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If the power-on password prompt does not appear, the brightness level
might be set to minimum brightness. Adjust the brightness level by
pressing Fn+Home.
If the screen still remains blank, make sure that:
v The battery is installed correctly.
v The ac adapter is connected to the computer and the power cord is
plugged into a working electrical outlet.
v The computer power is on. (Turn on the power switch again for
confirmation.)
If
these items are properly set, and the screen remains blank, have the
computer serviced.
Problem:
When I turn on the machine, nothing appears on the screen, but I hear
two or more beeps.
Solution:
Make sure that the memory card is installed correctly. If it is, but the
screen is still blank, and you hear five beeps, have the computer serviced.
If you hear 4 cycles of 4 beeps each, the Security Chip has a problem.
Have the computer serviced.
Problem:
When I turn on the machine, only a white pointer appears on a blank
screen.
Solution:
Reinstall your operating system, and turn on the computer. If you still see
only the pointer on the screen, have the computer serviced.
Problem:
My screen goes blank while the computer is on.
Solution
Your screen saver or power management may be enabled. Do one of the
following to exit from the screen saver or to resume from standby or
hibernation mode:
v Touch the TrackPoint or the touch pad.
v Press a key.
v Press the power switch
Problem:
The DOS full-screen looks smaller.
Solution:
If you use a DOS application that supports only 640×480 resolution (VGA
mode), the screen image might look slightly distorted or appear smaller
Solving computer problems
18 ThinkPad
®
R50 Series Service and Troubleshooting Guide