Page 2 FCC COMPLIANCE STATEMENT FOR AMERICAN USERS This equipment has been tested and found to comply with the limits for a class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio or television reception.
Page 3 EPSON® User’s Guide...
Page 4 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: Important Safety Instructions
Important Safety Instructions Read all of these instructions and save them for later reference. Follow all warnings and instructions marked on the product. Unplug this product from the wall outlet before cleaning. Use a damp cloth for cleaning, not liquid cleaners or aerosol cleaners. Do not use this product near water.
Page 6 12. Except as specifically explained in the User’s Guide, do not attempt to service this product yourself. Refer all servicing to qualified service personnel. 13. Unplug this product from the wall outlet and refer servicing to qualified service personnel under the following conditions: A.
Page 7 Importantes Mesures de S&wit6...
Page 9: Table Of Contents
Contents Introduction Optional Equipment Operating Systems and Other Software VGA Utilities ......How to Use This Manual .
Page 10 Setting the Display Adapter Type Setting the Power-on Password ..Setting the Extended Memory Caching Setting the Processor Speed ..Setting the Keyboard and Speaker Options . Setting the Real-time Clock .
Page 11 Using Expanded Memory Beyond 640KB ... . Using Special VGA Features ....Chapter 5 Accessing Internal Components Special Precautions...
Page 12 Installing a Drive ......Connecting the Cables ..... Appendix A Physically Formatting a Hard Disk Choosing the Type of Format .
Page 13 Printer Problems ......Option Card Problems ..... . . Mouse Problems .
Page 14: Introduction
Introduction You’ve chosen a powerful, versatile Epson@ computer, ideally suited for use in a network or as a high-performance personal workstation. Whether you have the 25 MHz model or the 50 MHz model (with built-in math coprocessor), your system includes 4MB of internal memory, a built-in VGA display adapter, built-in parallel and serial interfaces, and an IBM®...
Page 15: Optional Equipment
80486SX microprocessor chip replaced with an 80487SX, 25 MHz chip. This optional microprocessor includes a built-in math coprocessor. Check with your authorized Epson dealer for information on optional equipment. Operating Systems and Other Software You probably chose a version of MS-DOS@ to use with your computer.
Page 16: Vga Utilities
VGA Utilities Epson has included special VGA device drivers and utilities for use with your built-in VGA adapter. With these utilities, you can take advantage of extended VGA features such as 16-color graphics mode resolutions up to 1024 x 768 (non-interlaced), 256-color resolutions up to 640 x 480, and 132-column text mode.
Page 17 Chapter 6 describes some of the options you can use in your computer and contains instructions for setting jumpers and installing various options. Chapter 7 explains how to install and remove disk drives. Appendix A describes how to perform a low-level format on a hard disk.
Page 18: Where To Get Help
Where to Get Help If you purchased your Epson product in the United States, Epson America provides local customer support and service through a nationwide network of authorized Epson dealers and Service Centers. Epson also provides the following support services through the...
Page 19: Setting Up Your System
Chapter 1 Setting Up Your System Setting up your Epson personal computer is easy. Just follow the eight steps in this chapter. You may want to leave this manual’s back cover foldout open so you can refer to the illustrations identifying the different parts.
Page 20 Before you set up your computer, it’s important to choose a safe, convenient location that provides the following: A sturdy desk or table strong enough to support the weight of your system and all of its components. A flat, hard surface. Soft surfaces like beds and carpeted floors attract static electricity, which can erase data on your disks, damage the computer’s circuitry, and prevent proper ventilation.
Page 21: Removing The Protector Card
Removing the Protector Card If you have a 544inch diskette drive, a protector card has been inserted in the diskette slot at the factory to protect the drive’s read/write heads. To remove it, either flip up the latch or press the release button to pop the card out part way.
Page 22: Using The Vga Interface
Using the VGA Interface Follow these steps to connect your VGA monitor to the VGA port on the computer: 1. Make sure your monitor and computer are turned off. 2. Place your monitor on top of or near the computer. For easy access, turn the monitor and computer around so the backs of both components are facing you.
Page 23 Caution To avoid damaging the connector, take care not to bend the pins when you insert the plug. 5. If the connector has retaining screws, be sure to tighten them. 6. Plug the monitor power cord into the monitor’s power inlet, as shown below.
Page 24: Using A Display Adapter Card
Using a Display Adapter Card If you are using a non-VGA monitor, you’ll need to install a display adapter (video) card in one of the computer’s option slots before you have already installed the video card for you.) If the video card is not installed, follow the instructions in Chapter 6 to install an option card.
Page 25: Connecting A Printer Or Other Device
Your computer has both parallel and serial interfaces. To connect a printer or other peripheral device to one of these interfaces, follow the instructions below. Epson offers a full range of printers; ask your dealer for more information. Using the Parallel Interface The parallel interface on your computer is Centronics®...
Page 26 3. One end of the printer cable has a 25-pin, D-shell connector. Position the plug to match the orientation of the parallel port (marked with a special icon); then insert it into the port, as shown below. If the plug has retaining screws, be sure to tighten them.
Page 27: Using The Serial Interface
5. Plug the printer’s power cord into a properly grounded (earthed) electrical outlet. Using the Serial Interface If you have a printer, a modem, or other peripheral device with a serial interface, you can connect it to the serial (RS-232C) port on the back of the computer.
Page 28: Connecting The Keyboard
Connecting the Keyboard Follow these steps to connect the keyboard: 1. Make sure the computer is turned off. 2. Hold the keyboard cable connector so the arrow indicator on the housing faces up. Insert the connector into the port marked with the keyboard icon, as shown below. Caution Although the connectors and ports for the keyboard and mouse are physically identical, they cannot be used...
Page 29: Connecting The Mouse
3. You can raise the keyboard by adjusting the legs on the bottom. To change the angle of the keyboard, turn it over and flip each leg upward until it locks into place, as shown below. If you want to lower the keyboard, press down on the recessed tab (labelled L or R) and lower the leg into the slot.
Page 30 Follow these steps to connect a mouse: 1. Make sure the computer is turned off. 2. Hold the mouse connector so it is oriented properly with its port (marked with a mouse icon). Insert the connector as shown below. interchangeably. Be sure to plug the mouse only into the 3.
Page 31: Connecting The Power Cord
7 Connecting the Power Cord Follow these steps to connect the power cord: 1. Plug the power cord into the AC power inlet on the back panel, as shown below. WARNING To avoid an electric shock, be sure to plug the cord into the computer before plugging it into the electrical outlet.
Page 32: Turning On The Computer
Turning On the Computer After you set up your system, you’re ready to turn on the power. But first, read the following safety rules to avoid accidentally damaging your computer or injuring yourself: Do not connect or disconnect any peripheral device or power cables when the computer’s power is on.
Page 33 4. To turn on the computer, press the power button located on the right side of the front panel, as shown below. The power indicator below the button lights up. After a few seconds, the computer starts to perform a diagnostic self test- a series of checks it completes each time you turn it on to make sure everything is working correctly.
Page 34: Turning Off The Computer
Turning Off the Computer When you are ready to turn off your system, reverse the sequence of steps you followed to turn it on. Turn off the computer first, then turn off the monitor and any peripheral devices. Now go on to Chapter 2 and follow the instructions to run the Setup program.
Page 35: Running The Setup Program
Chapter 2 Running the Setup Program The first time you use your computer, you need to run the Setup program on the Reference diskette to define the computer’s configuration. You may also need to run it again later, if you change the configuration. The Setup program automatically configures parts of your system and lets you set (or change) the following for your computer:...
Page 36: Automatic Configuration
Automatic Configuration Your computer automatically defines your system’s memory configuration and recognizes whether the CPU chip contains a math coprocessor. It also detects and configures most of the devices you have installed in your system. For this reason, you may not need to change any of the default settings in the Setup program.
