LED LCD TV REPAIR sound but no picture, black screen, dark picture pt1

easy ways to fix LED TV has sound but no picture repair, watch this TV repair service troubleshooting guide. this repair Guide shows 3 easy ways how to Troubleshoot LED LCD TV by testing main logic, power, backlight LED driver boards and checking for dark picture with a flashlight. see part 2 how to fix backlight on TV, this TV repair guide works on Vizio, Sony, Samsung, Vizio, LG, GE, Hisense, Panasonic, Toshiba LED TVs. Part 2 is the TV backlight repair see here • How to fix LED LCD TV ... (Vizio E470i repair)
check out shopjimmy TV repair channel- / shopjimmy

[@TampaTec]

PART 2 WILL BE UPLOADED NOW kzbin.info/www/bejne/j5jEfWmOa8qGl7c FOLLOW ON INSTAGRAM FOR MORE instagram.com/tampatec/ #FixVizioE470iTVrepair

[@cheesydumb1309]

Tampatec

[@leftystroke22]

Tampatec how can I contact you personally. have question about vizio television

[@thecolorofirish21]

Hey Tampatec, where can I find documents on the voltage out for pins on my specific TV, is there a resource you use?

[@josephmercer8101]

Tampatec i have several strips burnt out problem one but i tested the lcd output and dont read any voltage unless i am grounded to the panel.the negative connection in the output harness seems to be dead any ideas what to check?

[@ahrajbutt473]

hii

[@altomic73]

fantastic tutorials. I'm halfway through blindly fixing a 50inch TV that I picked up from the curb and this is giving me so many great suggestions for smart repairing. thank you

[@GregoryFamilyFun]

First time saying anything on KZbin but wanted to thank you. This video saved me $250 and my tv. In the end it was both boards that needed to be replaced and BAM!

[@alaingoulet4468]

Excellent presentation. I like how you point out what the board does and what voltage you should expect. Looking forward to part 2.

[@darienfrancis2799]

This is absolutely outstanding. Perfect troubleshooting technique. Thanks a million - Tampatec

[@paulmerritt8593]

Why on earth would anyone put a thumbs down? This is the most helpful of all the videos I have seen to troubleshoot a TV. First of all, you get straight to the point and speak loud and clear. The recording is good for both image and audio quality and it is not 30 minutes long. Most of all it is very informative and to use a flashlight to save time and tell if you have a picture is brilliant. Thank you for putting up this video. I feel confident I will be able to troubleshoot my not-so-old 65 inch RCA cheapo model that still should have life in it. I watched the picture fade out before my eyes and the blue light tells me it's on still. I first assumed I blew a capacitor or powerboard and I have not even opened it up yet but I am betting the flashlight trick will reveal what I now suspect. I didn't have an audio source coming out the tv at all because I am using it for my computer and the computer is running the audio through my studio moniters. I never used the TV's speakers but it would have told me the signal was still getting through.

[@brucenicholas766]

God has bless this guy with such excellent talent that he showing us how to save money on repairs for those of us who are willing to try.... keep up the great work. Tampa tech

[@TampaTec]

thanks

[@jamesbarnes6508]

77

[@KWASHIC]

Im opening a repair shop

[@rodneyholshouser4521]

He's the Goat

[@robsantiago118]

@@TampaTecI live in Tampa and would like for you to teach me if that’s possible for you I do have knowledge for components and motherboard any way to contact you directly

[@francom6230]

Thanks for sharing your knowledge. Not many folks want to teach anymore. It can ve fun to "beat the bugs" -- You da' man!!

[@Tutterzoid]

Very informative ... Jam packed with info ... Thanks for sharing this crash course in flat screen repairing :)

[@coptechgold]

Very good video. Looks like easier fixes than the older TV were.

[@dredrotten]

Good on you mate! This is just what I was looking for. Yay!

[@insabali2485]

Fhi

[@02vector]

All good legitimate videos from a credible technician !

[@mrvic3952]

Again the best video about TV repair!

[@hond0071]

Thank you for the outstanding work you doing.

[@lowrders]

Thanks dude. Perfect. No bull, just the info I need. Nice. Keep up the good work.

