EpsonメーカーEL 486UC+の使用説明書/サービス説明書
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EPSON © User’s Guide 663 This manual is printed on 50% recycled paper, 10% post-consumer content..
Read This First Before you set up your EPSON ® EL 486UC+ computer, read this card for guidelines on how to get started. Also keep it around for future reference because it provides important information about your system and how to get technical assistance when you need it.
4. Install VGA device drivers and utilities. If you have a monitor that supports resolutions over 640 x 480, you’ll probably want to use some of the VGA device drivers and utilities that came with your computer to enhance the display capabilities of your built-in VGA adapter.
CompuServe On-line Support If you have a modem, the fastest way to access helpful tips, specifications, drivers, application notes, tables for DIP switch or jumper settings, and bulletins for EPSON products is through the Epson America Forum on CompuServe.
Important Record lnformation Take a moment to write down some important information about your system. You can easily refer to this card if you call for assistance.
IMPORTANT NOTICE DISCLAIMER OF WARRANTY 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 ofmerchantability and fitness for a particular purpose or for any indirect, special, or consequential damages.
Important Safety Instructions Read all of these instructions and save them for later reference. Follow all warnings and instructions marked on the computer. Unplug the computer before cleaning. Clean with a damp cloth only. Do not spill liquid on the computer.
Importantes instructions de sécurité Lire attentivement les instructions suivantes et les conserver pour les consulter en cas de besoin. Observer soigneusement tous les avertissements et directives marques sur l’ordinateur. l Debrancher l’ordinateur avant de le nettoyer.
lntroduction Your new EPSON ® computer offers the following features: 0 0 0 0 0 0 0 0 0 0 0 0 Intel ® 486SW 25 MHz, 486DW 33 MHz, 486DX2/ 50, or 486DX2/ 66 MHz microprocessor 4MB of internal memory,.
Using the built-in interfaces, you can connect most of your peripheral devices directly to the computer, so you do not have to install option cards. You can use the option slots to enhance your system with extra functions such as a modem card, a network controller card, or additional interface ports.
OptionaI Equipment You can easily upgrade your computer by installing additional memory and a wide variety of options, as described below. (Installation instructions are provided in Chapters 4 and 5.
Math Coprocessor You automatically install a math coprocessor when you upgrade your system with a DX or DX2 microprocessor, because a math coprocessor is built into the 486DX and 486DX2 chips.
Chapter 4 describes how to remove and replace the computer’s cover, change jumper settings, and install optional equipment such as microprocessor upgrades, option cards, and memory modules. Chapter 5 explains how to install and remove disk drives. Chapter 6 contains troubleshooting tips.
Where to Get Help If you purchased your computer in the United States or Canada, EPSON provides customer support and service through a network of Authorized EPSON Customer Care Centers. EPSON also provides support services through the EPSON Connection.
If you need help with any software application program you are using, see the documentation that came with that program for technical support information.
Contents Introduction VGA Driver s ........................ Optional Equipment ........................ System Memor y ........................ Cache Memor y ........................ Video Memor y ........................ Microprocesso r .............
Checking System Memory ........................ 2-4 Setting the Diskette Drive(s) ........................ 2-4 The Fixed Disk Setup Option .................................... 2-5 Defining Your Own Drive Type ........................ 2-5 The Advanced System Setup Option .
Replacing the Option Card Connector Board ........... Adding Video Memory ........................ Installing the Video Chips ........................ Installing External Cache ........................ Installing the Cache Chips ......................
Mouse Problems Controller Problems External Cache Problems Appendix A Specifications 6-12 6-13 6-13 CPU and Memory Controllers Interfaces Mass storage Keyboard SETUP Program Physical Characteristics P.
Chapter 1 Setting Up Your System This chapter briefly describes how to set up your computer. It includes the following information: 0 Getting started 0 Connecting peripheral devices 0 Turning the computer on and off. Getting Started Follow the instructions below for choosing a location for your new system and unpacking it.
0 No electromagnetic interference. Do not place your system too close to any electrical device, such as a telephone or television, which generates an electromagnetic field. 0 Appropriate power source. Connect all your equipment with the appropriate power cords for the power source in your area.
Connecting Peripheral Devices Use the illustration below to locate the ports on the back of your system as you connect the keyboard, monitor, printer, and other devices. monitorcable power inlet poweroutlet MOUSE PA RA LLEL Connecting a Keyboard To connect a keyboard, hold the cable connector so the arrow on the connector faces up.
