Question about Samsung Computers & Internet
Posted by Anonymous on
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Posted on Jan 02, 2017
Once you have stripes or lines in the screen then the only solution is to get the screen replaced but that would cost just as much or even more then getting a whole new monitor.
Posted on Aug 14, 2009
rcpips, You may need to replace one or possibly 5 -8 aluminum can "electrolytic filter capacitors" on the "switch-mode-power-supply/CCFL inverter board. If, as you say "works for 5 or 6 seconds" then that means that fuse is good. Another thing you will need to inspect SMPS board for is "cold" "frosty looking" solder joints where the components (surface mount or through hole) are soldered to the copper circuit traces. May need large magnifying glass or low power inspection microscope to locate them. Resolder any that look bad or loose. Some solder joints have thinner than "hair" thermal fractures that can also cause YOUR TYPE OF SYMPTOM!! PARTS: digikey. mouser. newark. and possibly Radio Shack. If buying filter capacitors, make sure they are rated 105 deg C only!! NOT 85 deg C!!! If caps need to be replaced (swollen, leaky) be sure to tell us the brand name you find installed on your unit! CAPXON, ELITE, JUN-FU are just 3 that you don"t want to find in your unit. BAD news if you do!! If DIY suits you, remember to document with "close-up" digital stills your unit tear-down, so you can reassemble unit without any "extra" parts laying on kitchen table!! Filter capacitors are polarized. You put them in + to +, - to -!!! if you put them in backwards they go BOOOOMMM!!! Hope this helps a little. lmistyrel on aim or 12fixlouie at fixya.
Posted on Jan 30, 2010
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The 920nw did have a 3 year warranty on the unit but they will be out of warranty now. The flickering power light is an indication of a failure in the power supply board. When the board fails it can't start up correctly and the power shuts down over and over so you get the blinking light and no display. This is a very common failure point on all LCD monitors after a few years of use. There are parts called capacitors on the power supply board and they filter the output power. When they fail the power is not properly regulated and the power supply shuts down and tried to restart so you get the flashing. Here is a link to a repair guide that will show you how to dis-assemble the unit and then what to look for and replace to get it back up and running again.
The repair guide has pictures and videos to guide you through the repair.
I hope this helps, if so please rate my solution.
Posted on Jan 18, 2012
Same problem! (Oct 2012). When I look at a dark photo, or visit a dark website, my monitor would fade to black and I had to turn it off and back on. My Samsung SyncMaster started doing this today, and I've had it for years. I had to change to Game setting too. So basically something in the monitor is no longer working, but Game mode seems to be okay with me. It seems other monitors have problems with Dynamic Contrast, which is supposed to lower the power to the monitor to make dark images seem more natural, but when it messes up it just blacks out the screen. In some monitors (not mine though), dynamic contrast causes horrid flickering. I bet my warranty ran out a long time ago but I'm still going to check in on this. I imagine there is a tiny chance my Windows 7 drivers might causing this, but I highly doubt it because the setting is in the monitor and not in windows. If anyone has a solution to FIX the dynamic contrast, please let me know!
Posted on Oct 07, 2012
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