Question about Televison & Video
I have a LNS-4096 LCD that is ''breaking up'' on all sources - it looks like the image is being blended up and distorted. This happens usually when the TV has been off for a while and will go away if I turn the TV on and off frequently but will usually come back. I took it into a local authorized Samsung service location ''TV is out of warranty'' and I was told it was the T-con board that needed to be replaced. I work at a high end AV dealer in dallas and have sold Samsung for years - I am quite familiar with component level service as well - so I have purchased the Samsung service manual for this TV. I can not seem to find a part number description of the ''T-Con'' board on the parts list however - Can you provide me the part number the service department needs? - Also, I did some research and found that the T-Con board may be a consistant issue on some of these panels and that a firmware update may fix - see: http://forums.cnet.com/5208-13973_102-0.html?messageID=3020041&tag=forums06;posts#3020041
Is there a recent firmware I could get from you to see if this makes any improvement?
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Posted on Jan 02, 2017
SOURCE: got a new T-con but no luck
is your back light constantly on when you are not changing channels.if so replace the main board. can you see a menu if you hit the menu button ? that is generated by your main board..... replacing the t-con will only correct vertical lines in the pic.
Posted on Feb 28, 2009
I do not think T-Con can shut down TV, all it can do to blank the screen, I mean stop picture data towards LCD panel.
Sony would not give T-Con separately as its counted part of LCD Panel but its available in some part shops.
Let me know model number of TV and what boards you have been replaced in TV.
Are these power supply and main boards.
Posted on Nov 11, 2009
Testimonial: "Thanks so much for the speedy response. I don't know which 2 boards they replaced, but will find out. Thanks again "
Tips for a great answer:
Power on the unit in the dark room then shine with the flashlight directly in the screen, you will barely see the images. This is because your backlight is not functioning. The following reason is the caused.
1. Power supply - missing B+(supply voltage) coming from this board feeding the inverter board. This is caused by faulty transistor, dried/leaky electrolytic capacitor, open fusible resistor.
2. Inverter board - even the B+ is good from the power supply, if the fuse, driver transistor, driver transformer is faulty no output to the backlight resulting to black picture.
3. Busted backlight - even inverter board is good but if this is busted resulting to black picture also.
Diagnosing the fault is technical and if you don't have necessary tools and test instrument and can't fix it yourself, I would advice you to look for an experienced technician to isolate the problem.
Hope I helped you.
Thanks for using Fixya.
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I hope that this should resolve the issue. However, if the issue still persists then please contact LCD manufacturer for further more on the issue.
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