60in LG Plasma Tv Repair Has Sound and No Picture!
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- čas přidán 21. 10. 2018
- I am not a Tv repair man but this is how I fixed a 60" LG Plasma Tv Model # 60PZ550. The tv didnt show a picture on the screen or didnt have any sound but later after fixing it I found the internal speaker was turned off in the settings. I ended up changing most of the Transistors/Mosfets and the fuse. I did manage to change 1 IC chip but dont think I needed to. I will also say that a few days after the repair that I probly didnt do a very good job at soldering the IC chip and the tv started showing a bunch of lines on the screen and then went blank. So I rechecked my work and replaced the IC chip once more and also 1 mosfet that must have burned out from the IC chip that wasnt soldered great and then the Tv continued to work.
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I've been searching CZcams for a video on how to ID MOSFETs that may be shorted to ground to fix my old 2010 Zenith LG Z50P J240 Plasma TV. Looks like I've found it! Thanks for making technical information understandable. I'm officially giving you an honorary teaching certificate for your simplistic teaching methods. After 40 years of teaching as an educator in public education, I think I can officially bestow this honor on you. Thanks for the information and continue using your knowledge to help others.
You're not a TV repair man, you're a knowledgeable electronic technician with good all around troubleshooting skills. Several "TV repair men" here who don't have the skills to do component level repairs. As an I and E tech, we call them part changers. They'll keep throwing other people's money at the problem until it works. Great job! Thanks!
HAVE WATCHED GOBS OF REPAIR VIDEOS, NEVER SEEN ONE WITH SUCH A CLEAR AND CONCISE REPAIR PROCESS AS YOURS. WELL DONE AND THANKYOU!!
Thank you very much!!!! And thanks for watching!!!
Not bad for a measly airplane mechanic! I love watching folks like you with a talent for fixing anything. New Sub.
Thanks Man! ✈🔨🔧🔩🤣🤘
how did you examine the ic chip?
is it shorted to ground? so it's bad?
This is the best info, cleaned,inspected, tightened screws and there you have it.Thank You , Thank You, So COOL
Thanks for watching and glad it helped!
mast bhai..dil jeet liya tumne...what i mean to say is every thing was perfect...sound concept, photography, narration ..a total 10
I finally find someone who actually shows how to fix it properly but it's a diffrent tv
Thanks man!🤘
Thanks! I used the kit you listed, had the exact same problem on the same 60" model, and got it working 100 percent.
Nice!!! Glad everything went well!🤘
Hi were did you get the kit from please
DUDE awesome work!!
Thanks Man!⚡👌
Hi Joe, maybe is better to remove first the residual white thermal compound before to apply the arctic silver compound. The less of compound the best it works, the wide ammounts lose thermal efficiency.
Congrats for your repair, enjoy this plasma!
BOOM!!! WOW! GREAT JOB!
Thanks Man!!!💥🤘
Wow, excellent video, very clear, well explained. I see myself watching you, not that pro, but some part of it. Many thanks from Chile.
Thanks for watching!🤘
Nice job! Who would have thought. I used to know guys that repaired to be old style TVs and they all just kind of went out of business when the flat screens came out. They acted like they couldn’t be repaired. Maybe it is a lot more work than it used to be but often times maybe its something simple.
Thanks Man! Yeah I use to hear the same thing! Lately it seems the tv's I get are easily repaired. Sometimes with used parts laying around!
Excellent another TV given a new lease of life well done buddy
Thanks Man! I cant say no to the bigger TV's lol😆
Nicely Done, did the same to my 60PV450 plus the tiny Resistors...Great fix! ...the need to fix things... 2A571 KC-135R
Thanks! I almost changed everything but felt it wasnt needed. (Edit) I went to tech school for the same! Meow I work at Offutt AFB as a civ on the RC-135's🤘
Best video I've seen so far on this subject. Finally someone that can explain clearly and concisely with excellent video.
Thanks Man!🤘
Please make more tv repair videos! Thank you!
Need help
@@AveRage_Joe 😳
What cha got?
Thank you!!!
Hey fellow aircraft mechanic/hobbyist! Great style and thanks for the vid!
