Cybernet CyberMed S22 User Manual page 29

The screen is blank.
The screen is
unreadable or distorted.
Incorrect character
appears on the screen.
Sound problem
No sounds can be heard
from the speaker, even
when the volume is
turned up.
Other problems
The AIO PC does not
respond.
The AIO PC does not
boot from the desired
device.
DOC ID: 16000200
Check the following:
- Check the screen brightness setting.
- If the AIO PC is in sleep mode, press the power button
to resume the AIO PC.
- If the problem persists, refer to the solution in the
following problem "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 correct display mode is selected.
Check that the Operating System or application programs
are installed or configured correctly. If they are installed
and configured correctly, have the AIO PC serviced.
Make sure that:
- The Mute function is off.
- The headphone jack is not being used.
- Speakers are selected as the playback device.
To turn off your AIO PC, press and hold the power button
for 4 seconds or more. If the AIO PC still does not
respond, remove the AC adapter.
Check the Boot menu of BIOS setup utility. Make sure
that the Boot priority order is set so that the AIO PC starts
from the device you want.