LCD TV Repair Tutorial - LCD TV Parts Overview, Common Symptoms & Solutions - How to Fix LCD TVs

Repair review of common LCD TV Problems and Repair

This video is designed to be a guide for testing and troubleshooting your TV repair. Please note that other complications may exist that aren't addressed in this guide. While we always strive to provide accurate and detailed information, we can't guarantee that it will fix your TV's issues.

*Warranty & Shipping Prices May Vary. Please see Product Page on our website for more information!*

We are going to be giving a general overview of LCD TV Repair in this video and we are going to be taking a look at the different components in LCD TVs and what can go wrong with the components and the symptoms they will show and how to diagnose the problems and how to get them fixed.
Before beginning work, be sure you have unplugged the TV from any power source and that you are properly grounded.
Remove all the screws for the back cover of the TV.
Remove the back panel of the TV.
Identify different parts of the TV. Power supply takes in and distributes power throughout the TV.
Main board typically manages all inputs and outputs for your video and sound.
Backlight Inverter controls your CCFLs and the light source for the TV.
T-con board connects the video from the main board to the panel through the LVDS cable.
Not every TV is the exact same.
There are two different levels of TV repair, component level repair and board replacement repair.
The first thing that could go wrong with the power supply is that the TV will not turn on. Be sure your outlet works and then begin to diagnose the issue and either check components or replace your power supply board.
Some common problems on these power supply boards are bad capacitors with bulgy caps or leaking fluid.
The first sign that the main board could have a problem is if you do not have an image on the screen. Be sure your source video is working correctly. Either replace the problem components on the board or replace the entire board.
The t-con board could show a problem symptom if you are able to hear the show on your screen, but you cannot see the image, there is most likely a problem with your t-con board. The t-con is also known for causing vertical colored lines or half of your screen not having an image.
Backlight inverter problem symptoms turn on the TV and the image only shows for a second and then the image goes black, or if you have a flickering image on your screen it could be the backlight inverter that is causing this problem.

TV Repair Made Easy™

[sethwoodruff]

What a great crash course in TV repair. Thank you for adding a leaf to the tree of knowledge.

[mikestearman]

Thanks for the clearly presented lesson. Module replacement is usually the best way to go, because most folks aren't adept at desoldering/resoldering components.

[shopjimmy]

Thanks for watching our TV repair video! Due to YouTube policy changes, we are no longer answering tech support questions in the comments section. We apologize for the inconvenience. If you need additional tech support, please visit FixYa.com or contact your local TV repair shop. Good luck and let's fix your TV today!

[chrishulley]

My Philips LCD TV took a power hit a couple of months ago.  I took it to a repair shop and they replaced the power supply.  Works great, except now it won't find any digital or analog channels when I perform the Auto Detection (antenna source).  I have a couple of smaller LCD TV's in the house and they are picking up digital channels (antenna source) just fine.  Is there another part that I might need to replace to get it to find the channels?

[misterfrediemcfullvlogs]

Boss i have my TCL lcd Model: L24D10F the issues are power standbye on, backlights on automatically TCL post in the monitor, but no images, and when i turn the switch off TCL sounds heard. What im gonna do sir? Thank you.

[dodoubledragon]

I have a Vistron 42" plasma (EB4219PD) which has a intermittent image fault, the tv powers up fine but every 5-10 mins the image moves to the right, leaving less than quarter of the screen black/blank & the rest of the image has horizontal scrambled look to it, after about a minute it returns to normal, any ideas would be appreciated.

[super_light]

I have problem on my Sony 3DTV

KDL-47W802A

from 1 year my picture quality is very poor and video noisy with color not quality as well contrast low, I see HD content like SD on all source bluray or hd setellite channels or the picture on TV not quality as was it new
are you advise to me to replace my main board

Thanks

[dennisdrevna]

Great video. I just acquired a Sony LCD TV model # KDL-52xbr6. Every thing works OK on the TV except the picture is dim and heavy on the colors after it warms up. any suggestions.

