sockets each. Each socket canco

Follow these steps to install the memory modules:1.Remove the computer’s cover. See Chapter 5 forinstructions. (YOU do not need to remove the subassem

3.4.The sockets are labelled as shown below.nlU16 U17U20 U21U24 U25bank 0bank 1bank 2If an option card is blocking access to the SIMM sockets,follow t

5.TO insert the SIMM in the socket, place it on the right sideof the tabs at an angle, as show below.6.Gently push down on the SIMM and, at the same t

7.8.9.If the SIMM does not go in smoothly, do not force it; pull itall the way out and try again.Make sure the SIMM is fully inserted into the socket

3.If an option card is blocking access to the SIMM sockets,follow the steps on page 6-9 to remove it.4.Use your fingers or two small screwdrivers to p

As you pull away the tabs, the SIMM falls to the right at anangle.When the SIMM is at an angle, release the tabs andcarefully remove it from the socke

Installing a Math CoprocessorYour computer has a socket on the main system board toaccommodate an Intel 80387SX (20MHz) math coprocessor.A math coproc

0Continuous Edge Graphics™ (CEG™) technology (providedby Edsun™). The built-in CEG chip refines the jagged linesof images on a CRT screen by giving a

The math coprocessor socket is located on the front right side ofthe main system board, as shown below.math coprocessor socketIIIIIIIIEl clIfrontCaref

3. The math coprocessor socket is hollow and square. Theupper right comer of the socket is notched, as shown below.notched cornerThere is also a notch

4.5.6.Gently push the coprocessor into the socket, pressing evenlyon all sides of the coprocessor. If the coprocessor does not goin smoothly, do not f

Post-installation SetupAfter you install or remove a math coprocessor or memorymodules, you need to run the Setup program on your Referencediskette to

You may also want to test a newly-installed option. Someoptions come with their own diagnostics test programs, and youcan test others with the diagnos

Chapter 7Installing and Removing Disk DrivesThis chapter describes how to do the following:0Install a hard disk or diskette drive0Remove a hard disk o

CautionInstalling or removing a disk drive is a complicatedprocedure, so you may want to ask your dealer to do it for you.If you decide to do it yours

How to Use This ChapterThe instructions in this chapter describe how to install andremove optional Epson diskette and hard disk drives. All drivessold

0When you have finished accessing your drives, see theinstructions in Chapter 5 to replace the subassembly and thecomputer’s cover.Additional instruct

A master drive is the drive on which you’ll install the operatingsystem that the computer loads into its memory each time youturn it on. You can run a

Operating Systems and Other SoftwareYou may have a version of MS-DOS® to use with yourcomputer. Epson has enhanced MS-DOS by adding two time-saving ut

The following table lists the jumper settings for all the possiblehard disk drive configurations.Hard disk drive jumper settingsC/DDSPACTDrive configu

If one of your hard disk drives is already installed in thecomputer, follow the steps under “Removing a Hard Disk Fromthe Vertical Position,, on page

Removing the Mounting Frames From the DriveYour hard disk drive comes with 5 l/+inch mounting framesattached to each side of the hard disk drive, as s

2.Remove the four screws securing the mounting frames to thehard disk drive. There are two screws securing each frame, asshown below.mounting framescr

Removing and Attaching the Mounting PlateIf you are installing a new hard disk drive in your computer, youneed to attach a hard disk drive mounting pl

3.4.Turn your hard disk drive so the components are facing upand the connectors at the back of the drive are facing yourright.Place the flat side of t

5.Align the four holes on the mounting plate with the fourholes on the bottom of the hard disk drive.6.Locate the four screws that you removed from th

2.Locate the hard disk drive ribbon cable that came in the boxwith your computer. It is a flat, folded cable with threeconnectors. (If you are reinsta

The ribbon cable socket on the back of the drive has tworows of pins. In one of the rows, a pin is missing.ribbon cable socketmissing pin3. Align the