Page 37 3. Turn on your system. (Remember to turn on your monitor and any peripheral devices before you turn on the computer.) The screen displays the Operation Menu: OPERATION MENU 1 - Setup - Format hard disk System diagnostics - Prepare hard disk for moving 0 - Exit to DOS for more utilities If an error message appears when you turn on the computer, see “Continuing From an Error Message,”...
Page 38: Continuing From An Error Message
Continuing From an Error Message If your computer has never been set up, you may see an error message, such as the following: 162 - System options not set (Run SETUP in REFERENCE DISK) (Resume = "F1" key) If you see an error message like this one, follow these steps: 1.
Page 39 2. Be sure is highlighted and press IEnter The Setup program changes the setting that caused the error to one that is more likely to match your configuration. The screen displays the main Setup menu: You should check all the settings in the Setup program to make sure they are correct for your system.
Page 40: Moving The Cursor Block
Moving the Cursor Block Use 1 and 1‘ to move the cursor block (the highlighted bar) through the options on the main Setup menu. After you highlight the option you want, press [Enter to select it. Note If the arrow keys on the numeric keypad do not appear to work, num lock mode may be enabled (turned on).
Page 41 Note If you have installed an EGA or VGA display adapter card, or another type of card that you want to be the primary display adapter, you must set jumper JP4 on the main system board to disable the built-in VGA interface. If you have installed one or more video cards, you also may need to set jumper JP6 to tell the computer the type of monitor you are using: either monochrome or color.
Page 42 3. Press m to move the cursor block into this submenu and then use I’ or 1 to highlight the option that matches your display adapter type. If you are not sure which one to choose, follow these guidelines: tl If you are using the built-in VGA adapter or have installed a VGA, EGA, or MCGA card, select EGA, MCGA,VGA or other.
Page 43: Setting The Power-On Password
4. After you highlight the appropriate display adapter type, press IEnter The screen displays your new setting. 5. Highlight *** SAVE SETTING *** and press CEnter] to return to the main Setup menu. Setting the Power-on Password A power-on password is an optional feature that lets you control who can access your system.
Page 44 Note If a password already exists, this message appears: Power-on password already installed The Setup program does not allow you to enter a new password if you have already set one. However, you can easily change or delete the current password if you know it.
Page 45: Setting The Extended Memory Caching
6. If you want to change the network server mode setting, highlight Network server mode. To turn network server mode on or off, press w). You must set a power-on password to turn on network server mode. If you did not yet enter a password, this message appears: Set a power-on password first To enter a password, highlight Power-on password and...
Page 46 Your computer automatically enables memory caching for the 640KB of base memory. For the memory above 1MB, the Setup program allows you to turn extended memory caching on or off. The default setting is on for all the extended memory currently installed in your system from 1MB up to the maximum.
Page 47: Setting The Processor Speed
2. To change the setting, press m. The cursor block moves to 3. Press m again. The cursor block moves to the first range in the cache table. To change the setting for the first range from 4. If you installed memory above 4MB, press + three times to move the cursor block to the 4MB to 5MB range.
Page 48 You can also set the processor to change its speed automatically. This enables the computer to switch to low speed whenever it needs to access a diskette drive, but run at high speed for all other operations. Note You may not want to use the automatic setting for certain copy-protected programs.
Page 49: Setting The Keyboard And Speaker Options
3. Press [Enter] to move the cursor block into the option menu. 4. Use ? or 1 to highlight the speed you want and press IEnter 5. Highlight ** SAVE SETTING ** and press m to return to the main Setup menu. Setting the Keyboard and Speaker Options The Keyboard/Sound option lets you control these three features:...
Page 50 Note If you are using the keyboard that came with your computer (or another IBM AT compatible keyboard), the default setting for the initial num lock setting is ON. If you are using a keyboard that has 83 or 84 keys, the initial num lock default setting is OFF.
Page 51: Setting The Real-Time Clock
5. To change the keyboard repeat rate, highlight KB repeat rate. You see the following option menu: Slow Normal F a s t 6. Press m to move the cursor block into the menu. 7. Use ? or 1 to highlight the speed you want and press IEnter 8.
Page 52 Follow these steps to set the real-time clock: 1. At the main menu, highlight Real-time clock. If the time and date have been previously set, the current settings appear: Time Date If the time and date are correct, you can skip the rest of this section.
Page 53 You can use the backspace key to make corrections. When the time is correct, press [Enter. If you enter an invalid time-for example, a number greater than 23 for the hours or greater than 59 for the minutes or seconds-the computer ignores your entry.
Page 54: Setting The Hard Disk Drive Configuration
Setting the Hard Disk Drive Configuration If your computer came with a factory-installed hard disk, your hard disk configuration has already been set and you can skip this section. If you installed or removed a hard disk, follow these steps to set the computer’s hard disk configuration: 1.
Page 55 2. Press IEnter You see a menu such as the following: Drive Number of cylinders Nunher of heads Number of sectors Precomp. cylinder Landing zone Total capacity (MB) The menu lists the settings you can change for each drive: the number of cylinders, the number of read/write heads, the number of sectors, the precompensation cylinder, and the landing zone (the cylinder on which you park the heads when moving the computer).
Page 56 5. If you have disconnected the drive or if the drive does not exist, highlight None and press [Enter. All the drive settings revert to 0. Go to step 8. If your hard disk matches one of the drive types listed in the Hard disk drive types table, go to step 6.
Page 57 7. If your hard disk does not match one of the drive types listed in the Hard disk drive types table, highlight User defined and press [Enter. You see the following: Number of cylinders The same parameter is highlighted on the submenu above. Enter the correct number of cylinders and press IEnter The information for Number of cylinders is automatically updated on the submenu above and you see...
Page 58: Hard Disk Drive Types
Hard Disk Drive Types The following table lists the types of hard disk drives you can use in your computer. Check this table and the documentation supplied with your hard disk to find the correct type number for the hard disk drive(s) installed in your computer. Hard disk drive types 2-24 Running the Setup Program...
Page 59 Hard disk drive types (continued) Running the Setup Program 2-25...
Page 60 Hard disk drive types (continued) Supported in translate mode. * With Western Digital ESDI controller. 2-26 Running the Setup Program...
Page 61: Setting The Diskette Drive Type(S)
Setting the Diskette Drive Type(s) Your system probably came with one factory-installed diskette drive. If you added a second diskette drive or removed one, you may need to change the diskette drive settings to match your configuration. If you haven’t made any changes, you can verify your drive type settings.
Page 62: Setting The Serial/Parallel Interfaces
selected. If you want to enter the type for another diskette drive, return to step 3. 5. When the diskette drive settings are correct, highlight ** SAVE SETTINGS * * and press I. The cursor block returns to the main Setup menu and you see the updated information for drives A and B.
Page 63 Follow these steps to change your built-in serial and parallel interface settings: At the main menu, highlight Serial/Parallel. The current settings for each port appear: S e r i a l P a r a l l e l Press m to move the cursor block into the submenu. You see this additional option menu: Disabled Primary...
Page 64: Reviewing Your Settings
If you want to change the setting for the other port, return to step 3. 5. When the serial and parallel port settings are correct, highlight ** * The cursor block returns to the main Setup menu and you see your updated serial and parallel interface settings. Reviewing Your Settings When you finish using the Setup program to define your computer’s configuration, use ? to highlight...
Page 65 There are two more Setup summary screens you need to check. To display the next screen, press m. You see the following: Real-time clock Diskette drive Speaker Initial num lock Keyboard repeat rate Serial Parallel If you have never set the real-time clock, the entry at the top of the screen flashes to remind you to set the time and date.
