LED LCD TV REPAIR GUIDE FOR FIXING COMMON TV PROBLEMS WITHOUT A MULTIMETER !!!
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- Опубліковано 18 лис 2017
- 10 best ways how to troubleshoot and fix LED LCD TVs without use of a multimeter or volt meter This TV repair service guide should help, I have been a tech over 10 years and I offer FREE tech support videos for LED LCD TVs no power, TV turns off, no signal, lines on the screen, no picture, black screen, no backlight, bad colors, no sound, and more!
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TV repair list- • HOW TO REPAIR / FIX EL...
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Hi, I'm Paul an electronics tech from NYC area but live in Tampa bay area currently aka Tampatec, I post weekly usually on the weekends. My Howto tech channel is aimed for the novice tech or anyone that wants an easy to follow tech guide or wants to easily learn how to setup, use or fix their electronics. whether it's LED LCD TV, tablets, phone repair, home automation setup, Google Home, Chromecast guide, Echo dot tutorials, just to name a few. I'm here to help for free, just subscribe.
* When working on electronics act at your own risk, follow your electronics safety manual and / or NEC safety codes, unplug power and properly discharge capacitors in circuit safely.
I believe in this famous quote- give a person a fish they eat for a day but teach that person to fish and they will eat for a life time.
Thanks for watching and your support! - Навчання та стиль
4:08 if TV is turning off because Tcon board is shorted then TV will shutdown to prevent further damage. if Tcon board is replaced but still TV shutsdown you may have a bad LCD panel which is common on older Sony KDL LCD TVs (some Sony LCD panels were recalled) Get TV boards at goo.gl/dkHfDD or electropartsonline.com/ use code "tampatecfriend" for discount, (one time use code) check here Sony LCD TV error codes tampatec.blogspot.com/2015/03/sony-bravia-kdl-lcd-tv-error-codes-for.html?m=1
#commonTVrepairs #TVrepair #howtofixLCDtv #howtofixLEDtv #Tampatec #tampatecTV #fixbrokenTV #fixbrokenFlatscreen #TVboards
Please I need your personal number
Tampatec thank you for the information I really enjoy your videos thus far. I replied in an older 'Sony post but have yet to hear back from you and I still have my XBR65X900C not working. I understand your a busy guy but I have already replaced the LED Driver board per your videos/sony's service manual and the problem still exists. I am looking for the next board to replace but need some insight if your willing to help. I have seen a grip of my model TV with the exact same issue. Any help would be great. Michael
In case you don't see the post in the other video, my problem is my XBR65X900C starts to turn on but while the screen is still a dull grey or the android sign is loading the screen will alternate led lights along the bottom from one side to the other then shuts down and 4 blinking red lights. Like I said above LED Driver has been replaced. Whats my next move. Thanks again. Michael
Tampatec .
Tampatec I think my backlight is broken. I have black shadows over most the screen. I've heard it could be just a loose wire? Please advise
Out of the majority of videos posted online yours man are very clearly explain. Well done
All great information that I will keep in mind the next time i have any trouble with my flat screen tv. Thanks for sharing.
Amazing, great minds think alike... I just had to get a new multimeter. This is great info about televisions! TampaTec Rocks! 👍🏼
I saw that Bolts 3rd jersey in the reflection and of course the t-shirt you're wearing. LOL I did get my TV working thanks to your videos. You don't even know how much I appreciate you taking the time to make them.
Very great tips I love messing with this kinda stuff 👍
Great job your videos have taught me a lot wonderful tutorials only thing I've never been able to find is testing voltage regulators and transistors for Vizio back lights for strobing issue
Nice n step by step explanation of all sections of led tv n trouble shooting.thanks for sharing useful video.
Tampatec you the man just wanted to say thank you
Best tech! You’re top tech ever.👍😜🤓
Great instructional video young man! You have the natural "knack" to share knowledge... consider if you may, place your teaching skill in a 3 series books on how to repair TV, e.g. beginners, intermediate and advance course and a bonus book on TV Tech instruments most use... just an idea... I know there will be many young men and old timers like me that would be interested in reading it as well... we always learn everyday and I have learned and I am sure I will keep learning from you... in any event, as always, I do enjoy your videos very much... BTW, the snowy picture brought me back to the days when my dad repaired TV and radios before retiring in 1972!!! Joe-K4JGA - JGA Electronics Repair Center, Casselberry, Fl.
wonderful solutions. Really i Like your video. You Fixed and Clear every problem. Thanks for nice videos.
