Question about Samsung SyncMaster 2233BW 22" LCD Monitor

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Flicker then display goes black

Samsung syncmaster 22 inch flickers then display shuts off. power is still on but display is black

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  • ronf6 May 24, 2009

    Its plugged up through dvi and when i push power button the image appears on screen very darkly. It flickers fro a minute or two and then it goes black but the power light remains on.

  • Frank Zhang
    Frank Zhang May 11, 2010

    plug out VGA cable then turn it on, still flickers then dark and power lights on?

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Your monitor got trouble at:
1) monitor inverter board components fail like capacitor or MOSFET diver, it can repair or change this parts to fix.
2) there is disconnection between the inverter and CCFL lamps
need to check by technician, it could be fixed,
3) check the DCpower supply board capacitors swelling which need to reaplace, and fix it.
all steps need to do and fix it well.
hope help you something fixed, please take a rating let me know how much helped you thanks! keep in touch your question

Posted on May 24, 2009

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My samsung syncmaster 225bw when turned on would have the back light stay on for about one second, then go black, with or without the signal cable attached to the computer. After your screen goes black, shine a flash light on the screen to see if you can see any images
I repaired my monitor by replacing several bad electrolitic capacitors on the inverter board. These capacitors had broken bulging leaking vents on ther tops. There were two 820uf 25v and one 330uf 25v electrolitic capacitors that had failed. I ordered from www.digikey.com Panasonic FC series low impedance electrolitic capacitors, However, the 820uf was not curently stocked and had to be backordered, so I got one 1000uf and one 680uf to replace the two 820uf which were in parallel on the board. There were two 680uf 25v on my board which had not yet failed, so I also replaced them. On my monitor, the capacitors can not be longer than 20mm, due to space limitations. These electrolitic capacitors have a life time between 1000 to 5000 hours, so when you order get a few extra of the ones that went bad.

Posted on Jun 23, 2009

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I have the identical model with the same problem, I pulled it apart and the power supply/inverter board are one, and descovered the problem was in the inverter transformers, { 2 in all } because my monitor is 3 to 5 years old I felt replacing the whole board assembly would not justify the cost since something else could break down, I opted for a new monitor.

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http://www.ccl-la.com/blog/index.php/repairing-the-samsung-920n-920nw-monitors/

The repair guide has pictures and videos to guide you through the repair.
I hope this helps, if so please rate my solution.

BuddyMc

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Hello,

Call and get the RMA for your monitor, the problem is in the power supply and it will only get worse. This is a common problem with LCD monitors after 2-3 years of use.

Buddy
Corporate Computer
www.ccl-la.com


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