Samsung 730MW User Manual (ENGLISH) - Page 35
Troubleshooting, Self-Test Feature Check, for Display Properties.
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Self-Test Feature Check Check the following items yourself before calling for service. Contact the service center for problems that you cannot solve by yourself. Self-Test Feature Check | Not Supported Mode | Not Optimum Mode | Display Adapter Driver Maintenance and Cleaning | Symptoms & Recommended Actions 1. Self-Test Feature Check Your monitor provides a self test feature that allows you to check whether your monitor is functioning properly. 1. Turn off both your computer and the monitor. 2. Unplug the video cable from the back of the computer. 3. Turn on the monitor. The figure shown below ("Check Signal Cable") appears on a black background when the monitor is in its normal working condition though it does not sense any video signal: While in the Self-Test mode, the LED power indicator remains green and the figure moves around on the screen. 4. Turn off your monitor and reconnect the video cable; then turn on both your computer and the monitor. If your monitor screen remains blank after using the previous procedure, check your video controller and computer system; your monitor is functioning properly. 2. Not Supported Mode This indicates the display resolution or refresh rate is not properly set on your computer video card. Reboot the computer in Safe Mode and select "Default" in the "Refresh Rate Unknown" box while setting Adapter for Display Properties.