[universaltv]

i have a sony XBR48X800E that does not turn on.no power at all.no red light either.i checked the power supply cord and it has power.
i changed the power supply board and still no power.i suspect the main board, any suggestions?

[ALPHAGENXCORP]

hey boss, what's the name of the small metal part within the TV - where you screw the screw to mount the TV.... two of mine broke within the TV... maybe can get replacement... thanks

[peterperez]

Great presentation. Thx. Have TCL 43inch TV model 43s431. Have sound and a black screen. Pls advise what component needs replacement. Thank you.

[donnahenderson]

Hello Mr. Jimmy, My name  is Velma and I purchased a part for a tv and fixed it with your tutorial video. Thanks. Now I have a Sharp Aquos, LCD 60 inch. It powers on but only have a black screen and no sound.

[michaelshim]

I have a TCL 43S434 model but need a version 3 kit main board TCL 30800-00263 but you have it out of stock for awhile. Will you be getting any soon?

[xkeithx]

based on this video looks like i need two replacements ill check them thank you see i had picture problems first and then the tv wouldn't turn on that sounds like its a power supply and a backlight issue together Vizio E470I-A0 is the model

[josephyan]

hi, i have my sony lcd tv model number KLV-46bx450, the problem is, tv turns on for  seconds then after the sony logo apperas in the screen turns off then a 6 flashes of red led stndby light comes.. help please, is it only the mother board? im afraid that it would be the lcd panel.

[bobbrock]

I just replaced my mainboard on my CX after my television was randomly freezing and making a horrific siren like nose until I unplugged it. It would also randomly freeze without the noise and I would have to unplug it to get it to work again.

I ended finding a lot on eBay containing a used like new mainboard, power supply, wifi module, power button, and screen board for only $75. I couldn't believe how cheap I got all of these parts for; $75 for a $291 mainboard is a steal. I got really lucky finding this deal. My tv works fine now and I have a ton of backup parts as well. Doing this myself saved me around $500 to $600. The hardest part was moving the tv out of the carpeted room and into a room without carpet.

[lesegolekhoathi]

Hi Guys thanks for the great videos, they help lots. I have a LG 60la8600 and the screen just went blank the other day, i had one of LG's techs come check it for me and after paying a call out fee he told me my T-con board (P/N 6870c-0445a) was damaged. asking him where can i get one he told me i couldn't get it separately as it comes with the screen, only problem is the screen cost more than the price of the TV itself. I then started my mission to find alternative repair options cause only 3 years ago i spend close to $3000 for a brand new TV and now i must use it as paper weight. after months of searching i finally found the exact T-con board for my TV and the seller was kind enough to give me two of them. excited i then installed my new T-con and boom no change still no picture just a slight glow as before, tried both T-con and same result. i then wondered if its possible that the problem is something else maybe the main board but though i may end up buying all the parts in my tv so maybe look help instead and that's how i got to your channel. needless to say I've tried your website lots of times but get an (access denied error) don't know why but maybe you can help me with that too. but preferably please help me first with a diagnosis of my LG's problem. maybe this is important, TV has sound but no picture and when i press the menu button on the remote i can see something is happening on the screen in the form of the glow intensity but nothing other than that. please please help thank you

[joemason]

Hi i have hisense 55 inch 4k tv red light goes off when i press it and it stays off with black screen no signal or sound....could you point me in the right direction im going to have a go at it myself ....nice informative vid model no is HD551918M8S11185JCG0313

[ShuswapBCPortal]

hey Jimmy, we have a fun one. our 4 year old thought it'd be fun to spit water on the screen. now the screen has no display, but there is sound. I took apart and can confirm the backlight is working. seems like the t con board, but it did not get wet. before I go and buy the part, wondered if you have any thoughts on what else it might be. thanks so much!

[elcanaltvguadalupe]

hola jimmy un saludo muy especial desde Colombia, gran problema es la humedad en la pantalla