Very informative and helpful.
Thanks to your videos. I was able to replace blown caps on vizio my power supply board. It's all working fine now.
CircularMirror7 just replaced 5 caps on my Samsung; now it’s working fine! Thanks TampaTec for the info and for inspiring confidence.
Hey Tampatec great channel, you've saved me a couple hundred bucks already with an older samsung, it was easy to replace capacitors and i've gotten extended life out of an old screen! thanks so much, I do have another samsung, slightly newer that is having a problem now. when there is no source connected, i am able to turn it on, navigate the menu and everything is great. but as soon as i plug in any kind of source, once the picture is about to come through and display, the screen shuts off. it will sit and wait a couple of seconds, and then try to come back on again, but as soon as the picture is on (if it gets that far) it just shuts right off again.
I bet you have already answered this question before, but i'm having trouble pinpointing. I appreciate all your time and effort. Thanks :)
Awesome job bro
Good info Tampa.
thanks for all the helpful vids, fun hobby
Very good information!
very verry verry usefull vidio. THANKYOU.
great tampatec.
GOOD JOB
First thumbs up from me in a long time
Excellent
Nice explain sir.
Irshad Hassan thanks
very nice
Excellent videos!!, thanks for sharing. I have a problem on my vizio, does not have power but has the vizio logo on orange. Based what i learnt on you videos i measured voltage in the pins and the SB voltage of 5.3 is ok . But there is another pin with 12 volts does not have voltage, i do not want to troubleshooting all the components of the power supply. Do you think that the power supply may be the problem? if so my power supply is a revision 2 but the one in the electropartsonline is just a revision 1. DO you think that i can use it without any problem or missing function. any advice is really appreciated. Thanks again.
Sending blessings tampatec Yeah, yeah. Simpson
Since I'm new in field do you have to replace whatever is bad with same exact numbers models or can I use something similar to it . What about colors on resistors?
Nice job on all of your videos. I am currently trying to get my two year old Sony Bravia back to life. It lost all audio and video. I replaced the LED Driver board with no improvement. I then took it to a local repair shop where it sat unattended for two weeks. When they did finally find the time to trouble shoot it they told me that the main board was bad and the repair would cost almost the original cost of the TV. Brought the set home and decided to see if I can find a used but good main board. My TV is a Sony KDL-50W800C The main board is an A2071530A and no one seems to have one except two that I found used on eBay. One of the two suppliers you recommended has one but lists a defect as a cosmetic problem and all functions work fine. The picture of the board is a stock photo so I am a little concerned about the board. Keep up the good work. I am lifetime electronics tech, but have no experience with TV's or the new mico components.
i found this but make sure part number rev number matches and connections match too electropartsonline.com/catalogsearch/result/?cat=0&q=A2071530A
Thanks so much. I think that is the same one that is listed on ebay. I posted a bid, but if that is not accepted, I will order this one. If this indeed does not fix the problem, will they take it back? The boards on this set are very easy to replace. Thanks again for your help. Keep up the great work. I am also about ready for a new Fluke meter. But with all of the micro stuff now coming out, there is less and less chance to fix at the component lever. It was becoming that way when I ended my two way radio repair career.
Nice
good explanation can I get your own hotmial I need your help
Many thanks i found this channel, my problem with my changhong LED TV 28in., the lower channels 2 to 14 are okay, but 15 up disappeared. Tried retune by tv and remote, still same. What board could be the problem. Thanks.
i think your cool i understand you down to earth i dont know how to read one meter
Tampatec - your videos are the best and have helped this DIYer fix several tv's. I have a 40 inch Phillips now that blows the fuse in the power board. If I disconnect all the cables to the power board the fuse is OK when plugged in. I find that adding the main board BA01P2G0401 2 to the already connected Power board BA01P0F0103 3 and tv isgnal board BA01P0F0102 3 causes thde fuse to blow! The fuse will not blow with the power board and signal board connected when plugged into the electrical source - add the main board and pow! Any thoughts?
