Question about Hyundai X224W
When you first turn on the monitor it works perfect, screen is beautiful, after about 10 minutes screen goes black, nothing on the screen, not sleep mode, power is on, lights are on, sound works from speakers. When screen goes black, no picture, nothing returns the screen, not safe mode, not resolution, not changing hertz. if I unplug the monitor and power off for 5 or more minutes, when I plug back in, the display comes back on for about 1 minute, then goes black again. I think it my be the sync board, but I'm not sure where to purchase one. Any help would be great. Thanks
Posted by Anonymous on
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Posted on Jan 02, 2017
SOURCE: flashes on then goes black
The green light only lets you know there is a valid video signal reaching the monitor. If the green light was not "on" your problems would possibly be within the pc itself. Something is not holding the circuit for the backlight "on" thus going black. Suggestions are: 1. Take it to get it repaired (if not under warranty) Hyundai carries a 3 yr warranty on this monitor. Website provided. 2. Buy a new monitor http://www.hyundaiq.com/Eng/Customer/CusSvc/Csvc.asp
Posted on Aug 27, 2007
I can verify after opening my monitor up as well that the solution posted by W_Steenhuis does in fact work. The power cord itself didn't have an adapter, but the power "adapter" was in the base of the monitor itself. The big circuit on that was where I found a diode and resister side by side that were badly burnt. I basically put some solder down each of the connections to the board to broaden the overall connection of each just to make sure that there were no gaps. Now my monitor works :)
Thanks again, W_Steenhuis.
Posted on Nov 07, 2008
may be there is a problem with your power cable. It might not be as tight as it should be or maybe the VGA cable is not tightly screwed up. Please check those physical connections and if it is still goes away after 3 seconds, take notice if there is any message appears on your screen. If there is no message, try to use another power cable or another VGA (blue) cable to it. If still did not work, try another CPU (Tower) if it will work. Otherwise, consult Hyundai for your Monitor repair and diagnostics....
Posted on Nov 23, 2010
SOURCE: hyundai L19T : power bottom
There's a good chance you have failing electrolytic capacitors either in the power section or the inverter section or both.
Any caps in these sections that look bulged at the top, or bulged/leaking at the bottom (look for discoloration of the circuit board around the base of the capacitor) need to be replaced.
If you repeatedly turn it off and on, eventually it'll probably stay on, but every time you turn it off, the unit will get harder and harder to start up until one day it just won't.
Sometimes you have to do the opposite to start it up and unplug it for some time and then try again.
If you aren't tech savvy, don't worry, read the rest of this solution and watch the videos.
If you are handy with a soldering iron and can identify the power supply and/or inverter / FM section for the backlights, an inexpensive handful of capacitors will likely fix you right up.
Match the capacitance on the capacitors. Go over voltage if you can, and still have them fit.
IE - it's not a bad idea to replace a 10V cap with a 16V or 25V or even a 50V, but don't replace a 680uF cap with a 500uF or a 1000uF (unless you are SURE it's only doing supply output ripple filtering,
and even then, you should go OVER, not under the uF rating).
Most of the caps that go are 10V 1000uF or 3300uF.
I found some great videos of the procedure (for many Samsungs with the same issue) on youtube.
Backlight related video here:
As you can see, this issue spans plasma TVs, as well as large and small LCD TVs and monitors, amplifiers, computer power supplies and motherboards, and other electronic equipment.
The parts are cheap, and skill required is minimal.
A great parts source is Digi-Key, and you can order the parts online at www.digikey.com
They typically cost under a dollar a piece plus a flat shipping rate.
The parts usually arrive one business day later.
If you watch the third video, you will see that even someone with no soldering experience can perform these repairs as demonstrated by the woman in the video.
Posted on Jul 21, 2011
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