Epson Equity LT-286e Parts User Manual
Contents
1. 35 Keyboard Data Line Test 35 Video Diagnostics 36 Adapter Tests ia i aceata oa ree ata e ata 36 Attribute TAS 36 80125 Display Test vss ce nuc ces atatea ee wee ies s 36 40x25 Display Tester es cR ondi hades de 37 320x200 Graphics Test ue e ponte ac xs 37 640x200 Graphics Test us exo e eene e ke 37 Page Selection Test sa sec osna arene Ca mi 37 Color POSE 23 6 ss abst C trono fut Lau coU nee A at Auf 37 640x350 Graphics Test ccrte te ree ec cara 38 Video Error Message sats di ei ada Pa ta Eee tas 38 Miscellaneous Diagnostics 38 Printer Adapter Test pesh e aceia es 38 Communication Adapter Test 39 Keyboard Scan ASCll Codes aerae rem t ee 41 Introduction This booklet describes how to use the diagnostics program called DIAG to test the condition of your computer s main unit and peripheral devices The DIAG program provides tests to check the following hardware U System board LI Memory CJ Hard disk drive A Diskette drive U Keyboard Video adapter board and monitor LI Printer and communications ports After you start the diagnostics program you can create a database that records the location of faulty memory chips if any exist This database displays a graphic representing your computer s memory board and identifies the faulty chips Once you select a test you2. No codes gnored System Diagnostics 43 Keystroke Scan Code ASCII Code space bar Caps Lock Ins Del Shift SysReq Shift Shift NumLock Shift ScrollLock Shift Shift Home 7 Shift T 8 No codes Ignored 44 Systen Diagnostics Keystroke Scan Code Shift PgUp 9 Shift Shift F1 Shift F2 Shift F3 Shift F4 Shift F5 Shift F6 Shift F7 Shift F8 Shift F9 Shift F10 Shift Shift e 4 Shift blank key Shift 6 Shift Shift Esc Shift 1 1 Shift 2 Shift 4 Shift 3 Shift 5 96 No codes Ignored ASCII Code System Diagnostics 45 Keystroke ASCII Code Shift 6 1 Shift 7 amp Shift 8 Shift 9 0 Shift 0 Shift End 1 Shift 4 2 Shift PgDn 3 Shift bksp Shift Tab Shift Q Shift W Shift E Shift f Shift T Shift Y Shift U Shift I Shift O Shift P Shift Shift Shift Enter No codes Ignored 46 System Diagnostics Keystroke Shift Ctrl Shift A Shift S Shift D Shift F Shift G Shift H Shift J Shift K Shift L Shift Shift Shift left Shift Z Shift X Shift C Shift V Shift B Shift N Shift M Shift lt Shift gt Shift 2 Shift Shift right No codes Ignored Scan Code 1E 1F 20 21 22 23 24 25 26 27 28 2C 2D 2E 2F 30 32 33 34 35 ASCII Code xx 41 53 44 46 47 48 4
3. maximum 8 characters For example type LT 286e and press Enter DIAG stores this information in a file called DIAGS CNF If a database with this vendor name and model number does not exist you see this message Database does not exist press any key except Esc to continue To create the database press any key other than ESC Now you respond to the screen prompts to update the configuration You can accept the default values that DIAG presents by pressing Enter When you see the diagram of the motherboard press ESC to continue the diagnostics If a database with the specified vendor name and model number exists you see this message Your database already exists want to update Y N N System Diagnostics 3 To update the existing database press Y and Enter Now you respond to the screen prompts to update the configuration If you do not want to update the database press N and Enter You see the DIAG main menu The DIAG Main Menu Screen The DIAG main menu screen looks like this Memory Hard Disk Keyboard Video Miscl CPU Protected Mode Test Processor speed test CoProcessor test DMA Controller test Interrupt Controller test Timer test Real Time Clock test CMOS Validity test Testing Mode T imebound JA AC ontinuous P assbound max 65535 2 P Wait On Error Y N Y Er i Y N No Of Passes 00001 Tests Basic Operation of CPU in Real Mode The program s title copyright i
4. at any time to end this test Keyboard Clock Line Test This test checks the keyboard clock line Keyboard Data Line Test This test checks the keyboard data line System Diagnostics 35 Video Diagnostics The tests listed in the Video submenu provide a complete diagnostics check of the video adapter Use these tests to check the operation of the LCD or monitor connected to your computer Run All Tests Adapter Test Attribute Test 80x25 Display Test 40x25 Display Test 320x200 Graphics Test 640x200 Graphics Test Page Selection Test Color Test 640x350 Graphics Test Adapter Test This test checks the memory assigned to the display adapter Attribute Test This test checks the display attributes of the video adapter 80x25 Display Test This test checks the 80x25 display feature of the display adapter 36 System Diagnostics 40x25 Display Test This test checks the 40x25 display feature of the display adapter This test is available for a color display adapter only 320x200 Graphics Test This test checks the 320x200 graphics display feature of the display adapter This test is available for a color display adapter only 640x200 Graphics Test This test checks the high resolution 600x200 graphics display feature of the display adapter This test is available for a color display adapter only Page Selection Test This test checks the paging function of the display adapter This