4. Locate one of the power supply cables that lead from thepower supply in the computer (behind the horizontal drivebays). The cables are labelled P1,

How to Use This ManualThis manual explains how to set up and operate yourcomputer, install options, and run diagnostics checks. Theillustrations show

5.Line up the connector with the socket so that the notchedcomers are aligned.notched cornersnotched cornersMake sure the holes fit over all the pins

6.Pick up the hard disk drive and hold it so the mountingplate is facing the subassembly, as shown below.tabsNotice that there are two tabs facing dow

7.Hold the subassembly up slightly as you lower the drive ontoit. Keep the cables to the right of the drive.bracketholeAs shown above, fit the tabs on

Attaching the Cable to the Bottom of the SubassemblyIf you are installing your first hard disk drive, follow these stepsto attach the drive cable to t

4.5.6.7.8.Wrap the tie wrap around the cable so that the mount is inbetween the cable and the subassembly, as shown below.Peel the backing off the mou

Removing a Hard Disk from the Vertical Position You need to remove the hard disk drive from the verticalposition in the following cases:The drive need

4.Disconnect the power supply connector and the ribboncable connector from the sockets on the back of the harddisk drive, as shown below. Firmly pull

7.8.9.Wrap the hard disk drive in its original packing materialsand set it aside along with the hard disk drive ribbon cable.Replace the subassembly i

Installing a Disk Drive in the Horizontal PositionBefore you perform the following steps, be sure that you have setthe jumpers on any hard disk drive(

2. There are two or three holes on each side of the disk drive.When you insert the drive, align the appropriate roundholes in the drive with the two o

Chapter 7 explains how to install and remove a hard disk ordiskette drive.Appendix A contains troubleshooting tips.Appendix B describes how to perform

4.After you align the drive, insert two screws into the ovalholes on each side of the drive bay and tighten them with ascrewdriver, as shown below.If

Locate the diskette drive ribbon cable; one end is connectedto the top diskette drive and the other end is free. Use theconnector in the middle of the

3.Make sure the cable connector fits properly onto the driveinterface and then push it onto the interface.CautionIf you do not correctly align the con

2.Next, locate the hard disk drive ribbon cable that came withyour computer. If you removed a drive from the verticalmounting position, the cable you

4.Align the ribbon cable connector with the socket on thehard disk drive. Make sure the row in the connector withthe blocked hole lines up with the ro

Connecting the power cablesFollow these steps to connect the power supply cable for either adiskette drive or a hard disk drive in the horizontal bay:

2.Position the power supply cable connector so that thenotched comers on the connector line up with the notchedcorners of the power supply socket on y

Removing a Disk Drive From the Horizontal PositionThe figures in this section show a diskette drive in the lowerhorizontal drive bay, but you can use

2.Remove the power supply connector from the back of thedrive.power supply3.Using a screwdriver, remove the screws securing the drive tothe drive bay.

4.Grasp the disk drive from the front of the drive bay, pull itcompletely out, and set it aside.5.If you have removed one hard disk drive and are leav

Chapter 1Setting Up Your SystemSetting up your Equity 386SX/20 PLUS personal computer iseasy. Just follow the eight steps in this chapter. As you set

Appendix ATroubleshootingYou should not encounter any difficulties as you set up and useyour computer, but if anything out of the ordinary happens, re

If you have a hard disk, follow these steps:1.At the MS-DOS command prompt, type ROMBIOS andpress Enter. (You may need to log onto the directory where

If the error is not serious, you see this prompt:(Resume = "F1" key)Write down the error message and code number, and then pressF1 to contin

Power-on diagnostics error codes and messages (continued)Error codeMessageMemory171BIOS shadow RAM error173Cache options error201Memory error202Memory

Power-on diagnostics error codes and messages (continued)IError codeMessageActionIAuxiliary device(s)8601Auxiliary device failure8602Auxiliary device