Page 66: Leaving The Setup Menu
To view the last Setup summary screen, press m. You see your hard disk drive configuration(s): Hard disk drive Drive 1: Number of cylinders Number of heads Number Precomp. cylinder Landing zone Total capacity (MB) Check each Setup summary screen to see if all the information is correct.
Page 67 If you want to save the settings you entered, highlight ** EXIT AND S VE ** and press m at a Setup summary screen. The Setup program stores the new settings and resets the computer using the new configuration. If you have set a password, you need to enter it at the key prompt.
Page 68: Using Your Computer
Chapter 3 Using Your Computer This chapter briefly describes the following procedures for using your computer: Q Installing MS-DOS or another operating system CI Copying the Reference and Utility diskette files tl Locking the computer’s cover Cl Using special keys on the keyboard CI Stopping a command or program tl Resetting the computer tl Using a power-on password...
Page 69: Copying The Reference And Utility Files
Copying the Reference and Utility Files If you have a hard disk, you’ll probably want to copy some of the files on your Reference and Utility diskettes to the hard disk for convenience. This allows you to run the programs any time without having to insert a diskette.
Page 70: Locking The Computer's Cover
Locking the Computer’s Cover You can lock the cover onto the computer to prevent unauthorized users from accessing its internal components. To lock the cover, insert the key as shown on the left and turn it clockwise. To unlock the cover, insert the key as shown on the right and turn it counterclockwise.
Page 71 The [=I, [G), and [ZLoekl] keys work the key once to turn on a function and again to turn it off. When the function is enabled, the corresponding light in the upper right corner of the keyboard is on. Using Your Computer Purpose Works with other keys to perform special (control)
Page 72: Stopping A Command Or Program
Stopping a Command or Program You may sometimes need to stop a command or program while it is running. If you have entered an MS-DOS command that you want to stop, try one of the following commands: Hold down the m key and press [cl. D Hold down the [ key and press w.
Page 73: Using A Power-On Password
To reset the computer, the operating system must be either on the hard disk or on a diskette in drive A; so if you do not have a hard disk, insert the system diskette in drive A. There are two ways to reset the computer: Ll If you are using MS-DOS, hold down m and [ and press the [Delete] key.
Page 74: Changing A Power-On Password
After you type the password correctly and press ml, a happy face character appears. Then the computer loads the operating system and displays the command prompt. Note If you turned on network server mode when you ran the Setup program, you need to use a different procedure to enter your password.
Page 75: Deleting A Power-On Password
Do not use characters requiring the m key, such as $, @, or *, in your new password. 3. Press IEnter A happy face character appears and then the computer loads the operating system. Deleting a Power-on Password To delete your power-on password, follow these steps: 1.
Page 76: Preparing The Hard Disk For Moving
This protects the hard disk from being damaged if the computer is bumped accidentally. Many hard disk drives, including all Epson drives, automatically park their heads when you turn off the computer. If your hard disk drive does not do this, or if you are not sure that it does, be sure to run HDSIT.
Page 77: Enhancing System Operations
Chapter 4 Enhancing System Operations This chapter tells you how to use the following procedures to enhance the operation of your computer: Ll Using AUTOEXEC.BAT and other batch files a Changing the processor speed Ll Reassigning the diskette drives CI Using your computer as a network server tl Using expanded memory beyond 640KB 0 Using special VGA features.
Page 78: Changing The Processor Speed
One batch file that you may find particularly useful is called AUTOEXEC.BAT. Every time you turn on your computer, MS-DOS looks for the AUTOEXEC.BAT file and automatically executes each of the commands in the file. When you install MS-DOS, it creates an AUTOEXEC.BAT file for you.
Page 79 Some copy-protected programs require the computer to run at low speed while accessing the program on a diskette. These programs also usually require you to leave a key disk-the diskette that contains the copy protection-in the diskette drive. If you use a copy-protected program often, you may want to set your processor speed to change automatically to low speed when accessing the diskette and return to high speed when it is finished.
Page 80: Entering Keyboard Commands
If you frequently use programs that require low or automatic speed, use Setup to change the processor speed. See Chapter 2 for instructions. If you use these programs only occasionally, you should use the keyboard commands or the ESPEED program (described below) to change the processor speed.
Page 81: Using The Espeed Program
The speed setting remains in effect until you press the button or turn off the computer, or until you change it again using the Setup program, another keyboard command, or the ESPEED program, described below. Using the ESPEED Program ESPEED provides an easy way to change the processor speed if your application program does not recognize the m key commands or if you a batch file.
Page 82 (This command sets the processor speed to change to low speed automatically when the computer accesses a diskette.) If you include the switch when you type the initial ESPEED command, the program changes the speed without displaying the command options. The processor speed you set remains in effect until you change it using the Setup program, a keyboard command, or the ESPEED program again or until you press the...
Page 83: Reassigning The Diskette Drives
Reassigning the Diskette Drives If your system has two diskette drives, they are connected inside your computer so that the top drive is A and the bottom drive is B. Because drive A is to load the operating system or a bootable program from a diskette, you must insert the diskette into drive A.
Page 84: Using The Afdd Program
Using the AFDD Program AFDD reverses the current diskette drive assignments and resets the system. When you are done using the reversed drive assignments, you can use the AFDD program again to reassign the drives to their original configuration. The AFDD program is provided with your system on the Reference diskette.
Page 85: Using Your Computer As A Network Server
If you are running the AFDD program from a hard disk, you can reassign the drives and reset the corn Type the following command and press AFDD /S The /S switch tells the AFDD program to reset the computer, load MS-DOS, and change the diskette drive assignments without displaying the messages.
Page 86 If you set a power-on password but do not turn on network server mode, you enter the password the operating system or the network software. Once you load it, anyone can access your system by typing commands on the keyboard. However, if you set a password and turn on network server mode, you can load your operating system or network software before you enter the password.
Page 87: Using A Password In Network Server Mode
Using a Password in Network Server Mode When you turn on or reset the computer, it loads your operating system or network software and you see either the command prompt or the first screen displayed by your network software. Follow these steps to enter your password: 1.
Page 88: Using Expanded Memory Beyond 640Kb
See your MS-DOS manuals for instructions. If you are using MS-DOS version 3.3 and you did not get a memory manager, ask your authorized Epson dealer which expanded memory manager program you should use. 4-12...
Page 89: Using Special Vga Features
Using Special VGA Features Your built-in VGA display adapter supports standard VGA monitors and multi-frequency monitors with analog connectors. The VGA adapter allows these monitors to operate in all standard VGA modes without requiring any special device drivers. However, if you want to use extended VGA modes, you can install one or more of the device drivers provided on your Utility diskettes.
Page 90 The Utility diskettes that came with your computer contain device drivers for various application programs, as well as special utilities that allow you to enhance VGA performance. See the VGA Utilities booklet for more information about VGA device drivers and utilities. 4-14 Enhancing System Operations...
Page 91: Accessing Internal Components
Chapter 5 Accessing Internal Components To access your computer’s internal components, you need to remove the cover. In some cases, you may also need to remove the front panel and the subassembly (the metal case that holds the drive bays). The instructions in this chapter explain how to do these tasks: Ll Remove and replace the cover Ll Remove and replace the front panel...
Page 92: Removing The Cover
0 Every time you remove the cover, be sure to ground yourself by touching the inside of the computer’s back panel before you touch any components inside. If you are not properly grounded, you could conduct static electricity and damage your components. Also, do not touch any components except those that this manual instructs you to touch.
