Question about Samsung SyncMaster 712N 17" Flat Panel LCD Monitor

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Monitor i have no menu on my monitor, it is one with a blank blue screen, nothing coming up on display.

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SOURCE: all of a sudden my monitor does not come on. The

There is problem in cablee

Posted on Oct 16, 2010

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SOURCE: When I turn on my

If you are going to DIY and already try the monitor with another PC, 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:
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 and TV troubleshooting guide:
Failed TV and Monitors pictures:

Learn about bad caps:

Capacitors kit: he can make you a set of caps for you.

Or just make sure to use caps with low ESR, 105c, high ripple current, long life rating such as PANASONIC FM or FC series.

Posted on Mar 22, 2011

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This is most likely the power inverter board in the monitor - this is common in many monitors. If it started taking longer and longer to display an image, and the power light is blinking on-and-off, that's the problem. You can confirm that it's the monitor and not your computer or the cable by plugging in another monitor if you have one to try.

If it's under warranty, send it back, if not, there are inverter boards for many common models of LCD monitors that are replaceable. The board can run anywhere from $50 on up. Depending on how old it is, you may find it better to just replace it with a gently used one from ebay.

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It appears that the display resolution set in your display properties is out of the range that the LCD can display.

Try this.

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I am not familiar with your particular model, but I do know what the problem is.
The inverter that runs the lights behind the screen is faulty and needs to be repaired. The lights shine from the top and bottom and reflect outwards through the panel so you can see what is on the screen. If you start the computer up, then shine a bright light into the panel you will see an image on the screen, but very feintly.
This can be cheap, it can also be expensive depending on where you go to get it repaired. Call aorund to a few TV shops in your area to get a rough idea on prices.

Hope that helps =)

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1 Answer

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Hi, Sounds either a backlight problem (inverter or tube light) or the display interface. Since you have confirmed that it is your LCD monitor, your best bet perhaps is to seek the services of a qualified professional. Should you venture in doing it yourself (DIY), You need to open up the casing. A step by step procedure is better illustrated here . The working principles of notebook/laptop displays are nearly identical to your LCD. Hope this be of some help. Post back how things turned up or should you need further information. Good luck and kind regards.

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Like most of these LCD monitors it is more than likely a PSU problem to do with the Electrolytic Capacitors, These in all probability will be faulty.. there are usually about 4 - 6 from 1000uF to 100uF replace ALL with same or better.

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1 Answer

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Can you see anything at on but dimly? If so thats is the backlight tube If you cannot see anything then it is a major fault eitherway a repair shop job I should think

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1 Answer

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well your screens broken mate the only thing you can do is get a new one

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