The Computer Does Not RespondIf your computer locks up and does not respond when you typeon the keyboard, follow these steps:1.2.3.4.5.6.Some operatio

7.If your computer still does not respond, you can reset it usingthe Ctrl Alt Del command. If that command doesn’t work,you can reset the computer wit

Password ProblemsIf you set a power-on password using the Setup program, youmust enter this password before you can use the system. Whenyou turn on th

4.If you do not know the current power-on password and youdo not want to set a new one, see “Removing a Password”below.5.If you do not know the curren

Disabling an existing passwordIf you do not know your power-on password and do not want toset a new one, follow these steps to disable the existingpas

Before you set up your computer, it’s important to choose a safe,convenient location that provides the following:0PPPP0A large, sturdy surface. The de

Disabling the password functionIf you do not want to use a power-on password anymore, you candisable the password function. However, if you want to us

5.Remove the Reference diskette, turn off the computer, andfollow the instructions under “Changing the JumperSettings” in Chapter 6 to enable the pass

NoteBe sure the keyboard plug is inserted into the keyboardsocket and not the mouse socket.See “Connecting the Keyboard” in Chapter 1 forinstruct ions

3.4.5.6.7.8.If the monitor’s power light still does not come on, checkthe electrical outlet for power. Turn off your monitor andunplug it from the wal

If you are using one or more display adapter cards, you mayneed to change the setting of jumper J1. This jumper tellsthe computer whether you are usin

2.3.4.You may have inserted the diskette upside-down or it mynot be inserted all the way. Remove the diskette from thedrive and reinsert it with the l

5.If your diskette is the right type for your drive, see if it iswrite-protected. On a 5 l/+inch diskette, there may be awrite-protect tab over the no

9.If you see no error messages but there is something wrongwith the data in a file, MS-DOS or an application programmay have updated the storage infor

3.If your diskette drive read/write heads are dirty, you mayoccasionally see this MS-DOS error message:Error Reading Drive d:Abort, Retry, or Fail?To

The problem could be the result of improper installation,incomplete disk preparation, or corrupted data. The suggestionsin this section are divided in

EPSON®EQUITY 386SX/20 PLUSUSER’S GUIDEX-EQ386-20PLUS

2Removing the Protector CardIf you have a 5 l/+inch diskette drive, there is a protector card inthe diskette slot. This card is inserted at the factor

3.4.5.If you installed a non-Epson hard disk drive, was itphysically formatted by the manufacturer? A blank, newhard disk must be formatted (or “initi

2.Partition the drive, format it for MS-DOS, and installMS-DOS. Step-by-step instructions for performing theseprocedures are provided in your MS-DOS I

Software ProblemsIf you are having trouble with an application program, try thefollowing solutions:1.If the application program does not start, check

Printer ProblemsBelow are some general steps to follow if you are havingdifficulty with your printer. If the problem persists and you needmore detaile

5.6.If it does not, you may need to change the internal setting ofthe computer’s parallel port for a parallel printer (or serialport for a serial prin

5.6.7.Did you install a hard disk drive that has its controller on anoption card? If so, and if your computer came with a harddisk drive that you are

Memory Module ProblemsIf you added extra memory to your system by installing SIMMsand that memory is not operating properly, check the following:1.If

CautionDo not attempt to remove the math coprocessor yourself.Contact your dealer for information about a specialextraction tool that is needed to rem

Appendix BPhysically Formatting a Hard DiskThis appendix describes how to physically format a hard disk.Sometimes called a low-level format, this proc

CautionIf you are unsure if formatting is necessary, contact yourEpson dealer for assistance.In addition to destroying all the data on the hard disk,f

3Connecting a MonitorThe procedure you use to connect your monitor to the computerdepends on the type of monitor you have. If you have a VGAmonitor (o

The formatting options work as follows:0Format first scans the disk (if it has no defective track table)for defective (bad) tracks and lets you decide

Formatting a New DiskMany hard disk drives come with a printed list of bad tracks butthe bad tracks are not flagged on the disk. You may need tomodify

