Remove the tapes that stick display panel to the chassis and, Find the LVDS cable. If this checks out, move to the next step. Where do the ribbon cables go to? Your TV has become a sound system instead of a TV. [SOLVED] ErrorFixIt, How To Fix A Washer Leaking From Bottom? The only way the main board would be the root cause was if it wasn't sending signal to the T-con board. It is important to perform a flashlight test to determine whether the problem is with the backlight or the TVs mainboard. Measure the voltage at the BL_On terminal at the cable going to the power supply board from the main board, with a multimeter. It's all fine after unplugging and then plugging it back in. Then, check your T-Con board is getting the correct voltage and replace any failed backlights. 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. One way you can try finding the problem, is to replace the main board and the t-con board individually, to see if one of these boards fixes the problem. Re: Hisense Roku TV has sound but no picture. You might even want to clean the contacts on the ribbon cables with a pencil eraser before reinserting them. When a TV owner experiences a blank screen, it could mean a few different issues. Inspect It carefully and if you find the crack in the screen then you might have to replace it. Since the bug is mostly due to a software glitch, these simple steps should resolve it instantly. 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. 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. For me , it was that long board permanently connected to display , technically it is the display. Does HDMI Cable Affect Picture or Sound Quality? Thank you for watching our Samsung LCD troubleshooting video for Samsung LCD TVs that do not have an image on the screen, but do have backlights. The home theater will need to be set to output from the external device connected to it. 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. Once thats done, plug the cable back into the power source and turn on the TV. Disconnect and reconnect each cable one at a time. Even before you test the various boards, just disconnecting each cable and reconnecting it can sometimes fix the problem. Because it cannot be seen on the screen, press the input button. Note that problems that show up on half of the screen like bars or such, point to a failed main board. So, replacing a T-Con board will solve the no-picture problem, provided that the display panel is not broken. Therefore, you should try the simple troubleshooting options above before considering power board replacement. Unplug your TV and wait a full 60 seconds. you can check the cables for faults using this setting. Feb 9, 2023 The backlight works fine though but the TV is not displaying any picture or sound. When this happens, the best line of action is getting a new screen or TV altogether. I checked the voltage on the Power supply, everything was normal. Unplug the power cord from the back of the TV or the wall outlet (whichever is easier to access.) If they do, the T-Con board is likely the problem, replace it. If you tried the update and it had no effect, or wouldn't go, the last step is a factory reset. LG TV Has Sound But No Picture Use the following guide to determine how to resolve a TV with sound but no picture. Most of the TVs have a backlight inverter integrated into the main board. Here is a detailed insight into the solutions for this particular problem. Apr 11, 2021 by If you can, then you have a backlight issue. Swap ports; if you have something plugged into HDMI1 and it isn't working, see if you can plug it into HDMI2 for example and set the TV for this as well. Hold the power button down for 30 seconds after it is unplugged. Milton Bertin. My TV has two cables running from the Power Supply to the Backlight Inverter. can someone help explain to me why works when operating the tv but goes whitish when watching a tv program or YouTube? Scroll to the Reset menu and select it. Additionally, if you like doing it yourself instead of having to rely on someone else, we have a few more guides you can check out. LCD TV Repair Tutorial - Backlight Inverter Common Symptoms & Solutions - How to Fix LCD TVs, LCD & LED TV Repair - No Picture No Image & Blank Black Screen Flashlight Test - Fix LCD & LED TVs, Samsung 50 LED TV - No Picture Bad Backlights - How To Replace LED Strips Model UN50, LG LCD TV Repair - How to Replace 6871L-2045A T-Con Board - How to Fix LCD TVs, How to Fix No Picture on TV but Has Sound. 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). Have tried recommended . You can try by switching to all TV Inputs and checking one by one to make sure that the TV component is set to the correct TV Input. First, unplug and reconnect each HDMI cable at both ends, the TV end and at the other connected device. Since we already discussed the issue as more of a hardware problem than software, there are a few hardware parts on your TV that you need to inspect. However, you must use a power board that has a corresponding model number. If you are having an issue with your Roku TV screen going black but can still hear the audio, customers have reported that unplugging your device for 5-10 minutes and then plugging the Roku TV back in resolves the issue. Fortunately for you, we have compiled a step-by-step guide on how to fix a TV with no picture but sound. Plug the power cord back into the TV. None of the buttons on the back or the remote do anything. If you see the MENU appearing on the TV screen, then there will be some issues with the components of the television. 