LED LCD TV REPAIR sound but no picture, black screen, dark picture pt1 

PART 2 WILL BE UPLOADED NOW ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-YgaL6X6eSaU.html FOLLOW ON INSTAGRAM FOR MORE instagram.com/tampatec/ #FixVizioE470iTVrepair

fantastic tutorials. I'm halfway through blindly fixing a 50inch TV that I picked up from the curb and this is giving me so many great suggestions for smart repairing. thank you

First time saying anything on RU-vid but wanted to thank you. This video saved me $250 and my tv. In the end it was both boards that needed to be replaced and BAM!

Excellent presentation. I like how you point out what the board does and what voltage you should expect. Looking forward to part 2.

This is absolutely outstanding. Perfect troubleshooting technique. Thanks a million - Tampatec

Why on earth would anyone put a thumbs down? This is the most helpful of all the videos I have seen to troubleshoot a TV. First of all, you get straight to the point and speak loud and clear. The recording is good for both image and audio quality and it is not 30 minutes long. Most of all it is very informative and to use a flashlight to save time and tell if you have a picture is brilliant. Thank you for putting up this video. I feel confident I will be able to troubleshoot my not-so-old 65 inch RCA cheapo model that still should have life in it. I watched the picture fade out before my eyes and the blue light tells me it's on still. I first assumed I blew a capacitor or powerboard and I have not even opened it up yet but I am betting the flashlight trick will reveal what I now suspect. I didn't have an audio source coming out the tv at all because I am using it for my computer and the computer is running the audio through my studio moniters. I never used the TV's speakers but it would have told me the signal was still getting through.

God has bless this guy with such excellent talent that he showing us how to save money on repairs for those of us who are willing to try.... keep up the great work. Tampa tech

Thanks for sharing your knowledge. Not many folks want to teach anymore. It can ve fun to "beat the bugs" -- You da' man!!

Very informative ... Jam packed with info ... Thanks for sharing this crash course in flat screen repairing :)

All good legitimate videos from a credible technician !

Very good video. Looks like easier fixes than the older TV were.

Good on you mate! This is just what I was looking for. Yay!

Again the best video about TV repair!

Thank you for the outstanding work you doing.

Thanks dude. Perfect. No bull, just the info I need. Nice. Keep up the good work.

This information is very helpful.

Thanks for this I have a Panasonic that had no picture so I just disconnected the long lead from the power board to the logic board (as your video) then re connected it and the TV is now working thanks!

thanks for the tutorial brader, friend from philippines

Thank you sir for the best information good explain Sir thank you very much Sir

thanks a lot i got a lot of knowledge from this vid. just fixed my LG 32ln5400 backlights.

GREAT SERIES, THNAKS

Very informative and simple diagnostics steps with using with using basic tools! Great video!

Very informative explanations and tutorial to aid the avid DIYer.

Great video, is going to help me repair my Samsung TV

Thanks for sharing your knowledge! Very helpful 👍

EXCELLENT VIDEOS 1 AND 2 THANK YOU

Great video. Thanks.

fantastic bro great and simple test case. congrats for video

good video, glad your video had no music, just info

Excellent!

Very interesting thank you Sir for the brief explanation that's to the points only

Helpful video thanks. April2017 I repaired a Techwood 55AO2SB 55"TV . Its remote led flashed, the remote was transmitting, but no picture. Not sure if sound was working as did not test that. Not a backlight led problem as could not see the MENU in dark room w flashlight shining on the screen. I think it was a 2015 model TV. Root case was one corner of the power supply board was broken / cracked. This where one of the screws attaches that PSU board to the TV chassis. This caused one important thin electrical track to be severed. I repaired with superglue and track repair wire ... green thin wire. I also repaired the earth contact using some wire and solder , this at same place as it was a poor earth due to the damage. TV worked correctly thereafter. Pcb design is poor/cheap and obviously the pcb material also poor quality for this to happen. TV picture etc seems quite good.. I am an electronic R&D and design eng. Hope this helps someone else.

Thank you

Thank you!!!

Thanks!

Good work.keep it on

Great video thank you:)

Thanks for sharing. .

Thank you so much...

Good Video. Informative.

THANKS

It's great video

hay this video of lcd repair is to good so I liked !

Very good sir I learned alot from you sir

THANK YOU!!!!!!

Great guy!.....Wonderful personality, explains everything very professional ...thumbs up for this guy everyone. ...God bless you Tampatec!

Very Helpful 😮

very nice thanks alot

I like so much your video, look like very helpful

Very good work

Thanks alot mate!you are best tv man on youtube. 1 question for you how do we test leds on lg power board it has + and - on the connection not same samsung it says led- & led+ how do we test it?do we tet that with multimeter?thanks

big thumbs up , me and my lg led tv waiting to the next vid...

This was very good 👍🏿👍🏿

Oh man, you are the best! I have the exact same model as in the video and have been suspicious the LED lines were the fault, but had no idea how to diagnostically confirm until this video. Thank you!

