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Troubleshooting
Problem
No picture
No sound
The computer input image
looks strange
The control panel buttons
do not work
Check the following:
• Is the display turned on? Check the power indicator of the
display.
• Is the signal source device turned on? Turn on the device
and try again.
• Are there any loose cable connections? Make sure that all
cables are connected firmly.
• Have you chosen an unsupported output resolution on the
computer? Refer to
page 66
to select a supported resolution and try again.
• Have you chosen an unsupported output resolution on the
DVD or Blu-ray disc player? Refer to
resolution on page 66
try again.
Check the following:
• Have you turned on the mute function on the display or the
input source device? Turn off the mute function or increase
the audio volume level and try again.
• Are there any loose cable connections? Make sure that all
cables are connected firmly.
• Have you chosen an unsupported output resolution on the
computer? Refer to
page 66
to select a supported resolution and try again.
• Use the Auto function (VGA only) to let the display
automatically optimize the display of computer image.
• If the result of the Auto function is not satisfactory, use the
Phase, H Position and V Position functions to manually adjust
the image.
Have you locked the control panel buttons? Unlock
thebuttons and try again.
Solution
Supported input signal resolution on
Supported input signal
to select a supported resolution and
Supported input signal resolution on
67
Troubleshooting
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