Lenovo G510s Touch (English) User Guide - Page 36

Troubleshooting, Display panel problems, Incorrect characters appear - screen install

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Chapter 4. Troubleshooting The computer does not return from sleep mode, and the computer does not work. • If your computer is in sleep mode, connect the AC power adapter to the computer and then press any key or the power button. • If the system still does not return from sleep mode, stops responding, or cannot be turned off, reset the computer. Unsaved data may be lost. To reset the computer, press and hold the power button for 4 seconds or more. If the computer is still not reset, remove the AC power adapter and the battery. Display panel problems The screen is blank. • Do the following: - If you are using the AC power adapter or the battery and the battery status indicator is on, press F12 ( ) to make the screen brighter. - If the power indicator is blinking, press the power button to resume from sleep mode. - If the problem persists, follow the solution in the next problem "The screen is unreadable or distorted." - Press F9 ( ) to confirm whether the backlight for the LCD screen has been turned off. The screen is unreadable or distorted. • Make sure that: - The display device driver is installed correctly. - The screen resolution and color quality are correctly set. - The monitor type is correct. Incorrect characters appear • Are the operating system or programs installed on the screen. correctly? If they are installed and configured correctly, have the computer serviced. 32

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32
Chapter 4. Troubleshooting
The computer does not
return from sleep mode,
and the computer does not
work.
•
If your computer is in sleep mode, connect the AC
power adapter to the computer and then press any
key or the power button.
•
If the system still does not return from sleep mode,
stops responding, or cannot be turned off, reset the
computer. Unsaved data may be lost. To reset the
computer, press and hold the power button for 4
seconds or more. If the computer is still not reset,
remove the AC power adapter and the battery.
Display panel problems
The screen is blank.
•
Do the following:
- If you are using the AC power adapter or the
battery and the battery status indicator is on, press
F12
(
) to make the screen brighter.
- If the power indicator is blinking, press the power
button to resume from sleep mode.
- If the problem persists, follow the solution in the
next problem “The screen is unreadable or
distorted.”
- Press
F9
(
) to confirm whether the backlight for
the LCD screen has been turned off.
The screen is unreadable or
distorted.
•
Make sure that:
- The display device driver is installed correctly.
-
The screen resolution and color quality are correctly
set.
- The monitor type is correct.
Incorrect characters appear
on the screen.
•
Are the operating system or programs installed
correctly? If they are installed and configured
correctly, have the computer serviced.