TROUBLESHOOTING
Page 29
DISPLAY TROUBLESHOOTING
If you encounter problems with the DTU-710 display, refer to the following table; your problem may be
described here and you can try the solution offered. For additional information about color issues, refer
to the documentation that came with your operating system or applications.
GENERAL DISPLAY PROBLEMS
No display. The power LED
is off.
•
Verify that the AC power cable is connected, and that the DTU-710
power switch is turned on.
•
Verify that the D
IGITAL
/A
NALOG
(DVI/VGA) switch is properly set.
Restart your computer after changing the position of the switch.
No display. The power LED is
lit blue.
•
Check the contrast, brightness, and backlight controls. Adjust as
necessary, or open the OSD menu, go to the R
ESET
menu and select the
R
ECALL
option.
The LED is lit orange.
The following message
appears briefly on your display
screen:
•
Your computer may be in a power management mode. Touch the pen tip
to the display screen, move the mouse, or depress any key on your
keyboard.
•
Verify that the video card is properly installed.
•
Check the video cable for bent or broken connector pins. Then properly
connect the video cable.
The following message
appears briefly on your display
screen:
•
Check that your computer is turned on.
•
Verify that you are using the video cable that came with the DTU-710.
•
Check that the DTU-710 video cable is fully connected.
•
Check the video cable and any video adaptors for bent or broken
connector pins. Then properly connect the video cable and any
necessary adaptors.
The following message
appears briefly on your display
screen:
•
The input signal frequency is incorrectly set or not compatible with the
DTU-710. Connect a different display and set the refresh rate (vertical
frequency) to some value between 50 and 75 Hz. If your video card
driver supports adjustment of the horizontal frequency, make sure it is
set to some value between 30 and 80 kHz.
•
The resolution is set too high (1280 x 1024, maximum).
•
The refresh rate is set too high (75 Hz, maximum).
•
Set the display properties to detect plug and play monitors.
DTU-710_Manual.fm Page 29 Monday, August 30, 2004 3:49 PM