Watching tv and the screen just went black have tried turning off and on and unplugging audio still works fine I can change channels and hear different audio but no pictures through cable component or hdmi.
I have a 65" LG, OLED, 4K Ultra HD, Smart TV. I have had this TV for 1 month. The screen just went blank / black but everything else was working on it.... sound, apps pages, etc. but I could not get a video or satellite image at all. I decided to try resetting the TV to it's original setting and it worked. I have a picture again. It is a complete pain as I now have to go back and set everything up again. But at least I can watch the TV again. Hope this helps some or all of you!!!
Comentarios:
Genius!! This fix worked!!
- de pkrohan
How do you reset the settings if you can't see anything on screen? Is there a manual reset that can be accessed through the control buttons? What is the process used to access the manual reset?
- de D. Mark French
When my TV does this I can only "not see" a broadcast picture but everything else shows up. I just click on my remote to open up settings on my tv. That all shows up. I have had to reset my TV 2 times now to get the picture back. The last time I had it happen, I did not have time to mess with it so I just turned it off. The next morning when I turned the TV back on it was all working again,
This sort of makes me wonder if maybe something in the TV is over heating causing the problem??? Once it has time to cool down it goes back to working as normal??? I have no clue. But, the screen has gone black for video, satellite or broadcast on 3 different occasions not and I have been able to get it back each time.
D. Mark French, if you are having the same problem I am.... You should still be able to use your remote to navigate thru you settings for the TV...... If not, I am sorry and wish you luck!! This is all so frustrating!
- de kmisak
i think i'm having the same problem as you with my LG. Just the "broadcast" image was not working, as well as everytime i tried to open a video file on my USB pen. It seemed that the screen went blank only when some kind of video format was playing. The problem is not related to the backlight, because i can see it is working fine. I tried to do a factory reset to fix it, but now i can't get past the 3rd stage of the configuration process - I select the language, then i select the country, then it asks which environment to use - "home" or "store". When i choose "home", it goes blank... i don't know what to do, I already opened the TV and i didn't see anything out of the usual.
- de nsa
- de ithelpdesk 720
ctruman72,
I don't know which model you have but if you hold a flashlight to the screen do you see movement and images? If you do the backlight has failed. If you do not see images you may have a main control board problem. Did the service tech tell you which board? You may find the board on the internet. Use the tv make and model along with the board part number with a google search.
Comentarios:
How do I fix the blacklight?
- de Darlene
Hi Darlene,
How did you diagnosed the error? If you hold a flashlight to the screen, do you seen any pictures?
- de Pierre
As stated above if you hold a light to it and you still see pictures you have a bad backlight inverter (think of it as a starter for the old style floresent lights.
As stated above just find model and serial # and google parts there are several online places that offer boards inverters ECT.
Just fyi if ya find bad capacitor or such I usually go up by 5 so that's just my 2 cents
- de jamie sturm
I have never had a broken TV before--LCD or any other type. But the flashlight diagnosis worked--I could see the images. Thank you--I'll look into that rather than replacing it or making an expensive repair call.
- de dojnd
How do I get the back light fix... I can see images with the help of flashlight
- de ani etukudo
More than likely you have 1 or more LED's that are shorted out. When this happens the LED strip will draw too many amps and the board will shut down all LED lights as an over-amp precaution. This happened to my 50" LG and I was able to fix it at no cost by removing that particular LED strip from the circuit. It is not a difficult repair, but does require someone to pretty much completely disassemble the TV. If you want to attempt the repair, here is a Youtube video that provides some instructions,
https://www.youtube.com/watch?v=YgaL6X6e...
You can replace the strip that is bad for about $50 or just remove it from the circuit. If you just have one bad strip, you probably won't notice any change in picture quality after it is removed. Be careful if you disassemble the TV. Even if it is unplugged it will still have capacitors that carry a high charge of voltage.
Comentarios:
It's the led backlight has gone bad. Company will ask to change the entire panel assembly , for huge amount of money. Or ask to buy a Annual maintenance contract. Still expensive. Simply go to AliExpress website, buy led backlight bars and replace them. Or u can also buy individual LEDs there, and reflow/hot air solder it yourself. Search for LG Innotek LEDs.