Caution Although the connectors and ports for the mouse and keyboard are physically identical, they cannot be used interchangeably. Be sure to plug the mouse connector into the MOUSEport, or you may damage your system. If your system has not already been configured, you may need to install a mouse driver.
4. If the connector has retaining screws, tighten them. 5. Plug the monitor’s power cord into the power inlet on the back of the monitor. 6. Plug the other end of the power cord into a grounded electrical outlet or into the power outlet on the back of the computer.
Using the serial ports If you have a printer, a modem, or a mouse with a serial interface, you can connect it to one of the serial (RS-232C) ports on the back of the computer. Make sure you have a cable compatible with a DB-9P connector. To connect a serial device, insert the connector into one of the ports marked COM1 and COMC.
Turning On the Computer After you set up your system, you are ready to turn on the power. Use the illustration below to identify the features of your system’s front panel. (Your computer’s front panel may look a bit different from the one illustrated in this manual.
0 Always wait at least 20 seconds after you turn off the power before you turn it on again to prevent possible damage to the computer’s electrical circuitry. 0 Do not leave a beverage near your system. Spilled liquid can damage the circuitry of your equipment.
If your system is configured to automatically load a program (such as Microsoft Windows or a word processing program), you see the first menu or screen display of that program. If not, you may see the operating system prompt, such as C: > or A: >.
Chapter 2 Running the SETUP Program You may need to run the SETUP program the first time you use your computer. If your system came unconfigured, you need to define how it is set up. If your system was configured for you, you may want to check the settings or adjust the date and time.
Starting the SETUP Program When you start your computer, it performs some power-on diagnostics. During these diagnostics, you may see the following message: Press <F2> to enter SETUP (In SETUP, you can disable this message, if desired.) Press F2 to run SETUP.
SETUP function keys (continued) Key Function F5or- F6 or + or Spacebar F9 Selectsthe previousvalue Selectsthe next value Loadsthe factory default valuesforthe SEIUPoptionson the current Screen FlO Ign.
Setting the Video Display Type The Video System option allows you to define the type of display you are using. If you have a VGA monitor that you connected to the computer’s built-in VGA port, select EGA / VGA .
The Fixed Disk Setup Option The Fixed Disk Setup options define the types of hard disk drives you installed in your system. When you select this option, you see the Fixed Disk Setup screen. From this screen, select Fixed Disk 0 Controlor Fixed Disk 1 Control.
The Advanced System Setup Option When you select this option from the Main Menu, you see the Advanced System Setup screen. From this screen, you can select options that allow you to configure the computer’s cache memory and shadow memory, and define the advanced chipset options.
Your computer can access RAM faster than ROM. The options on this screen allow your system to copy the contents of its system and/ or video ROM into RAM. When you use shadowing, your system can perform certain operations faster, providing a significant increase in performance.
Setting the Boot Options When you select Boot Options from the Main Menu, you see the Boot Options screen. These options allow you to define the boot sequence and determine the information you see on the screen when you start up your system.
The Pause on POST errors option allows you to disable the error message and the message Press <Al> to resume, <F2> to Setup that you see when the system identifies a configuration error. If you disable this option, the system ignores configuration errors it finds during power-on diagnostics and starts as it normally would.
If you enable the Password on boot option, you must enter the Supervisor or User password each time you turn on the system. If you do not enable this option but you have defined passwords, you must enter the password each time you start the SETUP program.
3. Then delete the Supervisor password the same way. Note You must delete the User password before SETUP will allow you to access the Supervisor password.
The System Summary Option When you select the System Summary option from the Main Menu, the SETUP program displays a summary of the configuration settings for your system. This is the same screen you see during system startup. You can choose not to have the system display this screen so system startup is faster.
Post-SETUP Procedures After you run SETUP for the first time, you may need to install the operating system on your computer (if it is not already installed). See your operating system manual for instructions. Once you have installed your operating system, install any software you plan to use.
Chapter 3 Using Your Computer This chapter briefly describes the following operations: 0 Working comfortably 0 Inserting and removing diskettes 0 Stopping a command or program 0 Resetting the computer 0 Using the password 0 Changing the processor speed.
Place your monitor directly in front of you and sit about an arm’s length away from it. The top of the screen should be slightly below your eye level so you look down at the screen. Position the monitor so that no light is reflected from the screen.