Thanks Man and Thanks for Watching!!!💥😁👍
Quick question: What’s an acceptable +\- on the main voltage. I’m 2.2v under on my Vs (201v)?
@@saseboy Sorry for late reply, that voltage should be just fine!
Thank you for your video!!!! Just got the same Lg plasma from my colleague and the screen doesn’t show anything but there is a sound! So it will be my first time on trying fixing a Tv especially after watching your video!!!
Awesome! Good luck on your first tv repair!
Did this fix your problem?
Fantastic video...thoroughly enjoyed watching this and used this as a guide to fix my LG tv ...clear concise information!! Thanks a million for doing this!!
Thanks Jason! Appreciate that!
We really need to get you a dual trace scope. It will tell you if the cap is bad when physical inspections give you nothing. Good work Joe!
How bout one of those kits from ebay?
Id love to get a scope but wouldnt even no where to begin on how to use one lol!😜
Good Question!
Very impressed with your skills.
Thanks Man!
I found your video very informative. I have a 9 year old LG60PM9700 plasma TV that the picture wouldn't come on. I took the lazy way out & found a new Z sus & power supply board for $72 & put them in. The TV works fine now. Thanks for the instruction on how to disconnect them.
Awesome! Glad to hear you got it fixed!!
Where did you buy power supply boards from @webernardsr
Thank you that was a useful explanation..
Thanks for watching!🤘
EXCELLENT SIR!
Thank You!
Nice Video...!!! Looks like my nephews are getting a brand new TV for Christmas...!!!
How many nephews?😆💥👍
4...!!!! Lets go shopping lol...!!!
Very nice job, a broken 50“ Pioneer plasma is waiting for me, same symptoms there,. I didnˋt even hear about repair kits before, i always bought the broken parts one after another 😩. Should make my life way easier, thanks my friend, hoping to see more from you!
AWESOME!!!! Yeah Ill usually search for a repair kit to give me an idea on what parts to even look with some of the newer tvs lol. Good luck on your tv repair and YES Ill have more tv repairs in the future!🤘
@@AveRage_Joe I have the same TV as in this video. I have sound, but no video. Is it possible to buy just a whole new board (as opposed all the soldering & what-not)?? I don't have all the equipment and skills/experience for a bunch of intricate circuit board work.
Yeah you can usually find them. Try shopjimmy.com for good used boards.
Also many thanks 🙏🏼🙏🏼🙏🏼🙏🏼🙏🏼🙏🏼 for the video. Best repair video by far!!
Thank you!!!🤘
Great video - well done!
Many thanks!
Thank you! New subscriber.
Thanks!🤘
i liked your lessons - thank you Sir - KEEP IT UP!
Thanks Mate!
Hey man! Thanks for the video, lots of good information. Thought I'd provide some pointers in soldering/desoldering for future repairs. For IC's you should always add a small amount of fresh leaded solder to the pins to make it 10 times easier and faster to remove with the hot air. Also, you should avoid cutting leads after soldering onto board. The leads should always be cut to size BEFORE soldering as cutting afterwards *could* cause a bad solder joint either immediately or in the future due to the force applied when cutting.
Awesome thanks for the tips and thanks for watching!🤘
Good work man
Thanks!😀👍
i am among other things a tv repairman although i was out of that a long time ago. i was impressed by your troubleshooting solder rings are not uncommon on any part that gets hot and cold alot, and sometimes you have to look real close to see them as you have found out 80 to 95 % of troubleshooting is visual the creator in the board the legs were a capacitor should be the large ic with the missing middle fire marks on board fire marks on heat sink fiore marks anywhere but in the kitchen the large diameter hole in the motherboard and yes friend of mine actually had that a guy drilled a 1 1/2 inch hole through his xt case the 4 layer motherboard and the bottom of the case so he could install a light and yes he sent it in for warranty repair this stuff happens folks.
Nice! Didnt know that. Yeah hot and cold cycles always seem to loosen something on tvs for sure. People do the craziest things, wonder what the warranty people said lol. 😲🔨😮
basically no not even not happening no.
Salute from Brazil!
👋👋🤘
Great video. Love the cat. I too like repair things so... gonna buy some broken tvs now.
Dont buy them, get them free from side of road or a recycle place!
