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Epson Equity II Troubleshooting, The Computer Fails To Start Up, The Video Display Does Not Appear

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Chapter 5

Troubleshooting

You should not encounter any serious difficulties as you set up and use the Equity II. But if anything out of the ordinary happens, refer to this chapter. Usually such a situation requires nothing more than adjusting a cable connection, repeating a software procedure, or resetting the computer.

You can use the suggestions here to solve most problems you may encounter. If the recommended solution does not work, consult an Epson dealer about servicing the computer.

WARNING: If you need to turn off the computer for any reason, always wait at least 5 seconds before you turn it back on. You can damage the Equity II if you turn it off and on rapidly.

The Computer Fails To Start Up

If the computer does not start up when you turn on the power switch, follow these steps to solve the problem:

1.Check to see if the power LED lamp on the front panel is lit. If it is not, remove any diskettes and then turn off the power. Wait 5 sec- onds and then turn on the power again.

2.If the power LED lamp still does not light up, turn off the power again. Check to see that the power cable is securely connected to both the AC input on the back panel and the electrical outlet. Then turn on the power.

3.If the computer still does not start up, check the electrical outlet. Plug a portable lamp into the outlet you are using for the computer and turn it on to see if the outlet supplies power.

The Video Display Does Not Appear

If the computer starts up but no image appears on the screen, follow these steps to solve the problem:

1.Check if the power indicator on the video monitor is lit. If it is not, turn off the monitor’s power, wait 5 seconds, then turn on the power again. Wait to see if a screen image appears.

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Contents

Equity™ User’s Guide Page Page Equity II User’s Guide (Page 18) G W-BASICfor the Equity II/III (Pages 7-203to 7-207) MS-DOSfor the Equity II/III (Page 10-16) Contents Appendixes Figures Tables Introduction How To Use This Manual Setting Up Your System Unpacking Choosing a Location Choose a location that provides the following: Arranging the Components Figure 1-2.Alternate system arrangement The Front Panel The Back Panel Figure 1-4.Back panel The back panel components work as follows: Connecting the Power Cord Connecting a Video Monitor Connecting the Keyboard Figure 1-7.Connecting the keyboard Connecting a Printer Figure 1-9.Printer placement Figure 1-10.Connecting a printer 5.Plug the printer’s power cable into an electrical outlet Serial interface The Equity II character set Setting the DIP Switches Table 1-1.Set 1 DIP switches Switch (internal parallel Table l-2 and the descriptions below explain how to set the DIP switches in set l-2 Note: Switches 2-l through 2-4 and switch 2-6 are not used. Leave them Table 1-2.Set 2 DIP switches 8 (internal serial Using the Equity 64g KB RAM available Inserting and Removing Diskettes Special Keys on the Equity II Keyboard Using MS-DOSon the Equity Selecting an Execution Speed Resetting the Computer Turning Off the Equity Using Disks and Disk Drives How Disks Work Choosing Diskettes for the Equity Table 3-lshows what types of diskettes to use in the two types of drives Table 3-1. Drive/diskette compatibility Caring for Disks and Disk Drives Protecting your Data Using a Single Floppy Disk Drive Using a Hard Disk Drive Page Installing Option Cards Removing the Main Unit Cover As shown in Figure Figure 4-1. Back panel screws Figure 4-2.Side screws under plastic inserts Figure 4-3.Removing the main unit cover Installing an Option Card Figure 4-d. Inserting an option card 7.Keep the card’s packing materials in case you need to remove the card later Removing an access slot cover Replacing the Main Unit Cover Post-InstallationAdjustments Removing an Option Card Using a Mouse Using a Modem Troubleshooting The Computer Fails To Start Up The Video Display Does Not Appear The Computer Hangs Up or Freezes Floppy Disk Problems Hard Disk Problems Software Problems Printer Problems Option Card Problems Memory Problems The Battery Is Low CMOS battery needs replacing Page Equity II Specifications CPU and Memory Controllers Interfaces Power Supply Mass Storage Keyboard Environmental Requirements (5"to35T) Physical Characteristics (CPU Only) Power Requirements Options Glossary Code Command Configuration Control code CPU Disk drive has a Diskette DOS Double-density Hardware Any physical Highdensity data Input/output port Monochrome monitor Mouse MS-DOS An operating system from Microsoft. See DOS, Operating system Operating system Program Read Read/write head Reset RGB Software The programs that System diskette Write-protect tab Index Page Page Page Page Page Page Page Page 22 B-6 16 RS-232Cport 9-10, 16, A-2, B-6 secondary B-7 10-11 21, 27 12 A-4