TV LCD THomson 26"

The Tcon Board or the LCD panel is faulty
If you wish to get some details; check the site linked here. Pull up older posts.
http://electro-medical.blogspot.com/

Press power and test or reset button on Remote control.
Else Put it on Auto Tune.

Regards
Rafique

Samsung HL-R5087W TV screen goes blank -tv/sound on - Forums ...

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CNETJun 11, 2015 - About a month ago, the at various times the tv screen would go blankeven though the tv ... Try turning off the cable/sat box when the happens. ... In reply to: Samsung SP50L7HX DLP TV linked to Sky HD box - same problem .... on it comesback to normal. however, once it went off again (Black Screen) after only 2-3 minutes. ln-t4069f picture problem lcd warmup - Forums - CNET
Jun 11, 2015
Samsung LCD TV LN-T5265F Black Screen Diagnosis Help ...
Jun 11, 2015
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The inverter needs replacement. You should be able to get one from www.tvrepairworld.com

The power supply is dead.Its better to repair by the authorized technician.

most likely the power inverter, also suspect the p/s. best to have a trained tech check it. Julio at [email protected]

If the power supply outputs are good! Then I would say the back light inverter is bad! If the screen stays black and does not come on.

While you have sound, take a flashlight and shine it on the screen, look very close and see if you can see a dark video image.
Let me know what you see.
lone99star

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/jason_77a19afa8d604dee

i am a technician and i too have this issue. if any of you can get a schematic and service notes, send them to [email protected] .com and i WILL find the problem and report to each of you. i cant get any help from sears all i need is to speak with a technician who actually works on these things, get the paperwork and then i am sure it is a matter of a module swap. any info will help us!

cannot be presise but at worse the lcd back light is failing or the supply to it . this is a job for a service engineer