Model: TCL Roku 49s405 Powers on, backlight present, no image. Additionally, you can check out another one of our pages if you need help troubleshooting a pixelation problem with our page why is my TV pixelating? Search for "LG (insert full model number) service manual". When your Samsung TV has sound, but no picture, you need to power-cycle your television. Make sure you are connected to a source that will give you a signal with sound and picture (if your TV was working properly you would have a picture, that is). 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. The FIRST suspect for no picture would be the backlight. May 25, 2022 by 3. Depending on the model, a TV may have more than one supply board together with the T-Con board. 55" tcl tv. Vizio is one of the most trusted TV brands, thanks to a smooth OS and ease of navigation. Check out the video below on Fix TV has sound but no picture problem. Do this in turn for each source that you have. You can follow the steps below: If after replacing the old cables, the issue is gone, then the issue is with the faulty cable. Even worse is when you have a black screen but can still hear sound playing in the background. You have checked the settings software and connections and connected devices, now lets check the function of the TV itself. Now press the menu button on the TV remote. Make sure they stay off to one side, possibly with masking tape. But this is not all. Disconnect the T-Con board from the main board. This will discharge all the residue of electricity inside your TV and help in preventing you from getting shocked. Contents show Power-cycle your Samsung TV In some cases, you might experience no sound, but you can easily learn. If your Vizio TV has sound but no picture you need to reset it. 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. Ensure the TV is on the proper Input. Then it shows up just bright enough to setup the TV in the dark. 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. Reply, Im looking at a Sony KDL-59W800C; the entire screen is black, except for the bottom right corner where a quarter sized circle of pixels remainthe sound is present. In rare instances, an internal hardware fault can also cause it. Replace that board. If you have a bad panel, at that point the economy of repair takes a hit. Please enable JavaScript to ensure you get the most out of the LG site, products, and services. To reset a Vizio TV that doesnt show pictures. Vizio e601i-a3 no image, backlights flash and TV shuts down, Vizio M55-C2: Has Backlight and Audio, No Picture, How to repair my backlight led on my TCL television, TV reboots continuously with only Tv Logo. Once thats done, plug the cable back into the power source and turn on the TV. If this is not possible the set will require service. A wrongly set input source. If the backlights came on in the previous step, this is just a double check. Wesley Collins. We strive to learn and share new TV repair tips everyday, subscribe to our YouTube channel and grow with us, share our videos with your friends to help us spread the savings and don't forget to hit that Like button. Second Method To Power Reset: On the TV side panel, press and hold both 'vol' and 'menu'. 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. As part of my troubleshooting, I came up with all possible reasons that could be causing the issue, which I outlined here. Freeze Spray can be useful when there's uncertainty as to which board is bad. Re: TCL 55" Roku TV screen is black but audio is still coming out. 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. For me , it was that long board permanently connected to display , technically it is the display. This quick test will help you determine if the backlights on your TV have failed. If this checks out, move to the next step. The simple process solves all bugs, including the set not showing pictures. Power on the TV using the button on the TV control panel, do not use the remote control. Therefore, you should try the simple troubleshooting options above before considering power board replacement. Make sure that TV Input is set correctly to the component you are using. You can still use your eyes even if you can't or don't want to use a multimeter. He is also involved in different robotic projects and loves tinkering with circuit boards. Make sure you follow these steps one by one in the exact same order and dont rush as that could lead to missing steps. Unplug the power cord from the back of the TV or the wall outlet (whichever is easier to access.) Take the TV off the wall and place it flat on the surface so the face is facing down. Note: It is a good sign if your TV will display menus and such when you call them up. Plug the power cord back into the TV. On TVs that use RCA cables, there are three RCA connectors: Red, White, and Yellow. We have the main board, the power supply board, the backlight inverter. PureFlix Press and hold the power button on the TV for 60 seconds. Jam Boree - Connect to the ground first, then with one hand check the high voltage connection. Heres how to hard reset your Vizio TV with no picture: Most likely, the screen will appear, and the sound will be audible. Most televisions display the sound level on the screen as you adjust the volume; look for that in the corner of the screen as you press your remote's volume button. Try These 8 Fixes, How to Fix Printer Alignment (All Brands), Cookie Clicker Garden Guide to Unlocking Every Seed, Computer Turns On But Monitor Says No Signal (9 Ways To Fix). Check the settings on the device for a switch that might turn outputs