Question about Samsung LA40A450 40 in. LCD TV
Displays a correct picture for about 2 seconds then flips to a negative image.
Sounds like T'Con fault. Contact any service technician. If you wish to get some details; check the site linked here. Viewing it in "Mosaic" or "Magazine" will make surf easy Pull up older posts. Surf the site with patience.
Posted on Apr 20, 2014
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Posted on Jan 02, 2017
TV display inverted colors, like a negative photograph because defective panel. Mostly from T-con board. Replace T-con board.
I hope that will solve your problem.
Posted on Mar 10, 2011
SOURCE: HI I have a Samsung LN-T4661F
Is it like this?:
I think I have the same problem on my LNT4661F. I happen to also have a 4061F and just temporarily swapped main boards, which confirmed that it is NOT the main board which is bad. Swapped LVDS cables to confirm that's OK too. If you replaced the T-con board, then that leaves the power board or the panel. Did you make any progress on this?
All the caps on the power board look good, but I hear a whistling noise from one of the power transistors.
Posted on Nov 18, 2011
Negative image denotes a fault to its T'Con board. If you wish to get more details, check this link. http://electronicshelponline.blogspot.com/ Selecting the view option, either to Mosaic / Time slide, can be selected by the drop-down list, at the top left of the display window, will make surf easy. You can also do a search, by type in the brand name/model number/IC used, in the search box at the top right of the display window.
Posted on Oct 17, 2013
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