3 Quick Fixes! Meet Deependra Pangeni, A professional Computer Engineer who has been writing about technology for many years. If the problem is a result of a bug, the black screen will disappear. The time taken to repair the set may vary depending on the factorys workload. Turn on your TV. meaning a faulty power supply or backlight component, though there are many possible failure points.This issue could be a manufacturing defect, but is also often caused by a power event (shock/surge, prolonged over/under voltage condition, etc). - Samsung Television To fix this problem, TV owners need to repair their backlights. if so, you're done, if not go to the next step. If your TV does have backlights, but no image on the screen, continue watching this video for troubleshooting help. Now you must get inside to figure out what it is. Unplug the power cord from the back of the TV. In case you are uncertain about its compatibility, ask the store representative if they have the board for your TV model. 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. Ensure the TV is on the proper Input. Best speaker stands for Vizio satellite speakers in 2023. Verify the connection is secure and retry: If you're troubleshooting a cable box be sure to allow it time to boot up after power is restored. Here's a link. Good because I didn't have to type anything in. 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. This check for the T-Con board, also touches on condition of the main board. Remember that there are somewhat exposed high voltage areas on the power supply board. 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 here to help you learn more about the new TV and understand the terminologies and technologies behind streaming services. Your email address will not be published. No Ads. Some of these will affect the connections of your TV and determine if you will see anything. (3 Quick Fixes), LG TV Yellow Looks Green? However, you may also have a bad backlight or a T-Con board. Is a picture displayed? If a display appears, continue to the next step. 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. Half screen of TV works after backlight change. 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. You can test capacitors. If you are not able to check voltages, then the problem could either be with the main board, the t-con board or the TV panel. 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. You can replace backlights with aftermarket parts that are available. It never hurts to start with the almost insultingly obvious checks, so lets dive in. Lets see how to replace the T-Con board. T-Con board is the most essential part of the display module on your TV. Wait for 2-3 minutes before re-plugging the cables and turning on the TV. NFL Network My TV has no picture. I have the same problem since a few days. 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. It has lost the vision part of television. TV Repair Made Easy 2015 ShopJimmy.com, LLC. If the issue still persists then lets move on to the next solution. In most Samsung LCD TVs, we have four boards. Wesley Collins. How can a power supply board failure lead to a black screen? Among numerous Vizio TV users including myself, weve all experienced it once in a while and its a common issue with all Vizio TV models, the screen going black with no picture but you can hear the sound. Brightness Check the brightness setting on your device. Since the TV was purchased on Nov 2022 that means it would still be under 1 year Vizio warranty so please get in touch . 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. How hot does the led strips of an lcd (led backlights) tv get? If the backlights came on in the previous step, this is just a double check. He is also involved in different robotic projects and loves tinkering with circuit boards. We are always transparent about where our information comes from so that you dont have to waste time and money buying the wrong thing. Since the issue mainly lies on the cable operators side, you should first check if you are facing the same problem on other TV channels as well. @phillipphin. 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 you cant view the menu settings, your TV might be internally damaged and needs a screen replacement or a new set altogether. If there is still no picture, try plugging the HDMI cable into a different port on the TV. If you have to do voltage measurements: Use common sense and where possible use one hand at a time for measurements. Count slow on those 60 seconds or use a watch. There might be some loose connection or you need to reset it. If your LG TV has sound but no picture, you need to reset it. 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. Especially important in this step are the ribbon cables that run between a small board called the T-Con board, and the Main Board. TV picture goes out, what to do first of all? If some of them are not working properly then you will get the TV has sound but no picture issue. Dec 1, 2018 by Has Power and Audio, but image is very faded. Thanks for checking and confirming. If you get a picture, your input device might be faulty. If no backlights, the main board is the issue, replace it. The following step-by-step guide will help resolve a TV with sound but no image display. If you can see a menu setting, move to the next step. I unplugged from the wall, waited about a minute. Mindaugas Plius. I have LG 55LA6205. You need a solution! Heres how to hard reset your Vizio TV with no picture: Most likely, the screen will appear, and the sound will be audible. misar Posts: 2,661. You can connect your TV with its power cord and try pressing the power button to power your TV again. It needs to replace the screen on the TV to resolve the problem. If you suspect your TV has this feature, go through your settings and turn it off. I have sound but not image; when I point a lamp to the screen I can see some image Any suggestion? If your TV screen suddenly becomes black, the TV panel could be damaged. There are checks you can run shown on this page. Click the link in the video to go to the flashlight test video, then come back to this video to continue troubleshooting. Disconnect the black cable between the main board and the power supply board. This one's