Question about Samsung SyncMaster 740N 17" LCD Monitor

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Monitor turns off suddenly

I have purchased Samsung LCD monitor. I also have APC ups 500VA. When the power goes off CPU keeps running but the monitor goes off. I'm sorry if this is not a question related to you people.

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I HAVE ONE SAME PROBLEM THE CHIP BOARD IS WORN OUT I RANG SAMSUNG AND IF YOU HAVE WARRANTY THEY WILL REPLACE IT IF NOT I GUESS YOUR STUCK WITH IT LIKE ME AND MINE WAS BRAND NEW 7 DAYS OLD BUT I DIDN'T GET A WARRANTY WITH MINE

Posted on Jul 02, 2008

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APC BACK-UPS ES 500VA fails to provide back up during power failure


Get APC Powerchute Personal Edition for free and run it. If it says your battery isnt charged, check its voltage disconnected. Charge it with a car battery charger and see if its still a good battery. If not , replace it. If the battery is good, then check the charging voltage. Should be about 14 volts. if not, check the small transformer on the main board. Should be 120 in and 17 to 18 out. 4 diodes in a bridge for charge. The input to the transf has small fuse into it alone.

Jan 04, 2013 | APC BE500U ES 500 USB BACK-UPS 500VA/300W...

1 Answer

Why does my asus monitor always read "no signal".


nah that happens with me sometimes..
have you connect the cable properly?
if that still can't make it works, first turn on your PC and monitor..
then plug off the cable that power them, so that your computer and monitor will suddenly off..
plug it on again, then your monitor will work again..
that works on mine cause my CPU is too old and had a power problem..

May 07, 2011 | ASUS LCD Monitor

1 Answer

When i turn on my lcd samsung syncmaster 540n it displayed a lot of colored vertical and horizontal lines.no video when i attached my cpu but it turns on when i powered my cpu


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.

Mar 08, 2011 | Samsung SyncMaster 540N 15" LCD Monitor

1 Answer

Samsung 22inch lcd monitor goes blank after 1min idle system.


Hello sir, I have samsung 22in lcd monitor and nvidea fx5500 card. since last more than 6 months, my monitor goes blank If system remains idle (means I don't move mouse and don't touch keyboard) for 1 minute. After monitor goes blank I have to move mouse to brink it back to on. The power led keep on during this problem. I tried everything including power options in windows but could not fix it. Is it bios setting to be checked or could it be windows bug? Please help

Mar 23, 2010 | Acer X193W LCD Monitor

1 Answer

My APC BE500U keeps resetting


It certainly indictes a problem with the APC unit a replacement bettry may or may not solve the problem. Do you really need one as you have an anti surge protector?

Sep 18, 2009 | APC 500VA BE500U Back-UPS ES...

1 Answer

My 500-A Ups is making Buzzing sound.


APC 500VA ups meant for 1 Desktop and one montiro it will have battery backup for 10 to 15 minutes for the above.

Normally, You should make the raw power connected to UPS should be always ON.

The power cables of CPU and Monitor is connected with UPS. When not in use, please press the Button available on the UPS.

The UPS Life is normally 2 to 3 Years only. Now you are getting the sound and Red Light will always blink and not allow to use the system.

Better replace the 12 Vols battery to get some more life for the UPS.

And check for any loose connection of the power cables connected with Raw Power and UPS System.

Jul 19, 2009 | APC BE500U ES 500 USB BACK-UPS 500VA/300W...

1 Answer

My monitor goes blank repeatedly


1. First u can check any dry points in power supply board and controlling circuit.
2. check all connectors (connected properly)
3.To replace front pannle Micro switches.

Oct 04, 2008 | Samsung SyncMaster 740N 17" LCD Monitor

1 Answer

Samsung SyncMaster 17" LCD Blacks out


If you have a second monitor, you could use your computer until the monitor goes black... then plug in a replacement monitor. My guess is that one will display black too...

My gut feeling is that your VGA card is on the fritz... I'm not convinced it's your monitor. Do you have a replacement VGA card you can try? I'll bet that'll take care of the problem.

Apr 22, 2008 | Samsung SyncMaster 17" LCD Monitor

1 Answer

Powering up problem on UPS


about your first problem it is not normal.you should check it out with a qualified professional.
after repairing it will work nicely

Apr 02, 2008 | SAMTRON 55V 15" CRT Monitor

2 Answers

Samsung 940mw intermittent power...


I don't have a solution but would like to compare information as i just started looking into this problem myself. 1. I bought my Samsung 940mw in March, 2006 but didn't start having problems with it until around April, 2007 2. I'll be using it as my pc monitor when the screen goes black and the power light stays solid green. The monitor doesn't respond to the remote control. Nor can i manually turn it off via power button BUT i can restore it by a) turning power off at the UPS outlet it's plugged into b) removing the monitor cable from PC port c) restoring power and waiting for the Samsung diagnostic message about no monitor detected then d) plugging the cable back in. My monitor image reappears. 3. fyi I only use the analog monitor input. Samsung also released a new driver which hasn't made a difference. Within just last couple months the monitor will sometimes just go black a coupla seconds and come back on without any intervention

Jul 31, 2007 | Samsung SyncMaster 940MW 19" LCD Monitor

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