Question about Samsung 225BW LCD Monitor

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225BW LCD Monitor problem with Blank Screen

Hi, I have had 2 LCD screens giving me this problem. The main problem is, that I have to have the monitor on before turning on the computer. So that my computer upgraded automatically and restarted while the monitor is turned off, well when i go and turn on the monitor, no image is displayed at all, not until i restart the PC before an image is shown on the LCD screen. Anyone have a fix for this? or know why it does this?

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SOURCE: Samsung GH19LS LCD Monitor wont display computer signals

You should have received two cables with the monitor. One is for VGA and plugs into you video card or computer board . The second one is for DVI digidal video and if you have that cable it plugs into the square connector. Then if you look into your monitor manual or quick setup sheet it will tell you how to connect and set the monitor to either VGA or Digital. I'm sure that is what has to be set. Don't hook up both cables to the monitor and computer. Only use the one. Digital gives you a better picture if your computer has that function. Hope this is helpful. Bud

Posted on Jan 09, 2009

  • 49 Answers

SOURCE: screen goes blank after 2 seconds

Do you have the video set to a range that this display cannot handle? Try rebooting into Safe Mode and set the resolution down to 800x600 or 1024x768 and see if it that will get you back. If so, then look up the specs of the display and set it no higher than it's max.

If it physicaly powers OFF, then you probably have a power issue.

Posted on Jan 20, 2009

  • 1684 Answers

SOURCE: My Hanns-G HC194D LCD Monitor Takes Forever to come on


It sounds like you have a monitor with a common problem. After a few years some LCD monitors will blow a power supply. The problem is caused by parts called capacitors overheating in the confined space of the monitor. If you are good at electronics repair/soldering you can usually fix the problem. Check out a few pictures on my web site You can take the back cover off your monitor and look for the bad parts,replace any that look like the pictures and your monitor should work fine. The capacitors do need to be installed with the correct + and - connections, note the stripe on the old one and insert the new one the same way. If you don't want to try the repair yourself we offer a repair service for $35 plus shipping.

I hope this helps, if so please rate my solution.

Corporate Computer
Over 21 years of computer and printer support/repair

Posted on Jul 17, 2009

  • 152 Answers

SOURCE: Screen flashes - samsung 215tw LCD monitor

walkstex, I will answer the last ? first. All LCD monitors WILL NEED to have their "cold-cathode-fluorescent-tubes" replaced!!! As long as your display had a Bright, Crisp image displayed on it before this "FLASHING" symptom occured, then you don't need new CCF tubes. Your problem seems to be occuring in the electronic ballast circuit called an INVERTER. It Takes 12-15v DC and turns it into 800-1200v ac to light up the CCF tubes. This is the same technology used in the new style curlieQ screw-in light bulbs called CFL's. Only difference is they use what is known as a CONVERTER circuit----AC to AC!!!! And the tubes hung horizontally on the rear of your LCD panel are thin and straight. So, to answer your first ? Yes, it is an issue of getting the CCF tubes to light up. (backlighting) Now, I should also mention that there could possibly be a problem with the main power supply in the monitor. It is called a "switch-mode-power-supply" (smps) that supplies DC for the digital signal processing board (typ +5v) and 12-15v for the inverter. Well, This typical type of symptom could be as simple as a thermally fractured solder joint on the power supply board or some bad Filter capacitors could also need replacing. I suggest that you search web to find out more about the things I have mentioned in the above text. Do search for things like "swollen capacitors", "Bulging Capacitors" and checkout for some pictures of typical failures. Get back to me if you want to carry this any further on your own. Bye for now. I'm louie12fix on fixya or lmistyrel

Posted on Sep 23, 2009

  • 152 Answers

SOURCE: Have a Samsung SyncMaster 225bw.