Option 1, FormatIf you select1 -Format from the Hard Disk Format Menu,you see the following (for a disk that does not have a defectivetrack table):For

For an Epson hard disk drive, it is best to accept therecommended skewed sector (also called the interleave factor)of 1. For other hard disk drives, y

The program now allows you to edit the defective track table:ICylinder HeadCylinder Head Cylinder HeadCylinder HeadCylinder HeadDefective Track Table:

2.Type the number of the cylinder containing the bad trackand press Enter. You see this prompt:Enter head number (0 -nn):3. Type the head number for t

Formatting the DiskWhen you are ready to start formatting the disk, you see thefollowing warning:WARNING!ALL DATA WILL BE DESTROYED INALL PARTITIONS O

You see the head and cylinder numbers decrease as the programprogresses. When formatting is complete, the program flags anybad tracks and you see a se

To start this test, select 2-Destructive Surfaceanalysis from the Hard Disk Format Menu. You see thesemessages:Analyze Hard Disk<Drive 1:>Read/S

To flag the error tracks as bad, select Y. YOU see a list of thetracks as they are flagged and these messages:Flagging bad tracks...Cylinder is 237, h

4.Examine the connector end of the monitor cable, andposition the plug to match the orientation of the monitorinterface (marked with a monitor icon).

If the program finds errors, the screen displays a table of thetracks that gave errors, similar to the one the Destructive surfaceanalysis displays.Af

Appendix CPerforming System DiagnosticsThis appendix describes how to check the operation of the mainunit and peripheral devices of your computer. You

Starting System DiagnosticsTo run the System diagnostics program, you must turn on orreset your computer with the Reference diskette in drive A. Ifyou

If the list correctly describes your system, make sure Y ishighlighted and press Enter. If a device is missing from this list,or if you want to change

Selecting an OptionWhen you are using the System diagnostics program, you oftenneed to select an option from a menu. There are two ways to dothis:0You

Modifying the Device ListIf an installed device is missing from the Device List, you mustadd it to the list and test it carefully. At the following pr

To remove a device from the list, select 2 (Delete device). Thescreen displays the current Device List.Select the item you wish to delete. You can del

You can specify that the test be performed one time only or anynumber of times in the range from 1 to 9999. Running a testmultiple times is for reliab

Resuming From an ErrorIf an error occurs during a test, the test stops at that point, andan error code and error message appear. If you want to record

The table below lists the tests you can run on the system’sinternal devices and on any optional devices you have installed.You may not see all of the

6.If necessary, plug the monitor power cord into the monitor’spower inlet, as shown below.. QII J,II I-7.Plug the other end of the power cord into an

Error Codes and MessagesThe following table lists all the error codes and messages thatmay appear during system diagnostics testing.system diagnostics

System diagnostics tests (continued)DeviceDot-matrixTests availableDescriptionTests theoperation of adot-matrix printerin several modes;requires thepr

DeviceColor graphicsadapter and CRTTests availableAdapter checkAttribute checkCharacter set checkGraphics mode checkScreen paging checkLight pen check

System diagnostics error codes and messages (continued)Error code MessageMonochrome display adapter and CRT401ERROR IN ADAPTER CHECK403ERROR IN ATTRIB

Error codeMessageParallel port (printer interface)901ERROR PIN pSerial port (RS-232C port)1101control signal ALWAYS LOW1101control signal ALWAYS HIGH1

Appendix DSpecificationsCPU and MemoryCPUSystem memoryROMShadow RAMCache controllerCache RAMMath coprocessor(optional)Clock/calendar80386SX microproce

ControllersDisketteHard diskInterfacesMonitorSerialParallelMouse portKeyboardOption slotsSupports up to two drives in any of fourformats: 5 ‘/4-&h

SpeakerInternal; operation controllable bysoftwarePower Supply140W, f&cooled, automatic (worldwide)input voltage sensingInput ranges98 to 132 VAC

Hard disk drives3 ‘/r4nch form factor hard disk drive(s);up to half-height size; first drive mountedvertically, second mounted horizontallyKeyboardLay

Physical CharacteristicsWidth15 inches (374 mm)Depth16.75 inches (419 mm)Height6 inches (151 mm)Weight(withoutkeyboard)Single diskette drive model:20.

