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I have a Samsung SyncMaster 740B screen and it is flickering how to I fix this

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Its probably the inverter board.It needs to be replaced. take it apart. and you will see a small circuit board.

Posted on Jun 11, 2008

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Syncmaster 740b not working


Check the DC filter caps in the power supply section.
If you are going to DIY and have proper tools and know safety precaution then please read on:
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: 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

Jul 08, 2010 | Samsung SyncMaster 740b 17" LCD Monitor

1 Answer

Flickering screen and wont light up. I tried hooking it up to another computer changed power cords and cables to no avail.


You tested the screen on another computer and the fault is same on both computers. This means the Samsung LCD screen is faulty, this fault could be a faulty inverter board that supplies high voltage to the CCFL lamp or the CCFL lamp is faulty.
If you want to fix it yourself then parts maybe available from LCD Parts.
Please click on this link to their WEB site :-
www.lcdparts.net

Jun 16, 2010 | Samsung SyncMaster 931B 19" LCD Monitor

1 Answer

Screen flickering on and off.


I have the same problem with mine. I've kinda narrowed it down to it being the power supply in the monitor. was told it is about a $20 fix but we'll see

Nov 16, 2009 | Samsung SyncMaster 731B 17" LCD Monitor

1 Answer

May samsung lcd monitor have no power


Power supply unit might be bad.

Check for popped capacitor.

Mar 28, 2009 | Samsung SyncMaster 740N 17" LCD Monitor

1 Answer

Ghosting, Flickering, Green Sparkeling Lines, Color Washout.


I had a similar problem on a different monitor and fixed the green sparkles by selecting a lower refresh rate.

Aug 15, 2008 | Samsung SyncMaster 204B 20.1" LCD Monitor

2 Answers

Screen Shaking


make sure your pins on your mail connecter are 100% ok,then u
UPS of that system place far from the moniter .Insert VGA driver cd into drive and driver update via device manager and restart u r
system.In case ur graphics card damaged the moniter normaly
work as u describe.

Jul 17, 2008 | Samsung SyncMaster 753S 17" CRT Monitor

4 Answers

Samsung SyncMaster 214T flickers


Hi There,

I managed to fix my Samsung SyncMaster 214T from that flickering. Just changed 3 capacitors and it worked fine!!

Jun 01, 2008 | Samsung SyncMaster 214T (Silver) Monitor

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