5. contact your dealer 30 System Diagnostics Floppy Disk Diagnostics The tests listed in the Floppy Disk submenu provide a complete diagnostics check of the system s diskette drive Diskette Format I Drive Speed Test Random R W Test Sequential R W Test Disk Change Line Test Floppy disk diagnostics tests may be destructive or non destructive Destructive diagnostics destroy data on the diskette These tests include Diskette Format Random R W Test Sequential R W Test Non destructive diagnostics do not destroy data on the diskette These tests include Drive Speed Test Disk Change Line Test DIAG requests the following parameter before performing a floppy disk test Floppy Disk Drive A B J System Diagnostics 31 Diskette Format This test checks the format of the floppy disk controller and drive It does not format the diskette for any particular operating system This test destroys all data on the diskette Drive Speed Test This test verifies how fast the floppy drive rotates a diskette Your internal 1 44MB 3 1 2 inch diskette drive should rotate the diskette at 300 rpm allowing a tolerance of one percent An external 1 2MB 5 1 4 inch diskette drive should rotate a 1 2MB diskette at 360 rpm and a 360KB diskette at 300 rpm Again allow one percent tolerance To perform this test insert a diskette into the drive you plan to test Use a diskette you have formatted wi
6. test is available for a color display adapter only Color Test This test checks the background and border color mapping of the display adapter This test is available for a color display adapter only System Diagnostics 37 640x350 Graphics Test This test checks the 640x350 graphics display feature of the EGA display adapter This test is available for a color display adapter only Video Error Message DIAG displays the following error message during the Adapter Test DISPLAY MEMORY R W ERROR The Adapter Test detected a read write error in the display memory This indicates a problem with the display controller Contact your dealer Miscellaneous Diagnostics The tests listed is the Miscellaneous submenu provide a complete diagnostics check of the parallel and serial ports Printer Adapter Test Commu Adapter Test Printer Adapter Test This test checks the parallel port and the printer by sending a pattern to the printer If the printer does not print the pattern the test has failed 38 System Diagnostics You may see one of the following error messages during this test Error Printer Out of Paper Error Printer Not Selected Error Printer Interface I O Error Error Time Out On Printer Check that the printer is on line paper is loaded and all connections are secure Communication Adapter Test This test checks the serial port Before running this test you must connect a special RS 232
7. vendi ld Ain Se IR 19 Refresh Testa ide io IE aes Ad et ee 20 Hard Disk Diagnostics iot a Sed ei e EE 20 Hard Disk Parameters 21 Disk drive identifier 21 DISK drive ND sce rente nei due bte See 22 Interleave factor 22 Bad track list 23 Start and end cylinder numbers 23 Start and end head numbers 24 Hard Disk Format 24 Auto Interleave 25 Media Analysis 26 Performance Test 27 Seek Po Cc 28 Head Venty TeSt pese otet aia eta c OC ER ka 28 Check Test Cylinder ode b ebrei ae ee trad 29 Force Bad Tracks 29 Hard Disk Error Messages sista di 30 Floppy Disk Diagnostios iii ek eR eR IRR EE ae 31 Diskette Format 32 Drive Speed TES e teii a cR p A aaa Ma ta a ca aa Wace 32 Random R W Test 32 Sequential R W Test anis gege donk dei SEN atata pa 33 Disk Change Line Test eet de we chad 33 Floppy Disk Error Messages 33 Keyboard Diagnostics 34 Controller Test sno aaa slab vaa rA MAR e eae iR 35 Scan ASCII Code Test 35 Keyboard Clock Line Test
8. A 4B 4C 3A 22 wee 5A 58 43 56 42 4E 4D 3C 3E 3F xx System Diagnostics 47 Keystroke Scan Code ASCII Code Shift Alt Shift PrtSc Shift Shift space bar Shift CapsLock Shift Ins 0 Shift Del Ctrl SysReq Ctrl Ctrl NumLock Ctrl Ctrl Home Ctrl T Ctrl PgUp Ctrl Ctrl F1 Ctrl F2 Ctrl F3 Ctrl F4 Ctrl F5 Ctrl F6 Ctrl F7 Ctrl F8 No codes Ignored 48 System Diagnostics Keystroke ASCII Code Ctrl F9 66 Ctrl F10 Ctrl Ctrl Ctrl blank key Ctrl Ctrl Ctrl Esc Ctrl 1 Ctrl 2 NUL Ctrl 3 Ctrl 4 Ctrl 5 Ctrl 6 RS Ctrl 7 Ctrl 8 Ctrl 9 Ctrl 0 Ctrl End Ctrl Ctrl PgDn Ctrl bksp No codes Ignored System Diagnostics 49 Keystroke Scan Code ASCII Code Ctrl Tab Ctrl Q DC1 Ctrl W ETB Ctrl E ENQ Ctrl R DC2 Ctrl T DC4 Ctrl Y EM Ctrl U NAK Ctrl HT Ctrl 0 SI Ctrl P DLE Ctrl ESC Ctrl GS Ctrl Enter LF Ctrl Ctrl A SOH Ctrl S DC3 Ctrl D EOT Ctrl F ACK Ctrl G BEL Ctrl H bksp Ctrl J LF Ctrl K VT Ctrl L FF No codes Ignored 50 System Diagnostics Keystroke Scan Code ASCII Code Ctrl Ctrl Ctrl Shift left Ctrl Z SUB Ctrl X CAN Ctrl C ETX Ctrl V SYN Ctrl B STX Ctrl N SO Ctrl M CR Ctrl Ctrl Ctrl Ctrl Shift right Ctrl Alt Ctrl PrtSc Ctr FS Ctrl space bar Ctr