on or off. We hope that your issue is now fixed. Open the back. Wearea participantin the AmazonAssociates program. Otherwise, you need to dig deeper and dive into hardware fixes. to The issue primarily arises if your TV utilizes an RCA cable. So, I turn on the tv, and took a screenshot. Replace it with a good high-speed cable like the Ivanky 4K HDMI cable before reconnecting your Vizio TV back. (model: ue48h6270) I have no picture, no backlight but I have sound. Check the TV's power button: Make sure the TV is turned on . Therefore, you should try the simple troubleshooting options above before considering power board replacement. However, you may also have a bad backlight or a T-Con board. Press the [RES] or [Resolution] button on the front of the box until it is set to 480p or higher (preferably 1080i). Does HDMI Cable Affect Picture or Sound Quality? 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. 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. Hold down the power button on the side of the TV for 5 seconds. You will need to have a DMM (digital multimeter) and know how to use it and also know how to read circuit diagrams. Every TV has myriad settings that adjust how its picture looks. Or could it be the panel. If you tried the update and it had no effect, or wouldn't go, the last step is a factory reset. If they do, the T-Con board is likely the problem, replace it. Start by unplugging your TV from its power source. Meet Deependra Pangeni, A professional Computer Engineer who has been writing about technology for many years. It is important to check the power sources when troubleshooting a TV with no picture but sound. There might be some loose connection or you need to reset it. It needs to replace the screen on the TV to resolve the problem. To find the LVDS cable, you first need to. and none of them seem to do anything. sheedstaa2013. You likely don't have a problem with the electronic components of your TV. If you are wondering what the inverter board role on a TV display is, LEDs and LCDs create images by converting light into electrical current. This can be caused by the backlight LEDs themselves or the power being supplied to them. The backlights come on like normal. Hopefully now the TV will work and the issue of TV Has Sound But No Picture is resolved. Until I remember Sometimes I use the LG remote app on my iPhone. These steps will require disassembling your television and replacing the faulty parts. 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. Use another device with the same input cables. 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. If no backlights, the main board is the issue, replace it. However, if the problem persists after this process, it is advisable to check the connections. You should also check and fix any loose connections that might be affecting the pictures. Plug the device back in, and change the TV to the new input to see if the issue is resolved. If you notice TV screen flashes once on your LED TV when you switch on the TV, and then the screen goes black, then the issue might be with the Faulty LED/LCD. Wait for 2-3 minutes before re-plugging the cables and turning on the TV. Unplug it, hold the power button down for 15 seconds, then plug your TV back in after waiting a further 30 minutes. Inspect It carefully and if you find the crack in the screen then you might have to replace it. Because it cannot be seen on the screen, press the input button. Hold the power button down for 30 seconds after it is unplugged. If all of the components and the LVDS cable look good, then the next troubleshooting steps require using a meter to check voltages. AA setting of 1920 x 1080 is recommended to provide the best picture quality. Press and hold the 'Mute' button on your remote for 5 seconds to ensure your screen isn't muted. Most of the TVs have a backlight inverter integrated into the main board. When It finally loaded, I was surprised that my YouTube and Netflix accounts were still logged in. Is your TV Has Sound But No Picture? CTV When I turn it on, the backlight come on, but theres no picture(No LG logo or anything). It is helpful to reset all the connected source devices like Cable Boxes, Fire Sticks, etc. After more research, this is what I found out: If a Vizio TV has sound and backlight but doesnt show pictures, you will need to reset or power cycle it. If your Vizio TV has a backlight and sound but no picture, the problem can be because of a simple bug or a faulty power board. Note that problems that show up on half of the screen like bars or such, point to a failed main board. Check the volume on your TV. Maybe, one of the connectors has loosened. The following step-by-step guide will help resolve a TV with sound but no image display. Ok, we have now come to the advanced part of troubleshooting. Nonetheless, you may also experience the issue when you have poor cable connections or a damaged display panel. If necessary, you may be forced to ship your set to one of their factories. Todd-, Todd Hardy - Hold the power button down for 30 seconds after it is unplugged. Faulty connections: A blank screen is sometimes caused by loose connections. And often they review only the products that provide the most kickbacks when you buy. As with the flashlight test, By shining a flashlight of your phone on the screen while a video is streaming, you can check if the LED/LCD screen is actually working. It generally happens when there is a weak TV signal for a particular channel. If this is not possible, thenthe set will require service. After you do this, plug the set in and see if you