Product Information Guide
Page 1
... 10 MHz, the light is located above the keyboard. programmable 64 Bytes of CMOS RAM lor real-llme clock. Num Lock LCD DIP Switch Settings Switches Functions 1 2 3 4 ON OFF ON ON ON OFF OFF ON OFF OFF ON OFF LCD Normal LCD Reverse LCD Screen Mode 0 LCD Screen Mode 1 LCD Screen Mode 2 LCD Screen Mode 3 Select LCD J Select RGB color monitor Equity Series Computers 12/12/88 EQLT - 1 Computer Specifications I " Waghi- 12 6 Ibs (Dual floppy disk drive conhguratlon) Display Options: Screen Type: LCD Color: Size (Active Area): Aspect...
... 10 MHz, the light is located above the keyboard. programmable 64 Bytes of CMOS RAM lor real-llme clock. Num Lock LCD DIP Switch Settings Switches Functions 1 2 3 4 ON OFF ON ON ON OFF OFF ON OFF OFF ON OFF LCD Normal LCD Reverse LCD Screen Mode 0 LCD Screen Mode 1 LCD Screen Mode 2 LCD Screen Mode 3 Select LCD J Select RGB color monitor Equity Series Computers 12/12/88 EQLT - 1 Computer Specifications I " Waghi- 12 6 Ibs (Dual floppy disk drive conhguratlon) Display Options: Screen Type: LCD Color: Size (Active Area): Aspect...
Product Support Bulletin(s)
Page 1
... most consistent results, use the absolute minimal boot configuration that 's 'clean' - Also, some programs will be some exceptions to the above rule. in the CONFIG.SYS file. There will require a minimum number of 1 PSB No...device driver (CD-ROM, local area network, etc.), obviously the necessary device driver(s) must be loaded. Such programs will usually display this requirement if they are run , either from diskette or hard drive. For the most cases, the computer should be started using an MS-DOS boot diskette that 's allowed by the hardware being tested. EPSON Product Support...
... most consistent results, use the absolute minimal boot configuration that 's 'clean' - Also, some programs will be some exceptions to the above rule. in the CONFIG.SYS file. There will require a minimum number of 1 PSB No...device driver (CD-ROM, local area network, etc.), obviously the necessary device driver(s) must be loaded. Such programs will usually display this requirement if they are run , either from diskette or hard drive. For the most cases, the computer should be started using an MS-DOS boot diskette that 's allowed by the hardware being tested. EPSON Product Support...
Product Support Bulletin(s)
Page 20
... HDD is the aspect ratio of the EL element. LCD Displays Q26. The replacement procedure is the expected lifetime of the Equity LT User's Guide. What is explained in order to remain on by adjusting the brightness down, keeping the EL only as bright as the time it back on constantly. This works out to half of no keyboard activity. Q28. A. You can also set an option...
... HDD is the aspect ratio of the EL element. LCD Displays Q26. The replacement procedure is the expected lifetime of the Equity LT User's Guide. What is explained in order to remain on by adjusting the brightness down, keeping the EL only as bright as the time it back on constantly. This works out to half of no keyboard activity. Q28. A. You can also set an option...
Product Support Bulletin(s)
Page 23
... keyboard input. Q38. The differences are : 1) The Equity LT ROM BIOS turns off Q37. A. The backlight is different between the LCD display (88 Hz) and the RGB display (60 Hz). The BIOS changes frame frequency automatically, depending on causes the BIOS boot code to the LT BIOS. Also, the "Modifying the DEVICE LIST" selection has been removed. 8) The LIGHTON command has been added. Page 8 of 9 The backlight period is enabled. 3) A "quick boot" function...
... keyboard input. Q38. The differences are : 1) The Equity LT ROM BIOS turns off Q37. A. The backlight is different between the LCD display (88 Hz) and the RGB display (60 Hz). The BIOS changes frame frequency automatically, depending on causes the BIOS boot code to the LT BIOS. Also, the "Modifying the DEVICE LIST" selection has been removed. 8) The LIGHTON command has been added. Page 8 of 9 The backlight period is enabled. 3) A "quick boot" function...
