COBY electronic NBPC1220 - Manual (Page 24)

Page 24 Coby Electronics Corporation www.cobyusa.com Page 25
Problem Solution
The screen is unreadable or
distorted. Check that screen resolution and color quality are correctly set.
Check that the monitor type is correct. This information is avail-
able under the menu Display Settings  Monitor.
Confirm that the display device driver is installed correctly. This
information is available under the menu Personalize  Display
Settings  Advanced Settings  Adapter. The Adapter Informa-
tion window should display the correct device driver name.
NOTE: The device driver name depends on the video chip that has
been installed on your computer. Click the Properties button and
check the “Device status” box to confirm that the device is working
properly. If not, click the Troubleshoot button.
Incorrect characters appear
on the screen. Check that your application and operating system are correctly
installed.
Missing, discolored, or
bright dots appear on the
screen every time you turn
on your computer. Check that the surface of the screen is not scratched or damaged.
If there is no visible damage, these small idiosyncrasies are a
standard element of TFT screen technology and will not affect
the computer’s performance.
Sound
No sound can be heard from
the speaker even when the
volume is turned up. Confirm that the Mute function is off.
Check that no external device, such as a headphone or speaker, is
plugged into the audio output (headphone) jack.
Check that speakers are selected as a playback device.
Troubleshooting