9. C connector to the serial port The connector requires the following settings RD and TD shorted 2 2 DSR and DTR shorted 4 6 CTS and RTS shorted 7 8 You can purchase an AT type loopback connector from most electronic supply stores This connector allows the test to send out and receive the same data for the purpose of the test This test checks the serial port for the following parameters 9600 baud rate Odd parity 2 stop bits 8 bit data length This test first performs a reset function to check for all possible errors Then it performs a send function followed by a receive System Diagnostics 39 You may see one of the following error messages during this test Error Break Detected Error Framing error Error Overrun error Error Parity error Error Time out These error messages indicate a problem with the controller or with the test cable Make sure the test connector is secure If the error persists contact your dealer 40 System Diagnostics Keyboard Scan ASCII Codes Keystroke Scan Code Sys Req Num Lock Scroll Lock Fi F2 F3 F4 F5 F6 F7 F8 F9 F10 blank key No codes Ignored 3B 3c 3D 3E 3F 40 41 42 48 44 OD 4B ASCII Code 00 00 00 00 00 00 00 00 00 00 3D 00 System Diagnostics 41 ASCII Code 00 No codes Ignored 42 System Diagnostics Keystroke Scan Code ASCII Code apostrophe Shift left Z X
10. EPSON EQUITY LT 286e System Diagnostics User s Guide IMPORTANT NOTICE DISCLAIMER OF WARRANTY Epson America makes no representations or warranties either express or implied by or with respect to anything in this manual and shall not be liable for any implied warranties of merchantability and fitness for a particular purpose or for any indirect special or consequential damages Some states do not allow the exclusion of incidental or consequential damages so this exclusion may not apply to you COPYRIGHT NOTICE All rights reserved No part of this publication may be reproduced stored in a retrieval system or transmitted in any form or by any means electronic mechanical photocopying recording or otherwise without the prior written permission of Epson America Inc No patent liability is assumed with respect to the use of information contained herein While every precaution has been taken in the preparation of this publication Epson America assumes no responsibility for errors or omissions Nor is any liability assumed for damages resulting from the use of the information contained herein Further this publication and features described herein are subject to change without notice TRADEMARKS Epson is a registered trademark of Seiko Epson Corporation Equity and LT are trademarks of Epson America Inc MS DOS is a registered trademark of Microsoft Corporation Copyright 1989 by Epson America Inc Torrance C
11. Format Auto Interleave Media Analysis Perform Test Seek Test Read Verify Test Check Test Cyl Bad Tracks Hard disk diagnostics tests may be destructive or non destructive Destructive diagnostics destroy data on the hard disk Non destructive diagnostics do not destroy data on the hard disk 20 System Diagnostics Destructive diagnostics tests include Hard Disk Format Auto Interleave Media Analysis Force Bad Tracks The non destructive diagnostics tests include Performance Test Seek Test Read Verify Test Check Test Cylinder Hard Disk Parameters DIAG may request any or all of the following parameters before performing a following hard disk test Disk drive identifier Disk drive type Interleave factor Bad track list Start cylinder number End cylinder number Start head number End head number Disk drive identifier DIAG displays the following prompt for the disk drive identifier Disk Drive C D Di ve If only one hard disk is connected to the computer DIAG assumes it is drive C and does not request a response to this prompt System Diagnostics 21 Disk drive type DIAG displays the following prompt for the disk drive type Disk Drive type mo A Select drive type 2 for a 20MB drive or drive type 17 for a 40MB drive DIAG determines the type of hard disk drive based on the settings in CMOS RAM A pop up window on the screen lists 47 possible drive types This allows for the
12. Then back up all data on the hard disk before you start the DIAG program The Hard Disk Format program lets you format the entire hard disk or any portion of it 24 System Diagnostics When you select Hard Disk Format DIAG requests the following hard disk parameters Disk drive identifier Disk drive type Interleave factor Bad track list optional Start cylinder number End cylinder number Start head number End head number If you do not specify the bad track list DIAG performs an analysis of the surface of the hard disk to determine the bad tracks DIAG displays the following messages after you specify the hard disk parameters WARNING All data on Hard disk you have specified may be LOST DO YOU STILL WANT TO CONTINUE Y N Press Y and Enter to start formatting the hard disk Press N and Enter to stop the operation Auto Interleave This test lets DIAG determine the interleave factor for your hard disk System Diagnostics 25 When you select Auto Interleave DIAG requests the disk drive identifier and disk drive type After you specify the parameters you see these messages WARNING All data on Hard disk you have specified may be LOST Do you still want to continue Y N Press Y and Enter to start the Auto Interleave function Press N and Enter to stop the operation Media Analysis This test identifies the bad tracks on the hard disk DIAG performs a comprehensive analysis of the surfa
