IBM ThinkPad 760E, Руководство пользователя

Страница: 259 / 331

Troubleshooting
Problem Action
xxxxx KB OK appears
and the computer halts. Have the computer serviced.
The screen is unreadable
or distorted. Verify that:
The ThinkPad display driver is installed correctly (refer to the Chapter 7 for
installation instructions).
The refresh rate settings in the ThinkPad Features program's display setup
screen (under the Advanced... button) are set to your display resolution and
color type.
Incorrect characters
appear on the screen. Verify that operating systems and application programs have been installed and
configured correctly.
If so, have the computer serviced.
The screen stays on
although the power switch
is turned off. Press the Power Shutdown switch on the rear of the computer with the tip of a
pen to turn off the computer; then turn the computer on again.
The computer goes into
suspend mode
immediately after the
POST. (The suspend
lamp turns on.) Verify that:
The battery pack is charged.
The keyboard is firmly closed.
The environmental temperature is within the acceptable range. Refer to
Appendix C, “Features and Specifications” on page 291.
If the preceding items are correct, have the computer serviced.
Error 190 appears and the
computer immediately
turns off. The battery pack is low in power. Connect the AC Adapter to the computer, or
replace the battery pack with a fully charged one.
Missing, discolored, or
bright dots appear on the
screen at all times. (TFT
model only.) The computer LCD contains more than 1,440,000 thin-film transistors (TFTs). A
small number of missing, discolored, or bright dots on the screen is an intrinsic
characteristic of TFT LCD technology and is not an LCD defect.
Chapter 8. Solving Computer Problems
241