3 Ways to Troubleshoot LED LCD TV with a Black Screen, TV repair part 1
ฝัง
- เผยแพร่เมื่อ 17 ม.ค. 2020
- TV tech repairman TampaTec Paul shows how to fix a TV not working with black screen no picture no video but has audio and volume sounds OK, follow these service steps and use Television repair tools to get your TV to turn on again with a bright picture.
TV repair parts TV boards and backlight LED strips get them here www.shopjimmy.com/tvs/tv-led-... working on LG 42LN5400-UA
part 2 Black TV screen repair- • TV repair for black sc...
backlight tester- www.shopjimmy.com/tools/
Shopjimmy channel here- / shopjimmy
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#TVtech #TVrepair #blackscreen #Tampatec - แนวปฏิบัติและการใช้ชีวิต
part 2 LG TV repair th-cam.com/video/LxKSmTJy96A/w-d-xo.html and part 3 LG update th-cam.com/video/NQLvqbtAriU/w-d-xo.html
backlight tester- www.shopjimmy.com/tools/
Hi
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 !!!!
TyRt)'yd
What is the name of this device and do Amazon sell it
@@mosesgbesiagbe4883 q
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.
Also maybe can add some conclusion summary at the end of your videos. That could be great
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!
Excellent info. I will have to keep that in mind since I occasionally fix TVs for friends and co-workers.
Thank you dude! Super helpful!
It really helped to diagnose the problem!!
Love any new gadget's that make life easier
great vids
The telephone torch led trick is a real good advise!
I think this is great video keeps me informed
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 TH-cam 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!
Best wishes for 2020! Greetz from Holland!
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..
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.
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
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?
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.
Thanks Jayson
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
I was able to diagnose, and repair, my television, by watching one of your videos! Thank you so much! 😘
Helen G. Pitts I have managed to get scammed lol
@@gazzler1004 Her first 5 figure paycheck... she was counting the digits after the decimal.
Thank you wish me luck I’m learning slowly
Great video, very informative. Looking forward to watching Part 2. Big thumbs up mate :-)
Good job
Another great video. Thank you!
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.
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.
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?
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
Thank you!
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..?
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.
Great info
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👍🏻✌🏻
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?
Lol, I was wondering what U where doing when you turned the tv on, duuh I never thought about that. Good Video as always.
Hey there as always great videos. Just have one question is I am looking to purchase a modem for quick uploads and for gaming. I appreciate any help. Keep up the great work.
Thank you Very much , You are awesome ,Thanks for the wonderful videos !!!!!!!!!!!!++++++++++++
Hi love your videos my man,I have an issue where I brought an Astro mixamp for my PS4 slim,unfortunately it has no optical port,I have a tv with an optical port and in the settings for optical out it gives me 2 options,either pcm or compressed,have u any idea which would be best to use for the mixamp pls,also can it still provide 5.1surround or just 2.0 stereo?thankyou
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
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,
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.
Nice good job sir..
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😊😊😊😊😊
I love your vids bro
Hi there great channel, I have a question My Samsung 3d 49" tv has developed a purple smudge on the bottom right of the screen, will I need to replace the screen or is there a quick fix? Thanks in advance.
My LG smart tv screen when black and want to fix it myself, so I am watching your channel for help.
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!
Brilliant..
Do you have video lessons for TV PCB parts? How to test when TV is plugged in
i subscribed because I have an LCD TV that I use as a computer monitor and it has a few dark spots on the screen. You did a video on how to repair that issue and one day I will review it and give it a shot. Thanks btw.
What's model number? It can be a few bad LED lights in the backlight.
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.
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.
Tampa Tech do you know which tv type emits the least amount of blue light? ty
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!
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!
It's very common.
@@TampaTec The TV is only two years old, so I'm going to try and fix it.
@@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 ??
Plc make such videos, u m a ke them in very good way. 10q.