13. alifornia Y 19499100200 Contents rit FOU EE Starting the Diagnostics Program 2 Creating a Database nd sis nace tes Pa bna e aie taja 2 The DIAG Main Menu Screen 4 Selecting Diagnostics Tests 6 Setting the Run Time Parameters 7 Timebound Testing tja coca tja ke Ep gta oe saree ares n 9 Continuous Testi yc sette du ia tits d ea na aaa 9 Passbound Testing 9 Error LOGGING x ssc orgy ator Shanes one sciet ey exe 10 Executing Diagnostics Tests in Batch Mode 12 Running the Tests e sa arata r er ED SR ea B dp re Reate 12 System Board Diagnostics 2 ek c e xe x RR kaki 13 Basic Functionality Test ss io ra ke ere ae ie RAE 13 CPU Protected Mode Test 2 use eer eem 13 Processor Speed Testori atei Aaa rete ta 14 GOprocessor TeSE cedat Ses eeu bentes be RENE EXTR 14 DMA Controller Test 14 Interrupt Controller Test ss zni a krki a o i ee 15 Timer TES a a anale ide 15 RIC Test ves enw ei enn me e A dante aie d 16 CMOS Validity Test zoni dei vda RR RR 16 Memory Diagnostics des Stns ae bte rone mr Eee 17 BIOS ROM Test eee 18 Parity Test Scots tots abaco dele diets 18 Pattern Test ecc eres eo ee ata NE NR IDEE 18 Walking 1 s Test 3k hr Rete Hees 19 Walking OS Test ca Sr mm sa e Set ene eee ea 19 Address Test 3
14. ce of the hard disk to find the bad tracks DIAG uses three different bit patterns for this test It formats the hard disk marks the bad tracks and displays the bad track list When you select Media Analysis DIAG requests the following hard disk parameters Disk drive identifier Disk drive type Interleave factor Start cylinder number End cylinder number Start head number End head number 26 System Diagnostics DIAG displays the following messages after you specify the hard disk parameters WARNING All data on Hard disk you have specified may be LOST Do you still want to continue Y N Press Y and Enter to start analyzing the hard disk Press N and Enter to stop the operation Performance Test This test checks the performance of your hard disk It determines the data transfer rate and track to track seek time based on the transfer sire seek count and the amount of data transferred The interleave factor is the most critical factor in determining disk performance Changing the interleave factor can drastically change disk performance DIAG measures the data transfer rate in kilobytes per second To measure the data transfer rate DIAG reads 64KB of data 15 times and counts the number of timer ticks using this formula Transfer rate 64KB x 15 x 18 2 timer ticks DIAG measures track to track seek time in milliseconds using this formula Seek time timer ticks x 1000 18 2 x 200 The number
15. es the error messages to the device connected to your serial port assigned COMI If you select Cancel error logging DIAG changes the error logging response from Y to N When you specify the device for error logging one of the error messages may appear Floppy disk A not present Floppy disk B not present Hard disk C not present Printer port not present Serial port not present Error inprinter status Error inserial port status Error in floppy drive A Record the error message and select a different device for error logging System Diagnostics 11 Executing Diagnostics Tests in Batch Mode To execute the selected group of diagnostics tests in batch mode simply press F6 DIAG highlights each test name as it runs the test If you selected Passbound testing DIAG displays the pass number on the right side of the screen above the Run Time Parameters window For example Pass 00001 When DIAG is executing a group of tests you can stop the testing and return to the System Board submenu of tests by pressing Ctrl Break DIAG completes the current test before it stops If you specified Wait on error in the Run Time Parameters DIAG pauses each time an error occurs When you press Enter DIAG continues the diagnostics testing Running the Tests When DIAG completes a test you see this prompt Press ENTER to return to MAIN MENU Press Enter to return to the main menu If an error occurs durin
16. g a test note the error message and contact your Epson dealer Your dealer may be able to solve the problem if not he or she can refer you to an authorized Epson Customer Care Center If necessary call the Epson Consumer Information number 1 800 922 891 1 for the location of your nearest authorized Epson Customer Care Center 12 System D iagnostics System Board Diagnostics The tests listed in the System Board submenu provide a complete diagnostics check of the system board Basic Functionality test CPU Protected Mode test Processor speed test CoProcessor test DMA Controller test Interrupt Controller test Timer test Real Time Clock test CMOS Validity test Basic Functionality Test This test verifies the operation of each major component on the system board It checks the instructions registers and flags of the CPU When the test completes successfully you see this message Basic functionality test of CPU passed OK CPU Protected M ode Test This test switches to protected mode and checks the protected mode instructions such as LSL VER and LAR When the test completes successfully you see this message Protected mode test of CPU passed OK System Diagnostics 13 Processor Speed Test This test identifies the CPU clock speed and displays a message similar to this Measure CPU speed in Megahertz 12 00 Coprocessor Test This test checks the math coprocessor Ifthe math coprocessor
