Could you indicate how much the repair cost? Good to know that also Backlight leds can be tested in Diode test to check if they light up. I have question.my 42inch LG 2010 manufactured,slim border It was a fantastic view when you can see all the LEDs were perfectly lighted. This is the main cause of the TV shut down. Don’t panic, Candy. I looked the internet and it seems this problem is wide spread with Samsung smart TVs. When you see a light turn on above the icon, that's a sure indication that your backlight lamp's days are numbered. Samsung TV has no picture or a black screen A black screen could just be a sign that the TV is turned off, although if it is producing sound then you know that's not the case. If a cord isn't plugged in properly or if the right input mode isn't selected, there will be no picture onscreen when the TV is turned on. What is responsible for this. now some led for back light 6 volt which not glow with diode test I suggest test led tester is best for single or hole back light Thanks. LCD inverters can be replaced, but replacement LCD backlights are not generally available, so buying a new TV may be your only option if it fails. document.getElementById("af-body-413914580").className = "af-body inline af-quirksMode"; I'm just wondering where I could find spares. Try check out this link https://jestineyong.com/simple-modification-on-sony-led-tv/, Your email address will not be published. 01/07/2018 by Sim Say Hee Took tv to repair shop they said it would cost more to repair than what the tv was worth $6-700 i was suspicious when they said they would keep it and dispose of it as it was worthless Thanks. I have Samsung TV UN75F6300AFXZA back light is gone I don't know what is the actual part number of stripe, there is big confusion System software updates are available for certain LCD TVs. Model: Zika, A Microwave Oven With Many Faults Repaired. When you are removing the LED TV internal parts be extra careful for the Tab bonding. I unplugged it for an hour then plu … read more There is no picture whatsoever, however there is still sound like normal. Hi, I have an insignia 50" tv. I shutdown the TV from the remote control , but after I restarted it , there was no picture , only normal sound . When it's switched on, the backlight comes on for a moment but then goes off again. } [CDATA[ If you truly want to venture into LCD or LED TV you can check out on Kent’s and Damon’s Ebooks. Videos. my Tv is 2 years in November just passed. This kind of problem usually caused by one of the bad backlight LED in the LED bar. My best regards. Dec 24, 2008 #2 It's likely … When a TV screen is black and no picture appears, this can mean a few different problems. See the three photos below: True enough I found a bad LED. Good repair Suranga and it was fortunate that you had the exact same Hisense 50″ Smart TV Struck By Lightning Repaired, A Drill Battery Charger Shorted Out, Maintained And Repaired, A Hair Dryer That Produces Burning Smell Repaired, Backlight Replaced And LED Driver Bypassed In LG LED TV MODEL 32LF561D-TF, Welding machine power on but does not weld repaired. 6 or 7 months later, the picture started to dim, then go dark. Once the cover was opened I could see three circuit boards i.e; the power supply board, main board and T-con board see the photo below: I then performed the dc voltage check on the LED backlight connector and found that the DC voltage came for a while and shut down. Use the following guide to determine how to resolve a TV with sound but no picture. If the problem lies with the inverter, your functioning backlight bulb won't receive power. Nice job! I have an LG 42LB5600-UZ that I purchased a power supply for but does the same thing. document.getElementById("af-footer-413914580").className = "af-footer af-quirksMode"; Laptop connection in HDMI source not working properly. I can say, hats of and look forward with the upcoming modern technology. There's no SONY logo during startup but there's an obvious very dim light. I have lost the picture on my Samsung tv when selecting a program on my entertainment monthly pass, paid for, I get sound only but no picture. } Very professional repair with clear photos and explanation. TV Screen Is Black – Powers ON But No Picture. I would like to avoid mainboard converter since it as fried light several times. Question - my 42inch lcd tv is not working has sound but no picture can - DL. } Reboot it by turning off your TV and unplugging the receiver. Thanks, Thanks Mr Suranga for the detailed information. no pictures on screen but sound is on by mr1sujeet Nov 18, 2017 10:59PM PST miraz LED TV is on but I can't see pictures of the running program can only hear the words,please help me I turned the TV off and on, only to have a dim picture again before fading to black. No channels. audio and tv repairing. Thanks for sharing your articles Here are some steps to ease you through TV picture loss—from prevention to recognition to next steps when your picture finally does go out.TRANSCRIPTHere's a plot twist—often, your TV picture will go out before the sound does, preempting your show with an unwelcome cliffhanger. (function() { If not, then it's likely the backlight bulb. Can some one let me know what I can do? If it does, the screen will glow slightly. Problems with LCD or LED TV displays are sometimes caused by a faulty HDMI cable. If you start to notice your picture getting progressively dimmer, take it as a fair warning that your LCD's backlight is just about ready to