That was good tutorial when I was kid I used to collect tools and stuff nowadays I fix literally a lot of home stuff this video helped me to learn new skills good video keep it up :)
Thank you for this type of video ,I need videos for How to hold the screen, especially the large one, to avoid breakage.
I use suction cups but I'll make a video.
@@TampaTec thanks
Paul, você faz um trabalho excelente! Agora com as traduções eu espero que possamos alcançar mais pessoas.
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?
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?
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?
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?
Wow my Good frend nice 💗
Hi I'm new here for watching your videos vry nice all videos..🎆💞
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?
Helpful repair video 👍 I like it
Would love your help @tampatec. I have a Samsung un55ks800dfxza. It turns on (based on standby light and blacklight glow) but after a second or two the standby light and the backlight both go off for a couple seconds before they both turn back on for a few seconds and the cycle repeats. It seems like this would be a power issue but from some of my searches it sounds like a power issue would prevent me from getting standby lights at all. Could that indicate an issue with the backlights which is causing the tv to power down?
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?
I've had an element tv 50"for around four years I got it for 404$ tax and all did I get extremely lucky on my first LED or are they over all good TV's I bought it at Wal-Mart but I've never seen anyone else that has one or has had one. I like everything about it other then it's just a 60hz but anyway I was just curious if you knew anything about brand
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
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.
After watching this...I'd rather you do it. Do you have a facility in Tampa where you do repairs?
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?
Hope to have guts to do it myself;-)
Tnx for the info;-)
New subs here;-)
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.
hi bro! thanks for the video! i have a question, i have an hitachi 50hyt62u seems to be black light, because when i turn it on and i point with the flash i can see image, but when i put tv is like doesn't appear the same as you, is still black, so first i dont know what means that, maybe are diferent TVs i dont know what can be reason so also i dont know how check the sound. great if you can help me!
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
i have a 42 inch philips tv, (42pf9830/10) where the lcd blackout after a few min, looks like no screen, not just no backlight, though when i softly tap one of the coolingpads on one of the boards the screen comes back, and i did notice that if i mute the screen before it goes dark, and tap the cooling pad, the screen comes back without being muted, im guessing that makes me think i have a bad board or bad components on that board?
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.
This is the same issue my tv is going through… I think I will take it to the shop
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
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?
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.
Hi , do you have experience with LG? My lg 43uj634 has problem with hdmi ports. My tv has problem with recognize signal over tv, when I set source to 720p mostly work by if set 1080p or 4k mit working. On 720p sometimes I have to unplug from power and then works.
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
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 ?
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 ?
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?
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
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
Hi is there a way to find out the difference between these 2 boards as the look the same 6kt00301f1 and 6kt0030111
Very helpful. How about if there is no audio as well?
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)
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
So my tv will work fine on standard settings but once I try to go a little brighter it only last like 5 minutes and turns black you can see shadows of whatever it’s on the tv playing but it’s just no light do you think it’s my vizio Leds going out ? I would appreciate if you could help thank you
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
Hello, I am looking for TCON replacement for this model TCL 55P3CUS Any help? Thanks
New subscriber
Do you know how to remove the parental lock out codes from a Sanyo tv? I picked it and it works but several channels are locked out
I have a 42” led panny. First green blinking then on with white screen for 1sec, just like you describe as a flash. Then off and continues red blinking (1-pause-1-pause). This all seems to point to towards panel/led strips. However, I also disconnected the driver board to which the led strips are connected, and still the standby lights stays blinking red. How can that be, if disconnected then how come it is still blinking? I leaning towards faulty led strips, but logic seems to say otherwise. How to proceed? Thanks.
Having issues with my LG Tv. I’ve replaced the power supply, mother board, and led strips, and still get no picture... I’ve tried the flashlight test and see no picture on screen. Possible t-con board, or panel itself?
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
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.
For sure
Dear Tampatec, i have a Panasonic TX-P50GT30E died with 7 blinks red led, Do you have any suggestion for check?