To insert a diskette into a 5.25-inch drive, hold the diskette with the label facing up and the read/ write slot leading into the drive. When the diskette is completely in the drive, turn down the latch to secure the diskette in the drive.
Resetting the Computer Occasionally, you may want to clear the computer’s memory without turning it off. You can do this by resetting the computer. For example, if an error occurs and the computer does not respond to your keyboard entries, you can reset it to reload your operating system and try again.
If resetting the computer does not solve the problem, you need to turn it off and on again. Remove any diskette(s) from the diskette drive(s), turn off the computer, and wait 20 seconds. If you do not have a hard disk drive, insert a bootable diskette in drive A.
You must turn off the computer and start over. You can reset the computer using the RESETbutton but you cannot reset the computer by pressing Ctrl Alt and Del. Note If you want to change or delete your password, you must run the SETUP program as described in Chapter 2.
You can change the processor speed temporarily by entering one of the following commands from the numeric keypad on your keyboard : 0 To select slow speed, press Ctrl Alt and then press the -key on the numeric keypad. This turns off the speed light. 0 To select fast speed, press Ctrl Alt and press + on the numeric keypad.
Chapter 4 lnstaIling and Removing Options You can enhance the performance of your computer by adding optional equipment such as system, video, or cache memory modules, option cards, or a microprocessor upgrade. This chapter first describes how to remove your computer’s cover to install options and how to replace the cover when you are finished.
Removing the Cover You need to remove the computer’s cover to install any of the options described in this chapter or to install or remove a disk drive (as described in Chapter 5). Follow these steps to remove the cover: 1. 2. 3. 4. 5. Turn off the computer and then any peripheral devices (including the monitor and printer).
6. Grasp the sides of the cover and lift it straight up, as shown below: 7. Set the cover aside. 8. Ground yourself to the computer by touching the metal surface of the back panel. WARNING Be sure to ground yourself by touching the back panel of the computer every time you remove the cover.
Replacing the Cover When you are ready to replace the computer’s cover, follow these steps: 1. Make sure all the internal components are installed properly. 2. Check all cable connections, especially those that might have been loosened during your work.
Locating the Internal Components As you follow the instructions in this chapter, refer to the illustration below to locate the different components inside your computer.
Changing the Jumper Settings The main system board in your computer has a number of jumpers that control certain functions. These jumpers are preset at the factory to default positions. See the illustration below to locate the jumpers on the system board.
Use the information in the following tables to change jumper settings, if necessary. Jumpersettings * Factory setting ** You can use MS-DOS to automatically reassign parallel and serial ports.
Edema/cache jumper settings* * If you have no external cache installed, the position of these jumpersdoes not matter. Setting the Jumpers If you need to change any jumper settings, follow these steps: 1. Refer to the illustration on page 4-6 to locate the jumpers.
Setting jumpers To move a jumper from one position to the other, use needle- nose pliers or tweezers to pull it off its pins and gently move it to the desired position. Caution Be careful not to bend the jumper pins or damage any components on the main system board.
Installing Memory Modules (SMMs) Your computer comes with 4MB of memory on a SIMM. By installing additional SIMMs, you can increase the amount of memory in your computer up to 64MB. There are two SIMM sockets on the main system board. You can install 4MB, SMB, 16MB, and 32MB SIMMs.
Use only tin-plated, 32-bit or 36-bit, 72-pin, fast-page mode SIMMs that operate at an access speed of 70ns (nanoseconds) or faster. Be sure all the SIMMs operate at the same speed. Inserting SIMMs Make sure the computer is turned off and then follow these steps to install SIMMs: 1.
5. Push the SIMM into the socket until it is seated firmly in the slot. Then tilt it upright, as shown below, guiding the hole at each end of the SIMM over the retaining post at each end of the SIMM socket. If it does not go in smoothly, do not force it; pull it all the way out and try again.
4. Use your fingers or a small screwdriver to carefully pull away the metal tabs that secure the SIMM at each end, as shown below. 5. As you pull away the tabs, the SIMM falls to the side. Remove it from the socket. 6. If necessary, follow the same procedure to remove the other SIMM.
lnstalling an Option Card This section explains how to install option cards in your computer. Your computer has three 16-bit, full-length slots and two S-bit, half-length slots to accommodate a total of five option cards.
