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Epson 500 Series lnstalling a Numeric Coprocessor, Caution, Connecting Optional Devices, 1. Remove the keyboard as described on page

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lnstalling a Numeric Coprocessor

Your computer has a socket for a numeric (math) coprocessor, which can be used for the Cyrix 83S87-25 coprocessor. Installing a numeric coprocessor speeds up your computer's numeric calculations and graphic displays when you are using certain application software. Contact the EPSON connection or your sales representative for additional information on choosing a numeric coprocessor compatible with the Cyrix 486SLC2-50 CPU.

The coprocessor chip can be easily damaged and is expensive to replace; so if you don’t feel confident about installing it yourself, ask your Authorized EPSON Servicer for assistance.

To install the coprocessor, follow these steps:1. Remove the keyboard as described on page 4-11.

Caution

Make sure you ground yourself before you touch the coprocessor chip. Then remain as stationary while you install it. Do not touch the pins on the chips; h a n d l e t h e c o p r o c e s s o r o n l y b y t h e

Connecting Optional Devices 4-15

Contents

Page DISCLAIMER OF WARRANTY COPYRIGHT NOTICE TRADEMARKS Inc Copyright © 1993 by Epson America, Inc all warnings and instructions market on the computer •Do not let the computer's power cord become damaged or frayed Except as specifically explained in this User's Guide, do not attempt •If you plan to use the computer in Germany, observe the following: Beim Anschluß des Computers an die Netzversorgung muß S'assurer aussi que cette intenste ne depasse jamails la somme de Contents Chapter 3 Powering the Computer Using the AC Adapter Using the Battery Pack Replacing the Battery Pack Recharging the Battery Identifying Your System Error Messages The Computer Won’t Start Battery Problems AC Adapter Problems Controllers and Supply Physical Dimensions Standard Configuration Autosensing video port for an external color or monochrome VGA or SVGA monitor Port for a PS/2®-compatiblepointing device Trackball with drivers and utilities Port for a PS/2-compatibleexternal keyboard Rechargeable battery pack Optional Equipment Where to Get Help International marketing locations are listed at the end of this manual CompuServe On-lineSupport EPSON An introductory $15 credit on compuServe Your own user ID and password How to Use This Manual Conventions Used in This Manual SettingUp the Computer caution Identifying the System Parts LEDS LED functions Setting Up the Computer with the computer Setting Up the Computer Opening the Screen Connecting the Trackball Attaching the Trackball Turning On the Computer The Computer performs a series of power-onon diagnostics tests to check the circuit boards, memory, ports,. keyboard, and disk drives. It displays several messages during the diagnostics including this prompt: P r e s s < D e l e t e > If y o u w a n t t o r u n s e t u p Using Your Operating System Chapter Using Your Computer Taking Care of the Computer guidelinesto Backing Up Your Files Using the Password Function Typing the Password You see this prompt when the password feature is activated: Enter CURRENT Passsword: If you want to change your current password or disable the Chapter 5 for instructions. If you forget your password, call the Using the Keyboard Using Fn, F11, and F12 Using the Embedded Numeric Keypad Embedded numeric keys Resetting the Computer Turning Off the Computer Changing the CPU Speed Adjusting the LCD Screen Using Diskettes Using the Video Utilities and Drivers help SIMUL PANEL Using Your Computer CLMODE, and press Enter. YOU can also enter of the available hot keys 2-12Using Your Computer Powering the Computer Using the AC Adapter is designed to operate in 100 to 240 VAC ranges with a frequency electrical socket; see Appendix C for specifications Using the Battery Pack Pack Replacing the Battery Pack 4. Press down on the release buttons on the battery compartment cover and slide the cover toward you 5.Pull up on the cloth tab and lift out the low battery Recharging the Battery Extending Battery Life discharge completely; then recharge it. If this fails, replace it with a When your battery can no longer be recharged, please cannot disposal. NiCad and NiMH batteries are considered hazardous