Question about Samsung SyncMaster 731B 17" LCD Monitor

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My samsung syncmaster 731b monitor screen turns off when i start up my system. I have to turn it on and off several times to get it to stay on .Do i need a new monitor. Harold

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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

Posted on May 02, 2010

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Where can i get a screen bulb for a samsung syncmaster 731b?


I've had good results with the Cold Cathode Fluorescent Lamp (CCFL) tubes from Moniserv's parts site. In particular, check out the tech support page.

Jan 23, 2011 | Samsung SyncMaster 731B 17" LCD Monitor

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I shut down my mini mac and SyncMaster 731B every night. For the past couple weeks, when I start up in the morning, the monitor keeps going dark. It will blink the apple screen for a second, then go...


For the monitor this old, It probably has dying power supply due to bad DC filter caps.
http://s807.photobucket.com/albums/yy352/budm/Samsung%20730B/

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 (they should be replaced in a set), 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
Capacitors kit: http://lcdalternatives.auctivacommerce.com/ he can make you a set of caps for you

Sep 18, 2010 | Samsung SyncMaster 731B 17" LCD Monitor

1 Answer

Samsung syncmaster 731bf screen stays white!


It sounds like the T-CON board (part of the LCD panel) is not getting the +5vdc from the logic bd. Check the ribbon cable between the panel and the logic bd. first, then check to see if it has blown fuse on the T-CON bd.
http://s807.photobucket.com/home/budm/allalbums

http://s807.photobucket.com/albums/yy352/budm/LCD%20panel/

May 30, 2010 | Samsung SyncMaster 731B 17" LCD Monitor

1 Answer

My screen does not come on when computer is turned on.I have a samsung syncmaster 2253lw as my main screen and have had both operating in the past at the same time.


Please check your plug if it is plug in properly or firmly. Locate the switch and turn it on again. If stil persist, try to inspect whether cpu is beeping while turning on. If its beeping something is wrong in your cpu or monitor depending upon the beeps.

Jan 27, 2010 | Samsung SyncMaster 731B 17" 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

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