Question about Samsung SyncMaster 940MW 19" LCD Monitor
I have two of these, both of which were just dead. The back snaps off after the screws are removed and the power supply board is the small one with heat sinks and a number of vertically mounted electrolytic capacitors (cylindrical, maybe 1/2 inch in diameter, dark plastic covering, aluminum showing at the top). Some of the capacitors were bulged at the top which is always a bad sign. I decided to replace all of the capacitors in the area between the two heat sinks (six of them). The total cost from Digi-Key Electronics was under $9.00 including shipping.
820uF 25V (2)
1000uF 10V (2)
Get ones rated for 105 degrees centigrade.
Good as new!
Posted on Jun 20, 2009
I took the advice of wa7utv and found two bulgded capacitors the 1000 uf 10v. Ordered them online from digi-key and replaced just the two. My TV now works like new!! Thank you to this website and the fine gentlemen that posted the advice! IT WORKED GREAT!!!
Posted on Sep 17, 2009
I experience the same "power on" problem with mine, bought february 2007.
Just called the Dutch servicedesk of Samsung Electronics, just gave the serialnumber, next tuesday I will receive a new monitor.
Thumbs up this time for Samsung service
Posted on Sep 12, 2008
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Posted on Jan 02, 2017
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