Reference
44
En
gli
sh
Troubleshooting
There are a very many external influences and circumstances beyond the control of BenQ which
may be causing problems with your BenQ LCD display. Some of the more common and user
fixable problems are listed below for your assistance.
Please check the following list before calling your nearest BenQ Customer Service Center, and
attempt the following steps to diagnose and fix the problem yourself:
TV
Symptoms
Possible Causes
Power does not turn ON
• Check that the power plug is securely inserted into both the
AC Mains socket on the display and the wall outlet, and that
the wall outlet is switched on.
• Check that power is available from the wall outlet by trying
another appliance or desk lamp from that same wall outlet.
There is no picture or sound
• Ensure the display power is ON (Indicated by the green
Power indicator on the front of the unit)
• Try a different input source to check whether the source is
at fault.
• Check for mis-connection of cables or for wrong input
source.
There are spots on the screen
Your TV antenna signal is being affected by interference from
automobiles, trains, high-voltage transmission lines, neon
signs or another sources of interference. Try redirecting or
relocating your antenna to reduce the affects of the
interference. If the antenna is exterior, have a suitable
qualified and experienced antenna specialist adjust the
antenna.
Degraded colours or hue
• Check whether all the picture adjustments have been
properly performed.
• Press the Preset
button on the remote control to select a
different picture mode.
Improper screen position or size
Try selecting a different aspect ratio by pressing the Aspect
/
button on the remote control.
The image appears distorted
Ensure the display's aspect ratio is correctly set to suit the
image source.
The image appears too bright,
and there is a loss of definition
in the brightest areas of the
image
• Reduce the contrast setting.
• The DVD player is set for a high-level output.
• The AV video signal has not been terminated properly
somewhere in the external AV equipment.
The image appears too 'washed
out', or the darkest areas of the
image appear too bright.
• Reduce the brightness level till the black areas of the picture
appear as black.
• The DVD player may be set at too high a brightness level.
Power indicator lamp flashes
red.
• Check the PC cable for disconnection.
• This indicates the PC input has been selected with no PC
source signal available.
• The display has been placed in PC Standby mode.
"Out of range" appears
The PC input signal resolution is set too high. 1360 x 768 @
60Hz is the highest acceptable PC timing.
DV3251-En.book Page 44 Monday, December 12, 2005 4:07 PM