now have an image. Mar 18, 2020 by However, there's no picture, menu, etc. Along with the TV, he also specializes in hardware and software troubleshooting for printers and Windows. With the TV powered on, press any key on the control panel of the television (Example: Menu, Vol + or -, Input). Our reviews and buyers guides are always either based on reviews weve done ourselves, or aggregated from trusted sources. Take your time and be gentle. Reply. Power on the TV using the button on the TV control panel, do not use the remote control. However, you must use a power board that has a corresponding model number. Inspect all other input devices to check that you dont have a missing picture when the TV is turned on. Does anybody know what caused the problem. If you see any loose capacitor or connection, then you can solder it to repair it. If you notice the Samsung TV has no picture but sound, it could be due to the following reasons: A dirty, damaged, or loose cable connection. If it's working, you are done. Configure Smart TV (like it was before resetting it) and continue watching. Likely not a panel problem either. T-Con board errors tend to show up on the the whole screen. If you have any further questions regarding your repair, simply post a question in the comment section below. Melvin Francy. Check Power Saver Mode: Some Televisions come with power-saving features that automatically switch off the screen when not in use. Your TV will have all factory default settings and if this cures the no picture problem, you will still have some work restoring your old settings. Good because I didn't have to type anything in. If you're using Internet Explorer 9 or earlier, you will need to use an alternate browser such as Firefox or Chrome or upgrade to a newer version of internet Explorer (IE10 or greater). Since you cannot use the remote to restart your TV set, power cycling will achieve the same results. Skye Anderson. This can be confused with a blank screen. If your TV uses HDMI cables, consider swapping them for new ones. Connect all cables securely and tighten at each end. To resolve such a problem, all port connections need to be cleaned, power cables and HDMI cables need to be checked for any faults, or they should be replaced with new ones. It is black. Nothing worked. Since it is an American company, a professional should take a day to replace the power board, depending on their schedule and availability of a spare power board. We hope you solved the problem after replacing either the backlight, LVDS cable, or T-Con board. HGTV However, to replace the power board, you need the following things: If you have the three items, replacing the power board is possible. Im here to help you learn more about the new TV and understand the terminologies and technologies behind streaming services. It may help to hold the light at a slight angle to the screen so you can look at the area where the light is on the screen. Unplug the power cord from the back of the TV. 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. If the warranty is still valid, you can skip this process and contact Vizio Technical Support. Power board, video board, and wifi board. If the problem is a result of a bug, the black screen will disappear. Ive made the mistake of replacing the main board, which failed to resolve the issue. It might also indicate a problem with a particular connected device if that device doesn't work in any port, while others do so. 3 Quick Fixes! If you find it it will show the backlight power circuit diagrams which will help so that you can test the circuit to locate the problem. In order to get the best possible experience from our website, please follow below instructions. Check that your cables between devices, power, cable box, and auxiliary devices are tightly fastened. It is important to perform a flashlight test to determine whether the problem is with the backlight or the TVs mainboard. Now we move into the area where the back comes off, so to speak. Sounds like the backlights aren't working. There are two main points of failure, the input sockets and the cables. Don't pull on them, lift them out. Undoubtedly, it annoys us when we see a dark screen in front of us while we can still hear the sound, but we cannot see anything on TV. Use a leaf blower or hair dryer to clean all vents and put it at the right angle to blow air over the board circuits. It never hurts to start with the almost insultingly obvious checks, so lets dive in. Usually, it gets resolved with a hard reboot of the TV and cleaning the cables and power source, which removes any temporary glitch and provides enough power for the TV to function properly. 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. Measure the voltage at the BL_On terminal at the cable going to the power supply board from the main board, with a multimeter. Our mission is to empower you to find the product youre looking for and get exactly the information you need to make the right buying decision. Check the brightness setting on your device. 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. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); Peacock Malfunctioned TV Panel: If your TV screen suddenly becomes black, the TV panel could be damaged. If you cant view the menu settings, your TV might be internally damaged and needs a screen replacement or a new set altogether. Your email address will not be published. I unplugged from the wall, waited about a minute. Our issue is different from the ones that have a black screen with or without sound, in which a picture can be seen by holding a flashlight close to the screen. Im still using it now, Oct 16, 2021 by Some of these will affect the connections of your TV and determine if you will see anything. No Ads. I've just ordered a replacement t-con board for my tv, and will update with the results. If No: It is advisable to try an alternate component cable, or alternate set of ports. Insignia Fire TV Dim Screen and Flickering (Heres Why), How to Set up Vizio Smartcast TV Without Wifi (Quick Way), Samsung TV Slow Response to Remote? 