Question about Samsung S22a100n 21.5-Inch Class LED Monitor - Black

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Samsung monitor connected to macbook stuck is power save mode

Samsung monitor is stuck in power save mode. The monitor is attached to a MacBook Pro 2012, and had worked just fine - until last week. The monitor had not been connected to the laptop for a period of time, and when it was reconnected and not it's stuck in power save. Suggestions? Solutions? Thanks for help.

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  • Binques Dec 12, 2012

    that should read "when it was reconnected it stayed stuck in power save."

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  • 1,591 Answers

Make sure the mac is detecting the monitor. If there is an interconnection cable, make sure it's OK. Try hooking the monitor to another computer. If it works on another system, then the problem is with the mac, and not the monitor.
If the monitor does NOT work on another computer, then there's a good chance you have failing electrolytic capacitors either in the power section or the inverter section or both.
Any caps in these sections that look bulged at the top, or bulged/leaking at the bottom (look for discoloration of the circuit board around the base of the capacitor) need to be replaced.
If you repeatedly turn it off and on, eventually it'll probably stay on, but every time you turn it off, the unit will get harder and harder to start up until one day it just won't.
Sometimes you have to do the opposite to start it up and unplug it for some time and then try again.


If you aren't tech savvy, don't worry, read the rest of this solution and watch the videos.


If you are handy with a soldering iron and can identify the power supply and/or inverter / FM section for the backlights, an inexpensive handful of capacitors will likely fix you right up.
Match the capacitance on the capacitors. Go over voltage if you can, and still have them fit.
IE - it's not a bad idea to replace a 10V cap with a 16V or 25V or even a 50V, but don't replace a 680uF cap with a 500uF or a 1000uF (unless you are SURE it's only doing supply output ripple filtering,
and even then, you should go OVER, not under the uF rating).


Most of the caps that go are 10V 1000uF or 3300uF.


I found some great videos of the procedure (for many Samsungs with the same issue) on youtube.


http://www.youtube.com/watch?v=Mm51C_RDIZE
http://www.youtube.com/watch?v=BNHHrgX_6cs&feature=related
http://www.youtube.com/watch?v=8l0AUj8QUkg&NR=1&feature=fvwp
http://www.youtube.com/watch?v=Y7b_nTaZYcU&feature=related


Backlight related video here:
http://www.youtube.com/watch?v=6XoF6QZ1dmw&feature=related


As you can see, this issue spans plasma TVs, as well as large and small LCD TVs and monitors, amplifiers, computer power supplies and motherboards, and other electronic equipment.
The parts are cheap, and skill required is minimal.
A great parts source is Digi-Key, and you can order the parts online at www.digikey.com
They typically cost under a dollar a piece plus a flat shipping rate.
The parts usually arrive one business day later.
If you watch the third video, you will see that even someone with no soldering experience can perform these repairs as demonstrated by the woman in the video.

Posted on Dec 12, 2012

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Posted on Jan 02, 2017

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SOURCE: samsung 740n not working

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 he monitor. If you are good at electronics repair/soldering you can usually fix he problem. Check out a few pictures on my web site www.ccl-la.com/badcaps.htm You can take the back cover off your monitor and look for the bad parts, replace any that look like the pictues 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. 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.

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

Posted on Jun 20, 2009

mdsaeed67
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SOURCE: Samsung 2232bw monitor

this shows the internal circut problem, need to consult a technician

Posted on Nov 07, 2008

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SOURCE: Samsung syncmaster 2253BW blurry/out of focus HELP!

cables wont make a difference, are you sure your display settings are set to 1680 x 1050? i have had problems when it is set to 1600 x 1000 and i had to reinstall the video card drivers.

Posted on Jan 09, 2009

  • 1684 Answers

SOURCE: Samsung SyncMaster 710N Monitor SLEEP MODE

Hello,

The monitor is not going to sleep the power supply board is shutting down. If you can solder you should be able to repair the monitor yourself. The problem is caused by blown capacitors on the power board. Go to our web site at : www.ccl-la.com/badcaps.htm We have pictures of what to look for. Open your monitor and look at the power supply board for any blown capacitors, replace all that you find. The replacement parts can be ordered from several places on the internet or we can supply them for you. The replacement parts will need to be high temp and will be marked 105c. The values you need to get will be marked on the sides of the ones you take out but will be something like 220uf, 470uf, or 1000uf etc. and then a voltage rating. When you install the new ones be sure to insert them with the polarity stripe going the same direction as the old ones come out. If you don't want to do the repair yourself we do offer a repair service for $35 plus return shipping. If you have any questions just let us know

I hope this helps if so please rate our solution.

Buddy
Corporate Computer
www.ccl-la.com
tech@ccl-la.com

Posted on Oct 24, 2009

  • 121 Answers

SOURCE: i have the syncmaster 20wm samsung monitor. I

try pushing the input button or checking the cables

Posted on Dec 02, 2009

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