Lenovo V560 Notebook - Manual (Page 33)

Chapter 5. Troubleshooting
29
Computer screen problems
The screen is blank. • Do the following:
- If you are using the AC adapter, or using the battery, and the
battery status indicator is on, press Fn + ↑ to make the screen
brighter.
- If the power indicator is in blinking, press the power button to
resume from the sleep mode.
- If the problem persist, follow the solution in the following problem
“The screen is unreadable or distorted.”
- Press Fn+F2 to confirm whether 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. • Did you install the operating system or application program
correctly? If they are installed and configured correctly, have the
computer serviced.
Sound problems
No sound can be heard from the
speaker even when the volume is
turned up. • Make sure that:
- The Mute function is off.
- The headphone jack is not used.
- Speakers are selected as the playback device.
Battery problems
Your computer shuts down before
the battery status indicator shows
empty.
-or-
Your computer operates after the
battery status indicator shows
empty. • Discharge and recharge the battery.
The operating time for a fully
charged battery is short. • For details, see “Handling the battery” in Chapter 2.
The computer does not operate with
a fully charged battery. • The surge protector in the battery might be active. Turn off the
computer for one minute to reset the protector; then turn on the
computer again.
The battery does not charge. • For details, see “Handling the battery” in Chapter 2.
A hard disk drive problem
The hard disk drive does not work. • In the Boot menu in BIOS setup utility, make sure that the hard disk
drive is included in the Boot priority order correctly.