Caution Make sure the power requirements for the option cards you install do not exceed the power supply limitations. See your option card manual(s) for the power requirements. Then check Appendix A for the option slot power limits. Refer to the illustrations below and follow these steps to install an option card: 1.
2. Remove the retaining screw securing the option slot cover to the computer, as shown below. (Keep the screw to secure the option card to the computer.) 3. Slide out the slot cover and set it aside. (Store it in a safe place in case you remove the option card later.
4. Hold the card along the top corners and guide it into the connector, as shown below. (If you are installing a full-length card, insert the front edge of the card into the corresponding guide inside the computer’s front panel.) Once the connectors reach the slot, push the card in firmly (but carefully) to insert it fully.
Removing an Option Card You may need to remove an option card to access components on the main system board-to change a jumper setting, for example. You may also want to remove a card if you no longer need it. Refer to the option card illustration on page 4-17 and follow these steps: 1.
2. Remove the two retaining screws securing the option card connector board to the back of the computer, as shown below. 3. Pull the board straight up and out of its socket and set it aside.
Replacing the Option Card Connector Board If you removed the option card connector board, follow these steps to replace it. Refer to the option card connector board illustration above. 1. Position the board above its slot and push it straight into the connector, as shown below.
Adding Video Memory Your computer comes with 512KB of video memory soldered onto the main system board. You can increase your video memory to 1MB by installing four video DRAM, 20-pin, 70ns or Sons, 256KB x 4-bit, DIP (Dual Inline Package) chips.
Caution To avoid generating static electricity and damaging the memory chips, ground yourself by touching the metal surface on the inside of the computer’s back panel. Then remain as stationary as possible while you install them. 3. Remove the memory chips from their package and inspect each one.
5. Gently press the chip halfway into the socket (to make sure it is correctly aligned). If the chip goes in at an angle, remove it with a chip puller or a small flat-head screwdriver and try again. 6. When the chip is properly positioned, push down firmly on both ends of the chip to make sure it is well-seated.
Cache memory configurations Installing the Cache Chips Follow these steps: 1. Locate the external cache memory sockets on the main system board, shown on page 4-5.
4. 5. 6. Position one of the cache chips over the first socket as shown below, aligning the pins on the chip with the holes in the socket. Make sure the small notch on the end of the chip is aligned with the corresponding notch on the socket. Gently press the chip halfway into the socket (to make sure it is correctly aligned).
10. Run SETUP to enable the External Cache option and check that the System shadow and Video shadow options are enabled. You select these options from the Advanced System Setup menu. Make sure you save your settings as you leave SETUP (see Chapter 2).
Microprocessor upgrade steps Replacing the Processor Chip Be sure to remove the option card connector board before you follow the steps below to replace your microprocessor; see page 4-18 for instructions. 1. Use the illustration on page 4-5 to locate the microprocessor.
3. If you use a chip puller, position the puller between the processor chip and the socket. You can also use a small, flat-edged screwdriver instead of a chip puller. Carefully wedge the tip of the screwdriver between the processor chip and the socket.
6. 7. 8. 9. 10 Position the processor chip over the socket, aligning the notched edge of the chip (marked with a dot) with pin 1 on the socket, as shown below. A corresponding notch is drawn on the circuit board under the socket. dot pin 1 Make sure the pins in the processor chip are directly over the holes in the socket.
post-installation Procedures After you install or remove options such as memory modules or a microprocessor, you must run SETUP to update the computer’s configuration. See Chapter 2 for instructions. Additionally, you may need to add some commands to your configuration files.
Chapter 5 Installing and Removing Drives This chapter describes how to install and remove optional drives in your computer. You can use these instructions to install a variety of devices, including hard disk drives, a diskette drive, a tape drive, a CD-ROM drive, or an optical drive.
lnstalling a Hard Disk Drive in the lnternaI Drive Bay Your computer may have a hard disk drive already installed in the internal drive bay. If not, you can install a l-inch high by 31/2-inch wide drive in this bay.
Removing the Mounting Fames If there are mounting frames attached to your hard disk drive, you need to remove them before you can install the drive. Follow these steps: 1. On your drive, there may be a plastic guiderail and metal grounding plate attached to one of the mounting frames.
Connecting the Hard Disk Drive Cables To connect the hard disk drive to the computer, you need to connect two cables: the hard disk drive ribbon cable and a power supply cable.