This video really help me. i was given this same tv to me. i was trying to find out what was wrong with it and my tv was doing the same as in this video. Thanks a lot for the help.
Glad it helped and thanks for watching!
Nice, I need to find a e-recycler here in Houston that is like yours, 💡😉
Another fine how you did it video ! 👍
🤔💭💡💣💥
I really lucked out for sure!!!
You've got great skills.
Great, thanks Average Joe.
You betcha!
This video combined with another where the TV was fixed just by re-soldering most of the connections helped encourage me to try re-soldering the connections on my LG60PN6500 and saved me $200 for a replacement YSUS board. My only major mistake was using contact cleaner to remove the flux which left a white film everywhere. Lots of brushing with rubbing alcohol, a toothbrush and t-shirt scraps cleaned that up. One challenge I have as one who rarely does component repair is finding a good source for transistors, capacitors, resistors, etc. Maybe you could recommend some good sources? From one retired ANG E&E aircraft tech to another, thank you!
Thank you it help me alod my tv has just broken
nice job sir
Thank you again
You bet!
Thanks sir 😊
😃
Good job
Nice one man
Brilliant !
Horus Horus he's our cat................. Well he is actually yours but part of our family,
It's weird when he isn't there........ BOOM!
Nice vid Joe, KEEP IT UP!
It is weird when hes not down there lol!😆😸
Thanks I’m thinking same
👍
AveRage Joe
do you use a magnifier for the chips,( I ask for I did a playstation 4 hdmi and felt if i had a magifier it would have been quicker, edit to say this)
I dont but if I had one I would probly use it for the tiny stuff for sure!👍
Are all the mosfet the same? Could I sub the ones in the link with any broken mosfet on my board. I have the exact model
Good one😊
damn joe, that was cool
Thanks Man!🤘
Help! I touched the service menu. I didn't think I changed anything. How do I (blindly) reset the TV?
nice video. i just subscribed ;-)
Thanks!
Besides the beeping, what numbers is the multimeter supposed to display when you're checking the heat sincs? Mine doesn't beep
Hi,
I have an issue. There is sound but no picture on an LG 50PT353K plasma TV. I have been told that this is a common fault with either the T-Con board (control board) or the Main PCB board? I noticed you repaired a different board?
Any thoughts?
Thanks
We have a non profit recycle outfit here, they only make runs every few months, I asked for the TVs, they said no, they must make sure they get recycled and not thrown in the landfill. If I fix it and resell it it won't, if they recycle it some of it will. People here make a living from fixing electronics, they feel fine stepping on our living.
Hi great video! My question is in regards to the mosfets. Some Y board and power board mosfets also show that they’re grounded. Would they also play a part in ‘no picture’ and also be changed?
Yeah its possible. Also some will show grounded while in the circuit board but once unsoldered will show normal. It does that when some are really bad but I usually replace them anyway since I had them removed.
My 12 years LG LF 37 fullHD had last week a problem in the inverter(..had no picture..no sound..i dont have the skills so i send her to a repair store..he told me he changed the capacitors and some other stuff..now its working again..i paid 40 euros to him to repair the tv..i suppose he took me reasonable money in order to fix the tv..so iam happy..i wish i had the skills to fix her by myselfe but i dont..so iam ok with it..
I wish it was only capacitors!😆
My LG 60" Plasma Zsus board (ebr77185901) put out 4 volts when it should be 18 volts even with the Ysus board is disconnected. Power supply checks out, is there anything I could be missing before I purchase Zsus board???
wow fantastic...
Thank You!
Hey Joe, very instructive and useful video thank you very much. I have the LG 50PZ550-UA which is the 50" model, about 6 months ago the HDMI stopped working and a few weeks ago the sound started to have some issues until the sound is now definitely gone, however, the video still works perfectly. Any recommendation to fix this issue, what chips I would have to change, I tried to find the mainboard but it is out of stock every where. Thanks again.
Thanks Man! Only thing I could suggest is type in the mobo model number online and add sound repair kit or something along those lines. Thats how I usually fix a lot of tvs if there isnt anything obvious.
