BenQ VM2221 - Troubleshooting Common TV Issues

English
Reference 41
Troubleshooting
There are many external inuences and circumstances beyond the control of
BenQ which may be causing problems with your display. Some of the more
common and user xable problems are listed below for your information.
Please check the following list before calling your nearest BenQ Customer
Service Center, and attempt the following steps to diagnose and x the
problem yourself:
Symptoms Possible causes
The display does not
turn ON
• Check that the power plug is securely inserted into both the
AC-IN socket on the display and the wall outlet, and that the
wall outlet is switched on (if switched).
• Check that the main power switch is turned on.
• Check that power is available from the power outlet by trying
another known working appliance (e.g. desk lamp) from that
same power outlet.
There is no picture or
sound
• Check that the display is turned on (The power indicator
should be green).
• Try a different input source to conrm if the symptom is still
present or whether the source is at fault.
• Check for mis-connection of cables for that input.
• Adjust the volume control to check that isn't turned down.
• Make sure that the Speaker Out option in the Audio menu is
not set to Off.
Improper screen
position or size
• Try selecting a different aspect ratio.
• Try a different input source to conrm if the symptom is still
present or whether the source is at fault.
The image appears
distorted
• Ensure the display's aspect ratio is correctly set to suit the
image source.
• Try a different input source to conrm if the symptom is still
present or whether the source is at fault.
"Not supported"
appears
The PC VGA output signal resolution is set too high. 1920 ×
1080 @ 60Hz is the highest acceptable PC timing.