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Daewoo computer monitor model # F257-A not working

I have a Daewoo computer monitor model # F257-A. When I turn the computer on, nothing comes up on the screen. The green power light is blinking on monitor but no picture/graphics will display. I was able to resolve this a few times by rebooting but now that does not work. Other monitors work fine with the PC.

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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  • 51 Answers

SOURCE: Blinking green light with no display

Have you tried connecting this monitor to another computer?

Have you tried resetting the BIOS? That should reset any problem the video driver for the monitor maybe facing.  

Posted on Oct 17, 2007

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  • 165 Answers

SOURCE: When it's turned on, the light on my monitor blinks but the screen doesn't display anything. Why ....

Refresh rate may be set too high for LCD
hook up crt monitor
1. Open control panel-display
Click on settings tab and set to a lower screen res such as 800x600
Try lcd

2. Open control panel-display
Click on settings tab
click advanced button
click on monitor tab
set screen refresh rate to 60 hz
Try lcd

Posted on May 20, 2008

  • 2 Answers

SOURCE: Monitor is Blank and Power Light Blinks

you try to check and replace the transistor 5707, two of them are shorted

Posted on Oct 13, 2008

sparkyuiop
  • 91 Answers

SOURCE: 1800FP Dell Monitor Light continuously blinks no picture

I have made a solution to this and it can be found on my website here:
http://www.dorchestercomputerrepairs.com/1800.html
Hope this helps.
sparkyuiop

Posted on Oct 20, 2008

frcs68
  • 1605 Answers

SOURCE: My monitor works fine for 0.5 sec every time I turn on my PC and then nothing

sound like the monitor is gone.
if it is still in Warranty, you can call Samsung.
if it is out of warranty, take it to any computer repair shop. (cost may be prohibitive.)
the last option is get a mew one.

Posted on Nov 10, 2008

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http://www.youtube.com/watch?v=9Q6_TgNJvQw


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Hi, Youo have zeroed in on the problem area. It looks like a power supply problem. More often than not, there is a fuse inside. If you would venture to open the unit up, do a visual check on the fuse. If it is busted: 1. Clean - no burnt/scorching/black marks inside the glass tube, then you can simply replace and hopefully the unit will be operational; 2. Dark smudges - or small burnt metal pellets inside the glass tube, then it is possible that you have other defective components that caused the fuse to blow. Normal components that are known to go bad are the big capacitor and or the power transistor regulator. Most current designs uses a switch mode power supply where your mains AC voltage is converted to DC that powers a circuit that eventually produces a lower DC voltage say 12VDC for use of the monitor. Should you venture a DIY (do-it-yourself), pls remember safety precautions when working with powered electronics. Hope this be of some help/idea. Post back how things are or should you need further information. Good luck and kind regards.

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