There is a really cool product called Chip-Kwik that makes desoldering IC's a snap. It is a small quantity of a solder-like alloy that transforms each joint into a low melting point amalgum. The slightest bit of heat melts it and the chips just slide off with no damage. When you want to install a new chip, you have to use solder wick to remove the amalgum, then put fresh solder on all the lands and solderwick that off too. If you don't do this dilution step the slightest heat will melt your new solder.
One of my Patreons mentioned this as well and seems like a cool idea!👍
made it look easy :P
Thanks Man! It wasnt to hard of a repair! Hey did that package ever show up?
LG 60PA5500 here: Takes many attempts to turn on, the red led blinks twice each time it tries to turn on. Sometimes it takes 20 tries, the other night around 100. I leave it "on" with dark screen, sound is coming out. Then I reach over top and unplug and replug power cord until screen turns on after the relay click. When it's on it stays on until we turn it off. Do you know what 2 red blinks mean?
Great Video. Inspired me to try to fix my LG50PT350. Looks to have almost Identical Boards. The Symptom is that it Clicks to come on and stays on and energized. No Click back off like the one in your video. The Main symptom visually is the screen attempts to light up but all RED. Then it goes blank again. It repeats the red screen then blank over and over. You can power it off with the button to stop this behavior. Turn it back on does the same thing again. Do you have any insight into this?
My then 2011 top of the range LG Plasma TV finally failed yesterday (nearly 13 years daily operation). I want to try to fix it. Here are the symptoms: about four days ago the TV just switched itself off. When I turned it on there was no screen. I tried to get it going but I could not. The red light near the switch would turn to blue and the noise of switching on was still there (and the noise of switching off). Then I switched the TV from the socket (from the plug) and waited say one hour. Then it would work but after a while switch itself off. Yesterday it worked all day and then suddenly at night it switched itself off. No effort at getting it to go back on gave results. I remember we switched it off for an hour from the socket (from the plug on the wall) and then it came back but only for 5 minutes and switched itself off. So we played some card games to pass the time last night. This morning at 7 am I went down and switched the plug and then it went on and I was watching TV as normal. Then after 5 minutes or so it cut out again and I could not bring it back. What do you think is the problem?
Hey Joe, you should try eu·tec·tic /yo͞oˈtektik/ solder for your repairs.
This is an electronic rosin core solder, it's TRUE claim to fame is no solder 'plastic' state. A 60/40 soldier has a period between solid and melted, known as the 'plastic' state. The more metal in the connection, the longer the solder may stay in the plastic state. This can be frustrating and often results in a dull connection, or one that looks like a bead on a pin (convex). A good solder connection should be shiny and have a concave curve from pin to the pad, more solder is NOT better.
Eutectic solder is 63 / 37, and when hot enough goes directly from solid to a liquid state WITHOUT entering a plastic state. Provides a more consistent and reliable connection, with fewer browning of the PCB material from prolonged contact with the iron.
Just thought you might check it out, if your not using it currently.
🤓💭👍
Ive heard about that before but never looked into it. Ill have to check it out for sure!🤓👍
So my TV was having this problem where it wouldn't turn on like yours. So I tried testing the heat since mosfets or whatever they are, and it threw a spark, now it doesn't want to turn on at all. What did I do wrong? What setting is my multimeter supposed to be on? I had it on DC
Respect.
Loved your video! I have a Samsung 50-inch 720p plasma tv, mod# PN50C450. It has a colorful snowy picture that sometimes flashes on/off. Sometimes the pic is perfect, but will then deteriorate to snowy. I tried a dvd input, with the same results. It is definitely something wrong with the tv. Any suggestions on what I might try to replace?
Have you thought about building a small airplane? I have always wanted to build one. For some reason I always want to build things. Not buy. If You aren't careful with 200v. You may need to check more than one kind of shorts! Likely liw current. But it don't take much! Keep at it sir Joe!
I always want to build things but an airplane isnt one of them lol. A small one would be cool to have tho for sure. I want to build a UFO👽😆
Your my new best friend 😊
Very good my friend. You should be a teacher!
Thanks Mate!🤘
I have this same tv.
Just got this tv for free lol,10 yrs old still works perfect but only thing is ,it turns off after 40 mins or so,but u just have to turn it back on and your good,I'm happy got it for free,60inch too hell yeahh
Is the sleep timer set on it ?