quit.Many DLP TVs have a lamp icon on the TV frame. if (document.getElementById("af-header-413914580")) { Step 3: Reboot your receiverIf your picture does quit, first make sure that it's not just your receiver acting up. - Answered by a verified TV Technician. document.getElementById('af-form-413914580').parentElement.removeAttribute('target'); With the TV powered on, press any key on the control panel of the television (Example: Menu, Vol + or -, Input). I see this how to repair led,my question is how to repair a led TV that repeately burning led stripe. A good LED should light up and the bad one will not light up. There is no picture on … How do you test the voltage rating of an LED in an LED TV? Once you have confirmed the LEDs were all working fine and no longer shutdown, you can put back all the parts. negative no colour plse advise me I have a JVC LCD TV I turn it on and I get sound but No picture....does anyone know ... will be able to see if there is any back light. Once the all the LEDs are exposed, you can check each of the LEDs with your meter by setting the meter to diode mode. if (!IE) { return; } if (document.compatMode && document.compatMode == 'BackCompat') { if (document.getElementById("af-body-413914580")) { 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. Hello jestineyong, please I need your help. When you say the LED supply comes on briefly, how long is briefly? The sound is all right but the creen is pitch black. Thank you with the information, how much do the back lights cost? Maybe that is also a good reason never to test CMOS ICs with a Digital Meter in Diode/Beep test. More Videos. You have valuable knowledge and skills and should be well paid for your work, I have seen it many times here! // , How To Repair LED TV Backlight Problem – No Picture. Be between the best pros as you like now too. @*/false; Connect the disconnected devices one by one to the TV. Philips LCD TVs are no exception. BN96-26413B The tv was working in the morning as my son was playing xbox. To prevent overheating, keep your backlight system well ventilated and avoid turning your TV on and off repeatedly without allowing it time to cool down in between. Regards My SONY LED TV has no picture but it has sound. I have dealt with similar cases recently in the automotive field, where faults will make the vehicle either shut down or go into 'limp home' mode - a limited system of operation. when the TV gets a backlight problem, how does it perform? A good way to rule out one or the other is to get the room as dark as possible and shine a flashlight at the TV from an angle. Dear sir I have never ventured to open up an LED TV to this extent! If you've switched on your TV and the sound comes through fine, but you're not seeing any picture; there are 3 potential issues. LED TV Display is Good but No Audio / Sound from TV. How can I trick Sony LED TV 32" to make backlight system work normaly as if backlights are connected so that I modify another system to control backlight? Does this sound like a bad LED? But I am somewhat confused by your sentence that you were happy to earn some money from this repair, do you not get paid for the electronics work you do? How about having a flickering backlight, it comes on and imediately goes off. A customer of mine sent to me this BG LED TV with the complaint of have sound but no picture. No lamp, no images. if (document.getElementById("af-footer-413914580")) { The TV performed the boot procedure without displaying the animation and Android logo . The other point of failure could be the ballast, which starts up the lamp and keeps it powered. document.getElementById("af-header-413914580").className = "af-header af-quirksMode"; Now, I think I can give it a try! I guess it is similar with the TV - a protection mode is created. This site uses Akismet to reduce spam. Since I have the LED bar and do not have the single LED thus I replaced the whole LED bar and can keep the remaining good  LEDs for future use. Step 2: Watch for warning signsThe fluorescent bulb in your LCD TV dims over time. Downloads are … If you break it then the panel can consider useless unless if you know a way to fix it. if (document.getElementById("af-form-413914580")) { , please contact us here TV performed the boot procedure without displaying the animation Android! Picture but it has sound but no picture, only to have a 30PF9946/12! 2 years in November just passed give led tv has sound but no picture information to improve the knowledge electronics.I. 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Free subscription ) test CMOS ICs with a Digital Meter in Diode/Beep test between the best experience... Information to improve the knowledge about electronics.I am really Thanks to you a backlight problem how! Hats of and look forward with the upcoming modern technology format is not supported since it fried! The below link: https: //jestineyong.com/no-tuning-in-philips-tv-repaired/ TV that repeately burning LED.... You with the TV control panel, do not use the following to! Led in an LED in an LED TV with sound but no -... Internal parts be extra careful for the next time i comment dec 24 2008... When you see a light turn on, the TV, then the problem is main... The creen is pitch black point of failure could be the ballast, which starts up the life... Fried light several times then suddenly, no more picture, but the sound is all right the... Should light up and the screen was all blue detailed information a good reason never to test CMOS with...