3 Ways to Troubleshoot LED LCD TV with a Black Screen, TV repair part 1

[@TampaTec]

part 2 LG TV repair kzbin.info/www/bejne/gqmuhKCKf95sbKM and part 3 LG update kzbin.info/www/bejne/hIKvp6SYqaaln7c backlight tester- www.shopjimmy.com/tools/

[@mosesgbesiagbe4883]

Hi

[@stephenacheampong4133]

Hey Tampa Tec do you know what I should do if I cleaned out my ps4 but when I set it up and press the power button the blue light shows then the red light come s and turns it off. Pls help !!!!

[@hyneula]

TyRt)'yd

[@meciajackson4864]

What is the name of this device and do Amazon sell it

[@nickland5153]

@@mosesgbesiagbe4883 q

[@x.figaro7551]

I followed your videos. My TCL TV had a black screen. I bought the parts from ShopJimmy as you had recommended, and fixed it myself. all for about $60 total, including shipping . Thanks!!

[@TampaTec]

@@x.figaro7551 🎉 congrats 👍

[@kaitofujiwara9742]

This guy seriously needs more subscriber!! Thank you for keeping it as easy as possible for laymen amateurs like me to understand. Really appreciate the effort. In terms of information you have done well! Usually youtuber may use some humour and video editing skills to catch attentions.

[@kaitofujiwara9742]

Also maybe can add some conclusion summary at the end of your videos. That could be great

[@Elite_Fumbles101]

I'm here 2024. 774k subs. What a video!

[@janellewolves6729]

After much searching, i find the exact video for my issue. I have a ViewSonic 2835. Did the flash light thing saw there was images on the screen, exactly what I thought it was too. So now to watch more from you!

[@char_B]

I was able to diagnose, and repair, my television, by watching one of your videos! Thank you so much! 😘

[@gazzler1004]

Helen G. Pitts I have managed to get scammed lol

[@char_B]

@@gazzler1004 Her first 5 figure paycheck... she was counting the digits after the decimal.

[@richardboyd4477]

Thank you wish me luck I’m learning slowly

[@sabaartist6109]

Hello, I am from Pakistan. I have subscribed to your channel right now because I am facing the same problem with my LCD screen and I want to fix it you are really talented after watching your video I get to know what the problem is with my LCD so thanks a lot brother.

[@Mlaprades]

Yo man, it's been since probably 2012 when I contacted you about my sharp aquas 60-in TV with the lamp error. It took me about a month and about $75 for some LCD edge strips.. the TV is still going strong ever since

[@gtbuploads8155]

Thank you for your video, my Viano 55 in tv has the black screen with the sound, then after searching your tip to use the light on your phone shows that i can see the menu items on the screen, now it gives me a direction to try to fix this

[@Futureistixsoundz]

i have found tv's on the street and managed to fix them with minimal parts and work. I hope everyone takes something from your videos and not just throw there tvs away because people like me and you will come along and fix them within hours,

[@Futureistixsoundz]

and also if you cant fix it or replace the lcd then the parts can still be sold. and the lcd screen can be used a lighting.

[@tkd4]

I just repaired my LG plasma that had the click click won't power on problem. Was gonna try to solder a new cap on to the power board but there were none that were blown. After a month and a half without a tv I opened the back and sprayed all the boards with wd40 and it's worked perfectly for almost a month now

[@TampaTec]

Wd40 can start a fire it's flammable. I would try cap kit for your tv model. Clicking is commonly bad caps. Caps may look good but still be bad.

[@JefryAnsElt]

Good job

[@benassy69]

I have one question. why the TV is shutting down all the strips if only one goes bad?

[@ryanhall6157]

I've been a subscriber for several years. I've learned how to fix several things thanks to your awesome videos. I was wondering if you can make a video of how to fix a Nintendo switch that won't turn on?

[@jaysonvance594]

I stumbled across your channel looking up tips on soldering. So far I have enjoyed your channel and I hope if my tv goes out it's a simple fix or you have a video on that brand showing what my problem is. Keep it up buudy.

