Question about Samsung SyncMaster 740N 17" LCD Monitor
I have two of these screens, the first developed the problem last year; the second is now developing the same problem. Whenever I turn it on, a fairly loud white noise sound is emitted. It dies away after a second or two, but is becoming progressively longer to do so. the white noise is constant on the abandoned original screen.
Any ideas on what is causing it and more importantly, how to solve it please!!@@
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Posted on Jan 02, 2017
SOURCE: samsung syncmaster 204b
Yes. There is no vertical deflection. The circuit that controls vertical deflection is bad. This is an easy fix for a TV tech. Take it to the TV repair shop.
Posted on Jun 20, 2008
SOURCE: white lcd on my camcorder
hi there.. the video screen has a ribbon cable that passes through the hinge and when it wares it breaks ..this is the fault you have.. i have replace the ribbon and have previously posted the repair details on the fault website..if you need help with getting part or instructions, e-mail me ..cost of ribbon £11.40 and about an hour of your time to replace.. good luck..Stefan
Posted on Dec 27, 2008
This sounds like you may have a bad color wheel. If you want to change this yourself you need to be aware that even with the tv unplugged there are still dangerous voltages in the set.
Changing the color wheel is an involved repair the wheel it's self is very fragile to handle, they can be purchased on line from many sources.
The cost from a service center would be a normal service charge plus about $150.00 for a color wheel. If you have a service center come out to your house explain your problem clearly and they will know they need to bring a color wheel, it will prevent the tech from having to make a second visit.
Posted on Sep 05, 2009
Yes this is the color wheel that this tv has you would need to remplace the color wheel here is a web site where you can find it for a good price
Good Luck and besta regards
Posted on Dec 18, 2009
Tips for a great answer:
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Basic LCD monitor and TV troubleshooting guide:
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.
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