Hi bro your videos is to good and ur talient ultimate .
Bro my samsung led tv 43 inch headphone jack not working plz make one video on headphone jack repair and replace .
Can i use onother head phone jack on this board if yes plz tell me.
And thanks alot.
Very clear explaning.nice here and very use full.fluke mulitimeters are not avelable in my country and very expensive to buy from the internet.but i havve normal chinese one......😢
Gayan Silva Buy a Uni-T multimeter they very good and cost effective
Thanks.
Ok
Hi Paul,
I have a Vizio M60-C3. The LEDs started going out (or dim) on the left side, 4th row up. Then the dimming sort of spread to most of the bottom row and about half the two rows in between. Other than this the TV works perfectly. My completely speculative idea based on watching some vids is that it is most likely the LED driver board. It just seems too unlikely that bad LEDs would cluster? But I know very little. Thanks for any help you may give.
I had a power surge and now i have zero power and no stand by so thanks to your video im ordering a power supply but oddly i see no burn marks on any circuts
Are there parts I can salvage from an led tv with a broken screen and turn a laptop screen into a tv or monitor?
Thanks for the video. Quick question though... I have a TCL 55” Roku TV. It was plugged into a surge protector during a lightning storm. The next day, it would not turn on. The status light remains illuminated even after pressing the power button (on TV and remote). I have verified that the fuse on the power board is good and I’ve also replaced the main board. Any ideas?
Great vid but I feel like I just arrived in a class that started 6 months ago, lol. Any place to find a primer or place to start that works up to this point? This is the 1st vid in the Repair playlist and I'm already lost.
How about troubleshooting a TV which starts to restarting, sometimes after a few minutes sometimes after loading a smart app. Sometimes it doesn't restart at all and hence works normally. I tried to use a multimeter, in dc mode almost every voltage is showing correct except for 1 which is marked as 5v and loading 3.9v. Disconnected all cables and re-connected them. At his point I don't know which board to replace. What is your opinion?
Thanks for your videos! We tried replacing our T-Con board on our Samsung tv. It had sound but no video. First T-Con board was defective; only 2 of 3 blue lights lit up. Tried a second board and at first had 1/3 of the screen, and then 2/3 of the screen after reconnecting it. Tried a third time to reconnect and only got about a 1 x 2 inches of lines in the bottom left corner that quickly faded. Ordered a 3rd T-Con and got nothing on the screen (except backlights). So we decided to take advantage of Black Friday. :) Now for my question---where can I donate my old TV in the Tampa area. I'm assuming someone could get some good parts off of it. Thanks Sandy
I have a JVC LT-47EM59. Blue power light blinks after trying to turn on. I've tried the "Reset" fix, works until you turn it off again, then needs reset again. Sometimes after resetting there's no sound but I have picture. I opened it up, upon visual inspection everything looks good, no bad caps. I tested voltage to the power led board and get 5v and 3.2v so I think that's good. Since everything else seems to be good, I'm thinking it may be the main board that's bad?? Any thoughts would be helpful, thanks!
LG 50PS60 Plasma. Intermediate sound with no Video. If I unplug the ribbon cable from Main board to Tcon board and plug it back it in I can make the screen work on command. When the screen comes on it is a great picture. All voltages except VS are on spec. Instead of 195 V, they are 183. Thanks for any help.
Thanks for posting. Please help. I have a sheer white screen (tiny horizontal and vertical lines) on the left half of my Seiki TV SE32Fy22. Using as a monitor with my MacBook Pro, not as a TV. I can see through it, but can't use it for detail work. Tried hard reset, disconnected everything from computer (VGA Connection)and from surge protector. Hooked it all back up - no change. So I watched your video and another one and disconnected ribbons from t-com board, cleaned ribbon and contacts and that didn't help. I did notice that some of the cables in various places looked like they had been singed/scorched - not burned all the way thru, but it was alarming. Is there any way I could send you a photo to see if they are burned or if there is something else that would cause them to have black spots? I definitely don't want to have a fire. If they aren't burned, is next step to replace t con board or could it be something else like the main logic board? Thanks!
