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No video, only audio on Sony LCD tv

Googled the problem and tried replacing the T-Con board, but still no video, only audio. Any other suggestions for parts/fixes? Or should I just give in and buy a new television?

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Posted on Jan 02, 2017

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SOURCE: Is the T-Con board the LCD controller? What is

Website has Sony LCD Controller 400WSC4LV0.4 for the KDL-40S2000. Other sites may also have it.

Posted on Mar 06, 2009

  • 1779 Answers

SOURCE: Complicated Question about repairing circuit board

As long as it's the same model, you can. You will be replacing the entire LCD display. Be very careful in doing so.

Posted on Apr 29, 2009

  • 1 Answer

SOURCE: Sony Bravia television hdmi stopped working

Installing a new software update will this issue. All you need is a compatible USB flash drive. Go to support on Look up your tv model and if there is an update, just follow the instructions to install it yourself. I have a KDL-46S5100 and this worked great. The download and instructions page I used was :

Posted on Oct 10, 2009

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SOURCE: Sudden loss of picture and sound on 40

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 "

  • 380 Answers

SOURCE: trying to replace t-con board on a 47lg50 lcd tv,

As soon as you take the back off the set, the t-con board is located at the top middle of the set under some shielding.

Posted on Dec 08, 2009

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It could be a defective T-CON board, defective main board, or a defective display panel.

I will try a new T-CON board first, then the main board. The display panel is to expensive to replace.

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I started having vertical lines on my screen whick first it was only around the upper corner edge

I would suggest that you check ribbon connections between t-con and LCD panel. Also I would have you power supply checked. Unclean sources from the power supply can cause all kinds of strange video problems. If the power supply checks out fine, and the t-con/LCD panel ribbon connections are ok, I would suspect a faulty LCD panel. You can try replacing the t-con, they should be cheap enough to take the gamble. But if you don't want to gamble, get a diagnoses done on the set.

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I have a Sony KDL 52w4100 LCD tv. When I turn the TV on, all i get is a blank screen, and no sound.

Tad G chances are you installed the wrong Tconn as that model used two T con boards both look identical but they are not interchangeable the two types were part numbers 185724011 and 185713211 I can assist with determining which version you have

Jan 11, 2012 | Sony BRAVIA KDL-52W4100 52 in. LCD HDTV

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My 52ince LCD Sony Bravia TV is started showing 2 vertical lines on each side, but they go away 20 minutes after starting TV. What is wrong?

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2 possibilities for that kind of problem,
LCD panel is defective or T-Con board is bad.
Please replace T-Con board in TV and if problem still exist, LCD panel is bad.
It is qualified TV tech job to replace board in TV so call local TV tech.

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