Samsung 42 plasma standby power fix
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- Опубликовано: 19 окт 2024
- This is a 2005 Insignia 42" plasma. Model IS-EDPLTV42
Features a Samsung PDP display S42SD-YD05
Set was totally dead, just the red standby light. Learn a few tricks from a retired TV repair professional.
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I am still learning from you at 72 years of age. Had a chance when I was 15 at school but thats another story. Have invested in equipment here in the U.K.
The original ESR meters look so much better than the slimmer versions. The idea of injection a frequency to avoid stray readings or misleading test results is brilliant. Great repair videos 😀
Injection of high frequency has nothing to do with rejection of interference , that is how you measure esr. Capacitors block DC, pass AC. That is how you measure them. Can't measure how a capacitor passes a signal with DC.
Now I get what you are saying. Still like yours better than the new ones.
Yes I know I called the Y sustain board the X sustain. This was actually one of the first plasma TVs I worked on. This was done when I first started working on electronics again after 12 years away from repairs.
I am really enjoying your videos, learning a lot. I have an amazing 3D Samsung Plasma that someone gave me and I am eventually going to be able to fix it. So far I am pretty sure it's the power supply board but I haven't had a day off of work and school to test everything. Thanks for your videos, channels like yours allow people to self educate and that's invaluable to someone like me.
Check the Y sustain for a blown blue capacitor near the little transformer at the top left side looking from the back with the board installed. I have seen a few where that little HV ceramic cap has literally been blown off the board and all that was there was the legs that used to go into the cap. If that cap is blown, then you will probably need a new Y sustain board as it seems to be fairly common on the 3D 50" Samsung of about 2011 vintage. I've seen 2, and neither have been fixed due to the unavailability of that board. (At least there were none available when I had those sets)
12voltvids I will take a look at that as soon as finals are over. It's a Samsung 60 inch f8500 series Plasma 3D TV (a 2013 model). They bought it new roughly 2 years ago for 1,700. When you plug it in the relay clicks once, the screen hums and flashes slightly then shuts off. It stopped working during use. To me it seems like the power supply board must have croaked but I'm not a TV specialist. I will look for that capacitor and check the voltages on the power supply board with my multi meter. I disconnected the Y and X sustain boards independently and together and it didn't turn on in either configuration, just a single relay click when I plugged it in and no response to power on attempts. I will keep doing research and probably take a gamble on a power supply board if I don't turn up anything.
great video buddy,i like your channel because you give us extra information about stuff in general.keep it up.
Great video. I enjoy the troubleshooting videos. I have a Samsung plasma 42 that's clicking a relay on the power supply. I don't see any lights on it anywhere. I don''t have an esr meter yet. But I do have a meter and some basic skill. I replaced some common caps that go bad but didn't fix the problem. It's a Samsung 42 power supply board BN44-00161a .
+cmatthys Check for your VA VS ect voltages. That will give you a starting place. Plasma TVs are complex beasts that have many protection circuits designed to shut them down in the event of a failure someone in the set. In this patictular set it was a capacitor in the standby circuit that had failed, but in the other Plasmas I have fixed since this one, I have had buffer boards go bad, a Panasonic with a blown diode, transistor and drive IC, even a shorted coil in the analog tuner section that prevented the set from turning on. You will need to find a schematic for it, and then it is just checking voltages, and components for short circuits. Sorry I can't be any more help than that, but it could be a number of things, so you have to try to isolate the fault to a specific area. Unplugging the Y sustain and X main boards to rule them out as the cause of no power. With those boards unplugged does the power supply start normal?
It doesn't. I have tried to unhook them one at a time too to try to determine a specific board but didn't seem to matter. It never did turn on that way. The VS and VA voltages seem to be waaay off! I have seen that there are other components like the FETs on the heat sinks that need to be changed as well. I have them ordered. I had noticed that one had a cracked solder joint so I de-soldered and re-soldered but no worky. Waiting on parts now. kit Samsung BN44-00161A / BN44-00162A Power Supply Component Repair Kit
www.shopjimmy.com/samsung-bn44-00161a-power-supply-component-repair-kit.htm
The adventure continues. Hope those little smb cips won't be too hard. that'll be new stuff for me. I recently got the weller little baby blue solder iron. it's got a nice small flat tip. I'm going to search out the schematic and have a go at it. Thanks for the direction.
man this video is just so awesome. Please make more, choose more makes and do videos, please. Great work and thank you.
