Troubleshooting - BenQ RP790 Manual De Instrucciones

Troubleshooting

40
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 frmly.
• Have you chosen an unsupported output resolution on the
computer? Refer to
page 39 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
signal resolution on page 39
and 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 frmly.
• Have you chosen an unsupported output resolution on the
computer? Refer to
page 39 to select a supported resolution and try again.
• Use the Auto Tune function
28) to let the display automatically optimize the display of
computer image.
• If the result of the Auto Tune function is not
satisfactory, use the Phase, Horizontal Pos. and
Vertical Pos. functions to manually adjust the image.
Have you locked the control panel buttons? Unlock the
buttons and try again.
Solution
Supported input signal resolution on
Supported input
to select a supported resolution
Supported input signal resolution on
(See Picture menu on page