Using a Display Adapter CardIf you are using a non-VGA monitor, you’ll need to install adisplay adapter (video) card in one of the computer’s optionsl

GlossaryAddressA number or name that identifies the location whereinformation is stored in a computer’s memory.Analog monitorA monitor that generates,

Automatic speedThe feature that enables the computer to switch automaticallyfrom high speed (20 MHz) to low speed (simulated 8 MHz)when accessing a di

A sequence or group of eight bits that represents one character.Cache memoryA high-speed type of memory buffer that stores information frombase or ext

Command promptThe symbol or message that tells you MS-DOS is loaded andready to receive instructions. The default command promptdisplays the current d

CPUCentral Processing Unit. The primary unit of the computer thatinterprets instructions, performs the tasks you indicate, keepstrack of stored data,

DeviceA piece of equipment that is part of a computer system andperforms a specific task, such as a disk drive, a monitor, or aprinter.Device driverA

DisketteA flat piece of flexible plastic coated with magnetic materialused to store data permanently. Available in either 3 $-inch or5 l/,-inch format

Expanded memoryMemory that specially written MS-DOS application programscan use with an Expanded Memory Specification (EMS) devicedriver such as EMM38

GraphicsLines, angles, curves, and other nonalphanumeric data.Hard diskThe enclosed unit used to store large amounts of data. Unlike adiskette, it is

Interleave factorThe number of physical sectors on a disk drive that thecomputer skips when reading consecutive logical sectors thesame track. An inte

NoteIf you install an EGA or VGA display adapter card or if youinstall another type of card that you want to be the primarydisplay adapter, you must s

MCGAMulti-Color Graphics Array. This mode provides CGAcompatibility as well as two-color 640 x 480 and 256-color320x200 modes.MDAMonochrome Display Ad

MGAMulti-mode Graphics Adapter. A type of display adapter cardthat can display monochrome text and color graphics on thescreen.MicroprocessorA small v

Multi-frequency monitorA monitor that allows variable horizontal and vertical syncfrequencies. This type of monitor supports a large range of videodis

Option cardA circuit board you install inside the computer to provideadditional capabilities, such as a modem.ParallelThe type of interface that trans

PortA physical input/output socket on a computer where you canconnect a peripheral device.Power-on diagnosticsTests that the computer runs to check it

ReadTo move data from one area to another. For example, when youopen a text file stored on disk, the computer reads the data fromthe disk and displays

RS-232CA widely used, standard type of serial interface. You can easilyconnect an RS-232C compatible device to the built-in port onyour computer.Secto

Super VGA modeSpecial features of the built-in VGA adapter available when youare using certain display drivers and a multi-frequency monitor.These fea

Video cardA display adapter card that can be installed in one of thecomputer’s option slots to provide a monitor interface. Yourcomputer comes with a

IndexAAFDD program, 3-2, 4-7-9Alternate parallel port check,C-11Alternate serial port check, C-10Analog monitor, 4-12AUTOEXEC.BAT, 1-14,2-30,4-l-2Auto

Once you have the correct printer cable, follow these steps:1.Place the printer next to the computer with the back panelsof both components facing you

Copyingdiskettes, 3-14, 3-21files, 3-2, 3-21-23Coprocessor, see Math coprocessorCopy-protected programs, 4-3Cover,removing, 5-24replacing, 5-1617CPU,

Environmental requirements, D-4Epson Consumer InformationCenter number, Intro-5, A-1Error codes and messages, 2-4-5,A-2-5, C-12-14ESPEED program, 3-2,

