Question about Samsung SyncMaster 2233SW Monitor

1 Answer

Samsung 2233SW started going to black about one second after power on, with or without a signal applied, any suggestions?

Posted by on

  • lcjj Jun 16, 2010

    Ok, good stuff about the bad caps. HOWEVER, all caps in this unit LOOK pristine! I have just learned about the trick of darkening the room and using an LED flashlight against the monitor. I see the image IS THERE! So, now why is the CCFL turning off right after power up or if a new signal is applied?



1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 20 achievements.


    An expert that got 10 achievements.


    An expert that got 5 achievements.

  • Master
  • 11,361 Answers

Most common failures in the LCD monitors are bad capacitors (bulging top/seal or leaking) in the power supply, blown fuses, poor solder joints, failed inverter circuits (blown fuse, shorted transistors, shorted/open transformers), bad lamps (poor solder connections or worn out lamps). You will need to open it up and inspect the inside, see example of failed SAMSUNG monitors to get some ideas what to look for:
Post back what you see inside so we can guide you further and it will help out other people in the future also.

Posted on Jun 07, 2010

  • 1 more comment 
  • Bud Martin
    Bud Martin Jun 16, 2010

    The back light inverter circuits are not working, it either that it is not receiving the 12~18 vdc from the power supply or the inverter circuits may have bad lamps assemblies, bad inverter transformers, bad transformer driver IC/Transistors. Those are tge things you need to check. I use test lamps to narrow down the problem, without them it will be hard. The LCD driving circuits are working and they rarely fail, it is the back lights the shine the light from the back through the LCD panel to let you see the pictures.

    The capacitors can look OK but thet can have high ESR, you will need cap meter taht can also read ESR.

    Thsi will have to be troubleshoot down to component level. You may want to look for replacement board but that will not gurranty that you may have bad lamps asemblies.

    If you look through my albums, you will see what bad lamps and bad caps with high ESR look like.

  • hught78 Sep 20, 2010

    @lcjj - did you ever figure out what was wrong with your monitor? I'm having the exact same problem and don't have much more than a multimeter to test things out. Caps look great on visual inspection and i can see the screen doing the flashlight trick. any assistance would be greatly appreciated.

  • recon215 Mar 07, 2011

    Same issue here. Let us know whats going on please.
    @budmrtn, could you email me please? I have no idea how to contact you in here.




1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

2 Answers

Samsung syncmaster 2233sw driver for windows 8

I would make sure my video drivers adapters are up to date. Use windows update to automatically set the proper driver to the display and to your video adapter.

Mar 24, 2014 | Samsung SyncMaster 2333SW 23" LCD Monitor

1 Answer

I continully receive a message of the screen is not in optimal mode of 1920X1080. I have gone to the screen setttings and have applied this yet I continue to receive the message when I go to play a game....

Your game does not natively run at the same resolution as Windows. Check the video/graphics settings in the game itself to adjust the resolution to 1920x1080.
Note that increasing the resolution to this, will drastically increase the load on your graphic card.

Feb 26, 2011 | Samsung SyncMaster 2233SW Monitor

1 Answer

Samsung SyncMaster 2233SW Monitor "Not

The "native" resolution of the monitor is the "optimal" resolution -- it looks best to use this resolution.

So, right-mouse click anywhere on your Windows desktop "wallpaper".
Click Properties.
Click Settings.
Move the "Screen Resolution" slider to the recommended settings.
Click Apply.
Click OK.

Nov 21, 2010 | Samsung SyncMaster 2233SW Monitor

2 Answers

Goes to black after one second

lcjj, Is unit black and blank screen? or just black screen? do flashlight test after pc boots-up. Can you see images and icons on desktop screen with aid of flashlight?? How old is the unit? Is unit out of warranty? Have you been to YOUTUBE to check-out DIY video clips on troubleshooting and the low cost DIY repairs being done to CCFL back-lit lcd monitors? Your monitor's problem not new one!! Try some of these web sites: and and and and and after you finish with that you can start reading the fixya PROFILES of "buddymc" , "budmrtn" , "12fixlouie" In short... you will do one of these four things. 1. DIY refurbishment. 2. Contract out refurbishment work. 3. Trade in unit for new. 4. Do a cash+old swap out with Samsung if they are doing a "just out of warranty" swap for "premature failed" units. Do your test and research first. Then make decision on what to do. Good luck. 12fixlouie

Jun 07, 2010 | Samsung SyncMaster 2233SW Monitor

2 Answers

Want to use samsung 2233SW LCD monitor as TV

Yes you can, if you has PC desktop, plug your lcd to it. change LCD resolution from your PC.
-- Right Click on desktop
-- Click properties >> click settings tab
-- You will see Screen Resolution, change to the lowest (800x600)
-- Nnplug VGA cable from PC
-- Now plug the cable tou your TV Tuner.

Feb 08, 2010 | Samsung SyncMaster 2233SW Monitor

2 Answers

Computer monitor screen stays black

please check the signal cable..... sometimes the signal cable gets faulty and it would be best if you replace it..

Jun 02, 2009 | LG Flatron L1710S 17" LCD Monitor

Not finding what you are looking for?
Samsung SyncMaster 2233SW Monitor Logo

Related Topics:

915 people viewed this question

Ask a Question

Usually answered in minutes!

Top Samsung Computers & Internet Experts

Computer Repairing
Computer Repairing

Level 3 Expert

14641 Answers


Level 3 Expert

102366 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17130 Answers

Are you a Samsung Computer and Internet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides