20 Most Recent Samsung SyncMaster 204B (Silver, Black) 20.1 inch LCD Monitor Questions & Answers

in near your monitor u find any metallic product than you please remove the the monitor and plug in another side if your problems is steel not solved than you please contact samsung service center regarding this issue...........

With certain Samsung models, not only do the capacitors go, but the MOSFETS will go as well, possibly a fuse. The MOSFETs are the big bulky black things with a silver tab and three legs. Should be between the capacitors and the transformers. Just pull those both out and test them (Google "test MOSFETS") One is probably bad but they must be replaced in pairs.

Caps have completely flat tops, bad caps can also look normal but can have high ESR (Equivalent Series Resistance).<br /> What voltages are you getting at the secondary DC power supply side measure directly on those caps?<br /> <span style="FONT-SIZE: 10pt; FONT-FAMILY: 'Arial','sans-serif'"> <a href="http://s807.photobucket.com/home/budm/allalbums">http://s807.photobucket.com/home/budm/allalbums</a></span><br /> <span style="FONT-SIZE: 10pt; FONT-FAMILY: 'Arial','sans-serif'"><a href="http://en.wikipedia.org/wiki/Capacitor_plague">http://en.wikipedia.org/wiki/Capacitor_plague</a><span style="mso-tab-count: 1"> </span></span><br /> <span style="FONT-SIZE: 10pt; FONT-FAMILY: 'Arial','sans-serif'">Capacitors kit: <span style="mso-spacerun: yes"> </span><a href="http://lcdalternatives.auctivacommerce.com/">http://lcdalternatives.auctivacommerce.com/</a><span style="mso-spacerun: yes"> </span>he can make you a set of caps for you.</span><br />

Yes, It sounds like the backlight inverter circuit is shutting down. No inverter power, no backlight. On some monitors the inverter circuit will shot circuit the power power supply which makes the power light flash on some it just kills the backlight. You can usually check with a flashlight. Hold the flashlight pointed at the screen and see if you can see any of the icons or background picture. If you can then it is the backlight circuit or backlight tubes, usually the circuit.

Buddy

More likely to have bad caps just like 203b, 205b. Please see my pictures here so you will know what to look for inside:
http://s807.photobucket.com/albums/yy352/budm/Samsung%20205BW/

http://s807.photobucket.com/home/budm/allalbums
http://en.wikipedia.org/wiki/Capacitor_plague
http://www.badcaps.net

Set your screen resolution to 1600 x 1200, the native resolution of the screen.

This means you are not getting a signal to the monitor.
If you have 2 SVGA outlets on the back of your computer, are you using the correct one?

Next, I would suspect that the display on your video is out of range for the monitor. On the computer start-up, start hitting the F8 key until you get the black and white menu. Choose the VGA option to get Windows started and then you can set the correct resolution.

Different video cards offer different ways to deal with a user's screen. ATI, and others, for instance, offer a "virtual desktop", which does what you're describing. You get to the settings that control this feature from the Personalize->Display Settings menu options. Here you'll also find the different resolutions your video adapter supports. If the 1600 x 1200 resolution is listed, then I would remove the existing driver for both the adapter and the monitor, and reboot the machine. On startup, Windows will most likely detect the "new" hardware (actually, your existing ones) and will go through the process of finding the appropriate drivers for your adapter. Good luck!

Your screen's ratio is oriented to playing wide screen formatted movies. Set your screen resolution to a ratio that's more or less 2 to 1 and you'll have a more realistic depiction of people on photos.

Hello,

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 www.ccl-la.com/badcaps.htm 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.

Buddy
Corporate Computer
www.ccl-la.com
Over 21 years of computer and printer support/repair

Hello,

It sounds like you have a monitor with a common problem. After a few years some LCD monitorswill blow a power supply. The problem is caused by parts calledcapacitors overheating in the confined space of the monitor. If you aregood at electronics repair/soldering you can usually fix the problem. Check out a few pictures on my web site www.ccl-la.com/badcaps.htm 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 workfine. The capacitors do need to be installed with the correct + and -connections, note the stripe on the old one and insert the new one thesame way. Ifyou 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.

Buddy
Corporate Computer
www.ccl-la.com
Over 21 years of computer and printer support/repair

It sounds like you are in the Store Demo Mode. Turn it off and see if that fixes it. https://www.manualslib.com/manual/145519/Samsung-Syncmaster-Fx2490hd.html?page=27 Reset

Reset Samsung FX2490HD LS24F9DSM to factory state

monitorsfaq.com https://www.monitorsfaq.com > Factory reset > Samsung How to restore or reset Samsung FX2490HD LS24F9DSM. Reset to its factory state Samsung FX2490HD . How to hard reset monitor. Clear all settings or format. ..

The connecting cable or the video card would be the first suspects. Try a different cable to connect the monitor first, if there is no change, the video card in the computer would be second to look at. Can simply connect a different monitor to your computer to troubleshoot this. If the testing monitor works, it will be the graphics card that is the issue.

5 year old hyjacker, vinay. you forgot to say connected to what? is the screen only dim or dead.? even more important clue. RTM read page PDF 17, ? the OSD screen must work or the monitor is dead http://downloadcenter.samsung.com/content/UM/201205/20120517112305649/SA10-04Eng.PDF base pages https://www.samsung.com/us/support/owners/product/lcd-monitor-a10-series