KKeyboard,adjusting angle, 1-13cable, 1-12check, C-9connecting, 1-12-13controller check, A-2interface, D-2layout, 3-3, D-4problems, A- 12-13repeat rat

NNetwork server, 4-9 -11Network server mode, 2-9-11,3-7, 4-9 -11Non-destructive surface analysis,B-2-3, B-12-13Non-interlaced mode, 4-12, A-1Num lock,

RRAM check, A-2Random access memory (RAM),Intro-l, 2-1,3-18, A-2Read only memory (ROM), Intro-l,A-2, D-1Read/write heads, 3-12, 3-23 -24Read/write slo

TTIME, 2-16Time, setting, 2-16-18Timer check, A-2Tracks, 3-10 -13Troubleshooting, A-1 -28TURBO light, 4-2Turning off computer, 1-18Turning on computer

EQUITY 386SX/20 PLUSU s e r’s G u i d e

hard disk access lightdiskette drivediskette release latchTURBO speed lightpower lightRESET buttonhard disk ordiskette drive baykeyboard cable sockets

j EPSON Overseas Marketing LocationsEPSON America, Inc.EPSON Deutschland GmbH20770 Madrona AvenueTorrance, CA 90503, U.S.A.Phone:(2 13)782-0770Zulpich

Epson America, Inc.20770 Madrona Avenue, Torrance, CA 90503

3.Connect the other end of the cable to the printer, as shownbelow. TO secure the cable, squeeze the clips at each side ofthe printer port and push th

Using the Serial InterfaceIf you have a printer, a modem, or other peripheral with a serialinterface, you can connect it to the serial (RS-232C) port

5Connecting the KeyboardFollow these steps to connect the keyboard:1.Hold the keyboard cable connector so the arrow indicatoron the housing faces up.

FCC COMPLIANCE STATEMENT FOR AMERICAN USERSThis equipment has been tested and found to comply with the limits for a class B digitaldevice, pursuant to

2.You can raise the keyboard by adjusting the legs on thebottom. To change the angle of the keyboard, turn it overand flip each leg upward until it lo

/mouse connectorCautionAlthough the mouse and keyboard connectors are physicallyidentical, they cannot be used interchangeably. Be sure toinsert the m

7Connecting the Power CordFollow these steps to connect the power cord:1.Plug the power cord into the AC power inlet on the backpanel, as shown below.

8Turning On the ComputerAfter you set up your system, you’re ready to turn on the power.But first, read the following safety rules to avoid accidental

3.Turn on the monitor, printer, and any other peripheraldevices connected to the computer.4.To turn on the computer, press the power button located on

When the system has successfully completed its self test, you seea prompt to insert a system diskette. (Do not insert a diskette atthis point.)If nece

Chapter 2Running the Setup ProgramThe first time you use your Equity 386SX/20 PLUS, you need torun the Setup program on the Reference diskette to defi

Automatic ConfigurationThe Equity 386SX/20 PLUS automatically defines your system’smemory configuration and recognizes a math coprocessor, if youhave

Slide the diskette into the drive until it is in all the way.Then turn the latch down to lock it in a vertical position.(For more instructions on inse

Continuing From an Error MessageIf your computer has never been set up, you may see an errormessage and prompt(s), such as the following:162 -System o

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

2.Be sure Y is highlighted and press Enter. The Setup programchanges the setting that caused the error to a setting that ismore likely to match your c

NoteIf the arrow keys on the numeric keypad do not appear towork, num lock mode may be enabled (turned on). If theNum Lock indicator in the upper righ

1.At the main Setup menu, highlight Display. A submenuappears identifying the current display adapter type, such asthe following:VGAIf the display ada

00D0If you have a composite color monitor, such as a colortelevision with a video input, try selecting CGA80Column. If the resulting resolution is poo

Setting the Power-on PasswordA power-on password is a feature that lets you control who canaccess your system. However, you do not need to set a power

