Question about Samsung SyncMaster 943BM Flat panel TFT 19" Monitor

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I have a samsung 19'' lcd computer screen (4:3). recently, every few moments the screen flickers between shades of white and yellow until it "calms" down (or stays in yellow). sometimes this flickering ends in the original bright display and sometimes it ends with yellow shades. i haven't done anything special with this monitor lately so i have no idea why this happens like that... i already tried rebooting the pc, turning the monitor off and on, taking the cable out and in, but nothing helps. this situation stays the same.

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It does this another PC too?
Otherwise look for bad caps.
http://s807.photobucket.com/albums/yy352/budm/Samsung%20943T/

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: http://s807.photobucket.com/albums/yy352/budm/
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:
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://www.fixya.com/support/r7406380-tv_training_manuals
Failed TV and Monitors: http://s807.photobucket.com/albums/yy352/budm/

Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague

Capacitors kit: http://lcdalternatives.auctivacommerce.com/ he can make you a set of caps for you.
Or www.digikey.com 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 Dec 31, 2010

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Posted on Jan 02, 2017

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