2. Locate the hard disk drive connector on the system board. pin 1 Position the system board connector on the cable so that the red wire aligns with pin 1 of the connector on the system board. There is a “1” printed on the system board to identify pin 1.
Connecting the drive and power cables to the drive Follow the steps below to connect the hard disk drive ribbon cable and a power supply cable to the drive: 1. Locate the hard disk drive connector on the end of the hard disk drive ribbon cable. 2. Locate pin 1 on the drive connector.
5. Locate one of the power supply cables that lead from the power supply. (They have multi-colored wires and a plastic connector on the end .) 6. Position the power supply cable connector so that its notched corners line up with the notched corners of the power supply connector on the hard disk drive.
Installing the Hard Disk Below the Mounting Bracket If you have a l-inch tall hard disk drive, you can install it below the hard disk drive mounting bracket. Refer to the illustrations below and follow these steps: 1. Remove the screw securing the mounting bracket to the base of the computer, as shown below.
4. Align the hard disk drive so that the cables lead toward the diskette drive bays and the four screw holes on the base of the drive are above the four pegs, as shown below. pegs 5. Gently lower the drive over the pegs. When the pegs are inserted in the screw holes on the base of the hard disk drive, the drive will not move from side to side.
6. Lower the mounting bracket over the hard disk drive, making sure that the slots in the mounting bracket fit over the tabs on the base of the computer. 7. Slide the bracket toward the side of the computer, as shown below, until the tabs hold the bracket in place.
Installing the Hard Disk On the Mounting Bracket You can install a hard disk drive on top of the mounting bracket rather than under it. Refer to the illustration of the mounting bracket on page 5-8 and the one below while following these steps: 1.
5. Secure the bracket to the drive with four screws Note If you plan to install two hard disk drives, you must use flat-head screws to secure the second drive to the mounting bracket. You can purchase flat-head screws at any hardware store; request this size: #6-32UNC x 8 FH, M,+.
Removing a Hard Disk Drive From the Internal Drive Bay To remove a hard disk drive, reverse the installation steps outlined above. Then disconnect the hard disk drive ribbon cable and the power supply cable from the back of the drive.
Installing a Drive in the Upper External Drive Bay Your system comes with a 3.5-inch diskette drive installed in the lower externally accessible drive bay. You can also install a diskette drive, a tape drive, a CD-ROM, or an optical drive in the upper externally accessible drive bay.
Keep the faceplate in a safe place in case you remove a drive later (or you are installing a drive that you don’t need to access). 2. Remove any brackets or mounting frames from the drive. See page 5-3 for instructions. 3. Slide the drive into the bay until it is flush with the front of the computer.
4. Align the slots at the side of the drive bay with the mounting holes in the drive. Then secure both sides of the drive to the drive bay using the retaining screws. Connecting the Drive and Power Cables To connect the drive to the computer, you need to connect both the drive ribbon cable and a power supply cable.
2. If you are installing a drive with a card-edge connector, make sure you align the key-way (the plastic divider) with the gap in the drive connector, as shown below. If you are installing a 3.5-inch diskette drive with a header connector in the lower bay, see page 5-19 for instructions on connecting this cable.
4. Align the notched corners of the power supply connector with the notched corners of the drive’s power supply connector (such as the one shown below).
3. Reach behind the drive and gently push it to the front of the bay; then pull it out of the slot. 4. Once you have removed the drive, replace the faceplate by inserting one side of the plate, then gently guiding the other side into place. You will hear it snap into place.
3. Locate the multi-colored power supply cable with the small connector. This cable is attached to the system board rather than the power supply. 4. Position the power supply cable connector so that the holes fit over all the pins. The red wire on the cable will align with pin 1 identified at the power connector on the circuit board of the drive.
Chapter 6 Troubleshooting If you have any problems as you set up and use your computer, refer to this chapter. You can correct most problems by adjusting a cable connection, repeating a software procedure, or resetting the computer.
Serial number: Look on the back panel of the computer to find the serial number. System BIOS version: Restart your system. You’ll see the system BIOS version number on the screen when your system performs power-on diagnostics.
The Computer Will Not Start The power light is on, but the computer does not start Replace your main operating system diskette and turn on the computer again. The computer does not start and the powerlight is not lit Make sure the power cord is securely connected to both the AC inlet on the back panel and an electrical outlet.
