Filter
Top Products
Problems Action
Blank screen with one
beep.
Note
If you are using an
external display, go to
“External Display
(CRT) Problems” on
page 6-8.
When you are using an external display with a display adapter, a
blank screen is normal.
When you return to operating mode from suspend mode, one beep
sounds and the suspend LED on the computer blinks and a
power-on password is required. The cursor does not appear as you
type the power-on password, but it is entered.
Verify that:
1. Both the brightness and contrast controls on the computer are
correctly adjusted.
2. The Display device parameter in the ThinkPad Features menu is
correctly specified. Refer to the information supplied with your
computer.
If the above items are correct and the screen remains blank, have the
system unit serviced.
Blank screen with a
continuous beep, or two
or more beeps.
This beep can be a message from the warning function of the Dock I.
See “Warning Function” on page 1-12. for the cause of the beep.
If the problem still occurs, have the system unit serviced.
Only the cursor “_”
appears.
If you are using an external display with a display adapter, the
cursor “_” is normal.
Otherwise, have the system unit serviced.
Screen is unreadable or
distorted.
Have the system unit serviced.
Wrong characters appear
on the screen.
Have the system unit serviced.
Chapter 6. Solving Problems 6-13
Title: C74AMST CreationDate: 06/23/93 17:09:07