Samsung SyncMaster 512N 15" Flat Panel LCD Monitor Logo
Posted on Nov 17, 2009
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I have a mac mini osx10.4 with a 512N syncmaster samsung monitor. The monitor worked fine for 2 years and up till the last month while I am on the computer the monitor will go black with a message saying "video function not supported" Optimum 1268X780 60mhz. I can unplugged and reboot monitor works again and I reset the monitor to what I was told and it still will go blank after I am on the computer from any where from 5 minutes to 1 hr. I never know when it is going to go out. Any help would be appreciated. I have changed all my cables and have added a new dvi-vga adapter and that doesnt even help. Thank you Toni

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  • Posted on Nov 17, 2009
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Samabbott, Toni, The very first thing to check is Samsung warranty.. If not valid you will need to check and see if Samsung has a cash+old unit swapout program for refurbished same model??? Will this 512N do same thing if connected to different pc? If so, then I would suspect the unit's power supply. Whenever strange or weird stuff starts to randomly take place with an LCD display, I would first check the "switch-mode-power-supply"! Have you tested the pc with different Known Good lcd unit? Try the above stuff and report back with a new comment. 12fixlouie

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