Page 93 Follow these steps to remove the cover: Turn off the computer and any peripheral devices connected to it. Then disconnect the computer’s power cord from the electrical outlet and from the back panel. Also disconnect any peripheral device cables that are connected to the computer, including the keyboard cable.
Page 94: Removing The Front Panel
5. Grasp the sides of the cover (toward the front of the computer) and pull it firmly toward you, as shown below. Then lift it up and off the computer. Removing the Front Panel You must remove the computer’s front panel if you need to install or remove a disk drive from the external drive bay or if you need to remove the subassembly from the computer.
Page 95 2. Release the six tabs securing the front panel to the computer case, as shown below. You may want to use a flat-blade screwdriver to release the tabs. 3. Once these tabs are free, grasp the sides of the front panel and pull it straight the bottom, as shown below.
Page 96: Removing The Subassembly
Removing the Subassembly You need to remove the subassembly only if you are installing or removing the hard disk drive that is mounted next to the power supply. Follow these steps: 1. Turn the computer so you are facing the front panel. 2.
Page 97 3. Open the clasp holding the power supply and drive cables to the side of the subassembly, as shown below. Then remove all the cables from the clasp. 4. Grasp the back of the subassembly by the edge on its upper left side, as shown below, and lift up the back end.
Page 98: Replacing The Subassembly
Replacing the Subassembly Follow these steps to replace the subassembly: 1. Turn the computer so you are facing the front panel. 2. Hold the subassembly at a slight angle and guide the front of it down through the opening in the front of the computer, as shown below.
Page 99 4. Lower the back end of the subassembly into the computer. If necessary, fit the post beneath the back right edge of the subassembly into the hole on the top of the power supply. Then lower the subassembly all the way down. 5.
Page 100: Replacing The Front Panel
7. Connect the power supply and drive cables to the backs of all your drives, as described in Chapter 7. Replacing the Front Panel Follow these steps to replace the computer’s front panel: 1. Turn the computer so you are facing its front. 2.
Page 101: Replacing The Cover
Replacing the Cover Follow these steps to replace the computer’s cover: 1. Turn the computer so you are facing the back panel. 2. Hold the cover at a slight angle, as shown below, and lower the front part onto the computer. Then lower the back of the cover.
Page 102: Post-Installation Setup
Follow the instructions in Chapter 2 to run Setup. If you install a hard disk drive that has never received a hardware level format (such as some non-Epson hard disk drives), you need to format it before use. Check the manual that...
Page 103 You may also want to test a newly-installed option. Some options come with their own diagnostics programs; however, you can test the following with the System diagnostics program on your Reference diskette: Ll System memory Lt Math coprocessor Ci Serial and parallel ports tl Disk drives Q Monitors and display adapters Cl Dot matrix printers.
Page 104: Installing And Removing Options
Chapter 6 Installing and Removing Options You can enhance the performance of your computer by adding a variety of options, including the following: Q Option cards CI Memory modules Li An 80487SX microprocessor with built-in math coprocessor (for the 25 MHz model). An option card is a circuit board you install in your computer to add a particular function.
Page 105 Because the system circuitry may be damaged if this procedure is not performed correctly, you must have an authorized Epson dealer or Service Center do it for you. This chapter also explains how to change the jumper settings inside the computer.
Page 106: Main System Board
Main System Board As you follow the instructions in this chapter and in Chapter 7, use the illustration below to locate the necessary components on your main system board. parallel port option slots l-4 l l b l l IWI lull I JP10 JP11 JP12...
Page 107: Jumper Settings
Jumper Settings If you change your computer’s configuration or need to alter the way it operates, you may need to change a jumper setting inside the computer. A jumper is a small electrical connector that controls one of the computer’s functions. The jumper settings in your computer are preset at the factory;...
Page 108 A jumper’s setting is determined by where the jumper is placed on the pins. The jumper connects either pin A and the middle pin (position A) or pin B and the middle pin (position B), as shown below. J=&!gB L$gA &zJg The following tables list the jumper settings and their functions.
Page 109 Jumper settings for base memory Base memory 640KB 512KB 256KB Factory setting Jumper settings for extended memory Factory setting Jumper settings for alternate 25 MHz microprocessor Jumper Jumper number setting * Factory setting; these jumpers are not used for the 50 MHz microprocessor Installing and Removing Options Jumper JP13 A’...
Page 110: Changing The Jumper Settings
Changing the Jumper Settings If you need to change any jumper settings, follow these steps: 1. Remove any option cards that may be blocking your access to the jumpers. See page 6-12 for instructions. 2. Change the jumper settings as necessary according to the tables above.
Page 111: Option Cards
Your computer has six standard option slots: five 16-bit slots and one 8-bit access slot. Each slot can accommodate an option card. You can buy option cards from authorized Epson dealers as well as other vendors. Before you install an option card, check the power requirements given in the card’s documentation.
Page 112 The illustration of the main system board on page 6-3 shows the six standard option slots inside your computer. Slot 5 is designed for an 8-bit option card and slots 0 through 4 are designed for 16-bit cards. As you can see below, a 16-bit card has an extra connector along the bottom.
Page 113: Installing Option Cards
Installing Option Cards Follow these steps to install an option card: 1. If you are installing an option card that controls a mouse, you need to change the setting of jumper JP7 before you install the card. If you install a display adapter card, you may need to change the settings of jumpers JP4 and JP6.
Page 114 3. Unpack the option card. When you handle it, be careful not to touch any of the components on the circuit board or the gold-edged connectors. If you need to set it down before you install it, place it gently on top of its original packing material with the component side facing up.
Page 115: Removing An Option Card
6. Secure the end of the card to the back of the computer with the retaining screw. 7. Follow the instructions in Chapter 5 to replace the computer’s cover. Then see “Post-installation Setup Procedures” at the end of that chapter for information on updating your computer’s configuration settings.
Page 116: Memory Modules
Memory Modules Your computer comes with 4MB of memory soldered onto the memory card in your computer. By installing SIMMs (single inline memory modules) on this card, you can increase the amount of memory in your computer up to 16MB. Caution It is best to have your dealer install memory modules for you because they can be damaged easily if installed...
Page 117: Installing Memory Modules
Installing Memory Modules There are 12 SIMM sockets on the memory card organized in three banks consisting of four sockets each. Each socket can contain one memory module. You must fill all of the sockets in any bank you use. Since each bank has four sockets, you must install four SIMMs to fill up the bank.
Page 118: Removing The Memory Card
Removing the memory card Follow these steps to remove the memory card from your computer: 1. Remove the screw securing the memory card to the bracket at the front of the computer case, as shown below. 2. Grasp the top of the card and pull it straight up and out of its socket.
Page 119 Installing SlMMs Follow these steps to install SIMMs: 1. Turn the memory card on your work surface so the connectors at the bottom of the board are toward you. The sockets are labeled as shown below. 2. It is easiest to install SIMMs in the left sockets first. Position each SIMM with the notched edge toward the top of the socket and insert it on the right side of the tabs at an angle, as shown below.
Page 120 3. Gently push the SIMM into the socket and then tilt it left until it is vertical. The SIMM should snap into place between the tabs and the retaining posts. If it does not go in smoothly, do not force it; pull it all the way out and try again.
Page 121 Removing SlMMs If you need to remove SIMMs from your computer, have your dealer do it for you or follow the steps below. If you remove them yourself, check the table on page 6-14 to be sure you remove SIMMs from the correct sockets. Follow these steps to remove SIMMs: 1.
Page 122 4. Set the appropriate main system board jumpers to indicate the total amount of memory you now have. See “Jumper Settings” on page 6-4 for instructions. 5. Follow the instructions below to reinstall the memory card. Replacing the memory card Follow these steps to replace the memory card in your computer: 1.