@@RiseOfTheNew its off,i think it's just old lol
I have an LG 50PC3D with sound, but no video. The screen blinks on and off, with no video. I replaced the YSUS & ZSUS, plus POWER Supply and Main Video board from a working TV that had cracked screen. I still have the same problem. Not sure what to try next. The buffer board is the next possible suspect, or not. This board has unusual ribbon joints, not sure how to remove without breaking. ny suggestions would be appreciated. Thanks
I have a question for you I have a plasma Zenith z60pv220 made by lg also same boards
The TV head picture but it also had horizontal faint black ghosting bars on cartoons you could really tell at the top and bottom now it just shuts off after about 2 minutes any ideas thanks
Just picked up a 60 inch LG 60PV400 manufacture date 2011
Can you recommend where one might get the motherboard for an LG PB5600 60" similar to the green one at 13:26?
Id check shopjimmy.com or ebay. Thats where I get parts and boards!
Hi Joe, my LG pretty much exact the same model as this, just had a stroke down the left side of the screen, I’m wondering if the same part could be the culprit, or would the picture be gone totally ?
Great job on this repair, it’s given me some inspiration to open up and take a look.
Thanks for watching! I cant say for sure but Id pull the back panel if you have time and poke around. Plasma tvs can be tricky or overwelming since all the boards but the repair could be as simple as a loose cable or loose ground screw on a board.
I have a similar 65 inch TV, time to buy some parts....
Much cheaper then taking it in for sure!
YO JOE!!
Dude... some pointers (IF you want them and in case you don't know!!!)
Generally, Plasma Tv's don't actually have MOSFETS on the driver boards. As a general rule mostly they're not transistors at all and are actually two way (three pin) rectifier diodes for the various power supplies on the sustain boards. Also, the ones that are transistors are generally IGBT type so when testing you need to treat them more like BJT's then MOSFETS. (might clear up some strange readings)
It's best to lift one leg of the fuse to test it out of circuit. The reason they're "lying" to you is the tank capacitors at the start of the board. The meter will bleeep for as long as it takes for the meter to charge the tank caps up to the same potential as the meter's "measurement voltage", then the current stops flowing and the "continuity" is no more!
AWESOME VIJAYOH brother!!! The more people start repairing things at a board level (since the repair industry has been pushed out by the chinese pumping out shitty electronics that are cheap and don't last) the LESS CHEAP SHIT ELECTRONICS ends up in land fill.
Program Rant;
Uses NoProfanity, CommonSense;
var purchaser, brandname : String;
TVworks : Boolean;
begin
If purchaser = "buy cheap from china!!"
and if brandname = "cheapest available parts from one hung low market"
then while TVworks = 'true'
purchaser = "be happy, enjoy!"
else if TVworks = 'false'
then purchaser = "MUST HAVE REPAIRED" or "MUST REPAIR THEMSELVES"
else purchaser = "pay's HEAVY taxes for the disposal of CHEAP E WASTE"
end;
end.
Awesome! Love learning new stuff! Thanks Man!!!! I remember seeing IGBT when looking up parts but then for some reason transistor or mosfet stuck in the brain lol. I figured thats why the fuse was doing that cause it only did the noise after turning the tv on then off again. Thanks for the help Man!!!👍👍👍
Hey joe, I have this exact tv. I recently moved it to a new house. It switched on, picture was slightly snowy for a while then it turned off. Very hot around the ysus and a loud buzzing. I checked the ysus for cracked solder like you showed with the zsus but nothing wrong. I can’t find a repair kit for the ysus - would buying a replacement board be fine or too risky that it is something else as well?
I’ve also been told the power points in this old house may be dodgy but the tv has its own protections against that?
Any help appreciated!
doug broomhall interested also
Did you tighten all the ground screws. Pretty much every screw you can find?
AveRage Joe yes I have tightened the screws. Tv will run for about 10 mins with no picture and then switch itself off. I’m not adept at soldering etc but I can replace a board! I recently threw away 2 other tvs and I just don’t want this to go to landfill
what reading did you get from the bad mosfets, I'm getting a 76.3 etc instead of a 0.477
They should be around .47 or .45, anything other and they are probly bad!