Dyderich, Yes, You should read up on all the causes of LCD monitor failures!! Your symptom will be among the top three cause/complaint of failures. LCD units can be repaired. If you have never used a soldering pencil, digital volt meter, DMM or Oscilloscope, then you should keep yur gruby fingers on the outside of the monitor. Your monitor's "switch-mode-power-supply" and the "cold-cathode-fluorescent-tube's" and the "inveter" power supply that lights up the tubes will need to be evaluated(trouble shoot) by a TECHNICIAN who knows all there is to know about CCFT's and what it takes to get them to light up!!! Or you can trade up to a younger model, and repair/refurbish the old and keep as a spare. You could also see if SAMSUNG has some sort of swapout program for newly refurbished same model monitors? ? ? Check with a Samsung dealer and or their website. Bye for now. I'm louie12fix on fixya or lmistyrel

Posted on Sep 25, 2009

  • 732 Answers

SOURCE: I have a Samsung SyncMaster 931c monitor (2.5 yrs

jcacolice, Most likely your 931c will need work done on it. When strange things start to occur with any LCD CCFL backlit display I would suspect the "switch-mode-power-supply" first thing!!! If unit is out of warranty you or someone will need to inspect and troubleshoot it. A good place to start will be to see some DIY videos on YOUTUBE. Try search of "lcd monitor disassembly" and "lcd monitor repair" and learn all you can about the TOP CAUSES of monitor failure. Then visit (FYI) and for more info. Explore ALL your options before you do anything. Then get back to us here at fixya if you still need some asssistance. Read some of my other responses in my fixya profile and other those of other tech's on fixya.
Hope to see you back on fixya with a plan of action!! 12fixlouie

Posted on Dec 24, 2009

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Here is a link to a repair guide that may help you get it going again.

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Blank lcd screen when turned on . Wonder if backlight problem


A blank screen is usually caused by the power supply not giving the right voltages to the back light inverter, the bulbs last a lot longer than the power supply board. If you can do a little soldering then you should be able to do the repair yourself. Here is a link to a repair guide that shows how to dis-assemble the unit and get to the power supply board. There are 5 capacitors that will need to be changed and in most cases this will fix the type of issues you are having with this monitor.

I hope this helps, if so please rate my solution.


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My Syncmaster 225bw suddenly developed a horizontal line about 1/4 of the way up from the bottom. It looks like a single line of bad pixels. Is this possibly the screen itself, is it an inverter problem?...

If the inverter is bad you will black screen, the lines can be caused by failed T-CON board which is part of the LCD panel assembly. You may try reseating the ribbon cable on the LCD panel.
Please see LCD panel in my albums here:

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The power switch is a momentary tactile switch. If you want to fix it, you will have to turn it off and look at the size of the switch to try to find the replacement for it. Not much you can do but open it up to find the cause of the problem.

Apr 17, 2010 | Samsung 225BW LCD Monitor

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My monitor gets blank 2-4 seconds after I turned on

First place to look will be power supply section, look for bad caps first, post back what you see so we can guide you further, if the caps look OK then the problem can be bad inverter circuits, and worst case will be bad lamps. See example of failed SAMSUNG monitors due to bad caps here:

Feb 01, 2010 | Samsung 225BW LCD Monitor

1 Answer

Need to replace all capacitors in my 225BW. Need


The 225BW monitor uses the same capacitor kit that the 214T monitor uses. You can order the repair kit at: The kits run $12 including shipping. If you don't want to do the repair we do offer a repair service for $30 plus shipping.

I hope this helps, if so please rate our solution.

Corporate Computer

Jan 31, 2010 | Samsung 225BW LCD Monitor

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When turn on, get a picture for a fraction of a second then blank

you need your power supply repaired. you have bad capacitors.

Jan 01, 2010 | Samsung 225BW Monitor

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on ooptions screen, click box that says only show settings the monitor can handle. Then try changing the horizonal and vertical settings on monitor to match it up with your settings.

On your windows main screen, right click, then properties, then settings, check all the settings

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most common lcd monitor break down, check all electrolytic capacitors for leakage and loose board solder specially on the ccfl inverter section.

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