Page 123: Installing And Removing Drives
If you want to install or remove a non-Epson drive, you can follow these instructions, although some of the steps in this chapter may not apply. See the manual that came with your drive for more information.
Page 124: Using The Correct Drive Bay
Using the Correct Drive Bay Your system can hold up to five half-height drives or a combination of third-, half-, and full-height drives. As shown below, there are two drive bays: the external drive bay and the internal drive bay. external drive bay The external bay can accommodate up to three drives in the following configurations:...
Page 125: Setting The Ide Hard Disk Drive Jumpers
You can install 3Winch drives in the internal bays. In the external bay, you can install 51/4-inch drives or 3M-inch drives with 5%inch mounting frames attached. You also need to attach metal drive brackets to each drive you install in the external bay. Two sets of these brackets (with retaining screws) come in the box with your computer.
Page 126: Changing The Jumper Settings
Changing the Jumper Settings The hard disk drive jumpers are usually located on the drive’s circuit board, near the large cable connector. The instructions in this section describe setting the jumpers on the factory-installed hard disk drive. The jumpers on your drive may be in a slightly different location, but you set them the same way.
Page 127 Set the jumpers according to the table below. disk drive jumper settings Hard X = jumper installed - = no jumper installed To move a jumper from one position to the other, use your fingers, needle-nose pliers, or tweezers to pull it off its pins and gently move it to the other position.
Page 128: Installing Or Removing A Drive In The External Bay
Installing or Removing a Drive in the External Bay This section describes how to install or remove an Epson diskette drive; however, you can use these instructions to install or remove another type of storage device. See the manual that came with it for additional installation instructions.
Page 129 Follow the steps below to install a disk drive in an external bay. 1. Locate the following parts included with your computer for each drive you will install: two metal drive brackets four retaining screws (with attached flat washers) tl two nuts (with attached star washers) 0 small wrench.
Page 130 3. Slide the drive into the bay as shown below, aligning the bracket screws on each side with the appropriate grooves in the drive bay guide. 4. Guide the holes in the front of the brackets over the threaded posts on the front of the subassembly. Then push the drive all the way into the bay.
Page 131 8. Locate one of the power supply cables (labelled P1 through P5) in the clasp on the left side of the subassembly. (You can use any one that is available.) Align the notched corners on the cable connector and the socket on the back of the drive, as shown below.
Page 132 Align the cable connector with the drive interface so that the divider in the connector lines up with the gap in the interface, as shown below. Then push in the connector. 11. To remove the slot cover for the drive you just installed, turn the front panel so you are facing the inside.
Page 133 12. Locate the hard disk drive cable. If you are installing your first hard disk drive, this cable came in the box with your computer. If you are installing a second drive, the cable is attached to your internal hard disk drive. Align the available cable connector with the drive socket so the row in the connector with the blocked hole lines up with the row in the socket with the missing pin, as shown below.
Page 134: Removing A Drive
Removing a Drive Follow these steps to remove a drive from the external drive bay: 1. Disconnect the power supply and drive cables from the back of the drive you want to remove, as shown below. 2. Use the small wrench to remove the two nuts securing the metal drive brackets to the front of the drive bay, as shown below.
Page 135 Grasp the front of the drive and pull it out. Note If you remove an IDE hard disk drive from the external bay and it is your only hard disk drive, you must also remove the hard disk drive cable from its connector on the main system board.
Page 136: Installing Or Removing A Drive In The Internal Bay
Installing or Removing a Drive in the Internal Bay You can install only 3M-inch hard disk drives in your computer’s internal drive bay. If you are installing your first hard disk drive, install it in the position farthest from the power supply.
Page 137: Removing A Drive
Removing a Drive Follow these steps to remove an internal drive: 1. Disconnect the power supply and drive cables from the drive (if you have not already done so), as shown below. drive cable power cable 2. Remove the four screws securing the drive to the internal drive bay.
Page 138: Installing A Drive
Note If you remove one IDE hard disk drive and are leaving another one in the system, you must set the jumpers on the remaining drive to indicate that you have only one IDE drive installed. Remove the other drive following steps 1 and 2, above;...
Page 139 connectors 2. Adjust the drive’s position so that the four holes on the drive are aligned with the corresponding holes in the drive bay. Then secure the drive with four retaining screws. 3. Connect the drive and power supply cables, as described below.
Page 140: Connecting The Cables
Connecting the Cables Follow these steps to connect the drive and power supply cables: 1. If the subassembly is out of the computer, follow the steps in Chapter 5 to replace it. 2. Locate one power supply cable for each drive you installed in the internal drive bay.
Page 141 If you are installing your second drive, the cable is already attached to your other drive; use the second connector on that cable. Connect the cable as described below; then skip to step 5. To connect the cable, align the cable connector with the drive interface so the row in the connector with the blocked hole lines up with the row in the interface with the missing pin, as shown below.
Page 142 4. If you are installing your first hard disk drive, you also need to connect the drive cable to disk drive socket is labeled of the memory card. Connect the cable matching the notch on the socket to the tab on notch If you have difficulty reaching the socket, you can remove the memory card;...
Page 143: Appendix A Physically Formatting A Hard Disk
You may need to use the procedure in this chapter to physically format a hard disk if you have installed a non-Epson hard disk in your computer that has never received the low-level format and did not come with its own format utility.
Page 144: Choosing The Type Of Format
In addition to destroying all the data on the hard disk, physical formatting removes any partitions and logical formatting defined on the disk by your operating system. After you physically format a new or used hard disk, follow the instructions in your operating system manual to partition and format the hard disk to prepare it for use.
Page 145: Formatting A New Disk
You may need to modify the defective track table to add the bad tracks. Other hard disks (such as those supplied by Epson) come with the bad tracks already flagged. If you are formatting a new hard disk that has never been formatted, select the Format option.
Page 146: Reformatting A Used Disk
Reformatting a Used Disk If you are reformatting a disk you have been using, follow these steps: 1. Use the Non-destructive surface analysis test to check for unflagged bad tracks. 2. If errors occur during the Non-destructive surface analysis, back up your hard disk to diskettes. 3.
Page 147: Option 1, Format
Option 1, Format If you select Format see the following (for a disk with no defective track table): Format Hard Disk Scan hard disk to get defective track information (If the disk already has a defective track table, you do not see the message because the disk does not need to be scanned for bad tracks.) 1.
Page 148 For an Epson hard disk drive, it is best to accept the recommended skewed sector (also called the of 1 since this setting allows your drive to perform factor) more efficiently. For other hard disk drives, you may need to change this value if the documentation that came with the disk recommends a different number.
Page 149: Modifying The Defective Track Table
The program now allows you to edit the defective track table. At the bottom of the table is this prompt: Modify defective Select N to leave the table as it is. Then skip the following section and go to “Formatting the Disk” on page A-8. To add bad tracks to the defective track table, see the next section.
Page 150: Formatting The Disk
When you complete a valid entry, it appears in the table and you can add the next bad track, if necessary. If you make a mistake, move the cursor block to the incorrect track and press [cl to change the track data or press [Dl to delete the track from the table.
Page 151: Option 2, Destructive Surface Analysis
Select Y to cancel formatting (and check your backups) or N to continue. If you continue with formatting, you see: Format started. : n n n Head The head and cylinder numbers decrease as the program progresses. When formatting is complete, the program flags any bad tracks and you see a series of messages like these: Format finished.