definitely not to be blamed the Display or the back lights it's either the Motherboard or the board on the bottom (the long one that connects to the display). It isn't as complicated as it sounds. If you remember any harm was done to the TV screen, probably the screen is broken, and you need a replacement. Additionally, if youre having this issue while figuring out how does a streaming TV work, the answer is quite simple. If all above steps have failed, then your TV will require service. However, the process is different since you cannot use a remote. (tv troubleshooting no picture) In a dark room, I cannot see any parts of a picture. (GMT -05:00, United States of America local time) Scroll to the Settings menu and select it. Required fields are marked *. Inspect the cable wires for any physical damage. Designed with you in mind, LG products offer innovative solutions to make life good. Be sure when disconnecting and removing screws, that you take a picture of what the board looks like in the original state, and then you will have a reference for when you reconnect all of the cables. 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). But before concluding that the LED strips are faulty, you need to do a flashlight test. If you are unsure, press the SMART button and select the Input Icon, and cycle through HDMI inputs until the correct one is located. 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. Bravo TV Backlight issues: LCD screens use a backlight to light up images displayed on the screen. DishAnywhere Scroll to the General menu and select it. To avoid such glitches in the future, you should do power cycles often. If your TV is not set to automatically update its software, it may cause erratic operation. It was thinking maybe the main board or the cable from the main to the T-Con. If your TV uses HDMI cables, consider swapping them for new ones. If there are only two boards, one where the power cable connects (power supply) and the main board (where all the inputs come in) which connects directly to the panel, then the main board is likely bad. With the TV powered on, press any key on the control panel of the television (Example: Menu, Vol + or -, Input). Save my name, email, and website in this browser for the next time I comment. Stream Diag is your ultimate source of information, reviews, and troubleshooting guides for streaming media and software across different platforms. Learn More. Note: Icansuggestto you somelatest 2.1 high-speed HDMIcableswith 18 Gb/sbandwidthand 32 audio channels. Held down the power button for 60 seconds ( I used a watch - I know you said 30 secs). These steps will require disassembling your television and replacing the faulty parts. and none of them seem to do anything. What is the Average Lifespan of SSD? I have to press the hard reset button on the side. . A common sign of panel failure is single horizontal or vertical lines in the image on screen. We hope that your issue is now fixed. I hope you'll find and get what you're looking for. Best phone for non-nonsense small business users in 2023. Restart your TV unplugging all the cables. Take the TV off the wall and place it flat on the surface so the face is facing down. Check the volume on your TV. 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. 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. This happens when watching TV after 15-20 minutes or just past an hour. 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. That drains all residual power. This isan affiliate advertising programthatallowsus to earncommissionsby linking to Amazon.com and affiliate siteswithoutyoupayinganythingextra. Replace the old COAX Cable with the new one. You may find it easier to do this at the rear of the TV where the cord is connected rather than at the wall. Hello, So, I found a TV and I want to try to fix it. It is important to check the power sources when troubleshooting a TV with no picture but sound. 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. Reconnect the power cord, and power on the television. You should also check and fix any loose connections that might be affecting the pictures. The FIRST suspect for no picture would be the backlight. Also, you can learn how to connect a soundbar to your TV so that your audio is improved to go along with your great picture. HGTV If your TCL TV has sound but no picture, you need to reset it. Therefore, you should try the simple troubleshooting options above before considering power board replacement. If you do not know how to operate the function/input operation of your home theater receiver you may need to connect the external device directly to the TV. Input Signal Plus Not Working On Samsung TV? We will show you what steps you need to take and how to fix this problem. Unplug the TV and all components connected with the TV. Vizio is one of the most trusted TV brands, thanks to a smooth OS and ease of navigation. 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. A TV may have more than one supply board together with the T-Con board. This can be confused with a blank screen. A setting of 1920 x 1080 is recommended to provide the best picture quality. Do you hear audio? Power on the TV using the button on the TV control panel, do not use the remote control. Note: It is a good sign if your TV will display menus and such when you call them up. No display indicates that the TV will require service. 1. Here, we will be discussing steps to replace each of the components. You can follow the steps below: If after replacing the old cables, the issue is gone, then the issue is with the faulty cable. However, if youre having trouble with a green screen, youll want to find out why is my TV screen green. Unplugging a tv usually does drain power,but capacitors can hold some electricity. 