Question about Televison & Video
I just took apart my legend lec3719 lcd tv. its flashes green pink red with horizontal lines and you can't make anything out on the screen. I believe its the power supply circuit board however there are no bulging caps on it. any suggestions? any one know where I can pick up a new board?
It sounds to be a main digital board fault. If you wish to get more, http://electronicshelponline.blogspot.com/ Pull up previous posts there, either by type in the Brand name to your set in its search box, or view it in Mosaic / Timeslide / Flipcard option.
Posted on Jul 30, 2013
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Posted on Jan 02, 2017
I unplugged the TV and now the picture is back.I read that the LCD's are vunerable to static build up so unless my daughter is using her TV I unplug it.
I was thinking about getting a large LCD for the family room but I'm not going to until they improve on this technology.
Good luck to everyone!.
Posted on May 08, 2008
SOURCE: philips lcd 37pf9431d/37
finally got some help from customer service ----
the code flashing one then two red lights is for an upgrade of the software ---- you can go to their website and download a current fix to that problem onto a thumb drive----
\the power problem is caused by a bad power board--- you can replace them for any where from 130-330.00
dont need a service tech - take off cover and easy to replace---can find part on parts store.com for philips televisions --- used is about 130 and new about 330 -- used is a refurbished unit and works just as good as the new one
Posted on Feb 23, 2009
It's possible that the motherboard or the controller board for the screen is defective. At this point, I would use the warranty from Vizio. It should be no doubt that it covered. Here's the info you will need from the Vizio web site.
Posted on Jun 13, 2009
I had the Same issue. on a 50PF9431D/37 set. Many Plasma Set's use a LJ44-00118A PS-505-PH Power supply from Samsung. Known to have this common problem. If you can, or have a friend that can Solder components?. Unplug your set remove the back panel & locate your power supply. It will be the PCB in the center of the set just above the Video/Audio connections. http://www.shopjimmy.com/power-supply-unit-lj44-00118a-from-philips-50mf231d-40.htm. Is a Link to a photo of the PCB. Make a note of the locations of all cable connections then unplug them all. Un-install PCB, Check all Fuse first. I believe their is 5 or 6 of them on the PCB. Then replace the two 3300uf 10v 105C Radial capacitors at C8060 & C8059. Look to see if the Caps are deformed and or split at the top. The location of the caps are in the Lower bottom edge of the PCB. A local shop may Carrie them if not, digi-key has them. Part # http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=493-1754-ND. Total cost was $7 with S/H.
Posted on Jun 25, 2009
Blinking lights are usually an error code. Do you have a manual that will decode the number of blinks? Its not always the power supply.
Posted on Apr 21, 2010
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