So I have a LG led tv and there are dim or faint lines (almost like the back light is weaker in these areas) only during motion in certain colors (usually duller colors). Anyway couldn't find anything online about it but I've summed it up to being a uniformity issue but I'm not 100% on that. What do you think?
Hi I have a HP 27 inch curved monitor horizontal lines sometimes move up and down. Is there a fix for this? thank you
I have a Dynex DX-L42-10A 42-inch TV. I pulled it and four other TVs (of varying sizes and brands) out of the dump (I have a guy who works there who sets them aside for me as soon as they come in). This one was working fine for a few days and suddenly this loud static sound started and the TV would turn off after a few minutes.
I noticed a capacitor that is starting to bulge (on its top) on the power board, but was wondering if there was anything else I should look for?
Hello!.. I have an older model 32 inch led tv (element ELEFW328B) from my inlaw. Told him I would try to fix it. It that has sound, and I can see the screen using a "flashlight test", but screen is not lighting up. How to I identify the led driver board? Ps. Love the Tampa themed channel.. I live Seminole Heights.
I have a TCL LED 55P2US how can I check the tcon and the panel board. Sound ok colours mixing.
Yo - I learned more about TVs than I ever wanted to....thanks in part to your channel. So cheers. I work in Low Voltage / I.T. world for a living....so, I'm somewhat tech savvy.....BUT, what I've realized with half of TVs now- is that there's a simpler solution. Just buy a new TV. LOL. The amount of time some of this shit takes, in order for it to be cost effective (with time commitment) I can't say I'm ever going to trying fixing any TV that was less than $600.00. After troubleshooting the T-CON board, backlight circuit to LED driver board, and finally the strips themselves......then determining the failure is likely at the 50" Panel itself after temporarily repairing (so I thought) - the driver board working properly with the backlight circuit. Replaced one LED strip, but do they all need replaced? Can the LED panels themselves just fail after 2-3 years? That conclusion does not seem logical in my case, but not sure what else it could possibly be........Ummm....AND....I think I'm done. Thanks again though. Great channel homie.
Paul, can you help please we have a Panasonic TX-40AS640B the green light flashes then goes solid and then
starts flashing again. It does this over and over again. The boards don't seem to have any test points.
How about a Samsung led 60" tv w blinking / flashing standby and back lights ? I bought a new main board. Next step power supply ?
thanks for the video! really enjoyed the video and found it helpful! Got a quick question! Hope this is the right place to ask. I have a 50" LED Samsung smart tv. It has no picture or sound, but the backlights do work. I replaced the Tcon board and the main logic board to see if that would solve the issue. Still dont have any picture. there has been the random occasion where the samsung "icon" has appeared on the screen, but quickly disappears (this has only happened a handful of times since it went black) Any suggestions?? thanks in advance
Clint McCoy check your cable connections and ground screws on the boards but usually no audio or video can be bad main board. if tv has backight glow, you may have received wrong board version or damaged main board, it happens. if your voltages read good to main board and tcon I would contact the source where you got the boards from.
Tampatec thanks! The main logic board was from a provider on eBay. It was listed as used but working. May have made the wrong move by ordering the used board!
Thanks for the info. I have a Hisense Tv Model LED 32W21. The standby light comes on (red), but when I try to switch it on, the red button turns blue and starts to flicker (about 8 times) and the Tv shuts down. What could be the solution to this problem
Hi Tampatec,
I just joined your channel. I have a problem with my LG 42PG6000 TV. Some time ago, at the time of power-on, the red LED flashed for several seconds (ultimately also 40/50 seconds), followed by toc toc (relay?), Before turning green and appearing on the screen. From today this does not happen anymore, the TV does not turn on anymore. The LED does not even become red, but shines green / red very fast. I wanted to try to repair it myself even if I understand very little electronics. Can you give me some input, please. If necessary I can send you some photos or videos of the defect.
I opened the back panel .....
Thank you.
If this post as 2 questions i apologize, I have an Element 55" with a blue screen and plays sound. Where should i start troubleshooting?
*Tampatec* - Hello. In our city no one takes a plasma TV Pioneer PDP427XD for repair. If you can, tell me where the breakdown is: I turn on the TV, it takes 5 seconds and it turns off, blinking the blue diode 8 times. On the main board, a red diode at number d8402 is lit.