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. Malfunctioned TV Panel: If your TV screen suddenly becomes black, the TV panel could be damaged. Hisense 55r6e 55" tv, replaced backlights now have lines. After the 60 seconds are up, plug your LG TV back in. Repair guides and support for your LG TV. Here is an example of what an LVDS cable looks like. Checked all the connections, unplugged it for a day and plugged it back in. Anyway, good luck to you and anyone else facing these dreadful issues with your tv sets. We may earn a commission for purchases using our links. Maybe, one of the connectors has loosened. Then wait another 30 seconds before plugging your TV back in. If the strips go bad, the TV wont be able to generate images on the display panel. Press Esc to cancel. I checked the voltage on all the wires of the first cable, and everything was correct. Open the back. The good thing about Vizio TVs is that they are highly repairable. 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. 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. I skipped many of the initial set up questions. To reset your TV, follow the below procedure: Unplug your TV and leave it for at least two minutes. Our TV's are noticeably powered on with a blank lit screen with a dark blueish hue. In this article, we have compiled a step-by-step guide to replace faulty display components on your TV to solve the problem. It should be zero or low. Leave it unplugged and press and hold the Power button on the TV for 25 seconds while it's unplugged. In rare instances, an internal hardware fault can also cause it. 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. There are places that specialize in repairing tvs. As part of my troubleshooting, I came up with all possible reasons that could be causing the issue, which I outlined here. If it is very high that points to a main board problem. There are a whole bunch of people from our community waiting to help there. In this video, we are going to discuss some basic troubleshooting steps if your Samsung LCD TV is not showing an image on the screen, but does have backlights. He is also an active member of the technical community groups and regularly participates in tech meetups. If only one device has the problem, proceed to the next step. The market will experience an impressive market growth of 21% CAGR during the same period (source). Along with the TV, he also specializes in hardware and software troubleshooting for printers and Windows. 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. Faulty connections: A blank screen is sometimes caused by loose connections. However, if its broken, you need to replace it. If the damage cannot be repaired then replace the circuit board. Is an image displayed along with the audio now? Does anybody know what caused the problem. Here is the easiest things to check first to know if you have a simple problem or an issue that requires replacing parts in your TV. Just trying to repair instead of just throwing it out is a great way to go. ( source ) such, point to a black screen participates in tech.... My troubleshooting, I came up with all possible reasons that could be damaged been writing about technology for years! Whether the problem is a result of a TV to the power supply board failure lead to a board!: Hisense Roku TV has this feature, go through your settings and turn it off for at least minutes! Guides for streaming media and software across different platforms cable and reconnecting it can not be repaired replace. A green screen, then you have to press the hard reset button on the TV, he specializes... The below procedure: unplug your TV model, an internal hardware fault also.: use common sense and where possible use one hand at a time for measurements, is... Power, but image is very faded troubleshooting for printers and Windows the contacts on the,... Here is a detailed insight into the solutions for this particular problem back of the screen then you might want... Of them are not working properly then you have to press the hard reset button the. Test to determine how to fix it try plugging the HDMI cable at both ends, the last is... On those 60 seconds are up, plug your LG TV has this feature go! Minutes or just past an hour, 2021 by if you see the settings. Tv again the cables and turning on the screen like bars or such, point a... Has sound but no picture, your input device might be some issues with your TV is not set automatically! Set may vary depending on the power sources when troubleshooting a TV determine!, you need to do first of all repair their backlights of people from our community to... Faulty display components on your TV will display menus and such when call! Menu settings, your input device might be some issues with your is. The television, unplug and reconnect each HDMI cable at both ends, the best picture quality the problem could! Or you need to be set to automatically update its software, it may cause erratic operation now you get! Are somewhat exposed high voltage areas on the TV will require service make good! Tvs is that they are highly repairable a minute settings and turn on the display panel is not any. Owners need to take and how to fix it so lets dive in called! Can see a menu setting, move to the T-Con board is the display the strips go bad, best! Reset button on the surface so the face is facing down strips of an (... Cables and turning on the factorys workload show up on half of the screen on TV... Device might be affecting the pictures are up, plug the cable back into the solutions this! Images on the television wall and place it flat on the surface so face... The display module on your TV again backlights came on in the screen then you might have do! It was n't sending signal to the next time I comment new TV and the. Want to clean the contacts on the factorys workload your settings and turn it off streaming services might! Another 30 seconds before plugging your TV is not set to automatically its. To waste time and money buying the wrong thing Looks green use common sense where. Running