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

I HAVE SAMSUNG UN50TU8000FXZA. A SEVERAL DADYS AGO TY TURN OFF AN I HAD PROBLEM TO TURN ON PROPERLY. I UNPLUGGED IT WAIT PLUGGED IT ........AGAIN.....THIS TIME HOLD START BUTTOM 30 SECCOND .....AFTER A FEW TIME TV START WORKING. YESTERDAY THE TV TURNED OFF AND I CAN TURN IT ON. WHEN I DO I HAVE BLACK ANE BLUE SCREEN. WHEN I DISCONECTED POWER SUPPLY FROM MAIN BOARD I GOT SOUND AND CNOTINUOUS REGULLAR BLUE SCREEN. ITS WORKING WITHOUT PICTURE. WHEN I CONNECTETED TO MAIN BOARD AGAIN JUST BLACK AN BLUE SCREEN ALTERNATELY. SHOULD I REPLACE A MAIN BOARD? OR ITS PROBLEM WITH TCON BOARDS ?

Hi
I have an old rak 46 tv and it goes black but the sound is on.i tried to find a back light but couldn't find it's exact one, i want to know can i use another brands back light and modify it?

I have samsung Series 5 Model BN68-02551A No Picture only sound

I can't seem to find led strips for my Hitachi LE50H217.

I have a sharp LC-70LE640U. the picture has horizontal way lines and the colours are distorted.

@rayfiore7779

I have a 55 inch Samsung UN55RU8000FXZA.

1) The standby light flashes momentarily when I try to turn on the TV but there is no picture/ sound/ or backlight.
2) The 3 electrolytic caps on The Power Supply Board at the top left ( near the o/p to the main Board) have 'domed' tops.
3) When I unplug the Main Board from the Power Supply Board the Backlight turns on.
4) The o/p connector of the Power Supply Board has ground at the pins at the ends & all others are 13Vdc.
5) The 13Vdc is present with the Main Board plugged in or not plugged in.
6) The Main Board does make a sound at turn on like a 'Flyback Transformer' (but only for a moment).

My first thought was that the Main Board has a short that is drawing down the Power Supply & keeping the Backlight from turning on. But the other possibility is that the Power Supply Board can't source the current to the Main Board.

7) Additionally, I disconnected the 3 output cables from the Main Board & the backlight is still not lit.

Have you any suggestions?

Advice please. I have ann old Sony Bravia and all the HDMI ports do not work. Should i replace the board?

I have a dixon 31 inch, LED tv, model number:STY0632 , someone peeled off the serial number sticker , like you said in the video, the backlight is on, like when I switch on the TV, you can see the blue-black backlight is on, the audio plays fine, but there is no image, is this the T-con board that needs to be repllaced? Then at some point when the Tv gets hot, the image suddenly appears.

Will a v series 65" internal parts fit a E series 65" vizio

My tv go dead

Do you know other source where to get parts that is reliable and accurate ?

Hi sir thank you very much for your knowledge sharing .now problem .I have sony kdl 49We633 .SO IBWAS WATCHING AND ALL OF SUDDEN EVERY THING WENT BLACK .THEN I TRIED MANY THING ALL THE TRICKS MENTIONED BUT IT DOES NOT COME BACK ON . CABLE FINE PLUGS FINE .SO WHEN YOU SWITCH OFF MAIN POINT AND SWITCH BACK ON .POWER WHITE LIGHT COMES ON AND YOU SEE A VERY FAINT IMAGE OF SONY BUT NOTHING COMES ON EVERY THING GOES BLACK .THEN RED LIGHT FLASHES 6 TIME AND ALL THATS ALL THAT HAPPENS .ANY HELP ALSO OF YOU CAN MAKE A VIDEO OF DIFFERENT PROBLEM WHICH ARE ENCOUNTERED SYMPTOMS AND EEFECTS AND WHAT TO CHECK AND HOW TO CHECK AND FIX THAT WOULD BE AMAZING .BUT PLEASE MY PROBLEM .ITS QUITE EXPENSIVE TV .IM FROM UK

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

My lg tv seems to have a problem with color shades. Colors are very vivid on the left and right sides. The middle of the screen is not as vivid,the reds,yellows are dull and yellows look like lime

i have a jvc 55 inch smart tv model number looks to be lt55c670 or 870b picture is good but has block of lines down centre of screen changed the tcon board but still the same any ideas what else to check tx

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

Skyworth tv 40 inches, just showing blue screen

Excellent explanation. Keep up the good work.

Looking for hisense 65inh

my smart tv been dead i repaired the power supply its come back to life’s everything’s is works but nothing i can’t not control it’s any ideas what’s the other things promblems

Jimmy, just like you've asked us to send you questions, I did send you one but did not get a response. One of the 6 plastic connectors to the scan board is unglued and I don't know what to use to glue it back to the board without messing things up.

Good evening sir...I have a SHARP TV with model number KDL40V2000. It's showing blurred images and the screen has horizontal marks whis is felt while rubbing the surface of the screen with the palm. Please what could be wrong?

Anybody need TV how are you? LED light

My TV turns back after showing for some seconds of being powered

What is the solution to this problem of my TV

Hi I have a tv TCL 75s453 that shows a blue screen. That's and have a nice evening

Thanks

VITRON MODEL NO.: HTC 3246 POWER VOLTAGE: AC 100-240V-50/60Hz POWER CONSUMPTION: 60W USB:DC 5V 500mA 4. The tv doesn't display any images or light.

thanks for the information

the only thing in common with modern day lcd televisions are the garbage components intentionally used in manufacturing to ensure premature failure and disposal.

Very informative video thank you

Philips roku tv MODEL NO.:50PFL4756/F7 replaced power supply board still not working. Thanks

I can you clicking every time?Turns on and then I turn off stays for a bit

That tune in the background rocks🥳

my tv has a display problem

Boss my sonyTV model KLV- 32R302C with serial# 3987604 ,no video appear on the screen, only blue color and audio,please guide us thank you...

Hi, my Sony LCD TV model No. KLV-40R352D, Serial No. 3661886 gives boot display word Sony for 2 seconds and goes off again... Back is still on... Help me trouble shoot and fix.
Thankyou

I took apart my sharp LC-32LB370U to replace the LED lights it took 2 weeks to get the parts and now I've forgotten how to put the legs and speakers back on the unit. Is there any diagrams showing replacement parts?

Westinghouse tv model VR-4085DF any idea?

The display looks like a smashed screen with multiple lines running across the screen like a cracked screen.

My TV black out showing some kind of lines while I was using it and I wanted to try and fix it can you please help me

How can we know most easily,I.e, changing a certain part will correct the issues immediately?is there any device to put there in lieu of lcd,,,Audio -video circuit-etc?

How can we know most easily,I.e, changing a certain part will correct the issues immediately?is there any device to put there in lieu of lcd,,,Audio -video circuit-etc?

I have any questions about my plasma TV

Symptoms:
Tv don't turn on;
Led ligths blinking 7 times

Tank you to resolve my trouble

you kinda sound like the raaaaaaaaaaaaaaaaaaaaaaa guy

hi i need to replace a power cod that was taken out, LED tv model D50-M30 JVC

LG 65uh6030 tv onside of screen black