Question about Samsung SyncMaster 913N 19" LCD Monitor

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LCD Screen Blank

CPU on but lcd power on off just blue light blinking...blinking. And also no light on the keyboard. Any idea what is wrong? Thanks.

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First, try this mnoitor with other PC, if it still does not work then you will have to open it up and inspect the insideand inspect the power supply section first.
Most common failures in the LCD monitors are bad capacitors (bulging top/seal or leaking) in the power supply, blown fuses, 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

Posted on May 30, 2010

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Hi,
Try to change the capacitors first. Normally lost of lcd tv have problems with the capacitors and which lead to powers problems. May you will not find visually that the capacitor is fault. So go for changing the capacitor also check the following video. Which will help you understand how to check the power supply broad. Also take care while working with the power board there is a risk or electric shock Also one of the capacitor in the power supply holds charge even when you have remove the power supply.
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www.electro-medical.blogspot.com

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First of all you need to check you keyboard light it may be the issue with your CPU. So check you keyboard light and press Num lock key if it's getting on/off when you are pressing the key. If it's working or not. It must be blink when you press the num key. If it's constent or not getting on then check with you CPU first ....may be there is some issue with you CPU. Second you can remove the cable from CPU which is connecting to monitor to check ....when you remove it from cpu it will give you some message on the monitor screen that check you vga cable etc. If it give's such message then it will be for sure then you need to your CPU fixed up.
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More likely to be problem in the power supply.
Most common failure 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 monitors to get some ideas what goes wrong: 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://www.badcaps.net
http://en.wikipedia.org/wiki/Capacitor_plague

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Well, seems like the CPU is the source of the problems, not the LCD Monitor.

The simple way to check it is by remove the cable from CPU unit, see for any sign such us color pattern moving or any sign.

the other way is, try using other CPU or Laptop, then connect it to the LCD Monitor.If it works, then you need to repair your CPU.

Hope it's working

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