40
Troubleshooting Guide
Chapter. 7
Requirements Before Contacting
Samsung Customer Service Center
Before calling Samsung Customer Service Center, test your product as follows.
If the problem persists, contact Samsung Customer Service Center.
Checking the Resolution and Frequency
When a mode exceeds the supported resolution (refer to “Preset Timing Modes”), the
message “
Not Optimum Mode
” will appear briefly.
Check the following.
Screen issue
Troubleshooting
Solutions
The power LED is off.
The screen will not
switch on.
Make sure that the power cable is connected.
The screen is not clear.
The screen is blurry.
Set the resolution and frequency to the recommended level.
The screen is too bright.
The screen is too dark.
Adjust the
Brightness
setting.
Troubleshooting
Solutions
Screen color is
inconsistent.
Adjust the
COLOR
settings.
The colors on the screen
have a shadow and are
distorted.
Adjust the
COLOR
settings.
White does not really
look white.
Adjust the
COLOR
settings.
There is no image on the
screen and the power
LED blinks every 0.5 to 1
second.
The product is operating in power-saving mode.
Press any key on the keyboard or move the mouse to return
to normal operating mode.
Audio issues
Troubleshooting
Solutions
There is no sound.
Check that the source device connected to the product is
powered on.
The volume is too low.
Adjust the volume.
If the volume is still low after turning it up to the maximum
level, adjust the volume on your PC sound card or software
program.
