User's Guide T 46
Troubleshooting - Problems and Solutions
2. Problems related to Screen
Problems related to the monitor screen and their solutions are listed.
Problems
Screen is blank and power indicator is off
"Check Signal Cable" message
"Video mode not supported" message
Picture rolls vertically.
Image is not clear. Picture is blurred.
Picture image is unstable and
vibrates.
Ghost images are shown in the picture.
The image is too light or too dark
Screen color is inconsistent.
Color image is distorted with dark shadows.
White color is poor.
Power Indicator blinks green.
Screen is blank and power indicator light is steady green or blinks every 0.5 or 1 seconds
The monitor front control buttons do not respond.
Solutions
zEnsure that the power cord is firmly connected and the LCD monitor is on. (Refer to the Connecting Your Monitor)
zEnsure that the signal cable is firmly connected to the PC or video sources. (Refer to the Connecting Your Monitor)
zEnsure that the PC or video sources are turned on.
zCheck the maximum resolution and the frequency of the video adaptor.
zCompare these values with the data in the Preset Timing Modes Chart.
zCheck if the signal cable is securely connected. Connect it again securely.(Refer to Connecting to a Computer)
zRun Frequency Coarse and Fine tuning.
zTurn on again after removing all accessories (video extension cable, etc.)
zSet resolution and frequency to the recommended ranges.
15 inch model (1024 x 768 @ 60Hz), 17 inch model (1280 x 1024 @ 60Hz)
zCheck if the resolution and frequency set for the computer
video card falls in the range supported by the monitor. If not, reset them referring to the current Information under the monitor menu and Preset Timing Modes.
zAdjust the Brightness and Contrast. (Refer to the Brightness, Contrast)
zAdjust color using User Mode under OSD Color Adjustment menu.
zThe monitor is currently saving the changes made in settings to the OSD memory.
zThe monitor is using its power management system.
zpress a key on the keyboard
zCheck if OSD Lock/Unlock is on by pressing Menu button.
zIf the problem persists, contact the service center.