BenQ BenQ IL420 Interactive Digital Signage User Manual - Page 78
Troubleshooting, Clock Frequency, Phase, Position
View all BenQ BenQ IL420 Interactive Digital Signage manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 78 highlights
78 Troubleshooting Troubleshooting Problem No picture No sound The computer input image looks strange The control panel buttons do not work Solution 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" on page 75 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 "Supported input signal resolution" on page 75 to select a supported resolution 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 firmly. • Have you chosen an unsupported output resolution on the computer? Refer to "Supported input signal resolution" on page 75 to select a supported resolution and try again. • Use the Auto Adjustment function ("Adjust Screen" on page 43) to let the display automatically optimize the display of computer image. • If the result of the Auto Adjustment function is not satisfactory, use the Clock Frequency, 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.