Great video, easy to follow if I had the space and tools. Can you please tell me which parts of the LG TV are saleable so I can properly take it apart and garner a sale or two to assuage my misery

Good job.

I love you work bro

Love the video. Makes me want to get parts and tinker with tv. My tv blinks 14 to 15 times. Sorry. No picture but sound

Good job...

very good

Black screen problem started months ago. After much off/on and waiting time, some success with restoring screen bright. But, now this off/on trial stuff no longer successful. So, I guesed something was overheating in there somewhere, so I located a small fan to cool the right back side of the set. Lo and behold, after a short time, the screen came on and stayed on. This worked continuously 80% of the time, but never failed to start if you had patience. Also, once on and left on overnight, etc., screen brightness time improved, sometimes even after the fan was off! This might be useful for someone, but sometimes a new set looked very tempting!!

keep up great work next time i will ask same

Very helpful

TQ for info

Fix it thanks.

merci

I extremely like your tutorial my 43 inch Toshiba works great NOW

Very informative 👏 👌 👍 😀 new sub! I'm currently going thru the exact same problem 😪

A great channel. I have a 2012 LG NO PICTURE BUT SOUND?

ty

Thanks you very much?

nice video thnk soo much .........

thanks u

I'm looking at a HiSense 50H5G but this set of videos helped out a lot. especially the meter views. Do you know where block diagrams and-or schematics for tvs can be found? Know of any practical Trouble Shooting guides can be found? Really helpful video.

great video

Very informative thank you. I think my backlight inverter board is bad, but I didnt see you say anything about sound so Ill ask. On mine, the tv turns on and a buzzing comes out of the speakers. Has done this for years and after it warms up, you shut it off and turn it back on and all is good. Now you turn it on, buzzing still there, but picture goes black at 20 seconds every time. Weird thing is when the picture goes black, the buzzing stops. So I was assuming a transformer on the inverter board. See nothing with flashlight when black. Man are those boards hard to find in stock. Thanks again and great video!

I have learnt a lot from you sir , almost you videos makes me to back an expert on Plasma tv repair .We don't Know how much we can thank you ,but only God should give you more wisedom to save us all

You're the Maaaan!!!!

Great video bro keep it up

thax for the tutorials,,they've been of great help to me,,keep it up tempatec.

Buen video ..esperamos la part.2.. saludos ...

nice info

@6:04 this led tester is very essential service tool. Very easy to trouble shoot any led.

TAMPATEC YOU ARE AWESOME!! Thanks for all your great work! I have a question related to your video...I have the VIZIO e470i-A0 that has the same symptoms - you can see the picture with a flashlight. When I check the voltage on the 4 pins of the LED output connector as shown around 5:22 on your video, I get pin-1 = 0 volts, pin-2 = 65v, pin-3 = 2v and pin-4 = 65v. I don't get "0", 100v" or "120v" as you indicated as possibilities in the video - what might be wrong with this - the power board or the LED strips or something else?

thanks broo

Nice video

RCA led40c45rq has back light u sent logic & PS no change Led strips read 33v with unit off led two wire input reads 77.9 pwr on reads 169.6 back lights stay on for ten min then set shuts Down . T-con test point voltages all class ok Thanks Larry

Good

Nice video bro ngifunde okuningi

T Judice: Thank you for the extremely informative videos on TV repair. Specifically, issues with TVs having sound, but no picture. I have an RCA 55" LED TV LED55c55r120q with sound but no video. I can see the menu image using the flashlight technique, so it is some kind of backlight problem. Main power board shows 5V sb power, and 12V when powered on. The BL voltage on main power board connector coming back from logic board shows 5V. (NOT 3.2, is this a problem?). I unplugged the LED power cable from the main board to get the actual voltage reading at the board. Both LED+ pins are reading 223V(with connector going to LED strips unplugged). With LED wire connector plugged in, the voltage on the LED+ pins starts out high, and quickly dissipates down to 0. I purchased new power board, but same behavior. Can you direct me what to test from here?

nice bro.... ♥️♥️♥️

Good sir good make more videos about white strips.

I owe you a beer. And I’m taking you to your favorite strip bar. Who needs a service manual with you around. I subscribe to your channel!

hiii Jimmy, I wish to need to known about 32" lg led TV's output volt for led back light pannel.... plz help me as soon as possible THANKING YOU....

Nice bro

love your vids they have helped me lots of times i have an Hitachi 48hk6t64u and back lights are blue can i repair with lamp beads and if so what voltage should they be please

Very.Good video thanks!!! hey tampatec i have UN55F6400AFXZA TV SOUND BUT NO PINTURE ANY SUGGESTIONS PLEASE

nice

Sir tell me pls my hisence 55" only shows few volts on the led conector so ho do i get the exact voltages wht cud b the wrong

Hi Tampa Tec great videos thank you. I am struggling with a Sony LCD tv with lamps not leds. The lamps are so hard to source. I have them come on then off. Power supply voltages are okay. Any thoughts greatly received. Not changed main or tcon boards as yet thank you