Question about Samsung SyncMaster 540N 15" LCD Monitor

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My monitor sync master 540n when i want to use it not come display again keep in on position for half an hour it comes what is the problem

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Kalyanaramud, Not problem... only poor quality factory soldering of internal electronic components to circuit boards!!!!! 6000 to 10000 "on" / "off" cycles should not cause this problem!!! Inspect the units "switch-mode-power-supply / inverter board for the 1 and 1 only bad solder joint, resolder it and unit should function properly. Let me know what you find when you do inspection of unit. Document work with digital pic's of every step. Notify brand name of filter capacitors inside unit on SMPS / inverter board. 12fixlouie

Posted on Sep 09, 2010

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Posted on Jan 02, 2017

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I start my PC monitor display after 10 to 15 minutes, I have tested with another monitor its start immediately, what is the reason with my sync Master540n Samsung monitor


you have to open the back cover of your monitor have a visual check on the capacitors at the power board.replace any bulging capacitors on it and resolder the board..good luck!

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Good day, my sumsung syncmaster 540n monitor did not show the display however it starts after 40 to one hour .What is the problem.


Hello, The problem might be that the signal cable at the back was not properly inserted, i mean the cable with the blue color and has 15 pins. Make sure it is properly inserted to your monitor as well as the other end to your Desktop. If this continues,Bring another LCD monitor, a good one and connect it to your system, to see what happens. If it works fine then the former monitor is faulty, if not your system has the problem. Regards

Nov 26, 2010 | Samsung SyncMaster 540N 15" LCD Monitor

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I have SAMSUNG SYNC MASTER 540N MONITOR. THE PROBLEM IS THAT WHEN I TURN ON COMPUTER THE DISPLAY COME AFTER 5-10 MIN. But after some days display is not coming at all and monitor turn on/off button is...


Try it with another PC and also check the VGA cable, if it still does not work, you will have to ope it up and do in-depth troublshooting.
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.

Basic LCD monitor troubleshooting guide:
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting

http://en.wikipedia.org/wiki/Capacitor_plague
Capacitors kit: http://lcdalternatives.auctivacommerce.com/ he can make you a set of caps for you

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