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Epson LT - 286e Keyboard Diagnostics, BAD CRC error, BAD DMA error, TIMEOUT error, BAD SEEK error, Controller Test, BAD address mark, Record not found, Media change error

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CHANGE LINE Not Available

DIAG displays this message if you attempt to run the Change Line Test on a drive that does not support a change line, such as a 360KB or 720KB drive.

The controller displays one of the following messages when an error occurs during a diagnostics procedure:

BAD address markBAD CRC errorBAD DMA errorBAD SEEK errorDiskette WRITE PROTECTEDMedia change errorRecord not foundTIMEOUT error

These errors could occur because of a faulty drive, controller, or cable, or if you attempt to run a test on a write-protected or unformatted diskette.

Keyboard Diagnostics

The tests listed in the Keyboard submenu provide a complete diagnostics check of the keyboard.

Controller TestScan/ASCII Code TestKeyboard clock line TestKeyboard data line test

34 System Diagnostics

Contents

Page IMPORTANT NOTICE DISCLAIMER OF WARRANTY COPYRIGHT NOTICE TRADEMARKS Contents The DIAG Main Menu Screen Selecting Continuous Passbound Page Page Introduction Starting the Diagnostics Program Creating a Database Page The DIAG Main Menu Screen Key Selecting Diagnostics Tests Test System Board Floppy Setting the Run Time Parameters Page Timebound Testing Continuous Testing Passbound Testing Error Logging Log errors to serial port (COM1) error 10 System Diagnostics Floppy disk A not present Floppy disk B not present Hard disk C not present Printer port not present Serial port not present Executing Diagnostics Tests in Batch Mode Running the Tests System Board Diagnostics Basic Functionality Test CPU Protected Mode Test Processor Speed Test Coprocessor Test the math coprocessor is not DMA Controller Test Interrupt Controller Test Timer Test RTC Test CMOS Validity Test Memory Diagnostics BIOS ROM Test Parity Test Pattern Test Testing from absolute base xxxxxxxxh Performing Pattern test in memory Walking 1’s Test Walking 0’s Test Address Test Refresh Test Hard Disk Diagnostics complete Hard Disk Parameters Disk drive type Interleave factor Bad track list Mark Bad Tracks (Y/N) Add an entry Revise an entry Delete an entry Clear Bad Track list Hard Disk Format Auto Interleave Media Analysis Performance Test Seek Test Read/Verify Test Check Test Cylinder Force Bad Tracks Hard Disk Error Messages INSUFFICIENT MEMORY FOR DATA TRANSFER Minimum memory required is - 128KB Floppy Disk Diagnostics Diskette Format Drive Speed Test Random R/W Test Sequential R/W Test Disk Change Line Test Floppy Disk Error Messages Keyboard Diagnostics Controller Test Scan/ASCII Code Test Keyboard Clock Line Test Keyboard Data Line Test Video Diagnostics Adapter Test Attribute Test 80x25 Display Test 40x25 Display Test 320x200 Graphics Test 640x200 Graphics Test Page Selection Test Color Test Miscellaneous Diagnostics Printer Adapter Test Communication Adapter Test Page Keyboard Scan/ASCII Codes 42 System Diagnostics Page 44 System Diagnostics Page 46 System Diagnostics Page 48 System Diagnostics Page 50 System Diagnostics Page Code Page 54 System Diagnostics System Diagnostics