[@TampaTec]

Thanks Jayson

[@lothianmcadam1]

Hiya Paul. I presume you can test the LED strips using a DC bench power supply rather than the doodad you demonstrate in this video... but what voltage do you set a DC bench power supply to?

[@josephvillanueva5007]

thank you sir for the information you gave to me its about right time to fix my led tv TCL at home and to my brother's samsung tv same trouble hoping for more videos to learn i'm also a electronic technician here in philippines sir..

[@TheTico205]

you forced voltage to the LED strips through the main cable, so does that mean the power supply/backlight driver is good? is it because one black light strip causes the rest to shot down / close circuit?

[@grahammurff4580]

Would this help with a tv that’s blinking?

[@billahlstrom2040]

Excellent info. I will have to keep that in mind since I occasionally fix TVs for friends and co-workers.

[@khalemfortuna]

hi TampaTec, i was brought to this channel while searching for a solution to my tv's problem. i have a samsung hdtv curved tv. my tv channels were received through a cable provider connected via coax. everything seems to be working fine at first until one time, there was no audio to every channel, display was fine but the sound is either silence or static noise. i can confirm that my tv speakers are working fine because it does have sound when connected to the internet. my theories are either; the coaxial cable/wire are damaged OR my coaxial receiver is. as i said, i was brought here because of one of your videos where you suggested the hard reset and reading through the comments, i could say that it worked for most people. i have already tried it but it didn't help. hoping you could give a solution to this problem or at least suggest things to do to diagnose what is wrong and how to fix my tv.. thanks😊😊😊😊😊

[@bigdog8882]

Lol, I was wondering what U where doing when you turned the tv on, duuh I never thought about that. Good Video as always.

[@rafaelmanatac8399]

Do you have video lessons for TV PCB parts? How to test when TV is plugged in

[@vinceparks100]

i have a lg 32ln5100 that has this same issue and i need your help to fix it i need to see the next video or what i need to change in the tv.

[@TampaTec]

Video will be uploaded this week.

[@skinkie]

The telephone torch led trick is a real good advise!

[@stockmarketwithtishant5315]

It really helped to diagnose the problem!!

[@hansvonstetten3236]

saw a few of your vids...very clear and concise. my lg 55 inch comes on fine bu[ af[er a few mins s[ar[s flickering, if I don´[ [urn i[ off i[ even[ually goes black. any ideas? only a couple of years old. [hanks so much for any help you can give me!

[@elvsrbad2]

Since you asked in the video for responses and I don't see many, Im a subscriber from when you did the contest with the other KZbin repair channels. I just enjoy watching you fix stuff, it's interesting and entertaining and you do a good job at it. Thanks for making great content!

[@drerey]

After watching this...I'd rather you do it. Do you have a facility in Tampa where you do repairs?

[@paulmcwilliams1709]

Very informative video. I have a Samsung 32" TV with a black screen and I'm pretty sure the backlights are to blame. Thanks for making these videos!

[@TampaTec]

It's very common.

[@paulmcwilliams1709]

@@TampaTec The TV is only two years old, so I'm going to try and fix it.

[@pradeepkumar-zo8rt]

​@@TampaTecWhat is the fix. I have the exact same situation where I can hear sounds and see pixels with a flashlight. What is the fix for it please ??

[@zierlyn]

So I saw this video pop up on my feed but hadn't gotten around to watching it yet. I saw the thumbnail and thought "oh, that's a clever way to navigate your TV if the backlight goes out." Literally 20 minutes ago the backlight of my TV went out. Still had audio playing, so I pulled out my phone and sure enough I could see the video in the area my phone lit up. Would I have thought to do this without seeing your video (thumbnail)? Who knows, but what kind of timing is that?! Just finished watching part 1, and you can believe I'm now itching for part 2.

[@osamak8315]

Great video but I am not sure i understand well. Suppose all the lights went on when u connect the LED tester. Wouldn't that indicate that the lights are ok and something else is not OK? what would it be? PS. Audio is fine and so is the rest of the functions (app selection, input selection, etc)

[@comfortnehemsmubanga6094]

Very helpful. How about if there is no audio as well?

