
flyatyou66
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Apr 24, 2014, 9:42 PM
Post #2 of 2
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Re: [mjui123] RCA 46LB45RQ LCD HDTV black vertical line
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You should have got it for free. Here's the problem? The board thats giving you that problem is on the bottom of the panel.There are 2 of them- left bottom e- logic buffer and right bottom f- logic buffer.These are sodered straight to the lcd screen, no clips.On these boards there are flex cables that deliver ??? amount of vertical lines to the screen. On 1 of these boards a flex cable has shut down completely.(where black line is)There's not a heck of alot you can do.There are smd on these boards, (smd=surface mount device)maybe you can find out if one is no good. these are small theres resistors, caapacitors, diodes,coils. It could be any or all of these. This video shows a person taking a 46" tv apart. http://www.youtube.com/watch?v=d9XOCXLFwkM If you watch this at about 8:30 you can see the E&F boards hanging from the screen
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