Page 152 Caution If any errors occur during that produces the error is destroyed. For this reason, if you suspect an unflagged bad track is causing trouble, option 3, Non-destructive surface analysis, to check the disk surface. To start this test, select from the Hard Disk Format Menu, You see these messages: Analyze Hard Disk Read/Save/Write/Read/Restore/Read...
Page 153 If the program finds one bad track that is not flagged, the summary would show one track with a write, read error. The report is followed by a table like this: Write, Read Error Tracks Cylinder Head Cylinder Head Confirm to register the tracks in the Write, Read Error Track Table as bad tracks.
Page 154: Option 3, Non-Destructive Surface Analysis
Option 3, Non-destructive Surface Analysis The Non-destructive surface analysis does not destroy any data, and you can use it to safely check the condition of your hard disk drive. However, this test does not flag bad tracks. To start the test, select Non-destructive surf ace analysis from the Hard Disk Format Menu.
Page 155: Exiting The Hard Disk Format Menu
Exiting the Hard Disk Format Menu To leave the Hard Disk Format Menu, select Exit. The screen displays the Operation Menu. If you formatted the hard disk with option 1 or 2, you must now install MS-DOS (or another operating system) on the hard disk to prepare it for use.
Page 156: Appendix B Troubleshooting
Identifying Your System When you request technical assistance from your dealer, a qualified service person, or the Epson Customer Resource Center, be ready to provide your computer’s serial number (on its back panel), its configuration (including the type of disk drives, monitor, and option cards), and the names and version numbers of any software programs you are using.
Page 157: Error Messages
2. At the MS-DOS command prompt, type IEnter The screen displays the MS-DOS version number. Write down the number so you can give it to your dealer. If you did not copy ROMBIOS.COM or you do not have a hard disk, follow these steps: 1.
Page 158 If the error is serious, the computer cancels further checking and halts system initialization. The error message remains on the screen and the computer locks up. If this happens, contact your dealer as soon as possible. Report the error messages when you request technical assistance.
Page 159 Power-on diagnostics error messages (continued) Error code Memory Keyboard Monitor Diskette drive(s) and controller Parallel port (printer interface) Serial port (RS-232C port) 1101 Troubleshooting BIOS shadow RAM error 1 Contact dealer Cache options error Memory error Memory address error Memory address error Keyboard error Keyboard or system unit error...
Page 160: The Computer Won't Start
Power-on diagnostics error messages (continued) Error code Hard disk drive(s) and controller 1760 1761 1770 1771 1780 1781 1782 1790 1791 Auxiliary device(s) 8601 8602 8603 The Computer Won’t Start If your computer does not start when you turn check the following: 1.
Page 161: The Computer Does Not Respond
2. If the power light still does not come on, check the electrical outlet for power. Turn off your computer, unplug the power cord, and plug a lamp into the outlet. Turn it on to see if the outlet supplies power. 3.
Page 162 If that doesn’t work, insert the Reference diskette in drive A and press the does not boot, contact your Epson dealer. 3. Did you enter the correct password? See “Password Problems,” below. 4. Could your software be causing the problem? If you are running an application program, see “Software Problems,”...
Page 163 9. If you installed an EGA or VGA display adapter card, or another type of card that you want to be the primary display adapter, you must set jumper JP4 to disable the built-in VGA adapter. Otherwise, you will not see any display on the screen.
Page 164: Restoring The Power Supply
Restoring the Power Supply To restore normal power supply operation, follow these steps: 1. Turn off the computer and leave it off for at least 30 seconds to reset the power supply logic. 2. To determine the cause of the high temperature and correct the condition, check for the following: Room temperature above 95°F (35°C).
Page 165: Password Problems
Password Problems If you have any trouble using your password, try the following: 1. If you think you know the correct password, reset the computer and try again. See Chapter 3 for instructions. Note If you enabled network server mode when you set a password, you do not see the key prompt.
Page 166: Removing A Password
Removing a Password If you have forgotten your password and you do not want to set a new one, there are two ways to remove the current password: tl Disable the existing password Q Disable the password function. To do either of these procedures, you must reset a jumper on the main system board.
Page 167 2. Insert the Reference diskette in drive A and turn on the computer. You do not see the key prompt. 3. When the Operation Menu appears, highlight Setup and press (Enter. Then see “Setting the Power-on Password” in Chapter 2 and follow the instructions to enter a new password.
Page 168: Setting A New Password
Setting a New Password If you have forgotten your current power-on password and want to set a new one, follow these steps: 1. Turn off the computer. Then follow the instructions under “Changing the Jumper Settings” in Chapter 6 to disable the password function by setting jumper JP5 to position A.
Page 169: Keyboard Problems
Keyboard Problems If you are having trouble with the keyboard, check the following: 1. If the screen displays a keyboard error message when you turn on or reset the computer, make sure the keyboard is securely connected to the computer. See “Connecting the Keyboard”...
Page 170: Monitor Problems
Monitor Problems For monitor problems, check the following: 1. If there is no display on the screen, check that the monitor’s power switch is on and that its power light is lit. If the power light is on, but you still do not see anything on the screen, check the brightness and contrast controls.
Page 171 8. If you are running an application program, see if you need to set up the program for the type of monitor and display adapter you have. Also make sure you are using the appropriate monitor and display adapter for your software. 9.
Page 172: Diskette Problems
Diskette Problems If you see a diskette error message or have trouble accessing data on a diskette, try the following steps: 1. Did you secure the diskette in the drive properly? On a 5%inch drive, be sure to turn down the latch or press the button.
Page 173 7. You may have entered an incorrect diskette drive type when you ran the Setup program. Run the Setup program again to check the setting. See Chapter 2 for instructions. 8. Did you receive one of the following MS-DOS error messages? Ll Disk Drive Error: Abort, Ignore, Retry? Cl Disk error reading drive d:...
Page 174: Diskette Drive Problems
Appendix C. If the diagnostics program indicates an error, your Epson dealer. contact 5. If the diskette drive is making loud noises, do not attempt any further examination of it. Contact your Epson dealer. Note Diskette drives may make different sounds accessing different diskettes.
Page 175: Hard Disk Problems
Hard Disk Problems If you are having a problem with a hard disk in your computer, you may see a hard disk error message. The problem could be the result of improper installation, incomplete disk preparation, or corrupted data. The suggestions in this section cover problems in three categories: Ll Installing the drive 0 Preparing the drive for use...
Page 176: Preparing The Drive
Also check the jumper settings on your drive to make sure they are set correctly. 3. If you installed a non-Epson hard disk drive, was it physically formatted by hard disk must be physically formatted (or before you can partition it and install an operating system on it.
Page 177: Accessing Data On The Drive
If you do not prepare the drive correctly, you cannot store data on the disk. For example, if you partition the drive and format it for MS-DOS (or for another operating system) but you do not copy the operating system to it, you will not be able to load the operating system from the hard disk.
Page 178: Software Problems
Software Problems If you are having trouble with an application program, try the following solutions: 1. If the application program does not start, check that you are following the correct procedure for starting the program, and that it is installed correctly. If you have a hard disk and the program is stored in a directory on that drive, make sure you are logged onto or specifying the correct directory.
Page 179: Printer Problems
5. If resetting the computer does not help, remove any diskettes, turn off your system, wait five seconds, and turn it back on. Then restart your application program. If none of these solutions solve your software problem, contact the software manufacturer for technical support. Printer Problems Below are some general steps to follow if you are having difficulty with your printer.
Page 180 4. If your printer is properly set up but is still not functioning, test it from the MS-DOS level. When the screen displays MS-DOS command prompt (such as [ and press [Print]. This should print the screen on your printer. If it does not, you may need to change the internal setting of the computer’s parallel port for a parallel printer (or serial port for a serial printer).
