Wooyoung Telecom Co. Ltd. U90W Manual Do Utilizador
9
Troubleshooting
What you see
Ensure that the power cord is firmly connected and the LCD
monitor is on.
monitor is on.
“ VIDEO MODE NOT
SUPPORTED ” message
“NO SIGNAL” message
Screen is blank and power indictor
is off
�Check the maximum resolution and the frequency of the
video adaptor.
�Compare these values with the data in the Display Modes
Timing Chart.
�Ensure that the signal cable is firmly connected to the PC
or video sources.
�Ensure that the PC or video sources are turned on.
The image is too light or too dark
�Adjust the Brightness and Contrast.
�Refer to the Brightness/Contrast
The image color is not good
�Adjust the Color
�Refer to the Color
Image is not centered on the
screen
�Executes “Auto Adjustment”.
The power lamp flickers.
�The monitor is using its power management system.
�Move the computer’s mouse or press a key on the key-
board.
Image is not stable and may
appear to vibrate
�Check that the display resolution and frequency from your
PC or video board is an available mode for your monitor.
On your computer check : Control Panel, Display, Settings
On your computer check : Control Panel, Display, Settings
�Note : Your monitor supports multiscan display functions
within the following frequency domain:
Suggested Actions
6
19 inch wide
408.24
255.15
0.2835
16.2 M
1440 900@60Hz
1440 900@75Hz
1440
24pin DVI-D Connector
20
0.5
(Speaker Max 4W )
25
445
350
190
4.3
77
900@60Hz
0.2835