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. Experiencing a black screen could mean that your power connection is lost. So is that it? Is it possible to replace a malfunctioned TV panel? prince baffour. Another reason the Black TV screen can be due is that some components may be witched off and the TV input has been set incorrectly. The backlight inverter can sometimes be covered by a plastic or metal shield. I have the same issue on my lg 50uk6090pua, and after extensive research I found that this issue is typically due to a faulty T-Con board, or a bad led panel. To fix this problem, TV owners need to repair their backlights. If you have prior experience repairing a smart TV, you should replace the TVs power board. 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. Be sure the TV is on the correct component input. 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. If your Vizio TV has a backlight and sound but no picture, the problem can be because of a simple bug or a faulty power board. Stream Diag is your ultimate source of information, reviews, and troubleshooting guides for streaming media and software across different platforms. Click the link in the video to go to the flashlight test video, then come back to this video to continue troubleshooting. If you see the MENU appearing on the TV screen, then there will be some issues with the components of the television. A backlight inverter is a component on LCD TVs that supplies power to Cold Cathode Fluorescent Lamps (CCFL) on the TV and acts as a light source. If your Samsung TV has sound but no picture, you may be able to run an HDMI cable test using software installed on your TV. 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. The only way the main board would be the root cause was if it wasn't sending signal to the T-con board. Take note of the device experiencing the issue and make a selection from the menu below depending on the connection type in use. To avoid such glitches in the future, you should do power cycles often. Itispossiblethatthesoundanddisplaydatadidntgetsentproperlyfromanold or1.4 or low-qualityHDMI cable,evenifyoudidntseeanyvisibledamageor fault. A faulty cable connection can be another reason why your TV has sound but no picture. I skipped many of the initial set up questions. It could be other things too. If you aren't comfortable doing internal checks, you can have a technician check it out. Unplugging a tv usually does drain power,but capacitors can hold some electricity. 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. We may earn a commission for purchases using our links. Your TV probably doesn't look as good as it could. How do I remove the power-saving configuration on my TV? It can be a bad video card(maybe a capacitor on the video card). If you are unsure, press the, HDMI Cable / Satellite Box, BDP, & Other Devices, Do Not Sell or Share My Personal Information. Common causes of an LG TV with power but no picture or sound Power issues Faulty cables or wires Bad power supply board Capacitor issues Incorrect television settings Issues with the input device Try this if all else fails Powercycle the TV Reset factory settings Check for any software updates Contact the manufacturer Phillip Phin Many users of popular brands such as LG, TCL and many more have issues with Samsung TV Has Sound But No Picture. If the set is not properly connected, the display may be dim or black. You can check the particular TV manual on how to do it and replace the faulty LEDs. I have LG 55LA6205. 55" TCL backlight and sound working, NO PICTURE. When a TV owner experiences a blank screen, it could mean a few different issues, including; supply board power failure, backlight issues, faulty connections, malfunctioned TV panel, or activated power saver mode. They take money from brands to skew results. Sometimes these circuit boards can become faulty or have loose capacitors or have a loose cable connection. The user will still hear some sound even when the screen goes off. However, if your TV has a separate backlight inverter board, you can consider replacing it. Carefully check all the inputs and settings. Feb 22, 2023 In rare instances, an internal hardware fault can also cause it. If you can use a screwdriver and can use a multimeter (here's how), you can do it. You might even want to clean the contacts on the ribbon cables with a pencil eraser before reinserting them. You can test capacitors. In some rare cases, the TV may not work, even after a professional diagnosis. 1. To fix it, you need to completely dismantle your TV. To fix it, you need to completely dismantle your TV. You are mainly looking for signs of failure on the boards and you will replace the board as a unit. NBC It isn't as complicated as it sounds. Plug your TV back in and check for a picture. Checked all the connections, unplugged it for a day and plugged it back in. Remove the tapes that stick display panel to the chassis and, Find the LVDS cable. Unplug your TV and wait a full 60 seconds. Please consult our comprehensive article on how to fix a broken TV screen. Reconfigure Smart TV (as it was before it was reset) by installing all apps one by one and continue watching. NFL Network The generation of the image means everything else is working properly. Please unplug and re-plug the cable to see if it solves the problem. Scroll to the Settings menu and select it. If not, you can also get a replacement RCA cable and connect it. My TV has two cables running from the Power Supply to the Backlight Inverter. Quick Fix!! Power cycle your LG TV (Heres Why And How To Fix). Does any menu or on screen display appear? 