Page 181: Option Card Problems
Option Card Problems If you install an option card and it does not function properly, check the following: Is the option card installed correctly? Make sure it is well-seated in its slot. Check the installation procedure described in Chapter 6 and also see the instructions that come with the card.
Page 182: Mouse Problems
Mouse Problems If you are having a problem with your mouse or you see an auxiliary device error message, check the following: LI Make sure the mouse cable is securely connected to the mouse port and not the keyboard port. The mouse port has a special icon on the computer case.
Page 183 3. Use the COPY command to copy MOUSE7PT.EXE from your Reference diskette to the directory on your hard disk that contains the MOUSE.COM file. (See your MS-DOS manuals for instructions on using the COPY command.) 4. Log onto the directory that contains the MOUSE7PT.EXE and MOUSE.COM files.
Page 184: Memory Module Problems
Memory Module Problems If you added extra memory to your system by installing SIMMs and that memory is not operating properly, check the following: 1. Check to make sure that you set the memory configuration jumpers (JP8 through JP14) correctly and that they match your current SIMM configuration.
Page 185: Math Coprocessor Problems
Math Coprocessor Problems If the math coprocessor in your system does not seem to be operating properly, check the following: 1. If you have the 25 MHz model and replaced the 80486SX microprocessor with an 80487SX chip, make sure you set jumpers JP1 through JP3 to indicate that you installed a math coprocessor.
Page 186: Appendix C Performing System Diagnostics
Appendix C Performing System Diagnostics This appendix describes how to test the operation of your computer and its peripheral devices using the System diagnostics program on your Reference diskette. Run the diagnostics program if you are not sure whether a device is performing correctly.
Page 187: Starting System Diagnostics
Starting System Diagnostics To run the System diagnostics program, you turn on or reset your computer with the Reference diskette in drive A. If you start the program in any other way, some tests may produce strange results. To start the System diagnostics program, follow these steps: 1.
Page 188 If the list correctly describes your system, highlight IEnter If a device is missing from this list, or if you want to change the list, press [Nl or + and IEnter Then see “Modifying the Device List” on page C-5. Note If your system uses the built-in VGA adapter or an EGA or VGA card with a color monitor, your device list should...
Page 189: Selecting An Option
Selecting an Option When you are using the System diagnostics program, you often need to select this: tl Use the arrow keys (1‘ 1 t +) to highlight the option you want and then press B to select it Ll Type the number of the desired option and press m to select it.
Page 190: Modifying The Device List
Modifying the Device List If an installed device is missing from the Device List, you can add it to the list for testing. At the following prompt, select N. DEVICE LIST is correct ? (Y/N) You see this menu: - Add device - Delete device 0 - Finish modification To add a device to the list, select 1.
Page 191: Selecting A Test
Selecting a Test From the Device List, select the device you wish to test. Before the test begins, the program asks how many times to perform the test. You see this menu: Number of 1 - Run test one time 2 - Run test multiple times 0 - Exit You can specify that the test be performed any number of times...
Page 192: Resuming From An Error
For some devices, the computer does not display a submenu of tests to choose from. Instead, it performs all the tests that do not require you to enter a response. If you chose to test the device more than once, the computer runs all the tests and then repeats them in the same order.
Page 193 After printing the error message, the program displays this prompt: P r i n t o u t i s f i n i s h e d . Press ENTER to return to the menu. The program continues after an error in one of the following ways: Q It returns to the Device List 0 If you are running multiple tests and are not terminating on...
Page 194 System diagnostics tests (continued) Device Monochrome display adapter and CRT Color graphics adapter and CRT Diskette drive(s) and controller Math coprocessor Parallel port (printer interface) Serial port (RS-232C) Alternate serial port Tests available Adapter check Attribute check Character set check Graphics mode check Screen paging check Video check...
Page 195: Error Messages
System diagnostics tests (continued) Device Dot matrix printer Hard disk drive(s) and controller Alternate parallel port Parallel port on a video adapter Error Messages The following table lists all the error messages that may appear during System diagnostics testing. System diagnostics error messages Error code System board C-10...
Page 196 System diagnostics error messages (continued) Error code System board (continued) Memory Keyboard Monochrome display adapter and CRT Message Keyboard controller timeout error Keyboard controller self diagnostic error Keyboard controller write command error Interrupt controller error CMOS shutdown byte error CMOS battery error CMOS checksum error CPU instruction error Protect mode error 1...
Page 197 System diagnostics error messages (continued) Error code Color graphics adapter and CRT Diskette drive(s) and controller Math coprocessor C-12 Performing System Diagnostics Message Error in adapter check Error in attribute Error in character set check Error in color graphics check Error in screen paging check Error in light pen check Error in color video check...
Page 198 System diagnostics error messages (continued) Error code Math coprocessor (continued) Parallel port (printer interface) Serial port (RS-232C port) 1101 1101 1102 1103 Alternate serial port Dot matrix printer 1401 Hard disk drive(s) and controller 1701 1702 1703 1704 1705 1706 Alternate parallel port 2101 Parallel port (on video adapter)
Page 199: Appendix D Specifications
Appendix D Specifications CPU and Memory 32-bit CPU System speed System memory Shadow RAM Math coprocessor Clock/calendar Cache controller 25 MHz system: 80486SX processor, 50 MHz system: 80486DX2/50 processor 25 MHz regardless of CPU; for 80486DX2/50, 50 MHz speed is internal only; 8 MHz speed is simulated by inserting wait states;...
Page 200: Controllers
5?&inch, high-density, 1.2MB; 5?&inch, double-density, 360KB; 3Winch, high-density, 1.44MB; or 3M-inch, double-density, 720KB; also supports optional Epson tape drive; controller on main system board Supports up to two drives; embedded controller; interface on main system board VGA adapter with 1MB of video memory built into main system board;...
Page 201: Power Supply
Auxiliary Keyboard Option slots Speaker Power Supply Type Input ranges Maximum outputs Option slotpower limits Mass Storage Bays Mini DIN, 6-pin connector for PS/2 compatible mouse or other device Mini DIN, 6-pin connector for PS/2 compatible keyboard Six standard ISA compatible input/output expansion slots (five 16-bit and one 8-bit);...
Page 202: Keyboard
Keyboard Layout Function Environmental Requirements Condition Operating range Temperature 41° to 95° F (5° to 35° C) Humidity 20% to 80% (non- condensing) Altitude -330 to 9900 ft (-100 to 3000 m) Maximum 68° F (20° C) wet bulb Physical Characteristics Width Depth Height...
Page 203 Power Source Requirements 120 Volt power source requirements AC plug 240 Volt power source requirements AC plug Plug Type Reference standards ANSI C73.11, North America NEMA 5-15-P 125V, 10A IEC 83 Plug type Reference standards Europe CEE 7/7 240V, 10A to IEC 83 IEC 127 HD21...
Page 204: System Memory Map
System Memory Map 02000000h OO1OOOOOh 000F0000h 000E0000h 000D0000h 000C0000h 000B0000h 000A0000h 00000000h The system BIOS and VGA BIOS are contained in one 128KB EPROM. The 64KB system BIOS and 32KB VGA BIOS ROM are shadowed in RAM after the system completes power-on diagnostics. The system and VGA BIOS ROM area in the 000E0000h through 000F0000h range is shadowed at 000E0000h after the system completes power-on diagnostics.
Page 205: Glossary
Glossary Address A number or name that identifies the location where information is stored in a computer’s memory. Analog monitor A monitor that generates, responds to, or acts upon analog data. Analog data is transmitted by varying the voltage levels in a continuous current.
Page 206 Automatic speed The feature that enables the computer to switch automatically from high speed to low speed when accessing a diskette drive. Backup An extra copy of a program, data file, or disk, that is created in the event your working copy is damaged or lost. Base memory The memory in the computer below 1MB that is available to MS-DOS and application programs-usually 640KB.
Page 207 A sequence or group of eight bits that represents one character. Cache memory A high-speed type of memory buffer that stores information from base or extended memory where your system can access it faster. Color Graphics Adapter. A type of display adapter card that can generate up to 25 lines of text with 80 characters on each line, monochrome graphics at 640 x 200 resolution, or four-color graphics at 320 x 200 resolution.
