Troubleshooting - BenQ SD3742 Quick Start Manual

SD37_TW_EN.book Page 34 Thursday, June 19, 2008 3:20 PM

Troubleshooting

There are many external influences and circumstances beyond the control of
BenQ which may be causing problems with your display. Some of the more
common and user fixable 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 fix the
problem yourself:
Symptoms
The display does not
turn ON
There is no picture or
sound
The cable connection
is correct, but there is
only sound and no
picture is displayed
The image appears
distorted
34 Reference
Possible causes
• Check that the power switch on the power outlet is
turned on.
• Check that the power plug is securely inserted into both
the AC-INLET socket on the display and the wall outlet,
and that the wall outlet is switched on (if switched).
• Check that power is available from the power outlet by
trying another known working appliance (e.g. desk
lamp) from that same power outlet.
• Check that the display is turned on (The power indicator
should be green).
• Try a different input source to confirm 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
Off
menu is not set to .
• If the display is connected to a PC, make sure that the PC
is not in standby or hibernation mode (the power
indicator flashes red), and the PC's video display is switch
to external output.
• Check to make sure that the cables are firmly connected
to the terminals on the display.
• Ensure that the input signal resolution from the signal
source device (e.g., the PC or TV game console) is
supported by the display (up to 1080p for HDMI and
Component Video inputs, and 1920 × 1080 @ 60Hz for
PC and DVI inputs). If the input signal resolution is too
high or not supported, the picture will not be displayed.
Lower or select a compatible signal resolution on the
signal source device and try again.
• Ensure the display's aspect ratio is correctly set to suit the
image source.
• Try a different input source to confirm if the symptom is
still present or whether the source is at fault.
option in the Audio