+Muniro Syed I am. Unfortunately not every device is repairable. I was running ads on Craigslist asking for old electronics that were being scrapped, but somehow that violates craigslist guidelines, and I have been banned from posting want ads. I don't see how that violates anything. All I posted was: WANTED old electronics for use in classroom teaching projects.Free pick up and disposal of unwanted electronics.Somehow that violates their policy. After getting every ad flagged, now my account is suspended. Many of the sets I fixed (every one of those LCD and Plasma TVs with the exception of a few paid repairs) were donated as a response to my ad. But I can't post those anymore, because someone out there kept flagging them. Probably the same jerk off that gives my videos a thumbs down every time. Some goof out there that gets their jollies being a jerk.
+12voltvids There are some real saddos out there, sorry about them. Don't worry about getting hold off a real set, Maybe you could do a chalk/blackboard sessions, with explanations of troubleshooting with pictures from the web. Just saying. Because you seem to have the knowledge and a lot of people would love you to share it. Don;t get down with bad reviews or thumbs down. A lot of people here seem to like your material and your audience will grow I am sure. Thanks
+Muniro Syed Many of the thumb down goofs do it because I run advertising, and a few have told me so, or my opening logo. The logo is there for copyright, because someone took an older video and posted it to another streaming site, and that site refused to take it down.The advertising pays for the channel, so that isn't going away either. At least I don't force full 2 minute ads. Mine are all skipable, which means I make less, but I don't like non skipable ads either and I am just as likely to skip the video if I get stuck in a 1 or 2 minute ad being forced down my throat before I can watch.
Plasma repairing was a really challenge.As the failures are deeper in the various pcb modules diagnostic and repairing is going harder and expensive.Ten years before was nearly impossible for the majority of the service labs to have bottom preheating plates,hot air stations,bga reflow tools and no technician was using flux for soldering.
This was the very first plasma TV I ever attempted to fix. When I was in the business I took a plasma course, but never saw any, and the shop would have refused because they wanted us to spend about 4500 on jigs to power up the various modules for testing. The shop owner wouldn't spend any money.
As seems it wasn't a plasma training repair course but an effort to sell low quality diagnostic tools tailored to one or two models and an endless buying for newer ones and in practice those will never be used by any qualified technician.
@@GeorgeGeorge-xj2bc they pulled the same crap with cd players. Panasonic made us buy the focus / tracking jig for 1500.00 and the next year they brought out digital tracking making the jig obsolete. It was never used but we had to have it to maintain warranty depot status.
This is an excellent vlog. I learned quite a bit from it. One discreet transistors rule. Two, ESR testers are very useful. Three, insignia is actually Samsung, but I know the sales staff at Best Buy will swear they own the Insignia brand and the factory. From your other vlogs I learned how dangerous it is to handle capacitors, but now I am starting to think that Caps wear out more often than other components. So, I should review how to discharge Caps, and I need a capacitance tester, ESR?
saw those swelled caps right off the bat, GF thought i was nuts yelling, "Its those ballooned caps man!!!!", lol
Nice vid! I like it because the inside looks almost exactly the same as my 2004 model. I pulled it off the street yesterday. Tried it out, the blue ring in front flashes 5 times and then it turns on. There's no picture (black screen, but it's not lit (not glowing) however there is sound from the game I plugged into the AV. I opened it up and noticed a single cap on the power supply bulging (ever so slightly, but because this came from a smokers home, there's prolly a lot more wrong with it). I'm gonna grab a power supply off ebay, hopefully that at least gets the screen to light up. Then I can determine if the xy boards are having problems brr...
those electrolytic caps are usually the problem, well done...
@12voltvids This a samsung set branded as insignia. I've seen side by sides in stores and the insignia always looks worse. I know walmart runs one source and splits it so all of them have a degraded signal. But even in places like electronics express where they have dedicated signals for each set, the brands like this still always look worse. For all intents and purposes, it should look just as good as a samsung but doesn't. Why is that?
A really well made video. I did learn a lot from it.
