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Monitor comes on for a split second, then goes to black

I have an LG L194WT 19" Flatron monitor. I sold it on eBay (it was working fine) but the buyer got it and told me the screen blacked out after 1 second or so. He returned it and it's doing the same thing to me. The power stays on, but the monitor blacks out. He said he tried it on multiple computers. When I turn the monitor off and back on, it comes on for a brief second then goes off again.

Thanks in advance for any help.

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  • Edward Sidney Apr 24, 2009

    i have the same problem.lcd goes black after split second. did try with working lcd.doin same thing.cant i bridge , so lcd can work only on 1

    pair backlights.

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This is a problem with the capacitors in many different monitors. I have 5 IBM ThinkVision monitors sitting on my desk at work with the same problem.
If you know what you are doing, pop the monitor open and have a look at the powerboard inside it. There are four main capacitors, and its likely one or 2 will be popped. Get some replacements, solder them in and you're set.
Again, only if you know what you are doing. $3 of capacitors is cheaper than $50 repair.

Posted on Feb 02, 2009

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I just had a westinghouse 20" repaired that was doing this: Was the backlight inverter. It cost $160.00 to repair, but luckily I had an extended warranty.

Posted on May 31, 2009

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The fluorescent backlight bulb is either burned or loose.

Posted on Jan 21, 2009

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Hi, I turned my computer and monitor off as I normally do last night and when I came downstairs this morning to turn my computer and monitor on, my monitor didn't turn on. I pressed the power button on...


You need your monitor repaired or replaced.
Unlike a computer, there is not much troubleshooting beyond making sure it is plugged into a live outlet and turned on which you did already.
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My lg flatron model w1934s was working fine but now it will not come out of power saving mode at all. What should I do?


Try turning it off and hold the power switch in for about a 30 seconds. This may help to reset the monitor. Afterwards, try and power it up again.

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LG monitor turns on for a split second and then goes black


Sorry to be the bearer of bad news but you called it, the monitor needs to be replaced.Now all we have to do is set the actual time of death...only kidding. Take care, Dana

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Lg flatron blank screen


t certainly seems like the monitor is not getting a signal. Did this happen after you changed something, or just on normal boot up?
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May 09, 2009 | LG Flatron L1951S 19" LCD Flat Panel...

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Screen flashes only for a split-second (as a second display for an iMac)


The inverter is faulty.If your Monitor is powered by a mains'kettle' type lead,then it MAY be repairable,provided you can find someone to do it.If you have an external power supply,then the chances are you have a separate inverter,and it is doubtful whetther you can find the fault or a replacement circuit board....which is why we have become a throw away nation !!

May 09, 2009 | LG Flatron L1951S 19" LCD Flat Panel...

1 Answer

I have a L194WT LG Flatron monitor. One day it


Same problem started happening two days ago and ever since. I called LG and the product falls under a 3yr product warranty according to them (from my original purchase date of January 20, 2007). They will send packing slips to me so I can send the defective unit back to LG. I was told I am eligible for a replacement monitor - which will be shipped to me within 10 to 14 days (consecutive days, not business) - although I'm not sure what I'm being sent in return. My suspicion is that this monitor issue is a known issue by LG and they are quietly replacing the unit to those who follow through by calling CS.

Tips: Have your original purchase date on hand (in the form of a receipt) just in case they want proof of purchase.

Apr 16, 2009 | LG Flatron L1951S 19" LCD Flat Panel...

1 Answer

The monitor get on for a second, then it goes black


sounds like a blown backlight (the TFT screen is lit from behind by thin white flourescenet type tubes,

if these become faulty then you cannot see the display output as it is no longer lit from behind

Mar 27, 2009 | LG Flatron L1951S-SN 19" LCD Flat Panel...

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LG Flatron L1951S-SN 19 in. Flat Panel picture problem


When the picture disappears again take a flashlight and shine it in the bottom left hand corner where the Windows Start button is located. If you can see a faint image then your back light is failing. If that?s not the case the next step would be to attach another monitor to your computer to see if the problem disappears. If it does that points to the monitor, if it doesn?t then we need to take a look at the computer itself. Let us know what you find out and please don?t forget to rate this posting.

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