I checked the voltage regulators on the mainboard of the (NJM2846DL3-xx) series with a tester - all the workers. The power from the power supply to the mainboard and from the mainboard to the TV tuner is supplied correctly.
Tell me what else to check ?
Good man but i have a problem with LG TV 3D 42LX6500.it's start logo after that black screen..!!! Any solution..thanks
While checking powerboard on fw55d fungi, it is not marked as stay as in vizio, it does however have 8. As all 3.3v . Is that it?
How do I send a video to you to ask a quest ion about my t.v.?
What about slow motion affects ?
I have a 50" insignia TV and it works for about 3-4 minutes and then the picture goes out but the audio continues playing, would this likely be the Tcon Board?
Hey Tampatec, I bet I've got a problem you can't solve - haha most likely you can though. Let's see! So I repaired my Panasonic TC-55ST30 by replacing the SU board. The TV is functioning perfectly however there's an issue. All 1080p signals are NOT working. I'm just getting an intermittent screen, and nothing else. However the display works PERFECT when I switch to a 720p signal. I'm not sure what to do. Please help me!
Thanks for making these videos!! I have an LG 47LW5700 LED TV. When I turn it on, I hear a click and then the Standby Light flashes very slowly, fading in & out. I checked the standby pins on the Power board...7v. Should be 3.5. None of the capacitors are bulged. I'm wondering, because I'm getting the wonky voltage reading that it could be the Power board rather than the Main board. Did the flashlight test...nothing. No Sound. I looked all over for error codes for the slow flashing standby light. Your thoughts? Thanks in Advance!!
Had same problem with 55LW5600. Took a heatgun to the mainboard BGA chip and it fixed it.
How many volts on the signal cable from the main board to the T-CON board? My boss normally check for about 12v and it works.
Can you please do a video on led screens, how to determine if it's a Samsung or LG TV screen by looking at the tag please?
How about how to do alterations to fix some TV problems.
yes usually it's 12v but can be 24v see here and pause - 2:50
I have an issue with the image sticking and being blurry in one of the corners. Just bought the tv used and I think it may have been damaged during transport. I have a sony flatscreen
Hi ,I got a philips tv 40PFL6606H/12 with red light two blinks.have checked psb got 3.3volts but no 12/24 volts.so what/is the problems .main lge board?
N I got another Sony need to replace t-con board as sound but no picture back light ok
KDL40EX520,learn from your video ,correct?pls advice with Thanks !
I have a vizio 55" with a half black screen. anywhere i can find a diagram which one is the tcon board?
LG 50PS60 Plasma. Intermediate sound with no Video. If I unplug the ribbon cable from Main board to Tcon board and plug it back it in I can make the screen work on command. When the screen comes on it is a great picture. All voltages except VS are on spec. Instead of 195 V, they are 183. Thanks for any help.
I have a Vizio d39h-co I power up logo appears faintly with backlights and then backlights go out but power remains on any thoughts. I replaced power supply board already.
Hey I have a Vizio it turns on everything works normal for like 10 minutes then the backlight turns off I use the flashlight trick and I can still see the TV is on and audio just not the backlight do you know the cause of this is it the driver board or bad LED strips I just don't understand how it can turn on and work and then turn off please help thank you
I have a 65 inch LG TV when I turn it on the other day the top of TV the picture was dark but you could still see the picture and bottom half look normal, just waiting for friend to help me get it off the wall so I can get it part and look at it any suggestions on where I should start be greatly appreciate it thank you
Been watching most of your vids learning way more about a TV than I ever wanted to I have a 50" Sharp with no backlights replaced the power/driver board and the logic board still nothing any ideas before i go bald?
Check the Led strips
Hi Tampatec I have Samsung model UN46B7100WFXZA. My problem is my tv have vertical lines likes rainbow colours and a cloudy pictures do I need to replace the tcon board .thanks in advance if you reply .
I have a insignia 37" led TV red standby light comes on flashes 5 times and goes out sometimes stays on solid red. No picture or sound (no back lights) Have changed pwr board, t-con , and main logic board. Still same issue! Where do I go now?