Hi can I ask do you have any photos of what MOSFETs gose where. I got a repair kit but took out the wrong components and got them mixed up. I see there is a few different sorts of transistors. Can you help with locations of what ones
Hmm, I try and see if I have extra footage!
wow I wish I could do that. AWESOME.
😆🤘
Need some advice on my Plasma LG 60PV450. Turn on the TV made a popping sound. Turn it off turn it back on again got a greenish magenta ish looking picture. Turn the TV off again only have very little picture Kind of looks blotchy almost like a Dalmatian dog.but I do have sound any advice on what to do. By the way this TV was never dropped. It almost seems like it needs time to warm up. Trying to describe it as best as I can thank you.
Awesome video man, I have the same TV, I replaced a faulty powerboard but apparently my main board is also faulty. Got any tips on main board repairs? Or places to get a replacement?
Sorry for late reply, I would search on internet the model number of the board and add repair kit. Thats how I usually do it!
My lg plasma tv will work, picture and sound then picture goes out with sound still working. You can hear channels changing but no sound. I ran the color test successfully with out the main board plugged, but it would stop after a while ( does color test continue to run or will it stop eventually) is a main board issue
Hi. My plasma TV 42PQ10R-TA having similar problem. After power on, there is a tik-tok sound 2 time then TV remain in stand-by mode. There is no picture indeed.My diagnosis so far...With YSUS connected, no regular voltage coming to YSUS board. If remove YSUS, voltage shows normal. I remove YSUS & check all MOSFET & capacitors. All looks good. Where else should I go next ?
hi.What about a panasonic viera 3D plasma .Can you show me where can be a problem with 3d connection( get blackscreen, with sound when i switch on 3d mode), wich board can be?
Hello Sir, can u tell me which fuse u used? Maybe send a link?
It came in the repair kit! Link in description.
Awsome video. My top 2 fet pins on the black heat sink are grounded. On the board they are connected to ground through a bunch of filter components maybe? On the far right heat sink(around 4:45ish), you said top 3 center pins are grounded, mine are not. All the top legs of the lower group of fets on that sink are though and are direct to ground on the board traces too. I cannot figure out which fets are bad(without removing them all). Voltage to the board is good. My fuse reads good also. Any advice?
Sounds like at least a few fets are grounded. When I removed all mine and tested them out of the board not all were bad but I replaced them all since they were out. Only way to know for sure is to have a in circuit tester or remove fets and test.
@@AveRage_Joe wow fast reply thanks! I'll pull them eventually and check them. Any chance you recorded what should and shouldn't be grounded? Those top 3 on the right heat sink were grounded on yours and not on mine which I can't figure out at all. I'm worried I have some blown component that is stopping things from being grounded when they should be through a resistor or something.
Its been a while since I did my repair but guessing its most likely a few fets on yours too. If those are not shorted like mine then they should be ok. Did you check them all and are any shorted to ground?
@@AveRage_Joe outside pins on the top fet on the black heat sink are grounded. On the board they are connected to ground through a bunch of filter components maybe?
Then the lower group of fets on the far right have a grounded top pin on all but that is correct it seems they are direct to ground that way on the board. I'm still confused why my center pins on the top 3 fets on the far right are not grounded as yours were and you said they should be.
Have you used desoldering braid?
Yeah I do use it and it would have worked great to remove the rest of the solder but I ran out lol. Need to get some more for sure!💥🖒
Good video
sir
I have philips 52 inch lcd , display 15 second with sound but then only sound any solution for this problem
Model 52pfl7432/98
Tnku.
🤘💥
Thanks for the videos. I have a 60 in LG plasma 60PA6550. I had no picture with sound, I replaced the YSUS board with a used one. It worked for about 5 minutes, everything was perfect! Then it randomly lost picture, and turned off...... Since then I have turned it on with different results. Sometimes itll be perfect for 20 seconds then lose picture, sometimes it will just flash at the bottom of the screen real fast right when i turn it on, and no picture...... Any ideas?
You have not yet found your intermittent problem. You replaced a board that was not bad, and then just got lucky the T V started, sometimes it will, sometimes it won't, and it just did when you started it after replacing that board.