Question about Samsung LN52A650A LCD TV
I have a Samsung 52" model LN52a650a, just over a yr old, so warranty is expired. It's getting a solid black line down the left side of the screen, also on the left side the picture is very blurred, even when displaying the channel, or any menu or onscreen functions on the left side, picture is also darker on the left then the right! Any ideas?
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Posted on Jan 02, 2017
I just had my lower Y-buffer board swapped out to fix a problem similar to yours. After an hour and a half of on-time, the lower half of the screen would flicker on and off with the same appearance you mentioned. Changing out this particular board fixed it for me. However, since it has gone from top to bottom on your set, it may be more of a main board problem for you (that controls both upper and lower halves). Beyond this, I don't know any more. I am considering getting a service manual to gain more knowledge about the various PCBs in the unit so I can fix any future problems myself.
Posted on Aug 27, 2007
Normally a samsung tv has a warranty until it's over two years old. So i'dd contact samsung about it and ask them.
With kind regards,
Posted on Feb 16, 2010
SOURCE: Black screen but have audio.
It's a pretty common problem. (If this is a plasma your post says lcd but it came up under plasma.) The no picture but sound problem is usually the y sus board. I've replaced 2 on mine now. The 680uf 35V capacitors usually are bulging because one of the power transistors went and took them out. This has happened to both of the y boards I had. One time the failing y board took out the buffer boards too, and once it did not. The fix is super simple and anyone with even the most rudimentary knowledge of computers or electronics can do the labor yourself. You should do the simple stuff first by just doing a quick test with a multimeter. Just check the power coming to the y board. After that you can just remove the y board by removing 3 cables and like 3 screws. Plug in the new board and it's done! You can source the parts from a place like shopjimmy or discount merchant. 3 boards were like 200 bucks. 1 board is like 100 bucks. Labor took me 15min. Think about that the next time an electronics repair place charges you 1000 dollars. Of course they check everything (Yeah right) and warranty their work (I don't) but if you check the service manual it states that this is the most common repair. Look for the Canadian manual online. Hope this helps!
Posted on Feb 23, 2010
Had this exact problem diagnosed by a local repair shop as a bad LCD panel. According to the technician there's a loose ribbon cable on the panel and it would cost as much to replace/repair as a new TV.
Posted on Sep 10, 2010
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