[@domcizek]

good video, glad your video had no music, just info

[@MelindadelosSantos]

Great video, easy to follow if I had the space and tools. Can you please tell me which parts of the LG TV are saleable so I can properly take it apart and garner a sale or two to assuage my misery

[@Xebozone]

Very informative and simple diagnostics steps with using with using basic tools! Great video!

[@farzanaabc796]

No picture on 50 inch Samsung tv

[@farzanaabc796]

Please help

[@ProHackHD]

This information is very helpful.

[@Bilas_Tv]

thanks for the tutorial brader, friend from philippines

[@damon2]

Thanks for this I have a Panasonic that had no picture so I just disconnected the long lead from the power board to the logic board (as your video) then re connected it and the TV is now working thanks!

[@vijayakumarvk2428]

Thank you sir for the best information good explain Sir thank you very much Sir

[@jamesdean9944]

Very informative explanations and tutorial to aid the avid DIYer.

[@howardludwig9715]

GREAT SERIES, THNAKS

[@gadimuzik5431]

Thanks alot mate!you are best tv man on youtube. 1 question for you how do we test leds on lg power board it has + and - on the connection not same samsung it says led- & led+ how do we test it?do we tet that with multimeter?thanks

[@rlamb51]

I'm looking at a HiSense 50H5G but this set of videos helped out a lot. especially the meter views. Do you know where block diagrams and-or schematics for tvs can be found? Know of any practical Trouble Shooting guides can be found? Really helpful video.

[@michaelbirkmire6565]

TAMPATEC YOU ARE AWESOME!! Thanks for all your great work! I have a question related to your video...I have the VIZIO e470i-A0 that has the same symptoms - you can see the picture with a flashlight. When I check the voltage on the 4 pins of the LED output connector as shown around 5:22 on your video, I get pin-1 = 0 volts, pin-2 = 65v, pin-3 = 2v and pin-4 = 65v. I don't get "0", 100v" or "120v" as you indicated as possibilities in the video - what might be wrong with this - the power board or the LED strips or something else?

[@aliadnankhalil]

Sir tell me pls my hisence 55" only shows few volts on the led conector so ho do i get the exact voltages wht cud b the wrong

[@ceddbett876]

i got a 32 lg led digital model no 32LF550D has sound but no pictures...?

[@EverythingPossible-1]

hiii Jimmy, I wish to need to known about 32" lg led TV's output volt for led back light pannel.... plz help me as soon as possible THANKING YOU....

[@sirajamscse]

fantastic bro great and simple test case. congrats for video

[@bruceyork5260]

Great video, is going to help me repair my Samsung TV

[@kerwinvillasin]

thanks a lot i got a lot of knowledge from this vid. just fixed my LG 32ln5400 backlights.

[@SyberPrepper]

Great video. Thanks.

[@breadtoasted2269]

Thanks for sharing your knowledge! Very helpful 👍

[@rockhard6082]

Hey tampatec thanks for the vid but confused have a sony kdl48w650d has sound the letters sony come on when it turns on but then no pic think it could be the rf signal board?

[@walker55able]

Hi Tampa Tec great videos thank you. I am struggling with a Sony LCD tv with lamps not leds. The lamps are so hard to source. I have them come on then off. Power supply voltages are okay. Any thoughts greatly received. Not changed main or tcon boards as yet thank you

[@gearoidkenny]

Helpful video thanks. April2017 I repaired a Techwood 55AO2SB 55"TV . Its remote led flashed, the remote was transmitting, but no picture. Not sure if sound was working as did not test that. Not a backlight led problem as could not see the MENU in dark room w flashlight shining on the screen. I think it was a 2015 model TV. Root case was one corner of the power supply board was broken / cracked. This where one of the screws attaches that PSU board to the TV chassis. This caused one important thin electrical track to be severed. I repaired with superglue and track repair wire ... green thin wire. I also repaired the earth contact using some wire and solder , this at same place as it was a poor earth due to the damage. TV worked correctly thereafter. Pcb design is poor/cheap and obviously the pcb material also poor quality for this to happen. TV picture etc seems quite good.. I am an electronic R&D and design eng. Hope this helps someone else.

