Question about Samsung SyncMaster 740N 17" LCD Monitor
I left monitor on for a few days non stop and turned all "hybernations" and screen avers off in power management.. after i came back i saw monitor blue led blinking and there is now a noise coming from the casing of the monitor.. humming-like noise....
i thought monitor had died bla bla but somehow after a few weeks i tryed to turn it on and after 15 mins the monitor didnt blink anymore as if it woken from hybernation... now allways when i turn pc on i have to wait 15+minutes and spam keyclicks so that the monitor awakes from "sleep"
wtf is wrong with it any1 pls help?!
sorry for my poor english..
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Posted on Jan 02, 2017
SOURCE: No picture LED Flashes
I just did this to a friends monitor as well, a different model and not much different in build. I think you might have 3 screws on lower back side of cover. Start your separation from the bottom of the frame.Your power switch will remain on the front frame while the wire will remain with the rest.
HOW TO OPEN A SYNCMASTER 2053BW
NO SCREWS!!! Assuming that the stand mount has been pulled out..The seam around the screen frame is where you start. The frame has the prongs, the back cover has what the prongs slip over.The frame is coming off first! I got the side to open by finger, then used a small standard screwdriver to pry ever so gently(lifting frame from rearcover). Leave the power button assembly on the frame, pull wire only a little to relax any tension..you get about 3/4" in extra taped to panel. The hard part is done.;) Still holding the frame...Now lift the panel (where the power button assembly wiring goes under panel) with the power housing that is under it as a whole and you will see where the powerbuttonassemble detaches.Remove frame. Now..holding edges of panel into back cover, lift and flip the whole thing over and place panel face down on a perfectly flat surface..a towel on my desk works. Lift and remove back cover.Your now looking at the back of the board housing. The ribon is simple, on the panel end of the ribon, squeez the outer clips together and slide it away against the panel..The secondary tin plate is removable(if you need to remove it), two clips super close to where the sets of wires come around the housing and into the panel. Unhook the 4 plugs(blues and pinks)...Now lift the power housing off of the panel. The big board has the power. One screw to remove a ground plate first. Two screws to remove power board. Pics from phone.
The capacitors top-plain should be flat(not rounded) and there should be no color whatsoever coming through the top of the cap lines(google "bad capacitors"). The specs of the cap are on the cap. The 2 caps cost me $4.00. Now keep in mind there are hazards to this.Google them;)
Posted on Nov 18, 2009
A flickering display usually indicated a failing power supply. Check out our web site at www.ccl-la.com We have a free step by step repair guide for the 214t that will show you how to open the case. Once inside look at the power supply for parts called capacitors. The tops should be perfectly flat and I would bet your have bulges which indicate they are damaged. If you find bad caps and them replace them you should be back going without any flickering. Many LCD monitors will have issues after 2-3 years of use. If you have any more questions just let us know.
I hope this helps, if so please rate our solution.
Posted on Dec 27, 2009
Actually, the ultra high voltage 'charger' for the florecence (a.k.a. your back light)has gone Kaput...
If your lucky, someone will have a monitor like yours that has the back light come on, but no picture (should get a similar blinking light situation, but a different code. Like... blink, hold, blink blink, hold, blink). In this situation (if your comfortable doing it) you can swipe the exciter from that monitor and put it in your monitor. Obviously this is a more economical way of repairing the monitor.
Just to be on the safe side (as the repair is blindingly easy. 6 screws, pop out, pop back in) DON'T touch any of the back side components. You WILL shock the supreme **** out of yourself. Between the heavy duty capacitors and the ultra high gain transformers on those things you could jump start a bus. So don't be fooled... those little transformers pack a mean sting.
Hope this helps...
Posted on Oct 11, 2010
It sounds like you have bad capacitors on the power supply board. The capacitors in the power supply filter the power, when they fail the power supply can not maintain operation. The blinking is caused by the power supply starting up, shutting down and restarting again. The monitor is repairable, you will need to replace the capacitors on the power supply board. 8 capacitors will need to be swapped out. Here is a link to a repair kit with the correct parts.
Posted on Apr 20, 2013
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