If you replace the microprocessor, make sure the new processor chip is installed correctly. Also make sure the jumpers are set correctly and that pin 1 on the chip is connected with pin 1 on the system board. See Chapter 4. The Computer Does Not Respond The computer locks up.
Keyboard Problems The screen displaysa keyboard error message when you turn on or reset the computer. Make sure the keyboard is securely connected to the keyboard port and not the mouse port. Nothing happens when you type on the keyboard. See “The Computer Does Not Respond,” above.
The powerswitch is on but the powerlight is not on. Turn off the monitor’s power, wait five seconds, and turn it back on. If the light still does not come on, check the electrical outlet for power. Turn off your monitor and unplug it from the outlet.
You may have a defective diskette. Try copying the files from the bad diskette to a new diskette. Something is wrong with the data in the files If you are using MS-DOS, run CHKDSK to repair the files. You may also be able to use special utilities or diagnostics to solve this problem.
Hard Disk Drive Problems A newly-installed hard disk drive is not working properly or its performance is not what you expect. Make sure you have installed the drive correctly and check all cable connections. Also, check the drive’s jumper settings. You see a hard disk drive error when you start your system.
You have been using your hard disk drive successfully for some time but notice a redduction in performance. The data on the disk may have become fragmented.
Software Problems 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 do not have a hard disk, make sure the correct diskette is in the diskette drive.
The printer prints garbled information. Check the printer manual for the printer’s correct DIP switch or control panel settings. Also, make sure you have the proper drivers installed for your printer and make sure you’ve selected the correct printer within your software application.
Memory Module Problems The memory count displayed by the power-on diagnostics program is incorrect. You may have installed the SIMMs incorrectly. They may be the wrong type or speed, or they may not be inserted all the way. See Chapter 4 for information on installing SIMMs.
Extrenal Cache Problems The amount of cache displayed by the power-on diagnostics program is inconect. You may have installed the external cache chips incorrectly. They may be the wrong type, or they may not be inserted all the way. Also, you may not have changed the SETUP program or the jumpers to recognize the new cache.
Appendix A Specifications CPU and Memory 32-bit CPU System speed Memory ROM Video RAM Shadow RAM Intel 486SW 25 microprocessor; upgradable to 486SXJ 33,486DW 33, 486DX2/ 50, or 486DX2/ 66 Fast and slo.
Memory relocation Cache Supports relocation of 256KB of memory from A0000h to BFFFFh and D0000h to EFFFFh to extended memory 8KB of internal cache (built into the microprocessor); supports 64KB, 128KB.
lnterfaces Monitor Parallel Serial VGA interface for fixed or multi-frequency monitor built into system board; 15-pin, D-shell connector One standard S-bit parallel bi-directional interface built into.
Mass storage Internal mounts: Two 31/2-inch wide, one-inch high drives; with three or more option cards installed: the power supply supports only one internal drive Externally accessible mounts: One 31/2-inch wide, one-inch high drive and one 51/4-inch wide, half-height drive Diskette drives 3.
Physical Characteristics width 15.6 inches (396 mm) Depth 14.5 inches (368 mm) Height 4.1 inches (104 mm) Weight 15 lb (6.8 kg), without drives or keyboard Power Supply Type 65 Watt, UL listed, fan-cooled Input ranges Maximum outputs 110-240 VAC +5 VDC at 7.
Environmental Requirements Video Resolutions and Colors * Non-interlaced and interlaced A-6 Specifications.
Tested Operating Environments Although your system will run most software applications: the following operating environments have been tested for compatibility with your system. Microsoft MS-DOS versions 3.l and later Novell DR DOS® Novell NetWare*2.
Hard Disk Drive Types A-S Specifications.
Hard disk drive types (continued) * Actual formatted size may be slightly different than size on drive label; you cannot change thisvalue. Specifications A-9.
Drive Option Information Hard disk drive options for high-capacity, 1-inch IDE drives * Select 1 or none for the precomp value. If neither of these optionsare available, select the maximum available precomp value.
IDEhard disk drive jumpersettings * CS(cable selection) can be jumpered for any configuration. When CSis used, the drive is a master if pin 28 isgrounded and a slave if pin 28 is not grounded.
Serial port connector pin assignments (CN4 and CN5) DMA Assignments A-12 Specifications.
Hardware Interrupts Specifications A-13.
System Memory Map I A-14 Specifications.
