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Re: samsung LM1770A 17
Most probably the Power Supply, generally is in these things... perhaps the Electrolytic Capacitors have Dried out and gone bad and need to be replaced, often all I do is replace every large Electro on the Power Board, (Often with much higer Temperature and spec Caps) and that "Fixes" it..
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The power supply is the first thing that the 110v electric line goes into.
The invertor is the next item past the power supply, or sometimes contained within it. I do not thing monitors are a DIY repair.
First substitute a different monitor to confirm that it is, in deed , the monitor and not the video card.
CH000315, Black borders on side of screen. CH000316, Dead or black pixels. CH000403, Macintosh and/or PC monitor compatibility.
Black borders on side of screen.
Additional information about what causes black borders on computer displays.
Ok well the Power adapter is not really that special.. what you need is a Centre Pin POSITIVE 12volt at say 4 amp power supply unit. I would get it from Ebay.. perhaps even being able to get an exact one from Ebay.. Othewise try the Samsung site and purchace direct. Look here for an idea.