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Try to reset it
Scroll through the menu options by using the up and down arrow buttons located just under the "Menu" button. Scroll down to the "Setup" icon, which looks like a big cog. Press the "Auto/Set" button to access the Setup menu.Scroll, using the down arrow, to "Factory Reset." This setting is located at the bottom of the Setup menu.Press the "Menu" button on the right side of the monitor. This will bring up the On Screen Display. If nothing happens when the "Menu" button is pressed, press and hold it for several seconds to unlock the On Screen Display.Press the "Auto/Set" button to choose "Factory Reset" and then press the down arrow to reset the monitor.
To see the button on the right hand side of this monitor you will need to shine a really bright light on it, but the buttons from top to bottom are: 1, up-arrrow, down-arrow, and 2.
On the side of the monitor press the 1 button to activate the menu.
A configuration menu for the monitor will appear; from that menu highlight the "Input Select" menu item using the up and down buttons on the monitor; when you have the item high-lighted, press the 2 key.
A new menu will appear, and then you can select the menu item called HDMI on the left and PC waaay over on the right. Select this menu item with the up and down arrows and when it is selected,
And press 2 like you did in the previous step.
Apparently there's some sort of a strange difference between using this monitor as a "video monitor" and using it with a computer.
such issues have occured in the Past, Please Check if the Crack appears in the BIOS mode.Safemode also Try another Monitor to find out if it is not the wall paper because if it is then the Crack will appear in the other Displa too...
all those sounding intelligent and saying that replacing lcd hardware will fix the problem probably didnt have the problem themseleves . i had exactly same problem with samsung syncmaster 2043swx monitor . i just restarted and booted into safe mode ( by pressing F8 key at startup ) tried changing reolution in display settings . rebooted in normal mode and asll lines are gone and never appear again . i am uisng windows Vista . so i think it is probably a driver glitch something .
I'm not an expert, but I have determined that the vertical bars that are often red, sometimes blue ... and sometimes both ... are related to a bad control board. I've also read that a common fix is to buy a repair kit with includes the ysus, zsus and control boards ... all replaced together. My experience was that after a month or two with the 1.5" wide stripes, that you eventually loose the entire picture and have sound only. MIne comes back, but won't stay working for very long and the stripes are always there (buy used to fade and flicker sometimes). I'm planning on replacing the control board.
to adjust those mirrors, you need to power down, unplug, remove the top, remove the wires from the main board, remove the main board, adjust one mirror, reinstall everything, power up, see whatever difference it made, power down and repeat until it's fixed. it's quite a chore. if that's not the problem, you'll need to replace the optical engine (which isn't cheap) because they don't sell individual parts.
Sounds like an inverter problem. If the power supply is internal replace the capacitors coming out of the voltage regulators. These are usually 1000mf and/or 470mf. If that doesn't do the trick look up the numbers on the 8-pin chips that drive the secondary transformers on the inverter to see if they are getting the right voltages. Good Luck!
That means the LCD panel itself (the actual glass) is broken. Don't delay, return it and get another before it's too late! The problem will most likely NOT go away, and there is no fix other than to replace the panel itself. The panel, when purchased separately, can cost more than the monitor itself.
I was just looking at Samsung's site regarding this issue. It is most likely a line of dead pixels.
Direct from their site:
"The thin red, green, blue, white, black, or yellow line you see running through your LCD monitor is most likely a line of dead pixels. To fix this problem, you will have to get your monitor serviced or, if the monitor is new, replaced.
To set up a service appointment, contact Samsung Customer Care at 1-800-Samsung (1-800-726-7864). Have your monitor's model number and serial number on hand when you call."
http://erms.samsungusa.com/customer/sea/jsp/faqs/faqs_view.jsp?PG_ID=1&AT_ID=15336&PROD_SUB_ID=28&PROD_ID=-1
my momitor displays for 5 secs and then a red light blinks
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