Question about Samsung SyncMaster 740N 17" LCD Monitor

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Samsubg Monitor flickers

Can anyone give me a fix for a flickering screen on a Samsung 740N 17" LCD Monitor? E-mailme at ouryoshi@comcast.net Thank you

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  • Anonymous Nov 16, 2008

    Mines actually a 710n but the "fault" appears the same, every 5 seconds it seems to lose power and goes black for a fraction of a second. MOST frustrating !!!!!!!!!!!

  • design2host Mar 16, 2009

    I have the same problem with the Samsung SyncMaster 740n Cant seem to find a solution. It happens only when the screen is refreshed (as in when you type something, there is an animation playing etc). When there is no activity on the screen there seems to be no problem. Tried play around with the refresh rate thing by sqitching from 60 hz to 70 and 75... but no luck. Any suggestions?

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My samsung 740N lcd Monitor is flickering. can i get a solution of this problem?

Posted on Nov 05, 2008

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It could be the capacitors on your monitor's Power Supply. Open up the lcd and check the power supply board see if you see any "BULGED UP" capacitors. If thats the case you most likely just need to replace the bad capacitors. Go to radio shack or electronics supply store buy the same capacitors with the same mF and volts. If you can't find the same ones then always go with higher voltage. Replace the bad ones with new ones following this video. Make sure you note the negative terminals on the CAPS before you remove them. The shorter side on the new CAP is always negative.

Posted on May 03, 2009

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Check the capacitors inside see if they are blown

Posted on Jun 19, 2008

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Feb 24, 2011 | Samsung SyncMaster 740N 17" LCD Monitor

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Samsung sync master 740N no display. Flickered started then the display goes after its been on for a short wile. Could this be a problem with the capacitors?


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SyncMaster 740N 17" LCD Monitor: I have two of the SyncMaster 740N's as security mo...


Most common failures in the LCD monitors are bad capacitors (bulging top/seal or leaking) in the power supply, 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: http://s807.photobucket.com/home/budm/allalbums
Post back what you see inside so we can guide you further and it will help out other people in the future also.
http://en.wikipedia.org/wiki/Capacitor_plague

http://www.badcaps.net

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Control Panel
Display (or Display Properties)
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Nov 03, 2008 | Samsung SyncMaster 740N 17" LCD Monitor

1 Answer

Samsubg 17"LCD 740N monitor flickers


It sounds like the CCFLs (backlight lamps) in the monitor are failing. You might be able to get them replaced by the manufacturer if it's still within warranty. Otherwise the fix might involve an expensive technician and replacement parts.

Jun 10, 2008 | Samsung SyncMaster 740N 17" LCD Monitor

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