Model: TCL Roku 49s405 Powers on, backlight present, no image. This quick test will help you determine if the backlights on your TV have failed. Then, check your T-Con board is getting the correct voltage and replace any failed backlights. On TVs that use RCA cables, there are three RCA connectors: Red, White, and Yellow. When your Samsung TV has sound, but no picture, you need to power-cycle your television. To fix it, you need to completely dismantle your TV. Until I remember Sometimes I use the LG remote app on my iPhone. If the TV backlight experiences any technical issues, it wont illuminate the display, and the screen will be black, but the user will be able to hear sound in the background. Unplug the power cord from the back of the TV. Hi, does anybody have an update on that topic? Ok, we have now come to the advanced part of troubleshooting. This is could be a bad lcd. Because life waits for no one, at LG USA we create consumer electronics, appliances and mobile devices that are designed to help you connect with those who matter most. Most Vizio TVs are repairable, which means you do not need special tools to open up the set and replace some components. The generation of the image means everything else is working properly. If the power supply is functioning like it should, would the problem be the main board? If it's working, you are done. Related Reading: How to Turn On Samsung TV Without Remote (EASILY) First, unplug and reconnect each HDMI cable at both ends, the TV end and at the other connected device. If you've never changed these, you definitely should. misar Posts: 2,661. Hold the power button down for 30 seconds after it is unplugged. You might even want to clean the contacts on the ribbon cables with a pencil eraser before reinserting them. I have LG 55LA6205. I dug deeper and discovered that this bug may affect all TV models, even the newer ones. . Does any menu or on screen display appear? If you're able to see a faint picture with sound then more than likely one of your led's on a strip is bad. Still same backlit but no image. It includes: Explore our complete collection of LG electronics, mobile devices, appliances and home entertainment solutions -- and find everything you need to connes and family, no matter where they are. DishAnywhere [ANSWERED] ErrorFixIt. Even before you test the various boards, just disconnecting each cable and reconnecting it can sometimes fix the problem. Be sure the laptop is set to output a resolution supported by the TV. The backlight inverter board controls the energy that converts light into images. Don't pull on them, lift them out. For issues with sound, refer to this audio troubleshooting guide. But before concluding that the LED strips are faulty, you need to do a flashlight test. Lets see how to replace the T-Con board. If this is not possible, thenthe set will require service. If it's working, you are done. May 25, 2022 by Lawrence Bonk is a copywriter with a decade of experience in the tech space, with columns appearing in Engadget, Huffington Post and CBS, among others. After 2 minutes have elapsed, plug in your TV. Melvin Francy. Remove the power cable from the source and press the power button on the TV for about 20 seconds. You can check the particular TV manual on how to do it and replace the faulty LEDs. Power cycle your LG TV Sometimes there may be more than one cable and this test becomes more difficult. Now press the menu button on the TV remote. I have a blackout on my Injoo 55 where there is no sound or picture. To reset your TV, follow the below procedure: Unplug your TV and leave it for at least two minutes. (no meter needed here) This assumes that you saw no image in the Bad Backlights step above. Any help, Feb 18, 2021 by Fix#2: Check the TV Input and all Componentsare ON, Smoke Detector Beeping Every 30 Seconds How To Fix [SOLVED], How To Fix Garbage Disposal Humming [SOLVED] ErrorFixIt, PS4 Randomly Turns Off How to Fix It? The screen is black, not grey. Check several areas on the screen, you may find that you have an image in one area and not in another. Jun 3, 2021 by Occasionally non-certified HDMI cables will cause problems in this way, it is best to use certified cables. If your TV uses HDMI cables, consider swapping them for new ones. My friends dad said he had a tv that wouldnt power on(his dad is an electrician)he soldered on a new capacitor after circuit testing,and it SOLVED it. If no backlights, the main board is the issue, replace it. Check the volume on your TV. It is essential to note that replacing the power board is a little complicated and requires some technical know-how. (window.BOOMR_mq=window.BOOMR_mq||[]).push(["addVar",{"rua.upush":"false","rua.cpush":"false","rua.upre":"false","rua.cpre":"false","rua.uprl":"false","rua.cprl":"false","rua.cprf":"false","rua.trans":"SJ-b9cbfc16-b0b0-4b60-9cb7-9ccaf8e35764","rua.cook":"false","rua.ims":"false","rua.ufprl":"false","rua.cfprl":"false","rua.isuxp":"false","rua.texp":"norulematch"}]); Im still using it now, Oct 16, 2021 by But these steps may not always work. Use a multimeter or any device to check if its working correctly or not. Check that your cables between devices, power, cable box, and auxiliary devices are tightly fastened. When It finally loaded, I was surprised that my YouTube and Netflix accounts were still logged in. You can also connect a PC to your TV via HDMI to know whether it is a fault in the TV hardware or an issue on the source device. You can check the power supply and the backlights in one swipe. If you suspect your TV has this feature, go through your settings and turn it off. I skipped many of the initial set up questions. Performing a manual update is another step you can take to eliminate a possible cause. The Time of the Year to Buy a TV, https://www.samsung.com/au/support/tv-audio-video/my-tv-has-audio-but-no-video/, https://support.elementelectronics.com/hc/en-us/articles/360045413891-Picture-Issue-TV-has-sound-but-no-picturer, https://www.youtube.com/watch?v=ysHfaQKI45M, https://www.technavio.com/report/smart-tv-market-industry-analysis. can