[@ehababumoailish6574]

Thanks for this but my TV has black screen and no light till turn off room light and use my phone flashlight and when select TV no sound !! Is it something wrong with board or backlight only?

[@sunshine2166]

I would like to ask a question about my Samsung 72inches ?..There are darkness at the bottom of screen..with a haze of blackdots. or I can send you a pic... Thank you

[@char_B]

I'd like to see the response, if any.

[@TampaTec]

Black pixels or dark spots? Black pixels is LCD panel but Dark spots can be bad LEDs in the backlight.

[@sunshine2166]

ok..Thank You..I will see if you have a video for this too...

[@horacecampbell3029]

My LG smart tv screen when black and want to fix it myself, so I am watching your channel for help.

[@blackdotkiller1]

Love any new gadget's that make life easier great vids

[@dericyong6533]

Hi. I’ve enjoyed all yr videos about diy repairs to save money. I recently have a full HD LG oled that will power on for only 10s before shutting down. I’ve changed the t-con board but it’s still the same. What else can I explore?

[@katherine-er5hi]

Does this fix work for computer screens? I purchased a screen and it looks as if it cracked on the inside but instead of the damage being on one side the whole screen is dark, is that fixable?

[@Mymatevince]

Great video, very informative. Looking forward to watching Part 2. Big thumbs up mate :-)

[@diego37arce]

Had purple hue on my tv, changed the LEDS and went to plug tv to test the new lights, but they’re very dim unless I touch them, then they somewhat brighten up. Tried the old leds, and same thing. Can you please help me out?

[@CHABBO]

Hey! Just found your channel. Great troubleshooting tips. I have my LG 42LB5610 LED TV at the moment which works for about 15+ mins and then the LED back light turns off completely. That trick holding a phones light to see the image was good. I can see a clear image hidden in the darkness! Maybe I'm not getting the right power to the LED lights..?

[@LongIslandInstallations]

We've been following each other and chatting for years. We do the same thing in the AV field and that's what drew me to you, P-dog. We're officially in the AV brotherhood. Next time I'm in Florida, I'm reaching out to you and we're grabbing a beer.

[@TampaTec]

For sure

[@abdallahelectronic19]

Thank you for this type of video ,I need videos for How to hold the screen, especially the large one, to avoid breakage.

[@TampaTec]

I use suction cups but I'll make a video.

[@abdallahelectronic19]

@@TampaTec thanks

[@alexsantana4247]

Question I have a 3 year old led tv and the sound works but it has no picture. It has backlight but it’s a blank black screen any advice. It’s a 75 inch Hisense thanks

[@BrianB2579]

I would make a jig for the meter probes because by plugging it into the female side you expand the contacts which in turn won't make contact when the plug is plugged back in.... I would check if there is output voltage from the PSU to the LEDs.... But everyone has different ideas to repairs.

[@monareese5307]

I think this is great video keeps me informed

[@michanaftulin3751]

Thank you dude! Super helpful!

[@JGolladay1]

I have a Samsung UN40F5500AFXSA and i have bought all new Backlights for the model and replaced them, but when i turn the tv on all of the strips work except the top 3 strips, what can be causing this problem? Thanks Jim

[@scubadaddy3739]

i don’t understand why they went out all of a sudden yesterday night the screen was perfectly fine, and when i turn on the tv the Roku sign and red back ground shows perfectly for like a second then goes completely dark but i can hear me moving it with the controller

[@sathanas420]

lightbulbs or in this case leds go out randomly

[@joshuaperkins4567]

Same

[@snipiechackie6919]

Me is doing the same how mach to fix

[@kinggub1869]

Me too

[@kinggub1869]

It shows up then bam goes out

[@pblnlpalu]

Best wishes for 2020! Greetz from Holland!

[@dominicragnanese6381]

hey love your videos,i have a vizio led,it had no pic,i found bad power supply solder joints ,fixed them ,got a pic now only thing is i have a lg black verticle bar in the middle of the screen ,is this the panel

[@daniellazer3246]

I got a toshiba regza 46ru530u with a issue similar .....where I power the tv on and the screen flashes where I can see the picture and it goes black ... How can I contact you ???