[@Devaduttverma_Official-Vlog15]

hay this video of lcd repair is to good so I liked !

[@usernamestof]

EXCELLENT VIDEOS 1 AND 2 THANK YOU

[@terriljudice8954]

T Judice: Thank you for the extremely informative videos on TV repair. Specifically, issues with TVs having sound, but no picture. I have an RCA 55" LED TV LED55c55r120q with sound but no video. I can see the menu image using the flashlight technique, so it is some kind of backlight problem. Main power board shows 5V sb power, and 12V when powered on. The BL voltage on main power board connector coming back from logic board shows 5V. (NOT 3.2, is this a problem?). I unplugged the LED power cable from the main board to get the actual voltage reading at the board. Both LED+ pins are reading 223V(with connector going to LED strips unplugged). With LED wire connector plugged in, the voltage on the LED+ pins starts out high, and quickly dissipates down to 0. I purchased new power board, but same behavior. Can you direct me what to test from here?

[@josephantony5589]

Very interesting thank you Sir for the brief explanation that's to the points only

[@TousisDimitris]

Greetings Tampatec and thank you for your excellent videos! I was trying to fix my LG TV because when I turn it on it goes with sound but no picture. The remote was working also I got noticed in the dark panel the settings menu. I check my backlight LED strips because it is the second time that has problem, but all leds are working and light up.I replace the capacitors on the PSU and I check with my multi-meter the Volts it says around 160V but on the pcb writes down OUTPUT 13.2V /43V 500mA. Would you give me some suggestions to check?

[@tessag856]

Tampatec great video. I have a Vizio d500i-b1 and a technician told me I need to get a power supply board. I check shop jimmy but they're out of stock. Any idea where I can purchase a replacement?

[@raularellano3733]

Very.Good video thanks!!! hey tampatec i have UN55F6400AFXZA TV SOUND BUT NO PINTURE ANY SUGGESTIONS PLEASE

[@PupettaZoccola]

Testing my psu dc voltage i've replace the board if it give me 11.5v instead of 13.0v written on pcb? Thank for your help

[@d4rkmatt3r26]

Great video thank you:)

[@lloydekins]

Hello mate wondering if you could help, I have an LG 32LH3000, has backlight and turns on fine but no display, what could be causing this? I think i might just order a new board and replace the old one but im not sure which board could be the problem. Thanks for your help!

[@mrchriz1000]

hey dude I got a new power supply for my TV it worked for a week and then had the same issue? are you from tampa?

[@gkarnatak]

Hi, my LG LF6300 has continuous brightness or contrast fluctuation even after making energy saving mode off, could you tell me what could be the possible causes

[@Danieluh123]

Hi, Thanks for your video! I have a question. I have a Phillips TV where the picture got dark with a thick, green, horizontal line, and for a second a noisy sound on the speaker. I replugged power, it started (by it self as it do when plugging power) but got dark (only backlight). I replugged power again, but after showing the Phillips-logo for 0,5 sec it got completely dark, without backlight or picture at all. The standby supply-voltage are 3V, but ON/OFF is 0V. None of them changes when I push the power-button, and the power-board deliver 5V, 12V and 24V constantly, even when pushing the powerbutton. I've measured that the buttons cirbuit board works. Any advice? Can't find a replacement motherboard anywhere.

[@abelvasquez7165]

Good Video. Informative.

[@ThomasMehiar]

Excellent!

[@Unklebenny13]

Great video! I’m Tim in California and I have a Sony XBR 75850D tv which has audio only and no video. I have replaced the main control board without any change. I do not see any microlights and I do not see any shadows on the black screen using a flashlight. Do you have any suggestions for repair and do you sell parts?

[@achiclids]

Tampatec Do you do home repairs? I have a Samsung TV that shows the picture once in a while (when it feels like). Can you repair? 65"

[@robertrandle3251]

love your vids they have helped me lots of times i have an Hitachi 48hk6t64u and back lights are blue can i repair with lamp beads and if so what voltage should they be please

[@timothysutter2655]

Gotta question. I get my 100v then two seconds later it drops out. Power supply board?

