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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.
Contents Introduction.. ......................................... 1 Starting the Diagnostics Program. .......................... 2 Creating a Database ..................................... 2 The DIAG Main Menu Screen ............................ 4 Selecting Diagnostics Tests .
Hard Disk Diagnostics ................................... 20 Hard Disk Parameters. ............................... 21 Disk drive identifier. ............................ 21 Disk drive type ................................. 22 Interleave factor .......
Video Diagnostics ....................................... 36 Adapter Test ...................................... 36 Attribute Test ..................................... 36 80x25 Display Test. ................................. 36 40x25 Display Test. ..
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 che.
Starting the Diagnostics Program To start the diagnostics program, follow these steps: 1. Insert the Diagnostics diskette in drive A. 2. Turn on or reset the computer. 3. At the MS-DOS@ prompt, type the following and press Enter: DIAG The Diagnostics program displays a title screen.
If you want to create a database, follow these steps: 1. 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.
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: ~~~~~~~~~~ Memoly :.
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.
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 the test you want to perform.
You cannot include certain tests in a group. The tests that must run separately include: category System Board Test 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.
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.
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.
If you specify a number larger than 65535, DIAG subtracts 65535 from your entry to determine how many times to run the test. For example, if you enter a value of 65540, DIAG runs the test(s) five times.
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.
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.
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 Co.
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. If the math coprocessor is not installed, you see this message: Numeric Data processor not present.
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.
RTC Test This test verifies the accuracy of the real time clock by comparing it to the timer 0 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.
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.
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.
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.
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.
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.
Disk drive type DIAG displays the following prompt for the disk drive type: Disk Drive type ? 2 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.
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 m.
Start and end head numbers DIAG displays the following prompts for the starting and ending head numbers: Start Head number ? End Head number ? Enter the first and last head numbers on which you want to perform the tests.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
Keyboard Scan/ASCII Codes Keystroke Sys Req Num Lock Scroll Lock Home T PgUP F1 F2 F3 F4 F5 F6 F7 F8 F9 F10 E t [blank key] ** No codes - Ignored Scan Code ASCII Code ** ** 29 60 ** *t tt ** 0C 2D 47 .
Keystroke Scan Code ASCII Code + 4D 00 + 4E 2B Esc 1 2 3 4 5 6 7 8 9 0 End 5- PgDn + Ww) Tab q W e r t 01 1B 02 31 03 32 04 33 05 34 06 35 07 36 08 37 09 38 0A 39 0B 30 4F 00 50 00 51 00 0E 08 0F 09 1.
Keystroke 0 P [ ] Enter Ctrl a S d f g h j k I ’ (apostrophe) Shift (left) Z X ** No codes - Ignored Scan Code ASCII Code 15 79 16 75 17 69 18 6F 19 70 1A 5B 1B 5D 1C 0D ** ** 1E 61 1F 73 20 64 21 6.
Keystroke Scan Code ASCII Code C V b n m , (comma) I Shift (right) Alt l [space bar] Caps Lock Ins Del Shift SysReq Shift ’ (-) Shift NumLock Shift ScrollLock Shift - (-) Shift Home (7) Shift ? (8).
Keystroke Scan Code ASCII Code Shift PgUp (9) 49 00 Shift - 4A 2D Shift F1 Shift F2 Shift F3 Shift F4 Shift F5 Shift F6 Shift F7 Shift F8 Shift F9 Shift F10 Shift = (+) Shift t (4) Shift [blank key] S.
Keystroke Shift 6 (^) Shift 7 (&) Shift 8 (*) Shift 9 (() Shift 0 ()) Shift End (1) Shift L (2) Shift PgDn (3) Shift t (bksp) Shift Tab Shift Q Shift W Shift E Shift f? Shift T Shift Y Shift U Shi.
r- r Keystroke Shift Ctrl Shift A Shift S Shift D Shift F Shift G Shift H Shift J Shift K Shift L Shift ; (:) Shift ’ (“) Scan Code 1E 1F 20 21 22 23 24 25 26 27 28 Shift (left) Shift Z Shift X Sh.
Keystroke Scan Code ASCII Code Shift Alt ** ** Shift * (PrtSc) ** ** Shift (|) 2B 7C Shift [space bar] 39 20 Shift CapsLock ** ** Shift Ins (0) 52 30 Shift Del (.
Keystroke Ctrl F9 Ctrl F10 Ctrl = Ctrl t 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 1 Ctrl PgDn Ctrl t (bksp.
Keystroke Ctrl Tab Ctrl Q (DC1) Ctrl W (ETB) Ctrl E (ENQ) Ctrl R (DC2) Ctrl T (DC4) Ctrl Y (EM) Ctrl U (NAK) Ctrl I (HT) Ctrl 0 (SI) Ctrl P (DLE) Ctrl [ (ESC) Ctrl ] (GS) Ctrl Enter (LF) Ctrl Ctrl A (.
Keystroke Scan Code ASCII Code 1 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.
I Keystroke Scan Code ASCII Code Alt NumLock Alt Scrolllock Alt- Alt Home Alt 7 Alt PgUp Alt - ** ** 82 - - - - Alt F1 Alt F2 Alt F3 Alt F4 Alt F5 Alt F6 Alt F7 Alt F8 Alt F9 Alt F10 AA = Alt t Alt [b.
Keystroke Scan Code ASCII Code Alt 2 79 00 AIt 3 7A 00 Alt 4 7B 00 Alt 5 7C 00 Alt 6 7D 00 Alt 7 7E 00 Alt 8 7F 00 Alt 9 80 00 Alt 0 81 00 Alt End - - Alt -1 - - Alt PgDn - - Alt t (bksp) - - Alt Tab .
Keystroke Scan Code ASCII Code Alt [ Alt ] Alt Enter - - - Alt Ctrl Alt A Alt S Alt D Alt F Alt G Alt H Alt J Alt K Alt L Alt ; Alt ’ ** 1E 1F 20 21 22 23 24 25 26 - - Alt Shift (left) Alt Z At X Al.
Keystroke Alt . Alt/ Alt Shift (right) Alt Alt* Alt Alt [space bar] Alt CapsLock Alt Ins Alt Del Scan Code ASCII Code - - - - ** ** ** ** - - - - 39 20 ** ** - - - - ** No codes - Ignored System Diagn.
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