Troubleshooting
73
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
Supported input signal resolution
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
Supported input signal resolution
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.
The control panel
buttons do not work
Have you locked the control panel buttons? Unlock the
buttons and try again.
Summary of Contents for RM5502K
Page 1: ...RM5502K RM6502K RM7502K RM8602K Interactive Flat Panel User Manual ...
Page 27: ...Basic operations 23 3 Fill in the following fields and click Submit to create a new account ...
Page 45: ...Menu operations 41 Enter the proxy host name ...