[@brucenicholas766]

Great guy!.....Wonderful personality, explains everything very professional ...thumbs up for this guy everyone. ...God bless you Tampatec!

[@craniummatter]

can a bad (bulging) capacitor in the LED driver section cause the values to be 0 volts ? Cause that's what I'm getting. I'm waiting for a replacement capacitor but I'm wondering if I still might need to replace the PSU. Great videos BTW!

[@wilmarcjean41]

I like so much your video, look like very helpful

[@asifsheikh7308]

hey sir my tv has only 2 led wires +ve and negative when i switch on 144 volts on multimeter then it droped to 56 v in 10-15 seconds and monitor britness became too low how to fix

[@richardmatheka3115]

thax for the tutorials,,they've been of great help to me,,keep it up tempatec.

[@konglyyi2681]

Very good sir I learned alot from you sir

[@khamiswongita3210]

Good work.keep it on

[@ElectricPointOfficial]

It's great video

[@Sivim]

big thumbs up , me and my lg led tv waiting to the next vid...

[@TampaTec]

it's funny you said LG because there's LG parts are in this Vizio TV so maybe common repair with LG and Vizio TVs with LG parts, OK i will upload it this weekend it's painfully long video to edit.

[@daisyfleming5070]

A great channel. I have a 2012 LG NO PICTURE BUT SOUND?

[@declyn8]

THANK YOU!!!!!!

[@reginaharden3385]

Thank you!!!

[@duggiechester]

Hi Tampatec - have watched many of your videos - great work! Just wondering if you could help - I have a TV which turns on great - have picture and sound, then after a few mins (15-20) picture goes off (black screen) but sound continues! I switch tv off then switch back on the above happens all over again. Do you have any thoughts? Kind regards Ed

[@kennethalix3677]

This was very good 👍🏿👍🏿

[@LuiKrang]

Hey! Thanks for the helpfull video. Wondering if you would help me out as my particular case seems a bit different. I have a samsung un50j6200afxzc 50 inch tv that has sound and a visible blacklight but no image. The flashlight test does not work as I don't see anything. I would order a t-con board but I noticed something weird. The voltage going to the led driver board (which like you is combined with the power board) seems to be really high. You say it should be stable at 100v. on mine depending on the pins it is stable, but more around the lines of 150-190v and each pins seems different. As far as the voltage going to the mainboard it seems ok as my board says 13 v and they are all around 12.8v. This is leading me to believe I might have an issue with an LED backlight strip. WHat do you think?

[@kencarlson7321]

Very informative thank you. I think my backlight inverter board is bad, but I didnt see you say anything about sound so Ill ask. On mine, the tv turns on and a buzzing comes out of the speakers. Has done this for years and after it warms up, you shut it off and turn it back on and all is good. Now you turn it on, buzzing still there, but picture goes black at 20 seconds every time. Weird thing is when the picture goes black, the buzzing stops. So I was assuming a transformer on the inverter board. See nothing with flashlight when black. Man are those boards hard to find in stock. Thanks again and great video!

[@getachewmolla9489]

keep up great work next time i will ask same

[@hollyjeffs4270]

Hi tampatec i have this same board in my tv and have bought a new rf board to replace mine had a problem with turning on now ive repaced rf board the picture plus all menus are upside down have u any ideas how to fix it model is te46led its a baird tv 46 also theres no option to flip screen in factory menu thanks

[@IrfanKhan-qt7rs]

Very good work

[@ikecardenas9682]

Thanks for sharing. .

[@lazarjolic5416]

Thank you so much...

[@glen3993]

hey have you ever fixed a Sceptre x322bv-hd mine has sound but no picture, did the light test saw picture opened up back and the only boards i saw was the main board in the middle of it and a small one at the bottom> about 1"x20" long is the backlight inverter or tcon board built in to the main power board in the middle

[@robchitoe7199]

Thanks!

