LG Plasma TV Clicks On And Off But No Picture 50PK550
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- Опубликовано: 27 янв 2023
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Nick, I am not electrically competent so it’s a breath of fresh air to watch your video repairs.
As I do not possess your talent what is the least problematic TV I could purchase based on the type of TV you have the least issues
Unfortunately it is very hard to know as only time will tell. Because of that I would recommend older TV's like some of the 2013 4k TVs from Sony we very rarely see come in for repair or some of the Vizio 4k P series from 2018 and 2019, it's rare to see those come in for repair and they are of good quality.
I had a Vizio in their early years....I believe 2010-2012 model and we just got rid of it towards the end of 2023 not because of malfunction but because our toddler cracked the screen. It worked flawlessly all those years without any hiccups 😢
This Video saved my TV. I have managed to follow the instructions and fixed my TV myself. Thanks a ton
Glad it helped
Had this issue happen to my LG plasma TV last night. Found this video and it helped me out tremendously, a broken solder on the back just as in this video was my issue. Redid the solder and it works fine again :D thanks for the informative video!
Glad it helped
My tv is Korean have power only mark red light but dont turn on and have clicking sound at the back, wat to do or cause of problem
Just wanted to say Thank You, So Much, for a very well done and informative video. Great video of the work, along with clear and meaningful explanations. I was able to save a Samsung PN59D6500DFXZA 59" Plasma TV by looking for cracked solder joints on the legs of the transformers on the power supply board. Found 2 - resoldered them, along with others showing stress. TV is working great. Thank you for your lesson on cracked joints. Very well done !
You're very welcome!
I thought plasma tv's were a thing of the past, i imagine circuit boards and/or parts would be hard to come by, especially nowadays, with that said, great repair vid, you seem very professional and well organized.
Jason,
Thank you for watching, glad you liked he content.
Yeah I like plasma sets, I know they got a bad marketing rap but they were the king of TVs.
I still have a Samsung PN64F8500 plasma TV at home as my primary TV. It just has better quality than the 4k ultra high end Sony set I had before which was the XBR-65X930C. I actually got ride of the 4k sony and put an older plasma instead since it had better quality picture.
The colors and blacks are just better on plasma. I could spend close to $2,000 on a new OLED TV but I don't see the need since the only difference between my plasma and an OLED is the OLED is 4K. There is just to little 4k content out there, and sometimes when I did find the 4k content with the Sony TV, the TV would downgrade the picture to 1080 otherwise it would have buffering issues and need to pause the show or movie. But even without that issue, 4k with normal LED TV contrast doesn't beat 1080P with plasma good contrast.
They are, but the are unmatched when it comes to IQ for your money and input ports in 2024. You usually get 3x SCART, 4x HDMI, wide colour gamut (P3), great motion and blacks for like 20-50 bucks. No LCD TV comes close below 500€, and even for OLED it is tough to beat.
Thanks for sharing, pls where exactly did that jumper wire enter?
I don't think I can explain better in a comment than I did in the video. I recommend rewatching that part, this is the time stamp.
ruclips.net/video/PawPbJVsk34/видео.html
Do you have the TV open and following along with the video? That may be useful if the set is open and you can follow along.
Hey Nick. Great video thanks. I have this model LG with this same symptom. I have disconnected the main board from PS, disconnected the LVDS ribbon from the logic board and jumped the two resistors. The color pattern test works. I am hoping that it's a 100% probability that the problem is the main board but I'm guessing that may not be the case? Is there anything else I can do to test the main board now or should I just go for it and replace the main board and have a good confidence that will fix it?
Hey Joe,
I already replied to your email and saw you found out in the end that the same issue had in fact occured to your TV as well. I wanted to take the opportunity to point out to everyone as well that this is going to be a common fault and it will be rare the mainboard is actually the issue, almost alwasy with these types of symptoms you will find out the power supply is the cause.
@@NicksTVRepair Hello Nicholas. I followed your advice, pulled out the power supply and checked for bad solder joints and sure enough, there they were! I cleaned up all of the solder joints on those transformer legs, added fresh solder, and the TV works perfectly now. You are the man! Thank you very much!
Привет,подскажи пожалуйста,как ты запустил проверку матрицы?Расскажи поэтапно,я не могу найти информацию.Какие резисторы ты замыкал?У меня такой телевизор.Щёлкает 3 раза и не запускается,и так по кругу.
Excellent video!
Thank you very much!
Hello, great video. I have the same issue with a Jan. 2010 LG 50PJ350=UB Plasma TV. The power supply is brand new and so are the X-sus Y-sus boards brand new and their buffer boards also. It's just making a clicking with a small red light blinking on the main board. I'm now thinking it's a bad main or logic board. How do I determine which is bad? There's not much more to replace now. Any advice will be greatly appreciated. Thank You.
