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Power went out and then my monitor just didn't come on when I turned the computer back on, the blue light on it just flashes like its not getting a signal. I've tried it on another computer and it does the same thing, I've also tried with a different cable plugged in. The monitor is a Samsung syncmaster 931b and is only 13 months old this is the second one that has done this in the last 2 years.

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It will be better if you send it for repair

Posted on Jun 11, 2008

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try pulling out the power plug to the monitor and then plug back in and turn on monitor.
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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).
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6. If the power light is on and yellow or flashing, but nothing displays, or the display is incorrect, borrow a monitor from a friend. If that works, your monitor probably needs replaced.
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When I came home today the blue monitor light was on, but there was no picture. When I moved the mouse to get the monitor up, the light went out. I've tried unplugging it and plugging it into...


Here is a link to a repair guide for the LG L196WTQ. It sounds like you have a power supply failure and the guide shows how to open the unit, check the power board and then what to replace if you do find bad capacitors.

http://www.ccl-la.com/blog/index.php/lg-l196wtq-bf-lcd-monitor-repair/

Problems like wavy or flickering picture, flashing power light, slow to display the picture or no power at all are all symptoms of a failed or failing power supply board.

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

BuddyMc

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Check for leaking/bulging caps in the power supply 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

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