Just fixed a 60 inch someone tossed. Mainboard was bad, but like to fix it for a back up. Symptom I have is Powers up and stays on no problem, but as soon as I connect video source plays fine or a couple minutes then I get a pop and tv image goes away. Any ideas on what chip I should be looking at on main board?
have Samsung UN55JS9000FXZA, i have back light on and audio but there is no picture. I recently replaced the T-Con purchased on ebay, yet it has not change. I noticed when one connect box is connected to main board, it draws power and the tv switched off and on. I need your technical advice if the tv is worth rescue. Thanks
I have a toshiba 37av52u. The first 3 times it is turned on I don't get a picture and get some screeching. It seems like once it's warmed up it works fine. Your videos are convincing me to pull It apart and look for hot spots on the boards. Any ideas?
+Matthew Berlett sounds like bad caps in main board or power board.
Hi I have the 46b7000 samsung, it has black shadow that start a little in the center and now getting bigger and bigger. What is the common problem and what is the solution?
I was a biginer in lcd TV repair i need this transistor part no. MDF10NG513 TV brand is HAIER can you help me find any brand for a replacemend because store said always NO STOCK. A big Thanks to you
I have a samsung un50f6400afxza. It is having backlight flickering issues. There is a 8 inch band 6 inches up from the bottom. Do you know of any common issues?
54" Lg flat screen when I turn the TV on it just flashes from blk screen back to connect your cable? What should I do first?
Hey u have given me the most info that I can trust so I ask u I have a Sony brivia mod# kdl-46vl160 I came across this TV I would like to save it and I think it's worth it tv turns on and I get a pic but half my screen turns black well like fades into solid black any ideas please anyone
I need your technical help regarding LCD TV Haier LE32B50. By power on blue light comes on but back light does not comes on, after a few seconds it comes on but goes off and red power led glow again blue led comes on , this will continue, means blue on, back light on and off. By disconnecting back light connectors (03) power comes on and remain on, now on connecting back light connectors tv comes on and all functions are ok.After power off after 7seconds tv will not on and shows the same problem. so if back light connectors are disconnected and reconnected then power on otherwise no.
I have a Vizio E241-A1 that was not turning on but the led light was illuminating. I was able to hard reset it a few times and it worked, but now it just lights the front led and wont turn on. I purchased a repair set of boards from shop Jimmy and replace both boards and it still does the same thing, just the led on the front comes on. Any ideas what else it could be?
I Had That Trouble Before When
I Used To Repair Transister Radios
Alot Of People Think if Somethink
Goes Wrong With A Radio Or TV
They Dont Think It's Worth Fixing.
But They Dont Have The Knowhow
To Check For Loose Solder Connections.
hi, i have a samsung lcd 40" tv (la40b650t1), its screen recently started to flicker and sometimes goes blank, i can only see up to jp840, do you have updates on this model/size, thanks
I have a LG 42LD550 that has a red light flashing when turned on. Nothing else comes on. Can you help?
I have a Toshiba 55SL417U that has thin vertical red lines throughout the screen. The lines are pixelated and are not perfectly straight. They do not affect the picture greatly. I have changed the T-Con board and it did not fix the issue. Any ideas?
The video must again. The yea ,and factors. The cool.
My 42" LG 1080p LED HDTV, when I plug in the power cord the standby light comes on red and then turns right back off. normally it would stay red until I turned the tv on and then it would turn green. the screen is blank. I changed the power board and got the same exact thing. Any idea?
Hi I have sound but no picture. Replaced tcon board and still I have the same issue. I pulled one side of the tcon and half the tv turns on
Hello Tampa tech. I want your help! I have a tv(sharp aquos Lc-32le144e) andits not open, only thing that it do is turn on and of the red light. can yoy help me???????
Hi, my Devant LCD TV won't turn on either on the side panel buttons or tv remote control, but the power indicator is lit. Please help. Thanks in advance.
Sir...I need Service manual for my Samsung Lcd, which model no.LA32D580K4R.
Please help.
I have a Panasonic TH-L55ET5K has sound but no picture , backlight is working and I would like to know the problem. Local technician said tv panel no good, fir comment, pl
My Samsung smart TV UN55F6800 shows vertical lines changing to blank as times goes on all HDMI inputs, internal UA-cam apps but it works fine when I use AllShare Cast and mirror my phone. What could be issue? is it T-Con board or Control board ?