17. his may indicate a problem exists with the floppy drive or the controller System Diagnostics 33 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 mark BAD CRC error BAD DMA error BAD SEEK error Diskette WRITE PROTECTED Media change error Record not found TIMEOUT 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 Test Scan ASCII Code Test Keyboard clock line Test Keyboard data line test 34 System Diagnostics Controller Test This test checks the keyboard controller Scan ASCII Code Test This test checks the scan codes assigned to the keys on the keyboard When you select this test DIAG displays the layout of your keyboard on the screen When you press a key DIAG displays the scan code and the ASCII code of the key See the Keyboard Scan ASCII Codes section later in this booklet for a complete list of the scan codes and ASCII codes for your keyboard Press Ctrl Break
18. identifies any memory faults During the test you see these messages Testing from absolute base xxxxxxxxh Performing Pattern test in memory When the test completes successfully you see this message Pattern test in memory passed OK 18 System Diagnostics Walking 1 s Test This test checks the voltage in the data lines for any shorts and checks for any data bits that are always 1 During the test you see this message Testing from absolute base xxxxxxxxh When the test completes successfully you see this message Walking 1s test in memory passed OK Walking 0 s Test This test checks the voltage in the data lines for any shorts and checks for any data bits that are always 0 During the test you see these messages Testing from absolute base xxxxxxxxh When the test completes successfully you see this message Walking OS test in memory passed OK Address Test This test checks for any shorts in the address line When the test completes successfully you see this message Exclusivity test of address lines passed System Diagnostics 19 Refresh Test This test checks the refresh interval If an error occurs DIAG displays this message Failure in Refresh test When the test completes successfully you see this message Refresh test passed OK Hard Disk Diagnostics The tests listed in the Hard Disk submenu provide a complete diagnostics check of the system s hard disk drive Hard Disk
19. is not installed you see this message Numeric Data processor not present DMA Controller Test This test performs read write tests on the memory address registers and page registers of DMA controller 1 and 2 During the test you see this message Testing Programmable DMA Controller When the test completes successfully you see this message Programmable DMA Controller test passed OK 14 System Diagnostics Interrupt Controller Test This test performs read write tests on the interrupt mask registers and checks for invalid interrupts During the test you see this message Testing Programmable Interrupt Controller When the test completes successfully you see this message Programmable Interrupt Controller test passed OK Timer Test This test verifies the accuracy of the timer count by comparing it to the periodic interrupt of the system s real time clock RTC During the test you see this message Testing Programmable Interval Timer When the test completes successfully you see this message Programmable Interval Timer test passed OK System Diagnostics 15 RTC Test This test verifies the accuracy of the real time clock by comparing it to the timer O interrupt During the test you see this message Testing Real Time Clock When the test completes successfully you see this message Real Time Clock test passed CMOS Validity Test This test checks the system s CMOS RAM Du
20. l CapsLock Ctrl Ins Ctrl Del Alt SysReq Alt No codes Ignored System Diagnostics 51 Keystroke scan Code ASCII Code kk Alt NumLock Alt Scrolllock Alt Alt Home Alt T Alt PgUp Alt Alt F1 Alt F2 Alt F3 Alt F4 Alt F5 Alt F6 Alt F7 Alt F8 Alt F9 Alt F10 AA Alte Alt blank key Alt Alt Alt Esc Alt 1 No codes Ignored 52 System Diagnostics Keystroke Scan Code ASCII Code Alt 2 Alt 3 Alt 4 Alt 5 Alt 6 Alt 7 Alt 8 Alt 9 Alt 0 Alt End Alt 4 Alt PgDn Alt bksp No codes Ignored System Diagnostics 53 Keystroke Scan Code ASCII Code Alt Alt Alt Enter i Alt Ctrl Alt A 00 Alt S 00 Alt D 00 Alt F 00 Alt G 00 Alt H 00 Alt J 00 Alt K 00 Alt L 00 Alt ai Alt xx Alt Shift left Alt Z 2C K At X 2D Ke Alt C 2E T Alt V 2F E Alt B 30 p Alt N 31 RE Alt M 32 s Alt E No codes Ignored 54 System Diagnostics Keystroke Scan Code ASCII Code Alt Alt Alt Shift right Alt Alt Alt Alt space bar Alt CapsLock Alt Ins Alt Del No codes Ignored System Diagnostics 55
21. need to specify how long to run it You use the Run Time Parameters window to specify a certain length of time to run the test run it continuously until you interrupt it or specify a number of times to run the test System Diagnostics 1 Starting the Diagnostics Program To start the diagnostics program follow these steps l 2 Insert the Diagnostics diskette in drive A Turn on or reset the computer At the MS DOS prompt type the following and press Enter DIAG The Diagnostics program displays a title screen Press any key to continue Creating a Database You can create a database to record the location of faulty memory chips that are causing memory errors To graphically represent the memory board on the screen you need to identify your system s memory configuration In the lower portion of the screen you see this message Press lt Esc gt to bypass database creation Press ESC if you do not want to create the database The DIAG main menu appears so you can select the tests you want to run 2 System Diagnostics If you want to create a database follow these steps Li Type the name from 1 to 50 characters that identifies your company or the computer and press Enter in response to this prompt vendor s name maximum 50 characters For example type EPSON and press Enter Type the computer s model number from 1 to 8 characters and press Enter in response to this prompt model number
