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Epson Y14499113001 8 Setting the DIP Switches, Figure 1-11.Location of DIP switches

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8 Setting the DIP Switches

The DIP switches on the Equity I+ are set to provide your system with information about itself. Each time you turn on your system, it checks the DIP switch settings to determine the keyboard type, coprocessor status, memory size, monitor type, number of floppy disk drives, and the typo of interfaces being used. The DIP switches are located underneath the cover on the front of your main unit, below the disk drives, as shown in Figure 1-11.

Figure 1-11. Location of DIP switches

Your Epson dealer should have set these switches for you. However, read this section to be sure the settings match your system configuration. If you upgrade your computer later (by adding a hard disk drive for example) you may need to alter the DIP switch settings.

Note: Set the DIP switches only while your computer is off. Software programs check the settings each time you turn on the system, so do not change the settings while a program is running.

The Equity I+ has two sets of DIP switches; set 1 contains eight switches which control the computer’s internal operations, and set 2 contains four switches which control the parallel and serial ports. A label inside the DIP switch cover show; the functions of each DIP switch and the factory settings. See Figure 1- 12.

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Contents

and Equity™ I + User’s Guide IMPORTANT NOTICE DISCLAIMER OF WARRANTY COPYRIGHT NOTICE TRADEMARKS Epson is a registered trademark of Seiko Epson Corporation Note: WARNING Contents Appendixes Figures Tables Introduction How to Use This Manual Setting Up Your System 1 Unpacking Removing the disk drive protector sheet 2 Choosing a Location 3 Arranging the Components The The front panel 4 Connecting the Power Cord 5 Connecting the Video Monitor 6 Connecting the Keyboard Page 7 Connecting the Printer Parallel interface PARALLEL Serial interface The Equity I+ character set 8 Setting the DIP Switches DIP switch set 1 (internal operations) Page DIP switch set 2 (parallel and serial port operations) Page 9Turning On the Computer Safety rules Initial setup procedure Initial screen display 640KB OK Non-systemdisk or disk error Insert system diskette in drive A: and strike any key when ready Page Using Your Equity I+ Special Keys Selecting Execution Speed Resetting the Computer Turning Off the Computer Using Disks and Disk Drives How disks work Choosing diskettes for the Equity I+ Caring for your disks and disk drives Page Inserting and removing diskettes Write-protectingdiskettes Making backup copies Using a single floppy disk drive Using a hard disk drive Page Installing Option Cards Removing the Cover Page Inserting the Option Card Page Removing an access slot cover Replacing the Cover Post-installationSetup Removing Option Cards Troubleshooting The Computer Fails to Start Up The Video Display Does Not Appear The Computer Locks Up or Freezes Floppy Disk Problems Hard Disk Problems Software Problems Printer Problems Option Card Problems Changing Jumper Settings Jumper J1, Floppy Disk Controller FRONT 6M and 6N 7M and 7N Figure A-2.Jumper locutions A-2 Jumper J2, Parity RAM Specifications Main Unit Keyboard Mass Storage Power Supply Environmental Requirements Physical Characteristics (CPU Only) Video and Display Options Glossary Command Configuration Control code CPU Cursor Disk drive Diskette Double-density File Floppy disk H a r d w a r e Input/output port Interface Jumper Kilobyte (KB) Monochrome monitor MS-DOS Operating system Option card Parallel Read Read/write head Reset RGB ROM Tracks Write To store data on a disk Write-protect C-7 Index Index-2 Page Index-4 Page Diagnostics for the EquityTM I+ Page Contents 6 Moving the Hard Disk 7 System-dependentUtilities Appendixes Tables Introduction Page Running the Diagnostics Starting the Diagnostics The Power-onSelf Test The OPERATION MENU - Format hard disk ;- Format diskette 4- System diagnostics 5- Prepare hard disk for moving Diagnostics and MS-DOSCommands A:HDSIT Setting Up the System Using the Setup Program ESC ** SAVE SETTINGS Exit without saving ** EXIT AND SAVE Setting the Real-timeClock 19:lt5:55 -Time 12-31-1986 Date Enter. You hh:mm:ss Changing Serial Port (RS-232C)Settings Page Chapter Formatting a Hard Disk Formatting and Checking Options l- Conditional format (Normal) - Unconditional format : - Destructive surface analysis Enter drive letter (C/D) Conditional Format (Normal) Format cancelled Press ENTER to return to the menu Now formatting Format finished Flagging bad tracks Unconditional Format Destructive Surface Analysis Page Non-destructiveSurface Analysis Formatting a Diskette Insert new diskette for drive A: and strike ENTER when ready Performing System Diagnostics Using the System Diagnostics Program 9- P a r a l l e l p o r t (pr9 -S e r i a l port ~(RS-22 2- Dot-matrixpri 17- Hard disk drfires4 Modify DEVICE LIST 1 - Add devices 2 - fiel+te devices 0 - Exit and IIICSS;I~~T axd Y am1 Enter and Enter I x~cl System Board Check Memory Check 640 KB OK Keyboard Check - United Kingdom : - French 4 - German 6- Spanish Monochrome Display Adapter and CRT Check Monochrome adapter check Attribute check Character set check Video check Color Graphics Adapter and CRT Check 1 - Color graphics adapter check - Attribute check z - Character set check 4 - 4$Gcolumn character set check 0 ad Enter Color graphics adapter check 1 ad 2 ad Enter N and Enter Enter. If Enter to 40-columncharacter set check Y and Enter Page Page Enter. To Y ad Enter check N and Enter Floppy Disk Drives and Controller Check 1 - Sequential seek check - Random seek check : - Write, read check 4 - Speed check Current track is Random seek check Write, read check If using drive A, remove your Diagnostics Disk Math Coprocessor Check (8087) Parallel Port (Printer Interface) Check Parallel Port (on Video Adapter) Check Serial Port (RS-232C)Check Alternate Serial Port Check Dot-matrixPrinter Check Hard Disk Drives and Controller Check l- Seek check 2- Write, read check 3 - Error detection. and correction check 4 - Read, verify check $? - Eqit Page READ GOOD Moving the Hard Disk System-dependentUtilities reset The HELP Utility Page The ROMBIOS Utility The SYSTAT Utility Page ESC Error Codes and Messages Error code System board Error code Message Color graphics adapter and CRT 703COPROCESSOR INVALID OPERATION MASK ERROR Parallel port Parallel port on video adapter Error code Message ERROR DTR DSR, DSR ALWAYS HIGH/LOW Alternate serial port WJ3 Dot-matrix printer Power-onDiagnostics System Device Check Clock and CMOS RAM Check 161~System options not set (Run SETUP in DIAGNOSTICS) RAM Check Keyboard Controller and Keyboard Check (Ctrl Alt Del) Floppy Disk Drive Seek Check Index