Tip & How-To about Televison & Video

Repairing your own Television

Every day we see this type of post regarding self television repair. This explains why you can't diagnose television problems on an online forum. The television sections are really only for help with manuals, wall mounts and remote codes.

Here are similar questions that we see often.


Question:

I've replaced everything in my television because it previously had a black screen with no lighting. Now it doesn't turn on at all and all I have is audio. What could be the cause ?

Or

Turns on and sound works fine, but the picture is distorted (solarized? polarized? not sure what the term is) I replaced the main board, but that didn't fix it.


Or

I have an LG 55LM6200-UE with a dim lower-left. I just replaced both LED strips with no resolution. There is no physical obstruction visible, so this has to be a cable or board problem, right?


So your television stops working properly and you think it must be easy to fix, because you can buy boards on eBay, and you can watch YouTube videos. So you make a decision, you buy a board and you fit it, but the television still doesn't work as it should! This is a classic case of the 'let's try replacing this' method of television repair and illustrates why it is a bad idea. It doesn't work for a number of reasons.

To correctly diagnose issues, you need to know every board, what it does and every component on the board and what they do. You need to know which part has failed, replace the failed component, or replace the board. The parts you purchased off eBay were probably out of scrapped sets and not tested. The part you put in was dead when you put it in, so you just moved on to another guess at what might be the cause and replace a board that is fine. And so it goes on, you change all the boards and it still doesn't work because your first replaced board was a dud. Did you notice the large print that says 'NO Refunds, NO Returns'. This is to stop you sending your old one back and saying it didn't work, but the unscrupulous sellers use it as an excuse to get money for selling items that may, or may not work! The course to be a television engineer is 2 years full time education, and they own thousands of dollars of test equipment. Take it to someone that knows how to diagnose and fix. It is by far the cheapest option. The part that failed might be a 20 cents fuse diode hard soldered to a board. They will charge you $5 in parts and a couple of hours labour. It's not the fix you want to hear, but it really is the best advice.

Andrew - Fixya Moderator - Expert

Posted by on

Televison & Video Logo

Related Topics:

Related Questions:

0helpful
1answer

I have a vizio serial number LAUATCAR3005225, Part number 10228060222, it has background light but no picture, no sound, what to check and can it be fixed?

Unplug it over night to reset. If that doesn't fix it, I recently wrote this.

Every day we see this type of post regarding self television repair. This explains why you can't diagnose television problems on an online forum. The television sections are really only for help with manuals, wall mounts and remote codes.

Here are similar questions that we see often.
Question:

I've replaced everything in my television because it previously had a black screen with no lighting. Now it doesn't turn on at all and all I have is audio. What could be the cause ? Or

Turns on and sound works fine, but the picture is distorted (solarized? polarized? not sure what the term is) I replaced the main board, but that didn't fix it.
Or

I have an LG 55LM6200-UE with a dim lower-left. I just replaced both LED strips with no resolution. There is no physical obstruction visible, so this has to be a cable or board problem, right?
So your television stops working properly and you think it must be easy to fix, because you can buy boards on eBay, and you can watch YouTube videos. So you make a decision, you buy a board and you fit it, but the television still doesn't work as it should! This is a classic case of the 'let's try replacing this' method of television repair and illustrates why it is a bad idea. It doesn't work for a number of reasons.

To correctly diagnose issues, you need to know every board, what it does and every component on the board and what they do. You need to know which part has failed, replace the failed component, or replace the board. The parts you purchased off eBay were probably out of scrapped sets and not tested. The part you put in was dead when you put it in, so you just moved on to another guess at what might be the cause and replace a board that is fine. And so it goes on, you change all the boards and it still doesn't work because your first replaced board was a dud. Did you notice the large print that says 'NO Refunds, NO Returns'. This is to stop you sending your old one back and saying it didn't work, but the unscrupulous sellers use it as an excuse to get money for selling items that may, or may not work! The course to be a television engineer is 2 years full time education, and they own thousands of dollars of test equipment. Take it to someone that knows how to diagnose and fix. It is by far the cheapest option. The part that failed might be a 20 cents fuse diode hard soldered to a board. They will charge you $5 in parts and a couple of hours labour. It's not the fix you want to hear, but it really is the best advice.

Andrew - Fixya Moderator - Expert
0helpful
1answer

sony kdl-52w4100 T-con board problems

To explain all about your problem post sill take so much time to type in all. More over, I cant insert any PDF files by this window, to show you the position of T'Con board inside your TV. Just visit this site. It is my blog. Purely meant to help to repair electronic equipments. electrohelp online.blogspot is the site address. Visit it. Google for it. To know you more, I've the service manual to your set in PDF format. Just visit this site first. You can get more details by it; about waht a T'Con board. what tools do you want to replace it. How can it be replaced and so on.
If that site do not help you, contact me. OK?
0helpful
1answer

i have a philips 42" plasma t.v.model

hello sir Dave!!!

welcome to fixya..

Lets find out if that problem is worth to repair or not..I need some info regarding your TV such as how many flash of LED lights in front?..It will help to diagnose where the fault came from..

Please reply to this tread to post the info I need..

Thanks for using fixya..

regards,
Chester
0helpful
2answers

Picture problem

Can you post a picture of your picture so I can see the type of distortion youre having? It sounds like a convergence Issue, but a picture would help me acurately diagnose the problem. Please respond to this same post.
Not finding what you are looking for?

2,021 views

Ask a Question

Usually answered in minutes!

Top Televison & Video Experts

The Knight
The Knight

Level 3 Expert

76763 Answers

Ekse

Level 3 Expert

13435 Answers

Cindy Wells

Level 3 Expert

6356 Answers

Are you a Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Loading...