22. nformation and the date and time appear at the top of the screen The DIAG options line shows these categories of tests System Board Memory Hard Disk Floppy Keyboard Video and Miscellaneous After you select a category DIAG provides a submenu of the available diagnostics tests When the main menu first displays you see the submenu of diagnostics tests for the System Board category 4 System Diagnostics The Run Time Parameters window lets you specify how long you want the test to run whether you want DIAG to notify you of each error as it occurs and whether to create a log of all errors that occur during testing The Help window shows the keys you use to make menu selections A short message describing each test you highlight displays at the bottom of the screen You use these keys to make menu selections and run diagnostics tests Key Function gt Move to the next window or device Move to the previous window or device l Move to the next test i Move to the previous test Enter Start the test F2 Set the Run Time Parameters F3 Select or deselect a test F4 Select all tests F5 Deselect all tests F6 Run all selected tests system Diagnostics 5 Selecting Diagnostics Tests This section describes the various ways you can select the tests you want to run To start a single test move the cursor to highlight the test category on the main menu Then move the cursor to the submenu and highlight
23. of seeks is 200 A higher data transfer rate and a lower seek time indicate better disk performance System Diagnostics 27 When you select the Performance Test DIAG requests the disk drive identifier and disk drive type Seek Test This test checks the seek capability of the hard disk on the specified range of cylinders and heads DIAG performs a series of sequential seeks followed by random seeks It reports any errors found When you select Seek Test DIAG requests the following hard disk parameters Disk drive identifier Disk drive type Start cylinder number End cylinder number Start head number End head number Read V erify Test This test checks the read and verify capability of the hard disk on the specified range of cylinders and heads DIAG performs both sequential and random read and verify operations It reports any errors found When you select Seek Test DIAG requests the following hard disk parameters Disk drive identifier Disk drive type Start cylinder number End cylinder number Start head number End head number 28 System D iagnostics Check Test Cylinder This test checks the test cylinder which is the last cylinder on the hard disk Perform this test if you receive a hard disk error when you boot the system When you select Check Test Cylinder DIAG requests the disk drive identifier and disk drive type Force Bad Tracks Use this test to mark bad tracks on the hard disk without forma
24. possibility of additional hard disk drives in the future If you select the User Defined hard disk drive you must provide the following information Number of cylinders Number of heads Number of sectors per track Write precom Write precom cylinder number Landing zone Interleave factor DIAG displays the following prompt for the interleave factor Interleave 1 16 d The interleave factor affects the performance of your hard disk The default value is 3 When you execute the Auto Interleave test DIAG determines the best interleave value for your hard disk and formats the hard disk for this interleave factor If you enter an interleave value in response to the Interleave prompt you override the value set by DIAG Only do this if the documentation with your hard disk recommends a different value 22 System Diagnostics Bad track list DIAG displays the following prompt for the bad track list Mark Bad Tracks Y N Entering the bad track list is optional If you respond Y to the above prompt you see the following menu in a pop up window Add an entry Revise an entry Delete an entry Clear Bad Track list Save and Exit You do not need to enter a bad track list for the hard disk that comes with the Equity LT 286e When you execute the Media Analysis test DIAG automatically marks the bad tracks when it formats the hard disk Start and end cylinder numbers DIAG displays the following prompts for the s
