Troubleshooting - BenQ RE6503A User Manual

Troubleshooting

Problem
No picture
No sound
The computer input image
looks strange
The control panel buttons do
not work
The remote control does 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
56 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 56
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
56 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 the buttons
and try again.
• Have you locked the remote control function? Unlock the
function and try again.
• Check for incorrect battery orientation.
• Check for dead batteries.
• Check your distance and angle from the display.
• Check whether remote control is properly being pointed at the
display's remote control sensor window.
• Check for any obstacle between the remote control and the
remote control sensor window.
• Check that the remote control sensor window is not under
strong fluorescent lighting, or in direct sunlight.
• Check for any devices (computer or personal digital assistant,
PDA) nearby that transmit infrared signals which may cause
interference to signal transmission between the remote
control and the display. Turn off the infrared function of these
devices.
57
Solution
Supported input signal resolution on page
Supported input signal
to select a supported resolution and
Supported input signal resolution on page