Solving Computer Problems
70
Troubleshooting Charts
Display Problems
Problem
Action
Blank screen plus no
beeps.
Note:
If you are not sure
about the beeps, turn
the computer off, then
on again. If no beep
sounds, the speaker
icon is not displayed.
Check to see if:
1.The charged rechargeable battery is correctly installed.
2.The AC adapter is connected to the computer and the
power cord is plugged into a working electrical outlet (see
page 38 on how to use the AC adapter).
3.The power switch is on.
4.The Math Coprocessor just installed is installed correctly.
If the above items are correct and the screen still remains
blank, have the system serviced.
Blank screen plus one
beep.
Note:
Any beep is
always accompanied by
a display of the speaker
icon.
Check to see if:
1.Both brightness and contrast controls on the LCD display
are properly adjusted when an external PS/2 display is not
attached.
2.An external PS/2 display is turned on and the brightness
and contrast controls are turned up. When an PS/2 display
is attached. the LCD remains blank.
If the above items are correct and the screen remains blank,
have the system serviced.
Blank screen plus two
or more beeps.
Note:
Any beep is
always accompanied by
a display of the speaker
icon.
If the Dew point (humidity) icon or the Temperature icon
does not turn on, have the system serviced.
Only the cursor
appears.
Have the system serviced.
Screen Is unreadable
or distorted.
Have the system serviced.
Wrong characters
appear on the screen.
Have the system serviced.
Содержание L40 SX
Страница 1: ...Personal System 2 M odel L40 SX Quick Reference ...
Страница 2: ...Notes ...
Страница 3: ...i Personal System 2 M odel L40 SX Quick Reference ...
Страница 10: ...viii Notes ...
Страница 19: ...2 Connect the numeric keypad connector in order of and Open the cover of the numeric keypad Getting Started 7 ...
Страница 23: ...9 Adjust the display angle for your viewing comfort by moving it back and forth Getting Started 11 ...
Страница 70: ...Operating Your Computer 58 ...
Страница 80: ...Solving Computer Problems 68 Notes ...
Страница 84: ...Solving Computer Problems 72 Notes ...
Страница 88: ...Solving Computer Problems 76 Notes ...
Страница 94: ...Solving Computer Problems 82 Notes ...
Страница 102: ...Appendix A Additional Information 90 Notes ...
Страница 106: ...Appendix B Operating Instructions for the serial Adapter 94 Notes ...
Страница 112: ...Appendix C Installing the EMS Memory Manager 100 Notes ...
Страница 119: ...Notes ...