25. reate the log This is the default setting If you decide not to wait on errors you should select error logging so you can review the errors that occur during the tests Next DIAG requests information it needs to perform the type of testing you selected 8 System Diagnostics Timebound Testing If you selected Timebound testing you see this prompt Period 001 hr 00 min Specify the amount of time you want to run the selected test s Type the number of hours from 000 to 999 and press Enter Then type the number of minutes from 00 to 59 and press Enter You can use the backspace key to edit your input Continuous Testing If you selected Continuous testing DIAG needs no additional information After you specify whether to create the error log DIAG returns to the main menu You see this message in the Run Time Parameters window Test Mode Continuous Passbound Testing If you selected Passbound testing you see this prompt No of Passes 00001 Specify the number of times from 1 to 65535 you want DIAG to run the test s Or press Enter without entering a number to select the default of one pass You can use the backspace key to edit your input Running a test multiple times provides reliability testing of essential functions only In most cases running a test once is sufficient System Diagnostics 9 If you specify a number larger than 65535 DIAG subtracts 65535 from your entry to determine how man
26. ring the test you see this message Testing CMOS validity When the test completes successfully you see this message CMOS validity test passed OK 16 System Diagnostics Memory Diagnostics The tests listed in the Memory submenu provide a complete diagnostics check of the system s built inmemory BIOS ROM Test Parity test Pattern test Walking l s test Walking O s test Address test Refresh test If you have relocated any memory addresses you must change the addresses to their original locations for the memory tests to work properly If an error occurs during a memory test DIAG displays this message PRESS ENTER TO VIEW FAULTY MEMORY CHIP To view the faulty memory chip you must have created a database If not you see this message database not created If you have created a database DIAG displays the diagram of the motherboard and highlights the faulty memory chip System Diagnostics 17 BIOS ROM Test This test checks the data path of the BIOS ROM When the test completes successfully you see this message System ROM module test passed Parity Test This test checks for parity errors in memory During the test DIAG displays these messages Testing from absolute memory location XXXXXXXXh Checking for parity error When the parity test completes without an error you see this message Parity test passed OK Pattern Test This test performs a read write test of memory and
27. tarting and ending cylinder numbers Start cylinder number End cylinder number Enter the first and last cylinder numbers on which you want to perform the tests The default for the start cylinder number is 0 and the default for the end cylinder number is one less than the highest cylinder number of your hard disk For a 20MB hard disk drive the highest cylinder number is 614 For a 40MB hard disk drive the highest cylinder number is 976 System Diagnostics 23 Start and end head numbers DIAG displays the following prompts for the starting and ending head numbers Start Head number 2 End Head number 2 Enter the first and last head numbers on vyhich you vvant to perform the tests The default for the start head number is 0 and the default for the end head number is one less than the highest head number of your hard disk The highest head number for the Equity LT 286e is 3 After you specify the hard disk parameters required for the selected diagnostics test DIAG begins executing the test Hard Disk Format Use this test when installing a new hard disk in your computer It preformats your hard disk on the hardware level You must still format the hard disk for your operating system You may need to reformat a hard disk if you have a serious problem with the drive However before executing this program on a hard disk with data try every other recovery procedure described in your operating system manual
28. th the Diskette Format test Random R W Test This test checks the random seek capability of a floppy disk drive It performs a random read write operation on the diskette in the specified drive To perform this test insert a diskette into the drive you plan to test Use a diskette you have formatted with the Diskette Format test This test destroys all data on the diskette 32 System Diagnostics Sequential R W Test This test checks the sequential seek read and write capabilities of a floppy disk drive It performs a sequential read write operation on the diskette in the specified drive To perform this test insert a diskette into the drive you plan to test Use a diskette you have formatted with the Diskette Format test This test destroys all data on the diskette Disk Change Line Test This test checks the status of the disk change line This line should change when you insert or remove a diskette from a floppy disk drive To perform this test insert a diskette into the drive you plan to test Use a diskette you have formatted with the Diskette Format test Floppy Disk Error M essages DIAG displays two types of error messages while testing the floppy disk drive messages DIAG generates and those the controller generates DIAG may display the following error messages during the Disk Change Line test Warning Change line inoperational DIAG displays this message if the line is not working properly T
