Question about Samsung SyncMaster 172N 17" LCD Monitor

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I have s Samsung SYncmaster 172N digital montior. After bootup, the screen can stay on anywhere from 5 to 25 minutes and then turns off. All power mangement has been set to not turn off monitor. No keytstrokes will bring monitor back up. After being shut off for a half hour it will then come back on for a short while. I am using a NVIDIA Geoforce card. Any ideas?

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It sounds like you have thermal problem, try it with another PC first, if it still does the same, then you should look for cold solder joints, caps with leaking/bulging tops.
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 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.

Posted on Sep 07, 2010

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Posted on Jan 02, 2017

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