Question about Samsung SyncMaster 172N 17" LCD Monitor

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Display problem in samsung lcd monitor

I have seven samsung lcd monitor with them same problem of display even when connected to the system unit characters don't display on the screen, but power enters and it glows when connected to system unit . i have tried all the intended steps to get it fixed but i can't get through. what should i do (samsung with trade mark syncmaster 172n). thanks for your support.

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6 Suggested Answers

  • 138 Answers

SOURCE: Samsung LCD Monitor SyncMaster 203B

Hi this is the way how to examine what's wrong with your LCD monitors. After you turned it on and the screen blacked out or stopped working, you have to check that if you can see the image on the screen or not by shining a flashlight into the screen, not directly but find the best angle to the screen and take a look very closely. If you can see the icons or any image, there will be a minor problem. This is because of the lamps inside screen. Some of them were broken and it is very easy to replace. If you cannot see anything on the screen, there'll be some problems with inverter board. If you have soldering tool and want to fix it by yourself, check the caps first. It may cause this problem. Some caps might show leaking or burn spot on the board because of too high temp. If you don't have soldering tool, you better go get a technician to do so. Hope this help!! If anything I can help you with, feel free to let me know.
Thank you,

Posted on Mar 26, 2008

  • 1 Answer


Try to unplug the monitor on your pc then you if you see no signal there is no problem with your monitor maybe the problem is the graphics card or the driver installed

Posted on Jul 24, 2008

  • 2 Answers

SOURCE: No display Samsung SyncMaster 710N 17" LCD Monitor

same problem here...
here is a translated version of a webpage discussing the repair for this error...

solder a 50 ohm resistor on pins 5 & 6 of Novatek NT68F63LG chip...
good if you can DIY, best if a qualified technician do it for you..

Posted on Oct 22, 2008

  • 1684 Answers

SOURCE: No display on SyncMaster 920NW after reboot from power failure


It sounds like you have a monitor with a common problem. After a few years some LCD monitors will blow a power supply. The problem is caused by parts called capacitors overheating in the confined space of the monitor. If you are good at electronics repair/soldering you can usually fix the problem. Check out a few pictures on my web site You can take the back cover off your monitor and look for the bad parts,replace any that look like the pictures and your monitor should work fine. The capacitors do need to be installed with the correct + and - connections, note the stripe on the old one and insert the new one the same way. Look in our monitor repair section for step by step repair guide for this model it should be the same power supply as the 930. If you don't want to try the repair yourself we offer a repair service for $35 plus shipping.

I hope this helps, if so please rate my solution.

Corporate Computer
Over 21 years of computer and printer support/repair

Posted on Jul 22, 2009

  • 36 Answers

SOURCE: Samsung Syncmaster 710n no display and no LED light

I am a technician-informatic. I have repaired about 80 Lcd Samsung monitors with theese problems. I offer the repair manual.
Manual has been done with the experience of the repairing Samsung Lcd monitors. Manual was made by me and shows how to open monitor, how
to solve dark screen problem, how to check and replace capacitors, how to solve the problem non-optimal mode (without reprogramming MCU or
changing the main board) photo are included. 100% functional. The repair process is very simple 30-40min. (does not need a lot of
experience in electronics and expensive instruments) and is not expensive. With this manual you can solve problems by yourself and save

"Not Optimum Mode 1280x1024 60Hz"
- The monitor turns on but turns off by itself, the LED blinks green.
- If you detach from the PC points to "control cable" the picture runs continuously in the vertical direction or presents while line , and
as soon as it is reconnected, the monitor goes off.
- The monitor does not turns on and dont dispaly anything, the LED blinks green-lit, if you detach from pc points to "control cable".
- The monitor turns on, works well some time, but after a window apiers "Not optimum mode. Mode recommended 1280X1024 60Hz"
- The monitor turns on, works well only with low resolution 800x600, when try to change a window that reads "Not optimum mode. Mode
recommended 1280X1024 60Hz"

the manual you can find on ebay (my ebay name is asnerejas123):
Samsung monitor repair manual guide 710n,913v,510n more
Riparazione - repair Lcd Samsung monitor 710n,913v,510n
Reparaturhandbuch für Samsung 710n,913v,510n und andere

Posted on Oct 27, 2009

  • 748 Answers

SOURCE: Syncmaster 172n will not power up. Is there a fuse

Sorry, no fuses. No user serviceable parts. Take it to a reputable repair person or check my website

Posted on Mar 02, 2010

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1 Answer

No display


I would advice you check all the connection on the monitor to ensure all the cables are properly attached to the monitor and the central processing unit, if still no display, you can change the cable to try another cable to see if it will give difference, if nothing happens, you might need to diagnose the monitor to see if it powers on, if it does and no display, you will need to replace the picture board on the monitor to solve the problem.

Take care,

Jul 09, 2010 | Samsung SyncMaster 510N 15" LCD Monitor

1 Answer

My monitor keeps turning on and off automatically,...