29. the Run Time Parameters window DIAG displays default values for each of the run time parameters You can press ESC at any time to exit the Run Time Parameters window and return to the submenu of diagnostics tests The first run time parameter defines how long or how many times to run the test You see this prompt Testing Mode T imebound C ontinuous P assbound max 65535 T C P P System Diagnostics 7 Type T and press Enter to run the selected tests in Timebound mode In Timebound mode DIAG runs the tests for the amount of time you specify Type C and press Enter to run the selected tests in Continuous mode In Continuous mode the tests run until you interrupt them Type P and press Enter to run the diagnostics tests in Passbound mode In Passbound mode DIAG executes the selected tests the number of times you specify This is the default setting The next prompt is Wait on error Y N Y Press Y and Enter if you want DIAG to pause when an error occurs during a test DIAG pauses and waits for you to press Enter before continuing This lets you view the error message and make notes about the error This is the default setting Press N and Enter if you want DIAG to continue when an error occurs The next prompt is Error logging Y N 2 N Press Y and Enter to record the errors that may occur during the test See the Error Logging subsection for details Press N and Enter if you do not want to c
30. the test you want to perform Press Enter to start the test To select several tests at one time move the cursor to each test you want to perform and press F3 If you decide you do not want to run a selected test highlight the test name and press F3 again You can press F4 to select all tests for all devices and press F5 to deselect all selected tests Once you select a test it remains selected until you deselect it If you run a test or a group of tests and start testing again DIAG performs the same tests unless you deselect them You must enter certain parameters for the hard disk drive and the diskette drive tests If you use F3 to select these tests DIAG prompts you for the information If you use F4 to select these tests DIAG prompts you for the information during the first pass of the test If you perform more than one pass of the test DIAG uses the same parameters for each pass 6 Systems Diagnostics You cannot include certain tests in a group The tests that must run separately include category Test System Board Timer test Real Time Clock test Hard Disk Hard Disk Format Auto Interleave Media Analysis Force Bad Tracks Floppy Disk Change Line Test Keyboard Scan ASCII Code Test Miscellaneous Printer Adapter Test Comm Adapter Test After you select the test s you want to run you must set the Run Time Parameters Setting the Run Time Parameters To specify the Run Time Parameters press F2 to move to
31. tting the disk When you select Force Bad Tracks DIAG requests the following hard disk parameters Disk drive identifier Disk drive type Starr cylinder number End cylinder number Start head number End head number DIAG displays the following messages after you specify the hard disk parameters WARNING All data on Hard disk you have specified may be LOST Do you still want to continue Y N System Diagnostics 29 Press Y and Enter to start the test Press N and Enter to stop the operation Hard Disk Error Messages DIAG displays two types of error messages while testing the hard disk messages DIAG generates and those the controller generates DIAG displays the following message if you attempt to run the Performance Test with less than 128KB of memory INSUFFICIENT MEMORY FOR DATA TRANSFER Minimum memory required is 128KB The controller displays one of the following messages when an error occurs during a diagnostics procedure Address mark not found Attachment failed to respond Bad ECC on disk read Bad sector flag detected Controller has failed Drive activity failed ECC corrected data error Requested sector not found Reset failed Seek operation failed Write fault on selected drive When you see one of these error messages check the drive controller cables and power connectors Remove and re install the hard disk cartridge If you still get an error
32. y times to run the test For example if you enter a value of 65540 DIAG runs the test s five times Error Logging 10 When you request error logging DIAG displays the following pop up window Log errors on disk Log errors to printer LPT1 Log errors to serial port COMI Cancel error logging Highlight the device you want to use to store or print the error messages Press Enter to select the device or press ESC to exit the pop up window and return to the Error logging prompt If you select Log errors on disk DIAG displays another pop up window Floppy disk A Floppy disk B Hard disk C Highlight the disk where you want to store the error messages Press Enter to select the specified disk drive DIAG creates a file called ERROR LOG in the current directory of the specified disk drive After running the tests you can open the ERROR LOG file to review the errors that occurred during the tests System Diagnostics After selecting error logging DIAG uses this device and or disk drive for error logging until you indicate you do not want error logging You can then specify a new device and or disk drive by selecting error logging in the Run Time Parameters window When you specify a new device and or disk drive DIAG erases the existing ERROR LOG file If you select the printer DIAG writes the error messages to the device connected to your parallel port assigned LPT1 If you select the serial port DIAG writ
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