Question about LG W2452TX 24 inch LCD Monitor

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Dead computer monitor

Turned off but will not turn on again.

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Switch is usually at side just fill it just takes few seconds to turn on / maybe the lcd is not working an more gotta change it

Posted on Dec 05, 2012

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Posted on Jan 02, 2017

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My HP monitor was working fine then randomly one day it went dead, I turned it back on and I could see the screen and what it displayed for about 2 seconds, then the screen dies again. The power button is...


Sounds like your monitor is going dead. If its under warranty that would be the best way to go. Specifically it sounds like the power inverter is dead or there is a busted capacitor.

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When the computer is turned on a No Signal message appears on the monitor.


the graphics card is possibly dead or the lead to the monitor is unplugged, also possibly the monitor is dead. Try another monitor first if you get a display then it is the monitor.

Dec 28, 2010 | Computers & Internet

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I have shut down my computer that was working just fine until the next morning. When I turned it on again the computer turned on but everything connected to it (monitorkeyboardmouse etc.) won't come on....


Unplug everything not needed ( printers / copiers / usb devices and drives.
Check CD/DVD/floppy drive for discs, remove them.
Try using different power extension leads / check fuses.
If your monitor / mouse (if its optical) are also dead and dont show any sign of life, it sound like a problem with you power leads/adapters

Jul 18, 2010 | Computers & Internet

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Dell computer monitor wont come on when I turn


When you turn on most dell monitors they come on with a yellow light, then turn green when the monitor and video source synch. If your light is not turning from yellow to green, your monitor is either dead or not getting a signal from the video source it's plugged into. Verify in your BIOS settings that you have selected to output video through an installed card and not from the motherboard source. If the BIOS settings are correct, your monitor has died. If the light is turning green after you turn the computer on, press the menu button on the monitor and adjust the brightness/contrast until you have a picture. If you don't see anything when the menu button is pressed, then again your monitor is likely dead.

Jan 04, 2010 | Computers & Internet

1 Answer

Monitor comes on momentarilly, then screen turns black. when power is turned off and back on again, screen comes on for a second, then goes black again. Is this a bad monitor?


The only problem that causes the power on and off is a bad power supply. Go onto http://www.ebay.com and search for the monitor (power supply). My dad's old LCD screen had a bad power supply, but I found my old printer power cable (HP PSC 750 All-in-One Printer), and the monitor turned on successfully. It's not a bad monitor, unless the PSU hookup is like the PC ATX/Baby-AT PSU cable, then it might be the issue. Monitors before 2004 or 2005 have the ones, like the HP PSC 750 uses. The monitor is either defective, or the power supply is dead.

p.s.: check the voltage, amp usage, etc. on the PSU for the monitor for better results.

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Dead Monitor


check the plug at the back of the monitor. insert it properly

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CCFL backlight may be busted.. also ccfl inverter may need repair or replacement too..

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Screen goes black


This indicates the LCD inverter in the display is dead. If you have any experience with computer repair, replacing an LCD Inverter can be easy enough; However, it may not be worth it for a 15" LCD; replacement inverters can cost anywhere between $15 and $40 - a decent used 15" LCD only costs about 40 bucks these days...

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Flat screen monitor comes up with No Signal


If it goes to NO signal again, its not necessarily the whole Flat screen that is dead. Just replace the Video logic board with a known good one and it should work

Most monitors only have 2 or 3 boards
Logic board, Inverter, Power supply
or Logic video ,and a power supply board with an embedded inverter.

You have to open the monitor and replace.



Sep 13, 2008 | Computers & Internet

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