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The easiest way to check this problem out is take your monitor over to someone who has a computer or if you have an extra computer at home hook the monitor up to see if it stops doing this. Then you will know if it is not the monitor. Then you can focus on the video card going bad or is bad. Change the card with a new one, problem is solved. Check the cables connections make sure they are not loose as well. Restart you computer also discharge it by pushing in the power button in while the computer is unplugged from the wall. John
You can measure the adapter output with a voltmeter. The output should match the voltage marked on the adapter. This model uses a 12-volt adapter.
If the adapter doesn't have any output, it may be because the wire has broken inside the cable near the plug from flexing. It's possible to repair this by soldering on a new plug. Sometimes it's tough finding the right plug, though; some brands of equipment use oddball sizes.
You can also purchase replacement adapters. Several sources came up after a search for "scanport n9 adapter". Here's one on eBay. You'll be able to find what you need.
moneyshaker, Maybe your screen (LCD panel) is not blank, just BLACK!!! First thing to do is the flashlight test! With monitor connected to a KNOWN GOOD fully booted pc with WIN-desktop showing, reconnect N9 lcd to pc. Then and only then turn on N9 lcd. Note what you see or don't see!! If screen flashes on for 1 sec and goes to BLACK, then shine a bright flashlight 1" form screen at different angles and note if you see or don't see the desktop. This is only a test to check the condition of the unit's power supply and or INVERTER circuit. If you can still see the desktop even though the screen appears BLACK, then the "switch-mode-power-supply" is only partly bad. You did not state age of your unit? Most likely your problem is that the SMPS is detecting a fault in the INVERTER circuit that provides 800 to 1200 volts to light up the "cold-cathode-fluorescent-tubes" that are hung on the rear of the Clear Glass LCD panel and in front of a mirrored reflective surface. GEE wiz If I could take these long, straight, CCFT's and turn them into coils and mate them with an electronic ballast circuit called a CONVERTER circuit (ac to ac) and put them into an oversize light bulb screw-in base I could make millions.... Oh ****, That's already been done!!!! Oh! so that's how those new CFL lamps work. I suspect that your INVERTER (dc to ac) has almost bit the dirt. It will need to be looked at by a tech type person or you could visit Youtube and chcek for video clips that deal with monitor disassembly and or repair of the 2 most common LCD monitor failures. Look under "swollen electrolytic filter capacitors" and BAD capacitors, and Poor soldering and /or poor factory oven REFLOW SOLDERING and or Thermally intermittant soldering connections on printed circuit boards. This is only a guess as to what plagues you monitor. Please rate this response on fixya if it was of any help at all. im'louie12fix on fixya or lmistyrel @aol .com
if the screen was fryed the fuse would of blew which means there would be no lights at all.. the best thing you can do is plug your screen into another pc to see if anything happens.. if nothing happens then yeah your screen must of messed up somewhere.. but if your screen works on another computer then your graphics card config cant be right somewhere along the line
Your system was not affected because the PSU can prevent power surges. Your monitor's backlight has went out due to surges in electricity to your monitor. Unfortunately, you can not replace the backlight. I would suggest you buy a new monitor. 19" LCD Monitors has have went down dramatically in the past month.