Acer notebook computer I made some changes in Setup but they dont seem to take effect., Nothing appears on the screen., The keyboard does not respond.

8-4 User’s Manual
Q: I made some changes in Setup but they don’t seem to take effect.
A: If you made any changes in Setup, these will only take effect the next
time the system restarts. Here a few ways to restart your notebook:
• In Windows 95, click on the Start button and select Shutdown….
Then select the Restart option.
• In POST, execute a warm boot (pressing E
-D -F ).
• In POST, close the display and open the display.
• Use the reset notch. See Q&A #2.
Q:
Nothing appears on the screen.
A: The notebook’s power management system automatically blanks the
screen to save power. Just press any key to turn the display back on.
If pressing a key does not turn the display back on, two things might be
the cause:
• The contrast and/or brightness level might be too low. Press
-
-Z ( ) to increase the brightness level; press - -[
() to increase the contrast level.
• The dis play device might be set to an external monitor. Press
-S ( ) to toggle the display back to the notebook.
Q:
The keyboard does not respond.
A: Try attaching an external keyboard to the PS/2 connector on the
notebook’s rear. If it works, contact your dealer or an authorized
service center as the internal keyboard cable may be loose.