My monitor shows a blank screen .But when I press the RGB, DVI button, I can see my desktop for a second then it stops displaying. I have to keep pressing the button to change the display type in order to...
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
Oct 06, 2009 |
Scanport N9 19" LCD Monitor