User Manual
Page 9
...Using the Equity LT 3-1 Using the AC Adapter 3-1 Using the Battery 3-1 LED Indicators 3-3 Opening and Closing the Screen 3-4 Using the Handle 3-5 Selecting Execution Speed 3-5 Resetting the Computer 3-6 Caring for the Backlit Screen 3-7 Special Keys on the Equity LT Keyboard 3-7 The Equity LT Character Set 3-9 Using Disks and Disk Drives 3-9 How disks work 3-9 Choosing diskettes for the Equity LT 3-10 Caring for disks and disk drives 3-11 Inserting and removing diskettes 3-12 Making backup copies 3-13 Write-protecting diskettes 3-13 Using a single diskette drive 3-14 Turning...
...Using the Equity LT 3-1 Using the AC Adapter 3-1 Using the Battery 3-1 LED Indicators 3-3 Opening and Closing the Screen 3-4 Using the Handle 3-5 Selecting Execution Speed 3-5 Resetting the Computer 3-6 Caring for the Backlit Screen 3-7 Special Keys on the Equity LT Keyboard 3-7 The Equity LT Character Set 3-9 Using Disks and Disk Drives 3-9 How disks work 3-9 Choosing diskettes for the Equity LT 3-10 Caring for disks and disk drives 3-11 Inserting and removing diskettes 3-12 Making backup copies 3-13 Write-protecting diskettes 3-13 Using a single diskette drive 3-14 Turning...
User Manual
Page 10
...Replacing the Backlit Screen Element A-2 Turning Off the Hard Disk A-9 Turning off the hard disk first A-9 Turning off the hard disk later A-9 B Troubleshooting B-1 Error Messages B-1 The Computer Fails to Start Up B-1 The LCD Screen is Blank B-2 The Monitor Screen is Blank B-2 The Computer Does Not Respond B-3 Low Battery Problems B-3 Diskette Problems B-4 Hard Disk Problems B-5 Software Problems B-5 Printer Problems B-6 C Power-on Diagnostics C-1 System Device Check C-1 Clock and CMOS RAM Check C-2 RAM Check C-2 Keyboard Controller and Keyboard Check C-3 Floppy Disk Drive...
...Replacing the Backlit Screen Element A-2 Turning Off the Hard Disk A-9 Turning off the hard disk first A-9 Turning off the hard disk later A-9 B Troubleshooting B-1 Error Messages B-1 The Computer Fails to Start Up B-1 The LCD Screen is Blank B-2 The Monitor Screen is Blank B-2 The Computer Does Not Respond B-3 Low Battery Problems B-3 Diskette Problems B-4 Hard Disk Problems B-5 Software Problems B-5 Printer Problems B-6 C Power-on Diagnostics C-1 System Device Check C-1 Clock and CMOS RAM Check C-2 RAM Check C-2 Keyboard Controller and Keyboard Check C-3 Floppy Disk Drive...
User Manual
Page 13
... the battery in serial and parallel interfaces. Introduction 1 If you have a color monitor, you can use it in remote locations when you don't have the hard disk drive system, you can connect it to the Equity LT to take advantage of internal memory and comes with built-in the process. The Equity LT includes 640KB (kilobytes) of the color and the larger display. With the AC adapter connected...
... the battery in serial and parallel interfaces. Introduction 1 If you have a color monitor, you can use it in remote locations when you don't have the hard disk drive system, you can connect it to the Equity LT to take advantage of internal memory and comes with built-in the process. The Equity LT includes 640KB (kilobytes) of the color and the larger display. With the AC adapter connected...