Page 208 Command prompt The symbol or message that tells you MS-DOS is loaded and ready to receive instructions. The default command prompt displays the current drive and directory. If you are logged onto drive C, the command prompt may look like this: Configuration The particular setup of a group of components.
Page 209 Central Processing Unit. The primary unit of the computer that interprets instructions, performs the tasks you indicate, keeps track of stored data, and controls all input and output operations. Cursor The highlighted marker that shows your position on the screen. Cylinders The vertical alignment of tracks in a hard disk that can be lined up under one read/write head.
Page 210 Device driver A file containing instructions that allow your computer to recognize and control a device. Diagnostics The tests and procedures the computer performs to check its internal circuitry and set up its configuration. DIP switch Dual Inline Package switch. A small switch on a computer, option card, or printer that controls a particular function.
Page 211 Display adapter card A circuit board that can be installed in one of the computer’s option slots to provide the monitor interface. The display adapter card controls the way the monitor displays text and graphics. (In this computer, a VGA display adapter is built into the system board.) Also called Video card.
Page 212 Extended Memory Memory above 1MB that is accessed by the protected mode of the microprocessor and is available to some application programs and operating systems. Extended VGA mode Special features of the built-in VGA adapter available when you are using certain display drivers and a multi-frequency monitor.
Page 213 Format To prepare a new disk (or an old one you want to reuse) so that it can store information. Formatting divides a disk into tracks and sectors and creates addressable locations on it. Graphics Lines, angles, curves, and other nonalphanumeric data. Hard disk The enclosed unit used to store large amounts of data.
Page 214 A small device that connects two pins on an option card, a disk drive, or the main system board to activate a particular function. Key disk A diskette containing a copy-protected program that must remain in the diskette drive while you are using the program. Kilobyte (KB) A unit used to measure storage space in a computer’s memory or on a disk.
Page 215 Monochrome Display Adapter. A type of display adapter that displays text in only one color, such as green or amber. Megabyte (MB) A unit used to measure storage space in a computer’s memory or on a disk. One megabyte equals 1024KB. Megahertz (MHz) A unit used to measure oscillation frequency (of a computer’s internal timing clock).
Page 216 Microprocessor A small version of a CPU contained on one semiconductor chip. See also CPU. Modem A device that allows a computer to transmit signals over telephone lines so it can send and receive data. Modem stands for MOdulator/DEModulator. Monitor The piece of hardware that contains the screen and displays information.
Page 217 Network server mode An optional password mode that provides extra security for a computer that is operating as a network server. Non-inter/aced mode A technique used by the built-in VGA display adapter that refreshes all the lines on the monitor screen sequentially from top to bottom.
Page 218 Parallel The type of interface that transmits all the bits in a byte of data simultaneously over separate lines. See also Parameter A qualifier added to a command that tells the program what particular conditions to look for and specifies information such as what data you want to process and where to locate or store a file.
Page 219 Power-on diagnostics Tests that the computer runs to check its internal circuitry and configuration each time you turn it on. Power-on password The sequence of characters you type after you turn on the computer in order to access and use your system. A power-on password can be up to seven characters long and can include letters, numbers, and blank spaces.
Page 220 Read/write head The physical device inside a disk drive that reads and records data on the magnetic surface of a disk. Real-time clock A battery-powered clock inside the computer that keeps track of the time and date, even when the computer is turned off. Reset To reload a computer’s operating system so you can retry a task or begin using a different operating system.
Page 221 S e c t o r A contiguous section of a disk track that provides an address at which the computer can access data. Se/f test The initial diagnostics procedures a system performs to check its hardware. Also called Power-on diagnostics. S e r i a l The type of interface that transmits data one bit at a time.
Page 222 Switch An option added to a command that modifies the way the command works. Switches are usually preceded by a / (forward slash). For example, if you add the /S switch to a FORMAT command, MS-DOS installs the operating system on the diskette as it formats it.
Page 223 card Video See Display adapter card. Write To store data on a disk. Write-protect To protect the data on a diskette from being changed by placing a write-protect tab over the notch on the side of a 5%inch diskette or by setting the write-protect switch on a 3Winch diskette.
Page 224 Index AFDD program, 3-2, 4-7-9 Alternate parallel port check, C-10 Alternate serial port check, C-9 Analog monitor, 4-13 AUTOEXEC.BAT, 2-33, 4-1 -2, C-3 Automatic configuration, 2-2 Automatic speed change, 2-13-15, 4-2 -6 Auxiliary device problems, B-27 -28 Auxiliary interface, D-3 Backing up data, from diskettes, 3-1 -2 on hard disk, A-1...
Page 225 EMM386.SYS, 4-12 Emulation mode, VGA, 2-6 -8, 4-13 Enhanced graphics adapter, see Video cards Environmental requirements, D-4 Epson Customer Resource Center number, Intro-5 Error codes and messages, 2-4-5, B-2 -5, C-10 -13 ESPEED program, 3-2, 4-3 -6 Expanded memory, 4-12...
Page 226 Files, AFDD.EXE, 3-2, 4-7 -9 AUTOEXEC.BAT, 2-33, 4-1 -2, backing up, 3-1 -2, A-1 batch, 4-1 -2 CONFIG.SYS, 1-12, 2-33, C-3 copying, 3-1 -2, A-1 EMM386.EXE, 4-12 EMM386.SYS, 4-12 ESPEED.EXE, 3-2, 4-3 -6 HDSIT, 3-2, 3-9 MOUSE7PT.EXE, B-27 -28 ROMBIOS.COM, 3-2, B-1 -2 utility, 3-2 Floppy disk drive, see Diskette drive...
Page 227 LIM 4.0 EMS, 4-12 Loading MS-DOS, 2-33 Location, choosing for computer, 1-1 -2 Locking computer cover, 3-3 Low-level format, see Physical formatting Main system board, 6-3 Mass storage, D-2 -3 Master drive, 7-3 -5 Math coprocessor, check, C-9 configuring, 2-2, 2-31 installing, Intro-2, 6-1 -2 jumpers, 6-6, B-30 problems, B-30...
Page 228 Network server, 4-9 -11 Network server mode, 2-9 -11, 3-7, 4-9 -11 Non-destructive surface analysis, A-2 -3, A-12 -13 Non-interlaced mode, 4-13 Num lock, initial, 2-15-17 mode, 2-6, 2-15-17 Operating speed, see Processor speed Operating system, installing, 3-1, Operation Menu, 2-3 Option cards, configuring, 2-6 -9, 6-8, 6-12 installing, 6-1, 6-8-12...
Page 229 RAM cache, D-2, D-6 RAM check, B-2 Random access memory (RAM), 2-1, 3-18, B-2 Read only memory (ROM), B-2, D-l, D-6 Read/write heads, 3-9 Real-time clock, 2-17-19, D-l Reassigning diskette drives, 4-7-9 Redirecting printer output, 1-9 Reference diskette, 2-1, 3-2 RESET button, 3-6 Resetting the computer, 3-5 -6 ROM, see Read only memory...
Page 230 System, identifying, B-1 -2 memory, see Memory setting up, 1-1-16 Tape drive, 7-1, 7-9 TIME, 2-17 Time, setting, 2-17 -19 Timer check, B-2 Tracks, A-1 -13 Troubleshooting, B-1 -30 TURBO light, 4-2 Turning off computer, 1-16 Turning on computer, 1-14 -15 UNIX, Intro-2, 3-1 Utilities, VGA, 3-2, 4-13 -14 Utility diskettes, 3-2, 4-13 -14...
Page 231 diskette release power inlet mouse’ keyboard port V G A Port port monitor port diskette release button power optional RESET drive bay button option card slots parallel serial port power light TURBO speed light hard disk access light...
Page 232 User’s Guide Update To run any of the following programs from your Reference diskette, you need to access the Operation Menu: cl Setup c3 Format hard disk D System Diagnostics tI Prepare hard disk for moving. The instructions in your User’s Guide tell you that when you insert the Reference diskette in drive A and then turn on or reset your computer, the first screen you see is the Operation Menu.
Page 233 [Enrsrl. 3. Now follow the remaining steps in the appropriate section of your User’s Guide to use the program you selected. Copyright Q 1992 by Epson America, Inc. Torrance, California Change settings Exit without saving...

This manual is also suitable for:

Equity 486dx2/50 plus Equity 486sx/25 plus

Epson 486SX User Manual

Chapter 1 Setting up Your System

Chapter 2 Running the Setup Program

Chapter 3 Using Your Computer

Chapter 4

Enhancing System Operations

Chapter 5 Accessing Internal Components

Chapter 6 Installing and Removing Options

Chapter 7 Installing and Removing Drives

Appendix A Physically Formatting a Hard Disk

Appendix B Troubleshooting

Appendix C Performing System Diagnostics

Appendix D Specifications

Glossary

Quick Links

Related Manuals for Epson 486SX

Summary of Contents for Epson 486SX

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Table of Contents