Model #47LE5400-UC LG LCD Television

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Question and Answers

Q:

sound no picture 47LE5400UC Lg Led television

A:

Thank you for contacting SearsPartsDirect.com with your questions about your television. I am so sorry you are having problems with it. I know the TV is a key component in our daily lives and know you want to get it working quickly. In this case I recommend you have this tested and repaired by a qualified technician. Internal components of the TV can retain dangerous high electrical charges even when the TV is disconnected from the power supply.
 
Here at SearsPartsDirect.com, we love to help you with your home repairs but in this case, for your safety, we recommend you have the TV serviced. If you would like a Sears technician to complete the repair, you can set up service at www.SearsHomeServices.com or by calling 1-800-469-4663.
 
Thank you for your understanding in this matter. I hope we can help you with any future repairs. Thank you for choosing Sears, we appreciate your business.
 

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Natasha12 -
Sears Technician
August 18, 2015
A:

i am aware of the voltage issue, but that did not answer the question I asked.

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len -
August 18, 2015
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Q:

47le5400 no sound no backlight no picture 47LE5400-UC Lg Led television

A:

I know how important it is to have a good working TV in the home so that you can enjoy a nice movie. A TV can be tricky to troubleshoot and for this reason I suggest you set service to have a certified technician fix your TV. I am adding a link below in where you can set service. I hope this helps with your TV troubles while you wait for your expert response.

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Joseph P. -
October 25, 2012
A:

Hello Andrew,

Note: Working on a TV can be difficult and dangerous due to the high voltage circuits inside. Always remember to unplug any TV before trying to work on it and if unsure of the proper procedures, use the service of a trained professional.

I'm sorry to hear that your television is malfunctioning and I would like to assist you. The power supply and the main board work in conjunction. There are voltages that go to the main board from the power supply and vice-versa. If either board has a fault, failures will happen. From the description of the issue and what has been done, it is likely that the signal that tells the power supply to turn on the backlight is missing and that is generated on the main board. It is likely that the main board contains the fault but one of the pitfalls is that it may be more than just the main board and could be elsewhere. Use a flashlight and shine it into the dark screen when you are sure the set is on (it if appears to turn on with no image) and see if there is any type of image. Look in areas that you know menus are displayed for signs of a picture without the backlight. If there is an image and no backlight, this would be an issue with the panel itself. If there is absolutely no image, it is likely that the main board has the fault and it is probably not sending information to either the panel/t-con or the power supply. There should be a wire that is designated as backlight on or BL_on that runs between the main board and the power supply and it should show between 3.3 and 5 Volts DC at attempted turn on.

This should give you a good idea of what may be happening with your TV. Please let me know if you would like more in-depth information or any further assistance.

Jerry C

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Jerry C -
Sears Technician
October 26, 2012
A:

ok so i bought the main board and the panel it self they will be here in a week the only thing that looks like a problem is the ribbon wires running in between main board and the panel how do i disconnect the ribbon wire?

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Andrew Jones -
October 26, 2012
A:

If you have the ability to take a picture of the actual connector and post it in a reply, I can direct you. If not, I can attempt to find an image that shows these connectors. There may be two small tabs on the outside of the cable(s,) they are referred to as LVDS cables, and when literally squeezed they release. Some are simply locked in by spring force within the connector itself and others use an integral locking bar that is in the cable receptacle. most are the spring force type. Be very careful to not force or kink the cable. There is a lot of digital data that is transmitted via these cables and if damaged it's all over until the cable is replaced.

Just let me know if you can take an image and reply with it, or not.

Jerry C

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Jerry C -
Sears Technician
October 26, 2012
A:

it will not let me upload photo to this sight

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Andrew Jones -
October 26, 2012
A:

Make sure the file is not too big, then click Add an image below this box and select then attach it. Keep the file around 500 kilobytes if you have the ability to modify it, that will be enough detail for me to see. If not, I will try to find an image of the connector.

Jerry C

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Jerry C -
Sears Technician
October 26, 2012
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Q:

LG LED TV sound but no picture

A:

I understand how frustrating this can be, now that foot ball season is here TV's are starting to act up. While you are waiting on an expert to answer your question, I suggest you set service with a Sears technician so they can fix this for you. I have attached the link below. Hope this helps!

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Dezeray -
September 25, 2012
A:

Since the backlight is on then the problem would be the T-con board. It is a slight chance it would be the main board, but most likely the T-con board. To give you a part number and price I would need the service model code off the back of the set. It starts the same as the model number but has several letters at the end. If you could provide the service model number, I would be able to look up parts.

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Dusty J -
Sears Technician
September 25, 2012
A:

47le5400-uc.auswlhr. Thank you!

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Pamela -
September 25, 2012
A:

Unfortunately, the T-con board is part of the LCD panel assembly. The price of the LCD panel is well over the price of a new TV.

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Dusty J -
Sears Technician
October 03, 2012
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