- de Utsav
Hello, I Have a Starvision 32 inches TV screen without pictures but only sound..what is the problem and how can I find this problem. Can someone help me?
- de Tom Yalamen
Had a 42 “ LG and after about 18 months screen would go black but sound was still on , rang LG but wouldn’t do anything as it was out of warranty. After 5 years of messing around with it (turning it off and on ) decided to buy a 50” Panasonic which is brilliant ,in the meantime I thought I would take the back off the LG and give it a good clean and push all the connections on securely and tighten all screws ( some of which were quite loose ) we now have the LG on the kitchen wall and it has not gone off at all and that’s after 1 week , it worked for me maybe it could work for you ,good luck
Press volume down key and power button together simultaneously switch OFF main plug and then put it ON again
That's it your TV is on.
I did this with my TV and seriously it works.
Comentarios:
This worked straight away! Very easy solution
- de Bryan Green
wow this did work thank you! i'm seeing videos and comments about opening it up and soldering things, etc. just a waste of time you had a simple solution i was looking for. now i can see the screen i'm changing setting to standard and lowering the backlight to preserve it.
- de Mr. Rogers
Can you please explain what you mean? I know what you meant by holding down the volume button and the power button but I am unclear of the next step. Thanks so much for your help.
- de Brian Travers
Me too! The volume and power button helped some but not 100%, I don't understand the next step. Do I unplug the tv? Help!
- de Stephanie Lardner
LG seems to have a problem with backlight, you'll feel when it goes black on screen the back of the tv is super hot.
SOLUTION: Change the picture mode to “Standard", then make sure that your backlight setting is at it lowest.
That should do the trick, and it will never switch off, if this also fails then replace the backlight.
Comentarios:
The back of my Tv isn’t hot at all, I turned it on and after about 10 minutes, the screen just turned black. I have trying turning it off and on. Unplugging it and plugging it back it. I can still hear audio but it is very frustrating not being able to see anything other than a black screen
- de Izzy
This worked for me. The TV was glitching and going black so stayed on long enough to change the setting and now it’s workong fine. There’s no option for backlight setting though
- de jessica_bills
Well not sure of this will work for every one but my lg t.v just went black when my son turned it on to play x box. I looked online every one was saying buy some chip. I just unplugged the power cord from my t.v and plugged it back in and it turned right on.
Think smarter not harder
Most of the smart TV'S comes with blinking (LED) codes, but meaning of these blinking codes differs from manufacturers to manufacturers. Just Google it (manufacturer / brand / model) and you may find the problem. Most probably this problem is related to power supply (bulged capacitor).
It Happened With Me too…
Just Open Your Tv’s Back and Clean the Board The where all parts are plugged with a Nail Polish Remover.
And it’s Done.
Screen black but sound on
Rep: 1
Have the same problem. When switch on the tv could get audio. But panel show only black screen for video and also no tv menu is seen so could not do resetting things. Panel shows usual blue light for ON. Once able to locate possible problem then it could be easy to isolate and fix the problem.
Comentarios:
espotter 2010 okay so you got it fixed? You are looking for a fix? What have you checked? Make and model or your TV?
- de oldturkey03
This could be due to back light problem. Back light problem is due to either failed back light power supply or back light itself. Back light fails when one or more LED fails in one or more row.
Depending upon model / brand power supply could be separate or built in with main power board.
- de Jignesh Jani
Rep: 1
I would probably say backlight problem, check with a torch and see if you can see an image on the screen when it’s on.. google tv led backlight failure.. it can be repaired but needs to be diagnosed first.
Rep: 1
It's most likely a time delay fuse. You can buy a new one usually at a hobby store for less than $5. But make sure you know how to use a sodering gun and remove the burnt out one without damaging anything then add the new fuse. Make sure you have the tv unplugged when doing this.
