Samsung SyncMaster 920N 19" LCD Monitor Logo
Posted on Sep 10, 2011
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The screen of the monitor is blank. The green power light though is flashing. I can hear a faint ticking sound from within the monitor. It is as if the backlight has just failed. The monitor have been working OK for 5 years and then just suddenly stopped working

1 Answer

Buddy Mcsparrin

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  • Samsung Master 1,684 Answers
  • Posted on Jan 18, 2012
Buddy Mcsparrin
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Joined: Jul 20, 2008
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The flashing power button is an indication that the power supply has failed. There are parts called capacitors that filter the output power and when they short out the power supply can't start up correctly os it tried over and over, this make the power light flash each time it tries to start up. The monitor is easy to repair if you can do a little soldering. Here is a link to a repair guide that will show you how to dis-assemble the unit and what to look for and replace to get it back going again. Te guide also has videos showing the steps.

http://www.ccl-la.com/blog/index.php/repairing-the-samsung-920n-920nw-monitors/

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

BuddyMc

5 Related Answers

viziks

Samir Shah

  • 220 Answers
  • Posted on Mar 24, 2008

SOURCE: Backlight is acting like a bad flour. tube .. everthing else OK

Normaly the backlights have a life of around 40k hours of working.
If your monitor is 3-4 years ,the backlight tube/s could be defective.Your description seems to indicate tube aging.

It's possible to replace the tube but needs a good amount of technical skill.
Do write if you need more help,Please indicate make exact model no etc.
Samir

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Anonymous

  • 2600 Answers
  • Posted on Oct 12, 2009

SOURCE: Screen goes black but still can see the desktop??

It sounds like you are losing the backlight....the backlight is what lights up the panel. The inverter takes the signal from the motherboard and sends it to the backlight. I would change both out. The inverter is usually a seperate component....the backlight is built into the frame of the LCD...it can be changed, and there is a guide for that but most LCDs come with a backlight built into them. Below is a guide for backlight replacement.....

http://www.laptoprepair101.com/laptop/2007/12/09/replace-laptop-backlight-ccfl-lamp/

Anonymous

  • 59 Answers
  • Posted on Jan 13, 2010

SOURCE: Monitor is blank. Green power light is on steady.

Self test failed means Monitor is bad.

Check input settings, whether DVI mode is selected.

Dell Monitor has 3 year warranty by default, Contact Dell Techncial support

budmrtn

Bud Martin

  • 11361 Answers
  • Posted on May 17, 2010

SOURCE: My Inspiron monitor suddenly failed.Green light is

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 DELL 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

http://www.badcaps.net

budmrtn

Bud Martin

  • 11361 Answers
  • Posted on Sep 25, 2010

SOURCE: I have an Acer lcd monitor AL1715sm and sudenly it

Here are the service manuals: http://elektrotanya.com/?q=showresult&megnev=ACER&megnev2=AL1715&kategoria=monitor&kat2=all

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 ACER 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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Hi.
Are you able to see a slight image on it at dusk and maybe with the help of a flashlight. since your blue light stays on the video board, may be okay.
If you can hear audio then your problem should be in the inverter board.
It could have bad capacitors or possibly a burned out transistor.
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Even though you do have sound the power board could still be the culprit.
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Should the screen happen to light up all white, then your inverter is okay.
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