[@irbyhartley6473]

Black screen problem started months ago. After much off/on and waiting time, some success with restoring screen bright. But, now this off/on trial stuff no longer successful. So, I guesed something was overheating in there somewhere, so I located a small fan to cool the right back side of the set. Lo and behold, after a short time, the screen came on and stayed on. This worked continuously 80% of the time, but never failed to start if you had patience. Also, once on and left on overnight, etc., screen brightness time improved, sometimes even after the fan was off! This might be useful for someone, but sometimes a new set looked very tempting!!

[@roumenvesselinov]

Very Helpful 😮

[@jasonruch3529]

Very informative 👏 👌 👍 😀 new sub! I'm currently going thru the exact same problem 😪

[@s.d.8567]

Hey tampatec, I've got a haier 55ufc2500 and the connection from board to backlight is 4 pin (+-+-) and I have almost 300v between the outer pins and nothing between either the +&-that's next to each other. The tv is only 4 months old. Any advice you can give me would be greatly appreciated.

[@misterfrediemcfullvlogs2715]

Is this can be apply to other unit led or lcd to fix the problem like my TLC lcd flat screen tv power display but no picture and audio.

[@TheChemist187]

My tv turns on, backlight turns on and I can hear audio just fine. I'm assuming it's my t con board. Where can I get a replacement tcl 55p605. Thank you

[@stephengilbert8746]

I have a haier 48d3500 TV with backlight issues. I measured the voltage on the LED outputs and got 66 volts each and not the 130 or 100 as you mentioned in the video. I have sound and I have a picture that can be seen with a bright light against the screen. I don't have an LED tester so that's why I'm asking your opinion. Power Board or LED backlights?? thanks

[@eyerusalemnigatu9630]

Can I use regular multimeter to test the the led lights

[@jrudasill]

I have a VIZIO E480-B2 with no picture and no sound. The power light flashes and then goes solid. I checked voltages on the board as suggested and I think the power board (DPS-167DP) is good. The caps all look good, as well. I did the flashlight test, but couldn't see anything on the screen. Would this indicate the t-con board is bad or is there something I should look at? Thanks for your help.

[@dinamweyessa5480]

excellent! but my Tv shows the brand name and the trrn to back , may you help me?

[@kylerstephens9057]

Oh man, you are the best! I have the exact same model as in the video and have been suspicious the LED lines were the fault, but had no idea how to diagnostically confirm until this video. Thank you!

[@kolly20xx25]

Hi ,I want to ask if all LCD back light for 32inçhs is the same for all brand TV.

[@BomJimmy]

Thank you

[@kangs5826]

Good job...

[@rasmekonenn4038]

I have a 42 inch Bush tv model bpdp42hd2 tv it looses transmission turns itself off and turns itself on regularly , I would realy appreciate your help ☺

[@Steveh112]

I'm working on a Sanyo DP42d3 with a similar problem, everything good but the backlights don't light up. On the power board, there is a 4 pin connector for the LED strips. The center 2 are connected together and the outside ones are labeled LED + and LED -. Measuring from LED + to ground, I measure around 240VDC, measuring from LED - to ground I get around 24 VDC, both with some fluctuation. BUT if I measure from LED + to LED -, I don't get any voltage between the 2. The positive side comes directly off of a diode in the power supply, but the negative side goes to the end pin of a little surface mount IC on the back side of the power supply board. It seems to me like I have a floating ground and that IC or something in the LED driver section of the power supply board is bad. Does this sound correct to you, or could I have a bad/open LED? Thanks

[@johnnurutotlashopallelectr6543]

I love you work bro

[@errmaliabdulhamid2062]

very nice thanks alot

[@rollsroyce2004]

Does this work for RCA? I tested my screen with the flashlight and I could see the picture. I hate to throw the tv out

[@fluffy_preacher]

Having a tcl 32" roku tv that was purchased open boxed from Walmart, was on its screensaver and the screen just went black there is sound backlights and the t con i believe is working cause i can't see any image with a flashlight and if the tv is reset there is a picture of the tcl roku image but just a black screen afterwards

[@hassanbakkali3785]

We have to do all these tests with the power cable plugged into the wall but tv off, right ? (Except for the points at 2:45 min when the tv should be on).