someone help explain to me why works when operating the tv but goes whitish when watching a tv program or YouTube? Restart your TV unplugging all the cables. Do this for every device that is connected to your TV. If the supply board responsible for images fails, the user wont be able to view images but will still hear background sound. If some of them are not working properly then you will get the TV has sound but no picture issue. While the TV is unplugged, press and hold the power button for 30 seconds. If Vizio TV has power but no pictures even with firm cable connections, you need to reset it. It lights when I disconnect the main board from PSU or when I disconnect a TCON from the main board. If this swap fixes a problem, then get a replacement cable and install it. If it has a glow then the problem can be a loose tcon connection or bad tcon board. What is the farthest a TV antenna can reach? Thanks, Jun 10, 2021 by Also,please try to unplug it and then hold the power button for 15 seconds. It can be a serious hardware issue if your TV plays sound but displays no picture. If you aren't comfortable doing internal checks, you can have a technician check it out. Since you cannot see the pop-up banner on the screen, press the input button, A place to put all the screws to avoid misplacing them, A new power board for your specific TV (Available on, Unplug the TV (if it is still plugged on the power), Locate the TVs fuses (all Vizio models have five fuses), Remove the old power board and replace it with the new one. Unplug it, hold the power button down for 15 seconds, then plug your TV back in after waiting a further 30 minutes. Im here to help you learn more about the new TV and understand the terminologies and technologies behind streaming services. Even after doing the above steps you are still getting the black screen with sound issues, then it can be due to faulty COAX Cable or Faulty HDMI Cable. Too many are simply trying to capitalize on affiliate revenue. I know Best Buy geek squad does. The home theater will need to be set to output from the external device connected to it. Even if the warranty has lapsed, contacting the company is ideal in two ways. Make sure that ROKU or other similar components are switched ON. How can a power supply board failure lead to a black screen? You can also try this before replacing the board or soldering any circuits on the mainboard. It showed the LG no signal cube thing. If you have any damaged components that look this way, you should replace the board. For a better experience, please enable JavaScript in your browser before proceeding. If you tried the update and it had no effect, or wouldn't go, the last step is a factory reset. LG LED TV has backlight but no picture. Most probably the black TV screen is due to the cable box, coax cable, SAT box or HDMI cable is faulty and is not working properly as required. Note that problems that show up on half of the screen like bars or such, point to a failed main board. The screen will be completely back but you can hear the sound. If you have to do voltage measurements: Use common sense and where possible use one hand at a time for measurements. Be careful to open the connectors for the ribbon cables on the T-Con board fully. Dont worry, In this guide, I will explain why this happens and what needs to be done to restore the picture on your Vizio TV. As reported by numerous forums and Vizio users, sound without the picture on your Vizio TV is caused by a variety of reasons, ranging from minor system glitches to faulty cables and backlit issues. Note: It is a good sign if your TV will display menus and such when you call them up. Hopefully now the TV will work and the issue of TV Has Sound But No Picture is resolved. sheedstaa2013. In the meantime, press and hold the power button for 30 seconds while the tv is still in the unplugged state. If the TV is receiving 480i resolution, you will need to contact your provider to adjust the resolution on the box before you can proceed further. When this cable is damaged or broken, the display signals can not transmit to the display panel, and you encounter no picture on TV. Release the power button and reconnect the power cord. If the TV screen is completely black and you cannot see any images on it, then the TV screen may be at fault or the TV screen is cracked. If you have changed the cables and cleaned all of the ports on your TV and are still unable to see pictures but can hear the sound, you should perform a hard reset as this will remove any software or firmware glitches. This would require you to purchase both boards and then see which one fixes the problem or purchase them individually and see which one fixes the problem. Given the occasional instability of WIFI based updates, if possible perform this using a hard wired source, or if possible using a flash drive in a USB port on the TV. Keep holding while you release the 'power' button on the panel. How do I set up SmartCast on my Vizio TV? You may want to fix the TV remote if it is now working properly. When I turned it back on, it was as if I turned it on for the first time. Press and hold the 'Mute' button on your remote for 5 seconds to ensure your screen isn't muted. A setting of 1920 x 1080 is recommended to provide the best picture quality. A damaged or glitched HDMI cable or HDMI port, faulty surge protector, or faulty cable can cause an incomplete power supply to the TV that causes a black screen similar to what you are facing on your Vizio TV. However, if you are hearing your TV in another language that you are not used to, you should check out our guide for why is my TV in Spanish. No display indicates that the TV will require service. Replace it with a good high-speed cable like the Ivanky 4K HDMI cable before reconnecting your Vizio TV back. If you can use a