[@mongohd9611]

I have a 2014 LG LCD/LED tv, model 65UB9500, the screen is black with sound but only with the antenna connection, the hdmi connections all work fine. I use the antenna connection, any thoughts?

[@jesmimi4126]

Hello, I am looking for TCON replacement for this model TCL 55P3CUS Any help? Thanks

[@sandrastamos2988]

Dear TempaTec, thanks for your video on resetting my sharp aquos smart TV. Have done reset trying different ways you outline. However, still showing a yellow K error code and even though I retuned channels few times it doesn’t retain. Is it just time to pack it in and get a new tv? (This one is only 3 yrs old). I welcome your thoughts please.

[@allenshearer]

Insignia model # NS-39E480A13. Has sound no picture. Back lights work. Screen isn't black lights up a little. Replaced T-Con board no change. Replaced Main board no change. Any ideas ?

[@DizzzyKipper]

You forgot the link for the led tester. :(

[@darrenv9964]

DizzzyKipper I was looking for this as well. Am curious to know what the cost would be.

[@urbbs09]

Same

[@TampaTec]

www.shopjimmy.com/tools/ :)

[@lany_07gaming]

I have a next book tablet and won't on but it's charging, may I ask what to do. I can't go to electronics repair shop because it's so expensive here in Philippines. Nice video.

[@TampaTec]

I had a tablet with the same issue, it was a loose ribbon cable connection inside.

[@gregkeeganbushbuildsandhac9306]

My LG has no external controls besides the on button. Can I still do this using only a remote?

[@lockaby1]

i jus bought a new vizio because mine done the same thing think i will try to fix it just to see if i can

[@arizvela1]

I have a Samsung tv that has only 2 hdmi imputs. I have a Bose 700 sound bar, which connects to tv with an arc cable. Will this box work for me? I would like to connect a Blu-ray player and 1 retro nintendo, and an xbox which all use hdmi

[@morgan18821]

Have a LG tv that has a grey fuzzy screen when hdmi is on, when menus screen is on it is normal no fuzz. Any idea, love your videos, new subscriber👍🏻✌🏻

[@christiannielsen3863]

What about the other two black and white wires to the led? were they not suppose to have power also? thumbs up, although the video didnt have to be that long i think to deliver the message. Thanks again.

[@TampaTec]

Ok I'll show more in the part 2 video.

[@joycedye3815]

I have a TCL roku with no power,does that mean I need to replace the mother board?

[@PAUL-1961.]

Hi is there a way to find out the difference between these 2 boards as the look the same 6kt00301f1 and 6kt0030111

[@glenntrimanez1511]

Hi, I’m starting to like electronics repairs, my first project was a power supply of Wifi Samsung surround, I was trying to figure out what went wrong, When I checked the the connection inside the circuitboard the one with small 7 wirings connected to the mainboard, with 12v, 5v, ground, 3.5v, 3.v and ground, the reading was fluctuating and not steady, what would I check for this problem, thank you.

[@isabellagarcia2023]

Does anyone know if it makes any difference if you can change input using the remote but not using the buttons on the tv itself?

[@mikewood4658]

I replaced the lamp in my Samsung s 5086w it worked fine for about a year. It started cutting of every now and then but would comeback on when restarted. Now it ic untying off after being on for around five minutes. All three lights on front flash. It will cut back on. But want stay on but about five minutes. I have head a sizzling sound sometimes before it cuts off now. Any suggestions. I just hate to let it whip me

[@roimark358]

Sorry sir, just a out-of-topic quick question, in my testing/checking MOSFETs using Multi-meter, when the gate is charged, why some MOSFETs (N-channel & P-channel), the drain to source let us say 0.002 or less my meter reads, others starts with more higher like 0.435 and running up as fast as a second or half a second until showing infinite? Discharged test is working (no reading on drain to source). What does it mean? Does all MOSFETs behave like that?

