Question about LG 47LC7DF 47 in. LCD HDTV

1 Answer

T-Con board only half works at a time

Replaced T-Con Board All worked initially Then no picture at all when cover is placed on Now will not work with both ribbons seated, only one or the other

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  • LG Master
  • 14,553 Answers

The issue may be inside the display panel or very near it---try very gentle probe of cables with back off and set on----careful!

Posted on Dec 03, 2012

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6ya6ya
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Posted on Jan 02, 2017

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  • 298 Answers

SOURCE: Loud pop Blank screen 42 inch Viore Plasma

Unfortunately, that board is the inverter board. And for this model the inverter board is only supplied with the the PDP panel. The panel is quite expensive, here's a link if needed:

LG 42PX5D Replacement Part PDP Plasma Display Panel

Posted on Dec 29, 2008

barbu51
  • 566 Answers

SOURCE: i have a lg 42pc3d plasma that will work for about

hi gsgoer
Just read the description of your problem and without being there with measuring tools;
The power supply estimate sounds like a fair evaluation of the problem in your model.
Good luck with the repair.

Posted on Feb 22, 2010

Testimonial: "sounds good thanks"

eagle338
  • 4889 Answers

SOURCE: My LG 37LC7D tv will work fine for a fw minutes

What about the sound? Do you still have sound when the image is flickering. God help the guy who replaced the T-con though. It sounds like a power supply or inverter issue, provided sound is not affected.

Posted on Nov 16, 2010

SOURCE: LG 42LC7D-UB, Bad LCD Controller Board????

Steve, that was awesome. Thanks a bunch. I already have the tools and I can get the solder easy enough. Thanks a again. I went to Best Buy this weekend and all they could say is that the entire board would need to be replace and that they really recommended a new tv as the cost for the new board would be as much as a new TV.... :( typical of them!

Posted on Nov 22, 2011

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1 Answer

Would replacing the T-Con board in an LG TV55LN5600-UIfix the issue of 'no picture and base red led blinking 3 times'?


The service manual in the troubleshooting section says that is a power board error, I would try that board.

Nov 25, 2017 | LG Televison & Video

1 Answer

I replaced the T-con board on my Vizio TV, but I still don't have any picture, just sound. What else could it be?


Think something may have gotten unhooked when you put everything bacK together? Check out all connections and ribbons between boards for proper contact.

Jun 22, 2016 | Vizio 60" E601I-A3 Full HD LED-LCD TV

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I have a Samsung TV model UN50H6350AFXZA which has sound but no picture. Backlights work. Replaced t-con board with new one, but not fixed. What next?


Main board. T con board is only involved with video issues. Main board goes both ways and since you already replaced the T con board that is your only alternative. U got backlite so inverter board is good.

Nov 13, 2015 | Samsung Televison & Video

1 Answer

Why is my TV burning through T-Con boards? Ever time I replace one, it works for 2 hours and then I lose picture again. I've replaced 2 so far.


Hope the TV have problem with the either power board or the lcd panel. Try to check the power supply is its produce correct voltages mentioned on its connectors if you need help then check the video for that. if the power supply finds ok then you have problem with the lcd panel. In lcd panel there is a some ics which used as the driver of the pixels. the tcon sends data to these ics. and if any onf the ics draws more current from t con board then it can dame the t con. They are not replaceable one ,its integrated to the panel. if its faulty then you have to go for a new panel for that tv. And it would be a expensive repair.

Testing LCD TV Power Supply BoardsSTEP BY STEP
If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience
http://electro-medical.blogspot.com/

Nov 11, 2015 | Hisense 50 Class 1080p LED Smart HDTV -...

1 Answer

Left half my my screen has different color bars running vertically down it


Hi,
Your tv have problem with the T con board. T con board is one wich drives the pixels in the LCD panel. There is no repair possible with these boards. You have to replace the T con board. Normally you can find the t con board in the top centre or the bottom centre of the tv covered with metal cover or aluminium foil.
Here i have added the link for T con board you can fin the picture of the board in the link

Ajin


http://www.ebay.com/itm/Vizio-M550NV-T-Con-3655-0022-0147-4A-0170-2372-0024-/280719517500?pt=LH_DefaultDomain_0&hash=item415c2fe73c

Feb 09, 2012 | Vizio M550NV 55 in LCD HDTV

1 Answer

Samsung tv negative image


LVDS cable from the T-CON
This seems like a problem with the T-CON board or it's connections. This is the low cost method to try.
If this set is under warranty you should return it to get it repaired/replaced by the seller. If not then;
This sounds like the T-CON board or the LVDS cable connection is bad. Turning on and off the set will cause the connection to heat and cool and not make good contact.
IF YOU KNOW HOW TO WORK WITH ELECTRONICS REPAIR(board replacing ) or have a friend with knowledge/skill you can fix it.

>Unplug the set and disconnect any cables.
>Lay on a flat surface covered with a cloth.

>Remove the back cover.
>The board is located near the middle of the set underneath metal shielding.
> Re-seat the cable by disconnecting and re-connecting the flat cable(s) connected to this board. See if the picture corrects.
You can try this several times.

If this does not correct the problem you may have to replace the T-CON board.
>Replace the shield and back cover.

You can search for replacement boards from places like shopjimmy.com, ebay and other sites.


The board will look something like this;

sjlj9402311e.jpg

Mar 30, 2011 | Samsung Televison & Video

1 Answer

When I turn on the set, the right half of the screen is distorted. It flickers, different colors move from center to far right of screen, double images that appear as negitives and sometimes that half of...


Hi,
Symptom shows problem with lcd panel (screen) however, t-con board that is part of lcd panel could be defective and cause of these symptoms.
T-Con board is located at top center of cld panel at rear and would be covered with metal shield. There are three type of t-con board utilized according to lcd panel and are available in shopjimmy.com
Please check what t- con board is similar with your tv board to order it. If you are not handy with electronics stuff repair then local tv repairman will help you to replace t-con board that might solve your tv picture problem.
Thanks.

Jan 29, 2011 | Samsung LN46A550 LCD TV

1 Answer

My Samsung T4665F has a start up problem. Initially Relays click then eventually it starts up but with colored pixels over the whole screen. Then I have to switch off/on one more time and the pixels go...


This tv 100% have power supply board problems and might also have the T-CON decoders board problems too.The power supply board,that the board,where the power a/c cord plug into it.The T-CON decoders board,that the board sit wright in the middle bottom of the LCD screen panel.Tries websites like Shopjimmy.com,Ebay.com to buy a whole refurbish power supply board for the replacement.Replaced the power supply board,should get ur tv power up right away and work,no more series of clickings noises.But,if the tv still have alots colored pixels lines on the screen.The T-CON decoders board it also dead.Replaced the T-CON decoders board too.

Oct 29, 2010 | Samsung LN-T4665F 46 in. LCD Television

3 Answers

Horizontal lines on tv


TRY REPLACED T-CON BOARD
Manufacturer Samsung Part Number BN81-01312A Description A/S-T CON BOARD

Dec 17, 2009 | Televison & Video

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