Question about Samsung SyncMaster 540N 15" LCD Monitor

1 Answer

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 blinking with blue light. WHAT IS THE PROBLEM? KINDLY HELP ME

Posted by on


1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 20 achievements.


    An expert that got 10 achievements.


    An expert that got 5 achievements.

  • Master
  • 11,361 Answers

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:
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:
Capacitors kit: he can make you a set of caps for you

Posted on Nov 03, 2010


3 Suggested Answers

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

  • 787 Answers


It comes on only at the login page, right?

Posted on Oct 07, 2010

  • 11361 Answers


It has dying power supply due to bad caps with leaking/bulging tops, that will be the first place to look.
Service manuals:

Failed TV and Monitors:

Posted on Oct 10, 2010

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

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!

Jun 11, 2011 | Samsung SyncMaster 540N 15" LCD Monitor

1 Answer

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

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

Sep 05, 2010 | Samsung SyncMaster 540N 15" LCD Monitor

1 Answer

Change the display resolution from 1024x768 to1024X1280

go to control panel > dosplay settings > click on the settings tab > click on the advanced button > c.ick on Monitor and tick the box that states "Hide Modes that this monitor cannot display > click the adapter tab > click on button "List all modes" This will list every resolution your monitor is capable of displaying.

Sep 17, 2009 | Samsung SyncMaster 540N 15" LCD Monitor

1 Answer

Problem with samsung syncmaster 540N 15"

To replace all Electrolatic capacitors in Power supply& drie Currected
check all connectors are properly connected r not

Sep 13, 2008 | Samsung SyncMaster 540N 15" LCD Monitor

1 Answer

Startup trouble

this is cause by deffective power supply.

Jun 26, 2008 | Samsung SyncMaster 540N 15" LCD Monitor

1 Answer

Samsung lcd monitor 540n display problem

sir,,,the power supply has been damage kindly checkit right away,,thnkss and hope to help you??

Jan 29, 2008 | Samsung SyncMaster 540N 15" LCD Monitor

Not finding what you are looking for?
Samsung SyncMaster 540N 15" LCD Monitor Logo

85 people viewed this question

Ask a Question

Usually answered in minutes!

Top Samsung Computers & Internet Experts

Les Dickinson
Les Dickinson

Level 3 Expert

18429 Answers


Level 3 Expert

782 Answers

ismael castillo

Level 2 Expert

318 Answers

Are you a Samsung Computer and Internet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides