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Epson 386/33 PLUS manual 152

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Power-on diagnostics error messages (continued)

Keyboard is locked .,,

Write down message, contact dealer

	ROM BIOS checksum	Write down message, contact dealer

C-4 Troubleshooting

Contents

Page Page Important Safety Instructions Page Contents Page Page Page Introduction Where to Get Help Using Your Computer Copying the Reference and Utility Files Special Keys on the Keyboard Page Stopping a Command or Program Resetting the Computer Page Using a Power-onPassword Using Disks and Disk Drives Page Types of Diskette Drives Page Page Caring for Diskettes and Diskette Drives Page Write-protectingDiskettes Page Using a Single Diskette Drive System Inserting and Removing Diskettes Page Formatting Diskettes Making Backup Copies Using a Hard Disk Drive Page Page Enhancing System Operations Using AUTOEXEC.BAT and Other Batch Files Changing the Processor Speed Page Entering Keyboard Commands Using the ESPEED Program Page Using Your Computer as a Network Server Using a Password in Network Server Mode Using Special VGA Features Page Accessing Internal Components Removing the Cover Page Page Removing the Subassembly Page Page Page Replacing the Subassembly Page Page Page Page Page Page Page Replacing the Cover Page Installing and Removing Options Page Main System Board Changing the Jumper Settings Page Page Replacing the Battery Page Page Page Installing an Option Card Page Page Page Removing an Option Card Using the Alternate VGA Interface Page Adding Memory Modules Installing Memory Modules Page Page Removing Memory Modules Installing a Math Coprocessor Page Page Removing a Math Coprocessor Post-installationSetup for Memory Curds Using the CORFIX Program Post-installationSetup Installing and Removing Drives Choosing the Correct Drive Buy How to Use This Chapter Setting the Hard Disk Drive Jumpers Changing the Jumper Settings Page Installing a Hard Disk in the Vertical Position Removing the Mounting Frames from the Drive Page Removing and Attaching the Mounting Plate Installing the Drive Page Page Page Page Page Removing a Hard Disk From the Vertical Position Page Installing or Removing a Drive in the Horizontal Position Page Page Page Page Page Page Removing a Drive From the Horizontal Position Page Page Specifications CPU and Memory Controllers Interfaces Power Supply Mass Storage Keyboard Environmental Requirements System Memory Map Page Performing System Diagnostics Starting the Diagnostics Program The Main Menu Screen Page Setting the Run Time Parameters Page Error Logging Page Selecting Diagnostic Tests Page Running the Tests Page Memory Diagnostics Hard Disk Diagnostics Hard Disk Parameters Disk drive identifier Page Page Hard Disk Format Media Analysis Performance Test Seek Test Read/Verify Test Check Test Cylinder Force Bad Tracks Hard Disk Error Messages Floppy Disk Diagnostics Performing the Tests Floppy Disk Error Messages Miscellaneous Diagnostics Communication Adapter Test Exiting System Diagnostics Page Troubleshooting Identifying Your System Error Messages Page Page The Computer Won’t Start The Computer Does Not Respond Page Password Problems Page Keyboard Problems Monitor Problems Page Diskette Problems Page Diskette Drive Problems Hard Disk Problems Page Preparing the Drive Software Problems Page Printer Problems Option Card Problems Mouse Problems Memory Module Problems Battery Problems Math Coprocessor Problems Glossary Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Page Index

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