waste and should be recycled or disposed of properly Low Battery Indicator can use it again to power the computer without the AC adapter Using the Suspend/Resume Switch Using Setup to Conserve Battery Power Using Energy Wisely Connecting Optional Devices Connecting an External Monitor 3.If the connector has retaining screws, tighten them by hand or Using the External Monitor Connecting a Parallel Printer Connecting a Serial Device Note Connecting an External Keyboard Connecting a Pointing Device Connecting the Fax/Modem Telephone Line Adding Memory Modules or a Numeric coprocessor Removing the Keyboard 7.Open the top cover keyboard on top of the computer. Be careful not to strain or WARNING Be sure to ground yourself when you remove the keyboard If you are not properly grounded, you could generate an Installing a Memory Module 4.When the connector is firmly attached to the socket, insert and tighten the screw on the left side of the module lnstalling a Numeric Coprocessor To install the coprocessor, follow these steps: 1. Remove the keyboard as described on page Connecting Optional Devices 4-16Connecting Optional Devices Replacing the Keyboard 4-18Connecting Optional Devices Running Setup Running Setup Starting the Setup Program 5-2Running Setup Automatically Configuing Your system Changing the Basic Settings changing the Custom Settings 5-6Running Setup Changing the Power Management Settings Changing the Password Settings screen, you use the Change Text specify the password 5-8Running Setup 4 . Type the same password again and press Enter. (This confirms Appendix A Troubleshooting Troublseshooting A-1 A-2 Troubleshooting Error Messages If your computer does not start when you press the power button If you replace the battery pack and the computer does not work this battery until it reaches its maximum capacity AC Adapter Problems The LCD Screen is Blank If the computer starts up but no image appears on the LCD screen The Computer Lock Up Troubleshooting A-7 Make sure the suspend/resume switch is set to the left. The computer may just be suspended Ctrl Break 4.Try pressing NumLock. If you don't see the NumLock light the computer is probably locked up Diskette Problems Diskette Drive Problems Hard Disk Problems Software Problems A-12 Troubleshooting Trackball or Pointing Device Problems Caution CMOS Battery Problems A-14 Troubleshooting Fax/Modem The internal fax/modem that may be installed in your ActionNote Compatibility Built-inCommand Set AT Command Summary AT Command Summary (continued) Enables all result codes Disable long space disconnect &D1 1800 Hz guard tone in CCITT mode B-6Fax/Modem MNP Command Summary (continued) Disable XON/XOFF pass through, but still process Fax/Modem B-7 MNP Recall user profile 1 at power up Enable NMP5 data compression AT Register Summary Range AT Register Summary (continued) Fax/Modem B-9 Option Register S14 Bit mapped configuration register S22 Bit mapped configuration register S23 Bit mapped configuration register S27 Bit mapped configuration register MNP Register Summary S36 Negotiate failure treatment S46 Protocol selection S48 V.42 negotiation action Result Code Summary Specifications Main Unit Controllers and Connectors Input Devices Mass Storage Display Power Supply Specifications C-3 Environmental Requirements Power Source Requirements 120 volt power source requirements 240 volt power source requirements Europe Backlighting (or backlit) COM1 CONFlG.SYS file The speed which the CPU can execute commands. The Action Note Graphics LCD Light Emmitting Diode. An indicator light such as those used for the Local bus Math coprocessor Memory module MHz Numeric coprocessor Passive matrix Glossary The physical device inside a disk drive that reads and records data on the magnetic surface of a disk To reload a computer's operating system so you can retry a task or A standard serial interface. The ActionNote has a connector that lets Setup Timeout period Index Data communication software Fax/modem MNP command summary, B-6-8MNP register summary, B-12 on-linestate, B-3 option registers, B-10 result code summary, B-13 specifications, B-2 WinFax LlTE software, Intro-2, 4-10, B-1 Fn key problems, A-13 MS-DOS NiCad, NiMH battery pack pack see Battery pack(s) SimulSCAN utility password security, see Password timeout Index 6 Index Epson America (International) Epson International Marketing locations