11
Chapter 5 Troubleshooting
Failure Possible Reasons
Power cannot be turned on
• Check whether all cables are
connected correctly and the power
socket is turned on
• You can use another equipment
connecting with power socket to
check whether the power is on
No images or sound • Check whether the model is power
on (indicator light should be blue)
• Check other signal inputs to check
whether there’s a problem with
signal inputs
• Check whether cables are
connected correctly
• Check whether you set mute mode
The image isn’t displayed completely • Enter menu and select “automatic
adjustment”
Image Distortion
• To check whether aspect ratio of
image has been set correctly
Image is too bright, while image
distortion on bright regions
• Lower contrast rate
• Turn up the brightness
• Check whether the brightness
grade is too high
PC unable to display image • Check whether the resolution of PC
has been set too high, higher than
resolution ceiling supported
No image after installation of operation
system
• Restart the PC and press F8 to
enter “advanced boot”. Select and
enter the mode which is supported
VGA
No image after installation of graphics
drivers
• Restart the PC, enter the system
after 1-2 min or enter “Win+P” to
choose display mode