Guest, Unit not turning "off"!!! Power supply (internal) going into "shutdown" mode.??? Have you been to this site to do some reading!!! It still a good read even after 5 years!!! Still up to this year 2010. Go here Remember this! Your monitor isn't any different than any other brand of "cold-cathode-fluorescent-lamp-back-lit lcd monitor in it's basic design and operation! There are seven pages of stuff at the above leslie wong blog. Hope this was of some help. Your monitor may also need new CCFL tubes due to age of unit

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Want to use samsung 2233SW LCD monitor as TV

Yes you can, if you has PC desktop, plug your lcd to it. change LCD resolution from your PC.
-- Right Click on desktop
-- Click properties >> click settings tab
-- You will see Screen Resolution, change to the lowest (800x600)
-- Nnplug VGA cable from PC
-- Now plug the cable tou your TV Tuner.

Feb 08, 2010 | Samsung SyncMaster 2233SW Monitor

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I have a Samsung 712n monitor that passes a self

jcriley, If your SAMSUNG is not to old, try to get them to replace it or do a cash+old unit for a same model refurbished unit! You may have a monitor that has a "switch-mode-power-supply" that is in partial or full shutdown mode. When very strange and weird things start to occur with a LCD fluorescent lamp backlit monitor or for that matter LCD tv/monitor I would always suspect the culprit to be the SMPS!!! Get back to me lmistyrel@ aim or 12fixlouie on fixya after you perform SMPS evaluation test using the flashlight trick to see if the screen data is still being displayed even though the screen appears to be blank. It may only be BLACK, but not blank!! Read some of my other posts here on fixya and also visit a website FYI !! It is run by another tech on fixya nickname "buddymc". If you do a second post, give us a little history of unit in question such as age and screen appearance just prior to BLACK SCREENof DEATH setting in! 12fixlouie

Nov 29, 2009 | Samsung SyncMaster 712N 17" Flat Panel LCD...

2 Answers

Samsung 540n TFT display comes for about 15 sec. with low breightness and then no display power remins on. This happens even when VGA cable is disconnected.

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 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.

Oct 26, 2009 | Samsung SyncMaster 540N 15" LCD Monitor

2 Answers

Hi, I am having Samsung LCD sync master 943nwx, after power on momentarily display is coming and going,

it may simply be a lose connection with the monitor cord. or the monitor cord may to be replaced.

Jul 12, 2009 | Samsung 15.3" LCD Monitor

1 Answer

No display in monitor

Was the monitor tested, that it is working before it was delivered to you? Because it was still under warranty. If your system unit open ( a beep sound hear ) wihen your new monitor was attached only that their is no display but the monitor has a power, means it needs a video card with a driver to be installed. If you have another monitor try it to your computer if the problem still the same.
That's all

Nov 19, 2008 | Samsung 510N 15" Flat Panel LCD Monitor

2 Answers

"No signal detected" when LCD connected with DVI-D Cable

Thank you for providing your configuration details.
You have failed to specify wheather or not your LCD Display is under Warrenty.

Perhaps these simple trouble shooting procedures will get the job done.

1. use the DVI to VGA adaptor that came with your card

Plug in a regular CRT monitor to the Primary Display Output Port using the DVI to VGA adaptor
( either port can be designated as the primary by you )
I like to use the Port nearest to the motherboard as the Primary

2. plug in the your LCD monitor on Secondary Display port using your DVI cable

At this point you should be able to see your desktop on the Primary CRT Display

3. Go to the display properties and use the Nvidia Dual Display Setup Wizard

set both desktops to CLONED at a resolution of 1024x768 and set the refresh to 60Hz
which is default for most LCD displays , some have higher refresh rates , consult your user manuel

If the display resolution and refresh are set incorrectly for your CRT or LCD you will see
Signal Out of Range ( if the display has the ability to display that error message )

At this stage both displays should be showing a Windows Desktop

If you now see your desktop on both displays , you can now put the LCD on the Primary Port

No Signal Detected ( this means the display device is not receiving a signal )

If your LCD display is still displaying the error message
"No Signal Detected" after performing the trouble shooting proceedures
You may need to read the user manuel about how to enable DVI signal input.

If you are certan you have done everything correctly but still see only "No Signal Detected"

Your LCD Display may need replacement

Loch Hime :-)

Sep 14, 2008 | BenQ FP71E 17" LCD Monitor

1 Answer

Turns off when a signel is connected to it

Try to connect LCD to another computer.
If it is ok something then went wrong with your PC.
Either your display card defect or the CPU need to reinstall the OS (operating system).

Nov 19, 2007 | Samsung SyncMaster 913V 19" Flat Panel LCD...

1 Answer

Funny monitor problem

If I were you I would invest in a new video display card. Sounds your card is intermittant, because the chances of a tube type display and a TFT display having the same problem is slim to none. LOL Good Luck Please dont forget to rate this thread

Oct 20, 2006 | Samsung SyncMaster 540N 15" LCD Monitor

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