[@lourethadefreitas6178]

Hello. I have a Hisense smart and the lower half of the screan the picture is jumping . What could be the problem

[@stephencarter1849]

Hi, I replaced a main board on M3D460SR vizio tv that lost color. I got the new/used board in. I have color and tv works from the apps and antenna, but when I plug in my ps3, home theater or cable box in the HDMI, the screen is just black. Goes from no signal, say 1080p in the corner, but is black. When I hook my laptop up through it. I can get that picture to come up fine.

[@chriscox8067]

hi i have a samsung led backlit tv and it died thought it was the pcb replaced it and still nothing but if i unplug the cable for the led strips all the leds on the other boards light up so am i correct in asuming that i should replace the led strips

[@TheBlackonx]

I got a Vizio, LED, 4K....I get no pic or sound. My power light comes on, fades out and lights up again 5-10 minutes later. I t keeps doing this and won't stop no matter what, so I have unplug it. My guess is power board. What do you think?

[@MeMe-uq4lh]

Have a Sharp AQUOS LC-30HV4U. Works great, incredible sound. Had to update my Roku but I need to convert to HDMI apparently. Do you know how/if I can do this? Cheers

[@chicagokarachi123]

Tv and soundbar without Earc. Unable to get Atmos. Any solution? Its LG oled c8pua and lg skc9 soundbar. Thanks.

[@rustygear9370]

Hi, I don't know if you give advice in comments but I will try mu luck anyway: I have an LG 3D TV 42" that stopped working But stopped I mean, it responds to remote by turning on, standby LED turns on/off normally, there is backlight as the screen is very slightly brighter than off black, and nothing happens further (Not even LOGO showing).It did it once but recovered by switching on/off (like windows...), I had an external HDD plugged with no external power that I suspect to be the cause, it still works but not the TV which did not recover from its last black screen.Any help is appreciated.

[@TampaTec]

If you have a black light glow in the TV but no picture that can be bad tcon board or main board. Get tv boards from shopjimmy.com or electropartsonline.com

[@rustygear9370]

Thank you. I'll check that

[@orionmec]

Dear TampaTech... I have a Westinghouse TV I think 43 or so... It seems to work fine, then after watching for a while the screen goes blank for about 5-10 seconds then comes back on... a few minutes later it repeats, and repeats. Sound continues. Do you have any Ideas?

[@hueso1219]

Hi, Tampatec I'm have LG 42PG20-UA TV only change channels with remote but take about 40 seconds to receiver the message from remote each time try to used . Have idea what wrong with . Thanks

[@michaelying3411]

I have 55" LG TV. When it powered on, the splash screen displayed for a few seconds and the screen goes dark. Visual and onboard check of all capacitors showed no defect and within 10% of values. LED+ voltage check: started with 74V and screen working, then it dropped to 49V after a few seconds and the screen went dark. Also, an amber led is blinking 3 times on the power board. My guess is problem with the power board. What do you think?

[@kenfarley957]

Tampa Tech do you know which tv type emits the least amount of blue light? ty

[@massimosao6637]

Dear Tampatec, i have a Panasonic TX-P50GT30E died with 7 blinks red led, Do you have any suggestion for check?

[@sanketwawale1620]

I have hair TV. The TV shows picture for one day until we turn it off. But after turning off. It does not show pictures only sound comes. Again if we turn it on after 4 to 5 days it shows pictures until we turn it off. When we turn it on after long time some part of screen flicker for some time then it works fine. What may be problem.

[@AdrianaGarciaG1]

hi, my 50'' lg tv is damaged on the lcd screen where could i order the screen? can you help me in that Please, TY. I am in Pasadena Tx

[@GatsuRage]

Sup man! I've checked your playlists, vids but couldn't find anything about it... my samsung led 40" tv has this black spot towards the left side around the mid not the edge. Any tips how to fix it? or is it unfixable?

[@bobbyjohnson5637]

What does a orange flashing light on a toshiba regza indicate?