screwdriver and can use a multimeter (here's how), you can do it. Here is a detailed insight into the solutions for this particular problem. If your LG TV has sound but no picture, you need to reset it. Wesley Collins. So check b connecting with each input connection. Game over? JavaScript is disabled. Our reviews and buyers guides are always either based on reviews weve done ourselves, or aggregated from trusted sources. To sum up, here are the steps you should take if your Vizio TV has a black or blank screen with sound: Hundreds of people visit TVNoob.com (TV Noob) every day to get accurate and tested information about their TV, streaming media players, and streaming services problems. Make sure your TV has been updated to latest version. Here is what to check when your TV is turned on, power light is ON, but no picture is seen or sound is heard: 1 - Be sure the component you are using (Xbox, Cable, SAT, ROKU) is turned ON. Thats our promise and our commitment.. Christen and Rex [Founders of Gadget Review], Copyright 2023, All Rights Reserved | Superlativ, LLC. How do I remove the power-saving configuration on my TV? The first thing you will want to do is check the t-con board and the main board, and give them a visual inspection looking for any burnt or damaged components. Turn off the room light and check TV for backlight glow. Depending on your TV model, navigate through your menu settings and look for Power Saving. Go through the options and turn it off. Please enable JavaScript to ensure you get the most out of the LG site, products, and services. Milton Bertin. Check the settings on the device for a switch that might turn outputs on or off. If it is very high that points to a main board problem. It sounds like there could be either a main board to T-Con cable problem or a T-Con board problem (maybe a main board problem). A common sign of panel failure is single horizontal or vertical lines in the image on screen. Does HDMI Cable Affect Picture or Sound Quality? Carefully check all the inputs and settings. Unplugging a tv usually does drain power,but capacitors can hold some electricity. Scroll to the General menu and select it. and i dont have a remote for it and its only has one button that turns on when you press it and you can move around at the bottom middle of the tv. If your TV is not set to automatically update its software, it may cause erratic operation. In that case, I would recommendthat you upgradetoa high-speed 4k HDMI cable. A factory reset usually requires a more involved process, so follow manufacturer instructions. I checked the voltage on the Power supply, everything was normal. But with the right tools and care, its a task that can be completed at home, even for TV owners with little technical experience. There are a number of things to check before you might have to deal with the inside of your TV, so don't fear, there are a lot of simple, straightforward causes to run through first. [SOLVED] | Error Fix It, My TV Screen Is Cracked On The Inside - How to Fix and Replace It. However, there's no picture, menu, etc. Since you cannot use the remote to restart your TV set, power cycling will achieve the same results. Inspect the cable wires for any physical damage. Opened it up. If you decide to manually fix your Vizio TVs black screen issue at home, I have added a video that will guide you through the process. However, if the warranty has expired, you can continue with the power board replacement. It has a feature to view whats on the TV, like a second screen. Reply, You should ask this on our Answers forum! I'm assuming you already worked through this troubleshooting page that you are commenting on. JavaScript appears to be disabled in your browser. If you do see visible damage to the LVDS cable, you can search your TV model number on our website to try and find a replacement. When looking for damaged components or burn marks, you can also look at the bottom side of the board. Best phone for non-nonsense small business users in 2023. If that works see if another device will work in HDMI1. And often they review only the products that provide the most kickbacks when you buy. If you cannot get any pictures, replace the cables between your TV and the input devices. Having your TV go black while you watch can be very annoying. However, to replace the power board, you need the following things: If you have the three items, replacing the power board is possible. Here's the insides: check the board which is connected to the motherboard with the black and wide ribbon cable in the left lower corner in this picture: There are 2 such boards that extend across the entire bottom of the unit, so I'm somewhat surprised I don't at least see picture on half the set. !function(a){var e="https://s.go-mpulse.net/boomerang/",t="addEventListener";if("False"=="True")a.BOOMR_config=a.BOOMR_config||{},a.BOOMR_config.PageParams=a.BOOMR_config.PageParams||{},a.BOOMR_config.PageParams.pci=!0,e="https://s2.go-mpulse.net/boomerang/";if(window.BOOMR_API_key="8ZKNB-L7R9X-J5VUX-ZKLUE-H2UQX",function(){function n(e){a.BOOMR_onload=e&&e.timeStamp||(new Date).getTime()}if(!a.BOOMR||!a.BOOMR.version&&!a.BOOMR.snippetExecuted){a.BOOMR=a.BOOMR||{},a.BOOMR.snippetExecuted=!0;var i,_,o,r=document.createElement("iframe");if(a[t])a[t]("load",n,!1);else if(a.attachEvent)a.attachEvent("onload",n);r.src="javascript:void(0)",r.title="",r.role="presentation",(r.frameElement||r).style.cssText="width:0;height:0;border:0;display:none;",o=document.getElementsByTagName("script")[0],o.parentNode.insertBefore(r,o);try{_=r.contentWindow.document}catch(O){i=document.domain,r.src="javascript:var d=document.open();d.domain='"+i+"';void(0);",_=r.contentWindow.document}_.open()._l=function(){var a=this.createElement("script");if(i)this.domain=i;a.id="boomr-if-as",a.src=e+"8ZKNB-L7R9X-J5VUX-ZKLUE-H2UQX",BOOMR_lstart=(new Date).getTime(),this.body.appendChild(a)},_.write("
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