Question about Westinghouse L2046NV Monitor

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Screen Comes on and goes blank within 3 sec

When the computer powers on the screen immediatly goes black within 3 sec of showing the screen.I tried a different monitor and it works fine. So it is not a cord issue. It is a screen issue. What could be the problem?

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Look for bad caps (bulging/leaking tops) in the power supply first, it may have taken out the fuse and transistors in the inverter circuits also.
Most common failures in the LCD monitors are bad capacitors (bulging top/seal or leaking) in the power supply, blown fuses, failed inverter circuits (blown fuse, shorted transistors, shorted/open transformers), bad lamps (poor solder connections or worn out lamps). You will need to open it up and inspect the inside, see example of failed monitors to get some ideas what to look for: http://s807.photobucket.com/home/budm/allalbums
Post back what you see inside so we can guide you further and it will help out other people in the future also.
http://en.wikipedia.org/wiki/Capacitor_plague
http://www.badcaps.net

Posted on May 26, 2010

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Dear Sir, I am facing problem with my Samsung LCD monitor, when I switched on my Computer it shows the bootup screen, after booting the LCD screen goes blank, when i turned off the monitor and again turned...


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Monitor only stays on for 30 sec. & then goes off then if I remove the power cord & re-power it up it comes on for another 30 sec. then goes back off


Howdy folks. There are only 3 things that can go wrong with a screen. Since you both are experiencing the same symptoms, let's ask the same question: When the screen goes blank, is the power button still green or is it orange? A green light indicates a good power supply and a bad screen. An orange light indicates a bad power supply but a good screen. I used to take them apart and try to fix them but they just aren't worth the trouble because they are so inexpensive nowadays.
Either way, I'm the bearer of bad news. It looks like you'll both be getting new screens. Please don't hold it against me when you rate my solution! ;-)

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Monitor is black. Press power on monitor/screen shows for 1 sec


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Blank screen with intermittent operation


you have bad capacitors in the power board inside the monitor replace these and the monitor will work fine

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Hmm... is still not working


Start your computer and tap the F8 key as soon as the computer begins to power-up. Keep tapping until you come to the Safe Mode screen. When the screen alerts you to the fact that you have chosen Safe Mode, click OK.

When you get to the desktop go to the control panel and launch System Properties. Go to Hardware and Device manager. Click the arrow next to the Display Adapter. Point at the adapter, right click and chooser Properties. Click the Driver Tab. Roll back the video driver to previous driver.

If indeed you have installed a new driver that is not compatible with your video card, then rolling it back to the original may very well take care of this problem.

Good luck!

Aug 14, 2008 | HP Pavilion a800n (PP163AA) PC Desktop

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Monitor is blank/black


It is probably the inverter board inside the monitor.
(if the screen does properly display ever then it is not the screen)
It CAN be fixed but I do not suggest anyone open up a monitor (LCD or CRT)
who is not "technically inclined." If you really want to fix this
particular one then take it to a local tech and get an estimate first. If it's almost as much as a new monitor then buy a new one.

Mar 14, 2008 | Star Logic 17" LCD Monitor

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Monitor only stays on for 3 seconds


There is probably a bad capacitor within the monitor that will not allow the picture to "hold" in the on configuration. This will need to be replaced. You can send it back to Phillips, or 17" monitors are pretty cheap these days. I would suggest a Samsung or BenQ. They both carry 3yr warranties.

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