User Manual
Page 14
... to Use This Manual This user's guide explains how to set up your computer and prepare it for use and care for your MS-DOS manual. If you are explained in Chapter 1 to set up and care for your Equity LT, check the troubleshooting guidelines in Chapter 2 to connect a color monitor or replace the backlit screen element, see Appendix A. In fact, if you have the hard disk model...
... to Use This Manual This user's guide explains how to set up your computer and prepare it for use and care for your MS-DOS manual. If you are explained in Chapter 1 to set up and care for your Equity LT, check the troubleshooting guidelines in Chapter 2 to connect a color monitor or replace the backlit screen element, see Appendix A. In fact, if you have the hard disk model...
User Manual
Page 25
... setup. Otherwise, the new settings may have set these devices to set to determine the LCD mode in use, whether an external diskette drive is connected, the number of diskette drives in use, and the type of these switches for you turn it at this section, however, to your computer is disabled. Note Change the DIP switches only while your computer, do it on connecting an external drive, see Appendix A, "Options and Maintenance." The Equity LT has two sets...
... setup. Otherwise, the new settings may have set these devices to set to determine the LCD mode in use, whether an external diskette drive is connected, the number of diskette drives in use, and the type of these switches for you turn it at this section, however, to your computer is disabled. Note Change the DIP switches only while your computer, do it on connecting an external drive, see Appendix A, "Options and Maintenance." The Equity LT has two sets...
User Manual
Page 28
The system functions controlled by these switches are on . Use external diskette drive Use parallel printer External diskette drive is B External diskette drive is A 1 diskette drive 2 diskette drives Serial port is secondary Serial port is primary 1 I2 ON 1 OFF I I 3 I I 4 I I ON OFF ON OFF ON OFF Switch 1, use of parallel port-This switch tells your computer whether a diskette drive or a parallel printer is connected to the port, turn this switch on the left side of DIP switches are listed in...
The system functions controlled by these switches are on . Use external diskette drive Use parallel printer External diskette drive is B External diskette drive is A 1 diskette drive 2 diskette drives Serial port is secondary Serial port is primary 1 I2 ON 1 OFF I I 3 I I 4 I I ON OFF ON OFF ON OFF Switch 1, use of parallel port-This switch tells your computer whether a diskette drive or a parallel printer is connected to the port, turn this switch on the left side of DIP switches are listed in...
User Manual
Page 29
... one external) turn it on troubleshooting or performing the system diagnostics in port to be secondary, turn switch 4 on, 7 Turning On the Computer After you complete steps 1 through 6, you install the optional modem card, which is primary or secondary. If you 're ready to turn on the power and start using a copy-protected application program that requires the diskette to avoid accidentally damaging your Epson...
... one external) turn it on troubleshooting or performing the system diagnostics in port to be secondary, turn switch 4 on, 7 Turning On the Computer After you complete steps 1 through 6, you install the optional modem card, which is primary or secondary. If you 're ready to turn on the power and start using a copy-protected application program that requires the diskette to avoid accidentally damaging your Epson...
User Manual
Page 32
... the right drive, drive A, The Equity LT needs a disk operating system (DOS) to function. If you the computer can use MS-DOS; Loading MS-DOS 8 Follow these steps to load MS-DOS and make the screen any key when ready This tells you want to adjust the intensity of your dealer. To preserve the life of the screen (and the computer's battery), do not make working copies...
... the right drive, drive A, The Equity LT needs a disk operating system (DOS) to function. If you the computer can use MS-DOS; Loading MS-DOS 8 Follow these steps to load MS-DOS and make the screen any key when ready This tells you want to adjust the intensity of your dealer. To preserve the life of the screen (and the computer's battery), do not make working copies...
User Manual
Page 37
... if you want to change ) the following: l Real-time clock's date or time l Backlight period for the backlit model screen l Default settings for the correct installation information. Press Y so you turn on the reference diskette to run the Setup program. You may need to give the computer information about the way it searches the CMOS RAM for the serial (RS-232C) port or ports.
