Troubleshooting
80
Troubleshooting
Problem
Solution
No picture
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
Dimensions (RP552H) on page 73
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
to select a supported resolution and
try again.
No sound
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.
The computer input
image looks strange
• Have you chosen an unsupported output resolution on
the computer? Refer to
Dimensions (RP552H) on page 73
to select a supported resolution and try again.
• Use the
Auto Adjust
function to let the display
automatically optimize the display of computer image.
• If the result of the
Auto Adjust
function is not
satisfactory, use the
Phase
,
Horizontal Pos.
and
Vertical Pos.
functions to manually adjust the image.
The control panel
buttons do not work
Have you locked the control panel buttons? Unlock the
buttons and try again.
