HV power supply is out (drives the light behind the lcd screen)..
Open monitor and look at power supply board for capacitors which are "balooning" or deformed in any way. These look like cylindars on the board. These tend to dry out and make what you are describing occur. Replacing them usually fixes about 80% of the problem you are describing. Those parts run about $0.25 to $0.75 each.. well worth trying, right?
SOURCE: Video Game image is in Black and White in Samsung T220HD
Connected to "Y"? That is for the rgb cables for a high def connection method. You need to find the video in connection plug, usually yellow to get a color picture for the games. Hope this helps.
SOURCE: MONITER LIGHT IS GREEN BUT ONLY SHOWS A NORMAL SCREEN FOR 1/2 SECOND THEN TURNS BLACK
HI. I had the same problem with mine. It would flash the screen on for a split second and then turn black, the whole time the power light remained green. Upon opening up the case, I pulled the combo power supply board/inverter board out for inspection. I noticed one of the capacitors had a bulge on top indicating it was bad. It was the the 680uf 25v capacitor. I desoldered it, and soldered in the new one. After hooking everything back up, bingo!! Monitor now works perfectly. I couldn't find an exact match to the capacitance locally, but I had a 1000uf 35v cap in my utility box. It worked fine as a replacement. You can usually go within 30 percent of tolerance and be alright. Just don't go under on capacitance or voltage. I hope this helps.
SOURCE: Samsung T220HD unreliable power-on and freak volume turn-down
Good news. These monitors come with 3yr warranty. Contact Samsung.. I just did.
SOURCE: Samsung T220HD will not work with Dell Latitude
Change the Screen refresh rate to 60Hz. Go to Control Panel> Display> setting> advance> Monitor, change to 60 Hz.
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