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Epson Equity II The Computer Hangs Up or Freezes, Floppy Disk Problems

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2.Use the controls on the monitor to turn up the brightness and con- trast.

3.Remove any diskettes and then turn off the power switches on the monitor and the main unit. Check that the monitor’s power cable is securely connected to the electrical outlet and that the monitor cable is properly connected to both the monitor and the main unit. Turn on both power switches again.

4.Turn off the power switches on both the main unit and the monitor. Then check the electrical outlet for power. Plug a portable lamp into the outlet you are using for the monitor and turn it on to see if the outlet supplies power.

5.Check DIP switches l-5and l-6on the front panel of the main unit to see if they match your monitor type. See “Setting the DIP Switches” in Chapter 1 for the correct settings.

The Computer Hangs Up or Freezes

If the computer locks up and does not respond to the keyboard, try the following:

1.Wait a few seconds. Some operations take longer to perform than others. For example, a speadsheet program takes longer to recalcu- late an entire spreadsheet than to record one figure. Also, BASIC programs that perform many calculations can take several minutes, or even hours. Be aware of the task the computer is performing and judge the time accordingly.

2.If the computer remains locked up, follow the steps in Chapter 2 under ‘Resetting the Computer.”

Floppy Disk Problems

If you have trouble with a diskette, check the following questions:

1.Is the diskette damaged? Copy the diskette and then repeat the oper- ation that caused the problem using the copy. (If you have trouble copying the entire diskette, try to copy single files.) If the operation works using the copy, the original diskette is probably damaged. Make another copy to use as a backup.

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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