... if you want to change ) the following: l Real-time clock's date or time l Backlight period for the backlit model screen l Default settings for the correct installation information. Press Y so you turn on the reference diskette to run the Setup program. You may need to give the computer information about the way it searches the CMOS RAM for the serial (RS-232C) port or ports.
User Manual
Page 49
... computer is on or reset your hard disk. Drive Assignments MS-DOS always recognizes the hard disk as drive B, unless you turn on . 2-6 Preparing a Hard Disk for Use Hard Disk Power Switch The hard disk in Appendix A. From now on, each time you turn off the computer, it automatically turns off the hard disk even though the switch is drive A. When you have connected an external diskette drive to your Equity LT has its own power switch. Turn off the computer...
... computer is on or reset your hard disk. Drive Assignments MS-DOS always recognizes the hard disk as drive B, unless you turn on . 2-6 Preparing a Hard Disk for Use Hard Disk Power Switch The hard disk in Appendix A. From now on, each time you turn off the computer, it automatically turns off the hard disk even though the switch is drive A. When you have connected an external diskette drive to your Equity LT has its own power switch. Turn off the computer...
User Manual
Page 56
... more power from the battery than the standard screen. Special Keys on the Equity LT Keyboard Certain keys on your keyboard serve special functions when your dealer to do not want to be aware of the LCD screen, you have changed this backlight period. (For instructions see the screen clearly. The default time is to install it only as bright as the computer's battery, the computer turns the backlighting off DIP switch...
... more power from the battery than the standard screen. Special Keys on the Equity LT Keyboard Certain keys on your keyboard serve special functions when your dealer to do not want to be aware of the LCD screen, you have changed this backlight period. (For instructions see the screen clearly. The default time is to install it only as bright as the computer's battery, the computer turns the backlighting off DIP switch...
User Manual
Page 96
... the problem: 1. Then turn off the power switch. If you have the backlit model screen, you may need to adjust the screen display. 2. The Monitor Screen is properly connected to the computer. (See Chapter 1 for instructions.) Wait at least five seconds and then turn it on . 2. Check that the AC adapter is Blank If the computer starts up , check the electrical outlet. Use the controls on . 4. Be sure the power switches...
... the problem: 1. Then turn off the power switch. If you have the backlit model screen, you may need to adjust the screen display. 2. The Monitor Screen is properly connected to the computer. (See Chapter 1 for instructions.) Wait at least five seconds and then turn it on . 2. Check that the AC adapter is Blank If the computer starts up , check the electrical outlet. Use the controls on . 4. Be sure the power switches...
User Manual
Page 107
... of the error message(s) (Y/N)? Press Enter to return to repeat the test; You see this prompt: Printout is not installed correctly. The tests for the device now start. Before you request a printout, be sure your printer. If you wish to the menu. After printing the error message, the program displays this prompt: How many times (1-9999): Type the number of...
... of the error message(s) (Y/N)? Press Enter to return to repeat the test; You see this prompt: Printout is not installed correctly. The tests for the device now start. Before you request a printout, be sure your printer. If you wish to the menu. After printing the error message, the program displays this prompt: How many times (1-9999): Type the number of...
User Manual
Page 110
...-select the keyboard test from the DEVICE LIST and check that allow you cannot see any key is shown on the upper right side of the keyboard layout. so the colors are using the LCD screen, you to identify particular problems related to exit. Video Adapter and Display Check Use this option to check the operation of the Num Lock, Caps Lock, and Scroll Lock indicators is incorrect, press N and Enter.
...-select the keyboard test from the DEVICE LIST and check that allow you cannot see any key is shown on the upper right side of the keyboard layout. so the colors are using the LCD screen, you to identify particular problems related to exit. Video Adapter and Display Check Use this option to check the operation of the Num Lock, Caps Lock, and Scroll Lock indicators is incorrect, press N and Enter.
