Samsung SyncMaster 540N 15" LCD Monitor - Answered Questions & Fixed issues

Try using a different HDMI cable. If issue persists, try using the DVI port and a DVI cable. If not then try removing your video card and just use the on-board video option of your PC. If issue persists, try a different monitor.

Hi, I strongly suggest you get the customer services out again as quick as you can this has faulty screen. Don't let them fob you off tell them it's still under warranty since their engineer came out to fix it this sounds like a faulty printed circuit inside the monitor. Please leave me feed back: Malcolm Campbell, Thanks.

If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/ Unlock procedure and to override the password lock to many popular brand TVs & other devices are given.

May I suggest that for around one hundred dollars you can get a samsung 22.5 in screen. Terry

gptajipcf, When very strange things start to happen with LCD DISPLAYS the first place a Technician will investigate would be the monitors "switch-mode-power-supply" and it's "inverter" supply that supplies 800-1200vac to light up the "cold-cathode-fluorescent-lamps" that provide "WHITE LIGHT" for the LCD panel. I recomend a visit to YOUTUBE so you can find and view some video clips of "LCD monitor disassembly" and "LCD monitor repair" and find out if you think you would be able to repair your monitor or have someone else do the work for you. You didn't tell us if the unit is still covered by warranty??? Check with Samsung about doing a CASH+OLD for a Refurbished same model unit. Also visit ccl-la.com/badcaps.htm for more info on what may cause your monitor to do stupid stuff as you described above. I hope this info was of some help to you. If so please rate this response on fixya. 12fixlouie Bye for now.

http://tinyurl.com/p5hydr4 Terry

Try another monitor if it works the way it should then it's the other monitor. If the result is the same reboot the computer in safe mode by tapping the f-8 key when you see fhe first splash screen choose safe mode. If it still messed up then you have a graphics problem. Take the computer in and have it tested. Terry

This messsage is usually displayed when the Monitor is unable to detect any input signal this can be due to the faulty cables (VGA/HDMI). I suggest you to try to connect a different cable and check if the monitor works. If not then update your video drivers.

The SyncMaster monitor are well known for bad capacitors in the power supply board, sometimes a bulge at the top is present making it easier to spot.

If the power is present then you need to follow the schematic to check if the +B to the circuits are in order. check the inverter section for supply as the back light could have failed.Also you need to check on the main board for leaked capacitor which can be anm indicator. The reason for loss of picture can be several as if there is no visible failures the board has to analysed with the schematic.

dude its a manufacturing default contact service center and they will fix it or replacement will be given and dont try to fix your self as this could terminate your warranty or if your warranty is expired than upgrade with a new Led monitor as it is better than LCD bye t.c

output capacitors was prob, or panel was prob

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!

It more likely to have bad caps with domed tops in the power supply section, very common problem in all LCD TV and monitors.
See examples here: http://s807.photobucket.com/albums/yy352/budm/SAMSUNG/
If you are going to DIY and already try the monitor with another PC, 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 monitors to get some ideas what to look for: http://s807.photobucket.com/albums/yy352/budm/ 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 and TV troubleshooting guide: http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide http://www.fixya.com/support/r7406380-tv_training_manuals Failed TV and Monitors pictures: http://s807.photobucket.com/albums/yy352/budm/

Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague

Capacitors kit: http://lcdalternatives.auctivacommerce.com/ he can make you a set of caps for you. Or www.digikey.com just make sure to use caps with low ESR, 105c, high ripple current, long life rating such as PANASONIC FM or FC series.

Hi Anthon,

This is an indication of out-of-regulation in the power supply section. The very common caused of this fault is the dried/leaky electrolytic capacitor in that section. It will drop the supply from normal voltage and will disable the unit. Sometimes it has a bulged/dome at the top but not all, it is better that you have a capacitor checker/tester to determine its condition. Also, bad solder joints can produce the same symptom, it is hard to spot, you should use table lamp/portable lamp for finding the cold solder. Another reason of the symptoms is the open fuse/fusible resistor in series with the output of regulator IC/transistor, shorted/openRegulator IC/transistor, shorted zener diode(all are in the power supply section) and the microcontroller. Best that you check the output voltage of each regulator to determine where the fault came from and narrow the job.

If you don't have necessary tools and test instruments, and can't do the job yourself, I would advice you to look for a professional to troubleshoot the problem. Don't attempt to work in the power supply if you don't know the safety precaution of handling it, there some stored electricity enough to hurt you with a little mistake only.

Also check if your unit is under warranty /extended warranty, avail it because the manufacturer of your unit will fix it for free. Don't open the back panel, this will void the warranty.

Hope I helped you.

Have a nice day!

Thanks for using Fixya.

Download it from the link given below!


http://download.cnet.com/SyncMaster-540N-SyncMaster-Magic-CX512N-CX502N/3000-2108_4-147969.html

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www.lcdparts.net http://www.yallstore.com http://www.shope2.com/ http://www.invertercentral.com/qrySearch.asp?Adword=1500&search=1500&Campaign=Google-Models-NA&gclid=CO3lg7HJlKMCFQcbewodZB2qoQ http://www.nylaptopparts.com/ http://www.ccflwarehouse.com/

boot up in safe mode (press f8 while booting) If your monitor works now, you need to go the the samsung site and download the driver for you monitor. I assume windows 7, since that is where most of the monitor problem occur.

the problem of your monitor is in the inverter board of that monitor..there are some capacitor's on the inverter board is damaged..change the capacitor and your problem will be solved...

Samsung LCD have a Maximum of 3 to 5 color plan predesigned. To use them you need to click the required buttons in the bottom of the LCD. Select the one that fit best to you.
If you think nothing happening use manual.
Or try changing the video setting for your movie player.