NoteIf a password already exists, this message appears:Power-on password already installedThe Setup program does not allow you to enter a newpassword

7.You must set a power-on password to turn on network servermode. If you did not yet enter a password, this messageappears:Set a power-on password fir

To check or change the memory cache setting, follow thesesteps:1.2.3.4.At the main Setup menu, highlight Cache memory.The current status appears:Cache

When you set the processor to change speed automaticaly, thecomputer switches to low whenever it needs to access a diskettedrive and runs at high for

4.Use ?+ or A to highlight the speed you want and press Enter.5. Highlight* * SAVE SETTING ** and press Enterto return to the main Setup menu.Setting

IMPORTANT SAFETY INSTRUCTIONS1.Read all of these instructions and save them for later reference.2.Follow all warnings and instructions marked on the p

NoteIf you are using the keyboard that came with your computer(or another IBM AT compatible keyboard), the default forthe initial num lock setting is

5.TO change the keyboard repeat rate, highlightKB repeatrate. YOU see the following option menu:SlowNormalFast6.Press Enter to move the cursor block i

Follow these steps to set the real-time clock:1. At the main menu, highlight Real-time clock. Ifthe time and date have been set previously, the curren

You can use the backspace key to make corrections. Whenthe time is correct, press Enter. If you enter an invalidtime-for example, a number greater tha

Setting the Hard Disk Drive ConfigurationIf your computer came with a factory-installed hard disk, yourhard disk configuration has already been set an

2.Press Enter. You see a menu such as the following:(*::z,:qDrive 1:Type 60Number of cylinders776Number of heads8Number of sectors 33Precomp. cylinder

If your hard disk does not match one of the drive types listedin the Hard Disk Drive Types table, go to step 7.6.Highlight Type and press Enter. The c

The information for Number of cylinders isautomatically updated on the submenu above and you seethe next parameter, Number of he ads. Enter thecorrect

Hard Disk Drive TypesThe following table lists the types of hard disk drives you can usein your computer. Check this table and the documentationsuppli

Hard disk drive types (continued)Type no.303132414243444546474849505152535455565758596061626364-255CylindersHeadsST-506ST-506ST-5066117321023ESDI10225

11. Never push objects of any kind into this product through cabinetslots, as they may touch dangerous voltage points or short outparts that could res

Setting the Diskette Drive Type(s)Your Equity 386SX/20 PLUS probably came with one factory-installed diskette drive. If you added a second diskette dr

4.Use J or T to highlight the correct capacity for your diskettedrive and press Enter. The screen displays the type youselected.If you want to enter t

Follow these steps to change your built-in serial and parallelinterface settings:1. At the main menu,highlight Serial/Parallel. Thecurrent settings fo

If you want to change the setting for the other port, returnto step 3.5.When the serial and parallel port settings are correct,highlight *** SAVE SETT

There are two more Setup summary screens you need to check.TO display the next screen, press PgDn. You see the following:Real-time clockTime13:40:38Da

Check each Setup summary screen to see if all the information iscorrect. YOU can press PgUp to display the previous screen orPgDn to display the next

If the computer displays an error message while it is starting up,run the Setup program again and check the setting the errormessage indicates. If the

Chapter 3Using Your ComputerThis chapter briefly describes the following procedures for usingyour computer:0Installing MS-DOS or another operating sys

Copying the Reference Diskette FilesIf you have a hard disk, you’ll probably want to copy some of thefiles on your Reference diskette to the hard disk

Special Keys on the KeyboardCertain keys on your keyboard serve special functions whenyour computer is running MS-DOS or application programs.The keyb

ContentsIntroductionOptional Equipment...2Operating Systems and Other Software...3VGA Utilities...

Key functions (continued)KeyAltPurposeWorks with other keys to enter alternatecharacter codes or functions.t BackspaceMoves the cursor back one space,

Stopping a Command or ProgramYou may sometimes need to stop a command or program whileit is running. Many programs provide a command you can useto can

CautionDo not reset the computer as a means to exit a program.Some programs classify and store new data when you exit aprogram in the normal manner. I

Using a Power-on PasswordIf you set a power-on password when you ran the Setup program,you must enter it every time you turn on the computer or presst

NoteIf you do not know the correct password, see “PasswordProblems” in Appendix A.Changing a Power-on PasswordTo change your power-on password, follow

Next time you turn on the computer or press RESET, use thenew password.Deleting a Power-on PasswordTo delete your power-on password, follow these step

Using Disks and Disk DrivesThe disk drives in your computer allow you to store data on disk,and then retrieve and use your stored data. This section e

A disk is further divided by sectors, which are similar in shape topie slices. The figure below provides a simple representation oftracks and sectors.

Your computer uses the read/write heads in a disk drive to storeand retrieve data on a disk. To write to a disk, the computerspins it in the drive to

cla360KB drive-Use S1/+inch, doubleaided, double-density,48 TPI, 360KB diskettes. (YOU can also use single-sided,160KB or 180KB diskettes.) These disk

Setting the Display Adapter Type...2-6Setting the Power-on Password...2-9Setting the Memory Caching...

3 ‘/shah drive/diskette compatibilityDrive typeDiskette types it can read from and write to720KB720KB1.44MB1.44MB, 720KBBecause of these incompatibili

ClKeep diskettes away from dust and dirt. Small particles ofdust or dirt can scratch the magnetic surface, destroy data,and ruin the read/write heads

Write-protecting DiskettesYou can write-protect a diskette to prevent its data from beingaltered. When a diskette is write-protected, you can read it

On a 3%~inch diskette, the write-protect device is a smallswitch on the back of the diskette in the lower right comer,shown below. TO write-protect a

Using a Single Diskette Drive SystemMS-DOS expects the computer to have at least two diskettedrives and displays prompts and messages accordingly. Usu

You can load MS-DOS from an application program disketteif that diskette contains the operating system. See yourMS-DOS Reference Manual for informatio

If you have a 3 i/z-inch diskette drive, insert the diskette withthe label facing up and the metal shutter leading into the driveas shown in the follo

Formatting DiskettesBefore you can store data on a new diskette, you must format itusing the FORMAT command. Formatting prepares the disketteso that M

0You can use the BACKUP command to back up hard diskfiles to diskettes. Because BACKUP can split large filesacross two or more diskettes, it makes mor

Backing up the hard diskWhile the hard disk is very reliable, it is essential to back upyour hard disk files to diskettes in case you lose some dataac

Chapter 4Enhancing System OperationsUsing AUTOEXEC.BAT and Other Batch Files...4-1Changing the Processor Speed...4-2Ente

Many hard disk drives, including all Epson drives, automaticallypark their heads when you turn off the computer. If your harddisk drive does not do th

Chapter 4Enhancing System OperationsThis chapter tells you how to use the following procedures toenhance the operation of your computer:Using AUTOEXEC

One batch file that you may find particularly useful is calledAUTOEXEC.BAT. Every time you turn on your computer,MS-DOS looks for the AUTOEXEC.BAT fil

Some copy-protected programs require the computer to run atlow speed while accessing the program on a diskette. Theseprograms also usually require you

If you frequently use programs that require the processor tooperate at low speed or require the automatic speed changewhen your computer is accessing

To enter these commands, hold down the Ctrl key and theAlt key and press the +, -,or * key located on the numeric keypad.The speed setting remains in

The message tells you the switches you should use to set thespeed to high, low, or automatic speed. At the MS-DOS prompt,type the ESPEED command again

See your MS-DOS Reference Manual for instructions oncreating and using batch files.Reassigning the Diskette DrivesIf your system has two diskette driv

Using the AFDD ProgramThe AFDD program reverses the current diskette driveassignments and resets the system. When you are done using thereversed drive

If you are running the AFDD program from a hard disk, you canreassign the drives and reset the computer automatically. Typethe following command and p