Do the color pattern test. Are you able to get it? If yes then replace the mainbaord, if no then one of the "new" boards you got is bad, most likely the power supply just like in the video.
@@NicksTVRepair Thanks for your prompt response. No, can do with the color pattern test. My logic board and cables are different and I don't see any jumper holes in it. Is the red blinking light on the main board an indication of anything? I can't see the power supply board being bad I bought it new from a reliable national company. Thank You.
When you check the other boards, do you keep the jumper on the logic board or do you connect the main board back?
If using the jumper allows the color pattern test to come up and the color pattern test stays on without any issues, then there is no need to keep checking bords since you have confirmed the mainboard is the fault.
However, if the color pattern test doesn't come up, then there is no need to keep the jumper in there as it won't do anything for you at that point.
Such a contrast ..ive been given a plasma 60 inch same thing clicking ..another video guy reppaved a sustein board (clicking ) ive rekoved power board so ill take another look at the solder joonts in the morning . Ty great video
Kevin,
We fix all boards for all TV sets. If you can't seem to revive your set on your own, send us an email directly or go to our website to fill out the contact form. Make sure to provide your model and a full list of symptoms/what's been done so far and we can maybe help you from there.
If it requires high-level soldering or troubleshooting, then you can send your circuit board to our repair shop and we can fix it for you. We have flat rate fees for most of these boards, but if we don't for yours we can typically provide you with a quote before you even send it in since we are very familiar with almost all of these.
@@NicksTVRepair I've found the culprit a small blue 1kv capacitor blown easy fix on the sustain board
You make it look so easy that I'd give it a try if I had the tools 😅
Thank you for the compliment!
Hi Nick I have a samsung plasma I have sound but no picture and I suspected the Y main, I got a new y main and it showed the picture for about 2 min and it faded out. I now think it's the y buffer boards because I think they have a lot to do with the Y main board, the y main board will not even get warm. I have sound but no picture. and I think the bad buffer boards just blew my Y main board, any advice?
Sorry unfortunately with the information provided I can't help you. It's possible your Buffer boards are bad, it's possible your Y-sustain went out.
You will need to do live voltage checks to see which high voltages are missing. You may also want to check and see if your buffer IC's are shorted using a multimeter.
Hey buddy, keep the great work up,
Thanks, will do!
@@NicksTVRepair this is your friend from Louisiana
@@noelharris1600 Hey!! Yes how are you! Thanks for watching my videos!
@NicksTVRepair you're welcome buddy
Pls can you elaborate on the jumper cable i.e is it your idea or LG documented repair tip to get test pattern.Pks excuse my ignorance.
This is most definitely not something I came up with. Shorting out those two points simply triggers the Logic board to create a color test pattern. This is a program built into the Logic board so that you can remove the mainbaord from the set for troubleshooting purposes. This way if everything works with the mainboard removed you can confirm the fault is with the mainboard and vice versa, if the color pattern test doesn't appear, then you know the mainboard is not the cause of the fault.
@@NicksTVRepair we don't get access to service manuals in South Africa so thank you for these tips and tricks.I will be recommending your channel to follow techs in S.A.Have you come accross a Samsung LCD that comes on and displays picture without first being on standby at plug in at wall socket?The set then shuts off after a few mins.The owner said that if left plugged in set will come on and work for a day then problem resurfaces.Thinking faulty micrcontroller on mainboard or lose solderballs.
Does anyone work on plasmanian devils anymore? back breaking house heaters. I fixed one and could even get 20 bucks for it. Does any LCDs have built in screen tests?
Yes we work on them still. But we only work on them to fix customers TVs. We never buy them to resell because people that don't own one right now don't know how good a picture they have. People that own them know and don't want cheap 4K Roku TV's they want their high quality plasma.
So we fix them, but we would never buy them to fix and resell as they indeed don't sell at all.
Thanks I have same tv.. no issues for over 10 years. Now I have a green line over to side doesn't affect picture
Are the lines vertical or horizontal? Do the lines appear if you run the color pattern test? If no then you may have a mainboard fault. If yes, then maybe one of the buffer boards is bad if it's horizontal lines and could be a panel fault if they are vertical.
I got a Plasma LG 60” that clicks but not intermittently and has no display (not even lit). I’ll be digging around the PS to see if I have similar issues, if so thanks in advance lol.
Disconnect the Y-sustain, and plug the set back into power. Does the clicking still continue? No, then your Y-sustain is your fault. Clicking still continues, keep the Y disconnected, and now also disconnect the Z-sustain. Same thing, clicking stops? If yes then Z-sus is the fault. No then disconnect the mainboard next.