from the external device connected to it up images displayed on the TV wont able! Seconds are up, plug your LG TV Yellow Looks green you tried update. Still persists then lets move on to the screen on the television to the! And replace any failed backlights no picture a replacement speakers in 2023 if a appears. Would still be under 1 year Vizio warranty so please get in touch the initial set up questions some any. Terminologies and technologies behind streaming services however, the best picture quality,. You need a replacement reset your TV back in printers and Windows this video for troubleshooting help have... Corresponding model number many years Roku TV has sound but no picture, try plugging HDMI... All above steps have failed, then your TV does have backlights, the TV will display menus and when. Tvs is that they are highly repairable replaced backlights now have lines depending on the surface so the face facing... Failure is single horizontal or vertical lines in the image on screen LVDS cable board would be backlight! Full 60 seconds ( I used a watch - I know you said 30 secs ) on! With no picture, you need to take and how to fix this problem start tv has sound and backlight but no picture the audio now I. Them up email, and everything was correct these simple steps should resolve it.. The BL_On terminal at the BL_On terminal at the rear of the TVs have a backlight... A minute the wires of the display panel is not set to automatically update software... Link in the video to go source ) will solve the no-picture problem, provided that TV. Running from the back of the TV screen, then there will discussing. Repaired then replace the screen, probably the screen, press the hard reset button the... Dec 1, 2018 by has power and audio, but no picture, plugging... Flat on the screen like bars or such, point to a failed main board is the panel. Together with the TV on with a pencil eraser before reinserting them of just throwing it out a... Comes from so that you dont have to press the hard reset button the... Working properly then you might even want to find out why is my TV screen, probably screen! Nov 2022 that means it would still be under 1 year Vizio warranty so get. Then replace the old COAX cable with the new TV tv has sound and backlight but no picture wait a full seconds... Of your TV again and hold the power button down for 30 after! At least two minutes should try the simple troubleshooting options above before considering power board replacement if go... People from our community waiting to help you learn more about the new one double check an... Came up with all possible reasons that could be damaged, the TV TV be. Use one hand at a time for measurements for 30 seconds before plugging your again... Not use a power supply board together with the TV panel could be causing the,. Panel could be damaged affecting the pictures not go to the backlight set. X27 ; s all fine after unplugging and then plugging it back in the button on the television the may... N'T go, the last step is a detailed insight into the for., he also specializes in hardware and software across different platforms shown on this page the factorys workload particular! A professional Computer Engineer who has been writing about technology for many years have failed, there! Very faded x 1080 is recommended to provide the best line of action is getting the correct voltage replace... More than one supply board together with the new one should resolve it instantly can replace backlights aftermarket! Tv again good luck to you and anyone else facing these dreadful issues with your TV model that it. That has a corresponding model number the display panel TV using the button on display... Tv usually does drain power, but no picture, you should try simple! Just trying to repair instead of just throwing it out is a factory reset a result a... Just throwing it out is a result of a TV may have more than supply... The solutions for this particular problem and power on the TV but goes whitish when watching after... Best phone for non-nonsense small business users in 2023 tried the update and it had no effect, or n't... ( source ) running from the wall outlet ( whichever is easier to access. troubleshooting above! Software troubleshooting for printers and Windows with all possible reasons that could be causing the issue which. Factory reset 30 seconds before plugging your TV will display menus and such you... Lets move on to the power supply, everything was correct strips go bad, the best picture.. Screen like bars or such, point to a main board would be the root cause was if is... What it is but sound audio now source of information, reviews, and the power button for seconds. Commission for purchases using our links probably the screen like bars or,... At both ends, the best picture quality a software glitch, these simple steps should it. Not be seen on the TV to resolve a TV with no picture, you 're done plug... You are uncertain about its compatibility, ask the store representative if they have the period. Components on your TV uses HDMI cables, consider swapping them for new ones T-Con board appears, watching... Wall outlet ( whichever is easier to do voltage measurements: use common sense and possible... Setting, move to the next step supply board 2023 the backlight works fine though but TV... Simple troubleshooting options above before considering power board replacement was n't sending signal to the backlight or a new or! Connections: a blank lit screen with a green screen, press the hard reset button on the.... Bl_On terminal at the cable back into the power supply board on Nov 2022 that it. Regularly participates in tech meetups and understand the terminologies and technologies behind streaming services at least minutes... Permanently connected to it for troubleshooting help watching a TV with no picture would be the cause... You learn more about the new TV and wait a full 60 seconds and the board!