System l/O Address Map Specifications A-15.
System I/O addressmap (continued) Hex address Assigned device 3A0 - 3AF SDLC, bieynchronous2 380 - 3BF Monochrome display and printeradapter 3CO-3CF Enhanced graphicsadapter 3DO-3DF Colorgraphicsmonit.
Index A Advanced Chipset Control option, 2-7 Advanced System Setup option, 2-6-7 Application programs compatibility, A-7 copy protected, 3-6 installing, 2-13 problems, 6-10 requiring slow speed, 3-6 running under MS-DOS, 2-4 stopping, 3-3 video drivers, Intro-2 Auto-sensing, 2-5, 6-8, A-2 AUTOEXEC.
Configuration cache memory, 2-6, 4-23-24 changing, 2-1, 2-12 drive, 2-4, 5-20 files, 4-30, 6-2 SIMM, 2-4,4-10 system, 6-l Connecting keyboard, l-3 monitor, l-4-5 mouse, l-34, l-6 power cord, l-6 print.
Diskette drive, problems, 6-7 protective card, 1-8 removing, 5-18 types, 5-2, A-4 Diskette(s) defective, 6-7 formatted, 6-6 inserting, 3-2 key, 3-6, 6-10 label, 3-2-3 metal shutter, 3-2 problems, 6-6 .
Hard disk drive, preformatted, 2-5 problems, 6-8 removing, 5-13, 5-18 SETUP option, 2-5 slave, 5-12 types, 5-2, A-8-9 user-defined, 2-5 Heat sink, 4-14, 4-26, 4-29 Height, computer, A-5 Help screen, S.
Memory, configuration, 4-10 conventional, 2-4 extended, 2-4, A-14 installing, Intro-3, 4-l0-12 insufficient, 6-10 modules, see SIMMs problems, 6-12 RAM, Intro-l-3, A-l removing, 4-12-13 ROM, 2-1, 2-6,.
P Parallel port connecting, l-5 connector, A-l1 jumper, 4-7 location, l-3 reassigning, 4-7 Password, Intro-l problems, 6-9 Supervisor, 2-9, 2-l1, 3-5 User, 2-9-10, 3-5 using, 3-5-6 Pause key, l-8, 3-3.
Serial ports connecting, l-3-6 connector, 1-6, A-3, A-12 controller, A-3 description, Intro-l jumpers, 4-7 location, l-3 reassigning, 4-7 SETUP program advanced chipset control, 2-7 advanced system se.
System BIOS, Intro-l-2, 2-1, 2-4, 4-5, 6-1-2, A-l board, 4-5, 4-7, 4-14, 5-5 configuration, 2-3, 2-12, 6-l I/O address map, A-15-16 identifying, 6-l memory, Intro-l-3, l-8, 2-4, 2-6, A-l memory map, A.
デバイスEpson EL 486UC+の購入後に（又は購入する前であっても）重要なポイントは、説明書をよく読むことです。その単純な理由はいくつかあります：
Epson EL 486UC+をまだ購入していないなら、この製品の基本情報を理解する良い機会です。まずは上にある説明書の最初のページをご覧ください。そこにはEpson EL 486UC+の技術情報の概要が記載されているはずです。デバイスがあなたのニーズを満たすかどうかは、ここで確認しましょう。Epson EL 486UC+の取扱説明書の次のページをよく読むことにより、製品の全機能やその取り扱いに関する情報を知ることができます。Epson EL 486UC+で得られた情報は、きっとあなたの購入の決断を手助けしてくれることでしょう。
Epson EL 486UC+を既にお持ちだが、まだ読んでいない場合は、上記の理由によりそれを行うべきです。そうすることにより機能を適切に使用しているか、又はEpson EL 486UC+の不適切な取り扱いによりその寿命を短くする危険を犯していないかどうかを知ることができます。
ですが、ユーザガイドが果たす重要な役割の一つは、Epson EL 486UC+に関する問題の解決を支援することです。そこにはほとんどの場合、トラブルシューティング、すなわちEpson EL 486UC+デバイスで最もよく起こりうる故障・不良とそれらの対処法についてのアドバイスを見つけることができるはずです。たとえ問題を解決できなかった場合でも、説明書にはカスタマー・サービスセンター又は最寄りのサービスセンターへの問い合わせ先等、次の対処法についての指示があるはずです。