And as Sherlock Holmes famously once said "Sir jeanious2009, when you have eliminated both the sustain boards and mainboard, then only your power supply remains, however improbable, must be the fault.
Amazing!😮
Yeah I actually was thinking it was going to be a different failure before we started filming and that took me by surprise a bit.
Hey Nick I have a problem with my LG TV 55 inch plasma it’s a 50PK540 just been replacing boards on it replace the main board power board y bored I believe it’s called A The board and two buffer boards that connect to the Z board it clicks turns a picture on for a split second and then turns off what could that be thank you
You are most likely buying defective boards.
Have you watched this video? It has the answer to what you are asking.
All you need to do is follow along the video and do what I do. If you have a different fault, it will at least help you identify if the power supply or mainboard are faulty. If you are unable to follow along because for example you don't have a multi meter, then send me an email or contact us through our website and we can discuss ways that you can send your boards to our repair facility which we can then troubleshoot and fix for you from there.
I have an LG Toshiba 50PK550 tv and I have a great picture and sound but keep hearing this chirping, beeping sound almost like the old AOL start up and looking in the back I see two green LED's on a board where the center holes are on the back plate that SEEM to be blinking with the sound, the sound starts off low then gets louder after a few minutes...can you tell me what that can be please...Thanks.
Sorry unfortunately the information you provided doesn't help me. What board are you referring to? Can you tell me the name of it? Can you provide me with the part number of the board in question? Is the noise coming from that board or is it coming from somewhere else and the only link is the blinking light is occurring at the same time as the noise.
If you disconnect the speakers from the TV does the noise go away? If yes then use external speakers and see if that resolves the issue. If the noise does not go away then most likely whichever board the noise is coming from is about to fail and should be replaced.
I got a free Zenith Z50PT320 plasma which is made by LG, the voltages are ok, the TV stays on with the Y sus unplugged, found multiple shorted parts on that board, how likely is it that the buffer boards are bad? They are pricey, If I can't repair this TV with a few new parts its not getting fixed.
I am sorry I don't have a how to test a buffer board video available. But it's an easy check with the multimeter. You use the back of the buffer IC's with one lead and then swipe the connectors with the other. I understand this explanation is impossible to visualize and a video would make more sense.
I couldn't find any video that did it in a way that was universal, all of them seeemed somewhat specific to a brand or type of buffer but you can check out other youtubers and just type in "How to test buffer board" and it should bring a few different ways to check.
@@NicksTVRepair No I get it, checking for shorts, usually the chips will have a burn mark, need to read more datasheets on these chips, but like CFLs, not something I'm gonna be fixing. I have a CFL with no lights, the chopper IC is dead, that's fairly simple.
good jb
thank you!
i did the jumper trick when i plug power back i heard a click once but you dint i have check all solder and all is good :( on the va i got 60 and the vs 186
This rules out the mainboard then from being the fault if everything was done properly as you should have gotten the color pattern test. If you get good voltage output from the power supply on the VS and VA then it means either your Ysus, Zsus, buffers, or Logic board are at fault.
narrowring it down from there will be a bit more difficult. I don't have a video to guide you further unfortunately.
Ever heard of a Pioneer Plasma? same pioneer of stereo fame in the 70s, they seem to be excellent TVs, I've only seen two. I had a man with one he wanted to fix it, I actually found a service manual for it. He wasn't comfortable enough with my knowledge. Repair shops want a fortune to fix it. I know I could, but hes too attached to it. I might burn up his baby. I may have failed at fixing some but I never destroyed one by letting out the magic smoke. Vintage stereo refurb is worth getting into, all the old shops are gone, what you do is the key, variety.. Need equipment, money is my only problem.
I have heard of them but have gotten very few in the shop. They are great TVs, but unfortunately, we don't fix them because finding replacement parts for them is very hard. We also never got enough requests for it to make sense for us to try and fix them on a component level.
Good 👍 👍 👍
Thank you 👍
Ok I made it as far as doing color pattern test and now my tv turns on and shows different colors when before was only clicking.
Means your mainboard is defective then
Found this and was so excited the issue would be this easy, but alas - I found no cracked solders. I even popped off the YSUS and ZSUS with everything looking fine. No burst or swelled capacitors that I can see. I have a 60PA6550, but my issue is slightly different. Will power on and get picture and video. After maybe 10 min, it clicks and the power cuts out. Turn the TV back on (from the remote) - no screen, but sound. If I leave the TV off say 20-30 min, it will power on with audio/video. It could go hours working fine and I turn it off for the night, or it will go 10 minutes....CLICK. Powered off. Power on. No video but sound. Thoughts of what could be "tripping it to power off" and no video but audio when powering it right back on. Short on the main board???