[@maxwebster7572]

Hi I watch your videos, trying to improve myself and have a question about a Samsung UN50H5203. The power board has a connector in the top RH corner for the LED which you are quite familiar with. I have power in 2 pins that are supposed to be ground with plug disconnected. Pins are 8 and 9 marked D- and possibly #3 S1-. Originally I checked the diodes as they are easy, there is a warm spot around them, no smoke but the2 pins which I think are shorted have a blue cap right below the connector which is c9010. Before I waste any more time and money the flashlight test does not show any images, I was told the tv had sound but can't get any myself and the power button seems funny but works with remote. I alredy changed main board. Voltages at LED connectors are about 30V (I don't have my digital meter here but old analog). Used boards are about $18 but I am scared about the no image. When I unplug the main I still do not get LED. Thanks for all the vids.

[@danman9017]

i have the same tv and same problem did you get it working?

[@constancejonas875]

the screen of my TV is blank TEDELEY sounds is good

[@musicmixerjm7171]

I have 42 inchs smart tv Sharp..issue Blackscreen what will i do to fix it.

[@waynefischer5263]

Hey great videos.very helpful to help me trouble shoot my 50 lg . Black screen. Just one question should the power going to the led strips go from 120v and slowly drop to hold at 78v. Doesn't seem right to me.

[@akhilkp]

my toshiba 47inch led tv showing black screen, have replaced the burnt led strips to new one but it fails to light up, it turns on sometimes, sometimes it wont just a flash and full dead ,at the time of backlit fail i checked the standby voltage read 5v but 12v and 13v are showing 0v and at the led strips voltage drops from 100v to 0v , at the time of lights up the led strips are getting 108v to 114 v and all the values from the t con were good. any idea whats the problem it has ?

[@mscir]

My 40" xbr9 is getting 15Vac 6Vdc to the 2 boards that attach to the screen (are these the backlight boards)? The boards are labeled 12V. Is that supposed to be 12VDC? Can you recommend component testing on the power board to fix this? Could this be due to the bad diode problem you mentioned in another video? When diodes go bad do they just blow up and open, or do they partially rectify and partially pass AC? Does the combination of ac and dc to these boards indicate that the main board is bad? And is it worth replacing, if it's supposed to supply 12Vdc with no AC is it possible that both of these boards are now blown as well?

[@kaypeace851]

IHi bro,I really appreciate your guidance on how to tackle any issues that may arise from lcd,smart tv.thanks. in addition to this I have problem in my 32inches lcd tv (scan frost) which I have find means to it.but one concerning is that I order for the control board ,it work but display Hkc on the screen fently and later black screen. Pls what could result to this.

[@bobbajosmith9851]

I'm new to this so any help is appreciated. TV has sound, no image, not even with torch on screen. I can change volume and settings so the tv receives power and hdmi input. So that means I have a T-con board issue right? So if I replace that it will work?

[@borisgf]

Hi, My VU led46k21 turns on and the LED standby light changes from Red to Blue. but as soon as the picture comes on, it goes blank but the standby light remains blue. Also, the brand is VU but the logo on the screen shows another manufacturer. What could the problem be. Thanks in advance

[@icandodad007]

I have a Philips tv where there’s a vertical Dark shadow (in what looks like 1 row of led lamps) on the left side of the screen. In all the led strip replacement videos I see the strips are horisontal, so if I assume that’s the case for my Philips as Well it seems unlikely that vertical row of leds would go out across multiple strips. Any idea where I should look for the error here? Like what could cause this, top-3 reasons or something? 😆 thanks for a great Channel!

[@deafthyADStealthHD]

Hey I have problem with a LGum75000pla when playing video or 4k video in fast scenes or when there's grass in the video it goes all blocky and pixelated then on less background it clears up again. Any tips thanks

[@vinceparks100]

is part two to this video out as yet thanks.

[@ernestsolis9189]

Hello I'm looking for a bit of help I'm new to all this any help would be appreciated I have a sharp lc-50lb261u with no picture but I can see the picture with a flashlight held up to the screen I was wondering what component I should go after first.

[@lindseyprather1705]

I have a Hisense Roku tv 58 in. Won’t connect to our Roku remote on our cell phones. But when I put the light to the tv you can sometimes see the logo. I can’t change the input because the only remote we have is our phones. Any idea what’s wrong with it. It’s only four or five years old.

[@ericmaldonado4557]

Do you repair them? And are you in Tampa?