Samsung 920T User Manual (ENGLISH) - Page 68
Troubleshooting, Check List, Symptom, Solutions - phone
UPC - 729507708041
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SyncMaster 720B/721B Before calling for service, check the information in this section to see if you can remedy any problems yourself. If you do need assistance, please call the phone number on the Information section or contact your dealer. Symptom No images on the screen. I cannot turn on the monitor. Check List Solutions Is the power cord connected properly? Check the power cord connection and supply. Can you see "Check Signal Cable" Check the signal cable connection. on the screen? If the power is on, reboot the computer to see the initial screen (the login screen), which can be seen. If the initial screen (the login screen) appears, boot the computer in the applicable mode (the safe mode for Windows ME/XP/2000) and then change the frequency of the video card. (Refer to the Preset Timing Modes) Can you see "Not Optimum Mode", "Recommended mode : 1280 x 1024 60Hz" on the screen? Note: If the initial screen (the login screen) does not appear, contact a service center or your dealer. You can see this message when the signal from the video card exceeds the maximum resolution and frequency that the monitor can properly handle. Adjust the maximum resolution and frequency that the monitor can handle properly. If the display exceeds SXGA or 75Hz, a "Not Optimum Mode", "Recommended mode : 1280 x 1024 60Hz" message is displayed. If the display exceeds 85Hz, the display will work properly but the "Not Optimum Mode", "Recommended mode : 1280 x 1024 60Hz" message appears for one minute and then disappears. Please change to the recommended mode during this one-minute period.