In fact, it literally just did it while typing this comment!!! No signal was cycling on the screen and then powered off. Red light on the main board dark. Was on 10 min or so.
You most likely have a failure with your Y-sustain. It's probably the same fault, except that the cracked joint will be much harder to find as it could come from one of 100 different components. We also fix those if you did want to send in your board for repair you can check out the listing linked below:
nickselectronics.com/products/ebr73712701
I got a 60" LG plasma today, another freebie, the screen goes black after a hr or two of watching, turning the power off then on fixes the issues temp, screen goes out shortly there after again, sound is present all times.
Haha I have heard that before. My LED's went out on my plasma.
What is the model of the unit? Just like in this video, we often see that type of fault be due to cracked solder joints. However the cracked joints aren't always on the power supply, sometimes they are on the Y or Z sustain.
Often I check transformers, and any component that is screwed into a heatsink or shares a pad with a component that is screwed into a heatsink as that is where all the heat is and the most likely area there will be a cracked joint.
@@NicksTVRepair LG 60PN5700, I've had it playing for 5 hrs now, it went off about 4 times, each time I can turn it off and back on and it works normal, now that has been playing a while it hasn't gone off at all. weird. Checked voltage VS and VA while the screen was off, both ok. When I say the screen goes out, its as if the TV was off, no faint glow, nothing.
@@NicksTVRepair I think it was just dust buildup, there was moderate dust in the TV, I cleaned it up and now it appears to working normally. unless its F-ing with me.
@@NicksTVRepair This LG plasma had a moderate amount of dust in it, across the main caps, that had to be conducting some current, black soot lightly covering areas around the power board and Y sus, I removed each board, did a visual, reflowed some joints and cleaned them, especially Y sus, cleaned the under the boards, on the TV, now it seems to be working ok, fingers crossed! The boards for this TV are fairly pricey, might be more money to sell them. Its a HEAVY BITCH!! I have to stop taking plasmas. I have the zenith I mentioned, mosfets shorted on the Y sus, and a CCFL with a bad CCFL power supply, simple fix but I want to do an LED conversion, see how it goes.
That broken solder joint was exactly what was wrong with my LG plasma tv
Hey nice to hear this was able to help you out!
Hi Nick. Have a 50PX990. Powers on marking the usual clicking but displays nothing.
Pressing buttons on front the light in the corner flashes but still nothing.
Did your trick with R52/52 and I get the test patterns.
Is this definitely the main board and simple swap out or is there more testing needed?
Thanks in advance!
Also checkes voltage and was 199 volts which I assume is good enough? (this is a UK model)
Yeah if you get the test pattern with the trick I showed then for sure it's a mainboard. No trick to it just a swap, that one should be plug and play.
What voltage are you checking? Incoming AC voltage or VS output voltage in DC volts from the power supply to the sustain boards?
Me thinking I could fix this at home
You might be able to if you have a soldering iron and the time.
Alternatively you can always ship out your defective parts once you confirm the defect as you follow along in the video and we can take care of the more techincal part of the repair for you.
Perfect, I was going to ask if that is possible! Thanks
This TV is utter rubish, even when fixed. It is nowhere near a Panasonic Viera from the same time. These plasma's have horrible banding, image persistance and bad colour calibration out of the box. Also full white the output gets greatly truncated so full white will look very dim. If you consider getting a plasma for gaming or watching film, never get an LG.
I do agree that the Panasonic plasma sets were better, I also think most of the Samsung plasma sets were not that good either unless you got their top-end sets like the PN64F8500, that one is the only Samsung plasma set that I liked. In fact, I think it's the only one that rivaled some of the Panasonic sets.
You’re on drugs. Mine lasted 15 years
@@randycollens2681 Lasting ≠ being a good product.
Hello there, I'm just inquiring about a LG TV model: 42LG60FD-AA . There is no sound at all the picture is good, is it able to be fixed at all?. Thank you ✌🏻.
P.s. Very nice tutorial straight to the point, easy to follow and very well presented "a Ten out of Ten" Good Sir, I tip my hat to you 🫡👍🏻👍🏻👍🏻👍🏻👍🏻👍🏻👍🏻👍🏻👍🏻👍🏻.
No audio is usually best fixed by using an external sound system. Often the internal speakers on a TV are mediocre, this is usually the best opportunity to upgrade your set with a sound bar or sound system. I would first check to make sure your headphone and or optical ports work and if they don't you can always use a receiver, plug in your devices into it, extract the sound first, and then have the video run to the TV.