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Samsung 931bf Monitor will not come on after power failure

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A surge may have fried it if you didn't have it on a UPS (Uninterruptible Power Supply).
Here's some tricks I would try. Something here, might help...
1. Verify the monitor's power cord is plugged firmly into the wall outlet and the back of the monitor.
2. Verify the monitor cable is firmly connected to the computer and the monitor.
3. Verify that you have turned the monitor power switch on.
4. If the power light on the monitor is not on, test the wall outlet (plug in a light or something you know works).
5. If the power light on the monitor is not on, try a different power cord.
6. If the power light is on and yellow or orange or flashing, but nothing displays, or the display is incorrect, borrow a monitor from a friend. If that works, your monitor probably needs replaced.
7. Also, you could try your monitor on a friend's computer. If it doesn't work, your monitor probably needs replaced. If it works properly on your friends computer, the problem may be with your computers video output port, motherboard video chip (or video card, if you have one), or drivers.
Good luck.

Posted on Aug 07, 2014

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5 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE:

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Good luck!

Posted on Jan 02, 2017

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  • 101 Answers

SOURCE: We had a power failure and after power was

I think it might be the Caps in the power supply. If you can open the unit up, find the power supply. See if there any caps are bulging on the top. If they are they need to be replaced. There maybe as many as 4 to 6 caps you need to replace, If the caps are 16v replace with 25v, If they are 25v replace with 35v. This is because some of these caps in power supplies are under rated. Always use the same mfd's that is on the old cap.Make sure you do not put them in backwards. They do have a + and a - . This is all being said assuming you know a little about electronics and good with a soldering iron. Hopes this is helpful.

Posted on Nov 04, 2009

dhecom
  • 233 Answers

SOURCE: I can't get my SAmsung SyncMaster 931BF to come of

I already post solution for this problem, click here to see the solution.

Posted on Dec 21, 2009

L0rdL0ki
  • 45 Answers

SOURCE: Hooked Samsung SyncMaster 931BF monitor to laptop

This looks like a driver/resolution problem. Which laptop are you using? New laptops shouldn't give you any hassles, but older models don't always have the graphics cards to support all monitor sizes.

Make sure your monitor driver is installed on the laptop and that you have the latest graphics drivers installed for your laptop.

You can download the screen driver here: http://driverzone.com/device.php?id=55741

Then check that the resolution for your monitor is set correctly on your laptop under display properties. The native resolution for the screen is 1280x1024.

Hope this helps,

-LL

Posted on Feb 23, 2010

budmrtn
  • 11361 Answers

SOURCE: I am continually having an issue w/ my samsung

http://www.fixya.com/support/r4616564-samsung_lcd_monitors_lock_unlock

You may want to watch out for the caps to go bad alsoi f it start acting strange due to poor DC.
http://s807.photobucket.com/home/budm/allalbums
http://en.wikipedia.org/wiki/Capacitor_plague

Posted on Jun 17, 2010

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1 Answer

I have to turn it on and off several times until i can get a picture


More likely that it has dying power supply due to bad DC filter caps, that will be the first thing to look for.

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 SAMSUNG monitors to get some ideas what to look for: http://s807.photobucket.com/albums/yy352/budm/
Post back what you see inside so we can guide you further and it will help out other people in the future also.

Basic LCD monitor troubleshooting guide:
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide

http://en.wikipedia.org/wiki/Capacitor_plague

Learn about bad caps: Capacitors kit: http://lcdalternatives.auctivacommerce.com/ he can make you a set of caps for you.

Nov 23, 2010 | Samsung SyncMaster 931BF LCD Monitor

1 Answer

My lcd samsung 931 bf displays the desk for about 2s then it vomes black


Look for bad caps first, then the inverter circuits.
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 SAMSUNG 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.
http://www.badcaps.net

Aug 21, 2010 | Samsung 931BF 17" LCD Monitor

1 Answer

How to open case/shell of Samsung SynMaster 931BF???


You remove all the screws, stand, then useing the thin flat blade screw driver to crack open the case, starting at the bottom edge and work your way around, it is hard to tell you in words. Try Youtube also.

http://s807.photobucket.com/home/budm/allalbums

http://en.wikipedia.org/wiki/Capacitor_plague
http://www.badcaps.net
Capacitors kit: http://lcdalternatives.auctivacommerce.com/

Jul 15, 2010 | Samsung SyncMaster 931BF LCD Monitor

1 Answer

Unplugged monitor. left home for a couple of days. Plugged monitor in and got no picture. Turned CPU on and off and the CPU does recognize it, but still no picture. the monitor power button just flashes.


Try it on another PC, if it still does not work and you want to DIY repair, please read below and look at pictures.

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
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

May 08, 2010 | Samsung 931BF 17" LCD Monitor

1 Answer

I can't get my Samsung SyncMaster 931BF to come of of sleep mode?


I already post solution for this problem, click here to see the solution.

Dec 21, 2009 | Samsung SyncMaster 931BF LCD Monitor

2 Answers

On-Screen Menu


You have to check keyboard and the cable which interconnect main board and keyboard it could be damaged.

Oct 25, 2007 | Samsung 931BF 17" LCD Monitor

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