Samsung SyncMaster 740N 17" LCD Monitor Logo
Rabeesh Balakrishnan Posted on Oct 23, 2012
Answered by a Fixya Expert

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My Samsung Syncmaster 740n monitor blackout. the power led blinks. some times it regain display. what may be the possible causes.?

1 Answer

francoise cleofas

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  • Samsung Master 2,432 Answers
  • Posted on Oct 24, 2012
francoise cleofas
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Have you been check for a bulging capacitors at the power supply board.

5 Related Answers

Anonymous

  • 406 Answers
  • Posted on Dec 30, 2009

SOURCE: How do you open up Samsung LCD 740N monitor?

This monitor contains a latches to open. Its recommended that you use suitable tools and service manual.

If the unit is in warranty its recommended that unit to be serviced by service Engineer.

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Anonymous

  • 36 Answers
  • Posted on Apr 14, 2009

SOURCE: samsung syncmaster 740N 17 inch no display

manual and drivers

http://www.samsung.com/it/function/search/resultList.do?searchWord=913v&ct=0&sort=0

Anonymous

  • 5 Answers
  • Posted on Aug 28, 2008

SOURCE: samsung syncmaster 740n monitor problem

Add a 50 ohm between pin 5 and 6 of the NT68F63LG IC.
Go to this link to learn the details. http://translate.google.com/translate?hl=en&sl=es&u=http://www.dtforum.net/index.php%3Ftopic%3D55304.msg1010695085%3Btopicseen&sa=X&oi=translate&resnum=3&ct=result&prev=/search%3Fq%3DNT68F63LG%2B50%2Bohm%26hl%3Den%26rlz%3D1T4SUNA_enUS219US220

I tried this fix on my monitor and it works now.

A

Anonymous

  • Posted on Aug 07, 2008

SOURCE: samsung monitor problem

update the driver of your video card or download the Everest Ultimate Edition

budmrtn

Bud Martin

  • 11361 Answers
  • Posted on Aug 23, 2010

SOURCE: After changing old model monitor for Samsung

First, try it on another PC first.
Second, the video resolution of your PC should be set to 1280 x 1024 @60Hertz.
Unless it has problem inside, then you will need to open it up.
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 monitors to get some ideas what to look for: http://s807.photobucket.com/home/budm/allalbums
Post back what you see inside so we can guide you further and it will help out other people in the future also.
http://en.wikipedia.org/wiki/Capacitor_plague
Capacitors kit: http://lcdalternatives.auctivacommerce.com/ he can make you a set of caps for you.

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Click the link below to download the Schematic diagrams:
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Most common failures in the LCD monitors are bad capacitors (bulging top/seal or leaking) in the power supply, 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: http://s807.photobucket.com/home/budm/allalbums
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I would inspect all the caps, if you find even one bulging top/leak you should replace them as a set.
See failed SAMSUNG here, use good caps, such as PANASONIC FM or FC series from DIGIKEY.
http://s807.photobucket.com/home/budm/allalbums
http://en.wikipedia.org/wiki/Capacitor_plague
http://www.badcaps.net

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But i found this cool solution at
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