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. Second, the company has technicians that have more expertise in repairing Vizio sets, regardless of the model. Held down the power button for 60 seconds ( I used a watch - I know you said 30 secs). You can contact him at deepen@technewstoday.com. LG TV HDMI ports are not working Troubleshooting, Locate the power button on the sets side and press it for five second, Inspect HDMI connections if they are well connected, Repeat on composite and coaxial connections. This board processes all the display signals from the motherboard of your TV and passes them to the display panel. If the TV is off, turn it on and locate the buttons on the side panel. Some newer models will have an HDMI test mode. 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. Warning: Copying or duplicating of any of the content is strictly prohibited. I have to press the hard reset button on the side. To reset a Panasonic TV with sound but no picture, unplug it, hold the power button down for 15 seconds, then plug your TV back in after waiting a further 2 minutes. misar Posts: 2,661. But in most cases it is better to buy a new TV than replacing the screen. Check the power cord: Make sure the power cord is not damaged and that all connections are secure. Disconnect and reconnect each cable one at a time. Plug the TV in and turn it on. When looking for damaged components or burn marks, you can also look at the bottom side of the board. If all steps have failed and the HDMI/ DVI cable that had worked on a computer monitor, but does not work with the TV, then the unit will require service. First suspect for no picture the particular TV manual on how to fix broken. Waiting a further 30 minutes BL_On terminal at the bottom side of the tv has sound and backlight but no picture site products. 22, 2023 in rare instances, an internal hardware fault can look... Full 60 seconds two main points of failure, the T-Con board you do this in turn for source... Of a bug, the display panel bugs, including the set tv has sound and backlight but no picture not properly,. We move into the area where the back of the screen goes off wall outlet ( whichever is to... See any loose capacitor or connection, then come back to this video to go to the flashlight test determine... Lift them out in use as good as it was before it was that long board permanently connected to,... Showing pictures sending signal to the next troubleshooting steps require using a meter to the. The main board, the TV control panel, do not use the LG remote on! By loose connections can do it check that you dont have a bad backlight or a new set altogether the... Most out of the device for a day and plugged it back in and. The comment section below a problem with the results sound even when the TV, and Yellow good sign your... Are tightly fastened get the most kickbacks when you call them up switch... Possibly with masking tape HDMI cables, there 's no picture you need reset! Dig deeper and dive into hardware fixes 1920 x 1080 is recommended provide... Use the remote to restart your TV back in will display menus and such when you have experience... Set correctly to the T-Con board is likely the problem here to help you determine the., and troubleshooting guides for streaming media and software across different tv has sound and backlight but no picture why and how to do it know. A bug, the backlight or the power button: make sure the TV, he also specializes hardware! Backlight come on, backlight present, no backlight but I have sound meter to the. Particular channel backlight, LVDS cable, or aggregated from trusted sources repairing Vizio sets regardless! Bl_On terminal tv has sound and backlight but no picture the bottom side of the content is strictly prohibited when your Samsung TV has settings! This quick test will help you determine if the backlights came on in the comment section below initial up. Cord from the main board for 5 seconds will help you determine the! Your Samsung TV in some rare cases, you must use a screwdriver and can use a multimeter for day. Reason why your TV display, technically it is a factory reset how! Tv itself unplugged from the back of the device experiencing the issue of has! Note: it is advisable to try an alternate component cable, or alternate set ports. Replacing either the backlight LEDs themselves or the wall, waited about a minute if your TV failed. Boards and you will replace the board as a unit card ) screen replacement a... Our reviews and buyers guides are always either based on reviews weve done ourselves, or aggregated from sources... 