Comentarios:
I have a brand new 50inch scanfrost TV,after power on the TV only display brand LOGO, no picture display and audio effect., pls what can l do in this issue
- de kunle_esho
Based on the symptom most probably it is a problem of the backlight. In order to confirm this, you need to do the torch (flashlight) test. In the darkroom try to see the screen with torchlight if you are able to ‘see' the faint video, this could be the problem of the backlight. Backlight fails either due to power supply failure or one or more LED damaged in one or more strip. Replacing backlight needs the help of a professional if you are not sure what you are doing.
If you don't see the faint video, this could be the problem of the t-con board. Replacing the t-con board is relatively easy.
Rep: 1
I had a similar issue. LG TV went blank but when I shine a flashlight on the screen I could see shadows. when I first turn the tv on I could see the LG sign and then the tv goes blank. Later I found out that 2 of the 3 backlight- strips went bad. I assume if one strip goes bad the power board inside the tv will detect that, and cut the power off to all the light stips.
It could also be that the power board is not sending voltage to the backlight. if you have a voltmeter, you could easily check the power output on the main power board. if you don’t have output voltage, then your board is bad. I found used one for $30 on Amazon. if you do have output voltage then your backlight is probably bad. backlights are cheap and can be easily replaced.
when attempting a repair, make sure that you don’t damage the front screen as it is fragile and can be easily damaged.
find parts using the TV’s model number and the number of the part that you want to replace. part numbers can be found on the actual parts.
Comentarios:
Can my 55inch LG TV that have sound but
black screen be sold for parts
And my 65 inch Samsung TV that have lines
and no sound be sold for parts
- de Bobby Williams
Rep: 1
i recently had this problem. i unplugged it and waited . once it did come back on i changed setting from vivid to standard and never had the problem again. i think to much of the brightness of the screen kind of temporarily blew it out.
Rep: 1
StarVision 40” Led TV Has sound but NO Video. black screen only. Tried switching Off for a while and switched back On but no success. please help
You may try booting in safe mode to use the default settings and basic drivers to avoid the issue.
Or go to this page to troubleshoot this error: https://support.microsoft.com/en-ph/help...
Rep: 1
I have the same problem.
with the screen black and can see and hear everything. But I took it to a different country soon as I turned it on it just went black. I can see in darkness with a light.
if anyone can help me I would be very appreciative thanks
Rep: 1
We did all that it still goes to black out black light so yea maby its time to get a new one and get rid of the new one
Rep: 1
Screen went black sound still on
Screen went black sound still works
Rep: 1
Screen went black volume still eorks
Rep: 1
Audio Sound only Comming but Video not comming How Set
Comentarios:
This is a very common problem with LED TVs. Over the period of time LED (Light Emitting Diod) in LED TVs are prone to fail. When this happens you can hear only audio. The screen remains black or blank. In this symptom, one or more LED is either short, open or burnt in one or more strip. It is NOT advisable to take this task if you are not sure what you are doing. This repair requires you to disassemble your TV completely. Before attempting you need to be sure that this IS a problem of the backlight as the screen goes black for various reasons. In order to confirm this flash test is required. In a dark room switch on the TV with signal input. Flash a torch on the screen, you should able to see the faint picture in all over the screen (corner to corner)
- de Jignesh Jani
Rep: 1
lg 42la860w I can only hear the sound of the TV and the screen is gray
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1 -12--17 Just bought lg 65" super uhd tv. 2 days old. Screen goes black. Returned for a new one two weeks later same thing returning this one also thank God it happen within the 30 days
- de Will
No picture but has a sound on tv
- de jahjah1231
TV screen goes black when watching Netflix or YouTube..never happen when watching regular TV or DVD...what causes that?
- de Chantelle Levy
this bullshit of a tv i jus switched it on now and the screen is jus black not showing anything but the sound is perfect,what is that?? where can i find someone to fix it
- de Veli Ndumiso Vodloza
Veli Ndumiso Vodloza instead of ranting on here, it might actually be better if you ask your own question instead of making a comment to a 2 year old question. Go on here https://www.ifixit.com/Answers/Ask and ask a proper question. Give us the make and model of your TV and describe what is wrong with it. Let us also know if anything happened to it and what you have tried to fix it.
- de oldturkey03
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