User Manual
Page 128
... port 901 Serial port yg232c) 1101 1102 1103 Message V30 CPU ERROR 8254 TIMER COUNTER REGISTER ERROR 8254 TIMER COUNTER ERROR 8237 DMA CONTROLLER REGISTER ERROR 8237 DMA REFRESH ERROR 8048 SELF DIAGNOSTIC ERROR 8259 INTERRUPT CONTROLLER ERROR 146818 CMOS BATTERY ERROR 146818 CMOS CHECKSUM ERROR V30 INSTRUCTION ERROR MEMORY/PARITY ERROR 8048 ERROR KEYBOARD IS DEFECTIVE V-RAM ERROR ATTRIBUTE ERROR CHARACTER SET ERROR 40-COLUMN CHARACTER SET ERROR 320 x 200 GRAPHICS MODE ERROR 640 x 200 GRAPHICS MODE ERROR SCREEN PAGING ERROR COLOR VIDEO ERROR FLOPPY DISK CONTROLLER ERROR SEQUENTIAL SEEK ERROR...
... port 901 Serial port yg232c) 1101 1102 1103 Message V30 CPU ERROR 8254 TIMER COUNTER REGISTER ERROR 8254 TIMER COUNTER ERROR 8237 DMA CONTROLLER REGISTER ERROR 8237 DMA REFRESH ERROR 8048 SELF DIAGNOSTIC ERROR 8259 INTERRUPT CONTROLLER ERROR 146818 CMOS BATTERY ERROR 146818 CMOS CHECKSUM ERROR V30 INSTRUCTION ERROR MEMORY/PARITY ERROR 8048 ERROR KEYBOARD IS DEFECTIVE V-RAM ERROR ATTRIBUTE ERROR CHARACTER SET ERROR 40-COLUMN CHARACTER SET ERROR 320 x 200 GRAPHICS MODE ERROR 640 x 200 GRAPHICS MODE ERROR SCREEN PAGING ERROR COLOR VIDEO ERROR FLOPPY DISK CONTROLLER ERROR SEQUENTIAL SEEK ERROR...
User Manual
Page 146
... switches, removing, A-2 Screen paging check, D-11 SCROLL LED, 3-3, 3-8 Scroll Lock key, 3-3, 3-8 Secondary serial port, 1-14, 1-25 -27 Seek check, D-15, D-21 Selecting CPU speed, 3-5, B-6 Selecting test, D-2 SELECT program, 2-1, 2-3-5 Self test, internal, 1-16, C-1 -6 Sequential seek check, D-15 Serial, cable, 1-9 interface, 1, 1-6, 1-9, E-1 port, 1-9, 1-14, 1-22, 1-25 -27 port check, D-17 -19 printer, 1, 1-6, 1-9 -10 RS-232C port, 1-9, E-1 SETMODE command, 1-9 Setting date, 1-24 Setting time, 1-23-24 Setup menu, 1-23 Setup program, 1-22 -28 Single diskette drive, using, 3-14 Slots, option...
... switches, removing, A-2 Screen paging check, D-11 SCROLL LED, 3-3, 3-8 Scroll Lock key, 3-3, 3-8 Secondary serial port, 1-14, 1-25 -27 Seek check, D-15, D-21 Selecting CPU speed, 3-5, B-6 Selecting test, D-2 SELECT program, 2-1, 2-3-5 Self test, internal, 1-16, C-1 -6 Sequential seek check, D-15 Serial, cable, 1-9 interface, 1, 1-6, 1-9, E-1 port, 1-9, 1-14, 1-22, 1-25 -27 port check, D-17 -19 printer, 1, 1-6, 1-9 -10 RS-232C port, 1-9, E-1 SETMODE command, 1-9 Setting date, 1-24 Setting time, 1-23-24 Setup menu, 1-23 Setup program, 1-22 -28 Single diskette drive, using, 3-14 Slots, option...