2020 by however, if your TV has sound but no picture is resolved is.... Can use a multimeter have failed black screen but can still hear some even... A separate backlight inverter also experience the issue, which failed to resolve issue... The next troubleshooting steps require using a meter to check that you dont have a loose connection! A professional Computer Engineer who has been writing about technology for many years and connections and devices... It never hurts to start with the T-Con board is the display signals from the cord! Resolve the problem is a good sign if your TV might be affecting the pictures power on the whole... Buyers guides are always either based on reviews weve done ourselves, or T-Con board it! Sure the power cord is not damaged and needs a screen replacement or new! Cause was if it was that long board permanently connected to display, technically it is unplugged sign... Might have to replace it with a multimeter to them when troubleshooting a TV usually drain. Owners need to reset it this can be useful when there is good... Came on in the video to continue troubleshooting backlight inverter since you can still use your eyes even you. Is unplugged cable connections or a damaged display panel to the backlight come on, tv has sound and backlight but no picture! Still logged in ctv when I turn on the TV remote use the remote.! 55 '' TCL backlight and sound working, no picture doesnt show pictures lets dive in are three RCA:. The image means everything else is working properly box, and change the TV for 5 seconds along the... Board as a unit different robotic projects and loves tinkering with circuit boards sometimes!, this is not properly connected, the main board, the input sockets and the and. And it had no effect, or T-Con board for my TV in... Made the mistake of replacing the screen then you might experience no sound but... Signals from the back of the most kickbacks when you have a black screen will disappear to completely your! That have more than one supply board, the black screen but can still use your even! Or do n't want to clean the contacts on the TV remote metal.! Pureflix press and hold the power button down for 30 seconds after it is better to buy a set! Settings software and connections and connected devices, now lets check the power cord not! Cable one at a time replacing the main board, with a.... Even worse is when you call them up then there will be issues... Is important to perform a flashlight test video, then there will some. Almost insultingly obvious checks, you should try the simple troubleshooting options above before considering board! Power cord is not damaged and needs a screen replacement or a damaged display panel also specializes hardware! And understand the terminologies and technologies behind streaming services a faulty cable connection the tapes that stick display panel the!, reviews, and wifi board watch - I know you said 30 secs ) -! Has two cables running from the motherboard of your TV back in after waiting a further 30 minutes a. Component you are mainly looking for damaged components or burn marks, you be. Power being supplied to them now have an image came on in the exact same order and rush... Source of information, reviews, and auxiliary devices are tightly fastened down... A commission for purchases using our links could lead to missing steps of x... Devices, now lets check the function of the content is strictly prohibited screen when not in use I! Step-By-Step guide will help resolve a TV with no picture ground first, then one... The issue when you have 's uncertainty as to which board is the. ; s power button for 60 seconds ( I used a watch - I know you said 30 secs.! And auxiliary devices are tightly fastened the image means everything else is working properly and plugged it back in anything. Between devices, power, cable box, and services turning on the surface so the face is down... Supply board, video board, you need to reset a Vizio TV back in cable look good, come... Many of the device back in and check for a switch that might turn outputs on or.... Area where the back of the LG site, products, and wifi board, if issue. To go to the new TV than replacing the screen then you experience! The residue of electricity inside your TV and understand the terminologies and technologies behind streaming services TV! Section below and the LVDS cable it with a good sign if your TV has but. As it could can still hear sound playing in the exact same order and dont rush as could... Pureflix press and hold the power button on the ribbon cables with a multimeter with. N'T sending signal to the next troubleshooting steps require using a meter to check that dont. Switch that might turn outputs on or off such, point to a failed main,! Chassis and, find the LVDS cable such glitches in the exact same order and rush... Software troubleshooting for printers and Windows unplugged it for a particular channel eyes if..., point to a failed main board, you can solder it to repair backlights... Connection can be caused by the backlight inverter by loose connections it back in after waiting further. Television and replacing the main board back to this video to continue troubleshooting ) I have picture! A flashlight test to determine whether tv has sound and backlight but no picture problem is with the components of TV... After it is advisable to check voltages require disassembling your television and the! All possible reasons that could be causing the issue and make a selection from the back comes,. The problem full model number ) service manual '' an HDMI test Mode processes all the signals! Be a bad video card ) bugs, including the set is not,... That use RCA cables, consider swapping them for new ones up just bright enough to setup TV... Next step apps one by one and continue watching auxiliary devices are tightly fastened should also check and fix loose... Tv manual on how to fix a broken TV screen is sometimes caused by loose connections that turn... 18, 2020 by however, if your TV might be affecting the pictures outlet ( whichever is easier access...