I'd like to get an ESR meter. Do you have any advice on what brand/model to get? I've seen really cheap Chinese ones on Ebay where you only get the unenclosed circuit board - I think I'll pass on that, but the ones that have a housing, any advice?
Thanks a lot, Tom
THOMMGB Mine was a kit. They are still available in kit form.My kit came with the plastic box, and metal face plate. They all work the same.
THOMMGB Thank you.
I need the electrical scheme of the source of this TV so I can trace a piece could you fix it?
All It Was Just A Loose Connection.
Do You Think That's The Problem With My Portable CD Player?
P.S., there is no way to restore the non-reflective coating?
Wouldn't a resistor add to the problem of a bad capacitor. My first repair was a fuse on an old portable tv. I've seen and done short circuits, broken chip legs, rusted connections, broken wire.
I Did That To Alot Of Stuff. Like
Transister Radios I Bought At Garage Sales.
Thriftstores. Samsung's Are Good TV's
I Have A Samsung Tablet & It Works Just Great
& It Holds A Charge Just Great.
Why do all Samsung plasma TV’s buzz so loudly when turned on? Mine has done it from day one.
Mine doesn't. Some of the really old ones perhaps.
Good job sir !
Sir what's the value D9005 diode sub power supply board
A shame someone else screwed the screen up with some weird cleaning method - would have been a good candidate for auction if you wanted to get rid of it later.
Good picture despite the panel damage.
RoughJustice 2k18
I sold the set to a friend. He gave it to his mother inlaw and father-in-law. They used it on channel 3 from the cable box and threw out the original remote. Then we're not happy once they changed providers because the pix size needed changing and remember I said they tossed the remote. So they sent it back to my friend and he wanted me to take it off his hands and sell it again but no remote. Can't change to component or hdmi without remote and universal won't control input. So I guess a perfectly good tv was scrapped due to the remote.
I disagree about Panasonic that you mentioned who made the STK IC Combination because, Sanyo is the only one who made the STK IC Combination where Panasonic, JVC and Technics who buys the STK IC Combination which they figured it is cheap and quick enough to install the Stereo Amplifier and for the Power Supply. It's Sanyo who had made the STK ICs which it is a failure. What I looked it up about STK ICs, include my 1982 Technics SA-106, it is made by Sanyo. 14:00
+Bluethunderboom Did I ever say that Panasonic made the IPM? No I said that Panasonic used them. I know that Sanyo made the STK branded module, but Panasonic also did make their own series of IPM. They didn't prefix it with STK, but they also made them.
Why would I have 5 V AC stand by voltage from the power supply to the main logic board?
Failed capacitor in the standby power supply or failed rectifier.
I was lazy and did not check most of the electrolytic capacitors. Non the less, I got it from the garbage and collected all of the components. I am going to check and keep the good caps. The bridge rec. tested okay. Thank you for your help.
Great video thank you.
+919867711350
The two ig brown caps look as though they are bulging. (near the centre of the PCB layout).
+Mike Gravgaard Between the three transformers!
+Mike Gravgaard Dust caps on top of the capacitor. They are actually OK. ESR is low. That TV is in my kids room, and he plays Xbox on it. Still working. This was actually the first Plasma TV I ever repaired.
great video GG !
Great learning video for me, because I'm still trying to learn about TV's. So I think I've already watched all of your tv videos now. I tried to get a wire diagram/schematic for a 32inch Sanyo LCD to no avail on the so called World Wide Web, HA,HA. So do you subscribe anywhere to get your schematics? That's the only thing that I could find that said they had mine but I'm disabled & it's just not feasible for me to do that when I might use once in a blue moon. Also where can I find a good ESR meter that affordable? Thanks for all of your videos because I've been going back & watching all of them, they are really helping me out a lot because Bud you have got some really Mad Skills. I was thinking on this set for a little while that maybe a Zener Diode had gone weak, not completely bad as yet. Once again thanks Bud.
Sir' I am from India. I want buy new 43 inch 4k UHD TV. Which Company Brand Good one....
I have a Samsung 4K 40" in my studio and I am pretty happy with it.
Thank you very much Sir....
Thanks fore this video
You just changed the 1 capacitor ??
+Donald Ellett Yes I only changed the one that was bad. It is my set, so I don't care if another one blows and I have to fix it again. Will make for another video.Not all capacitors fail at the same time. Some will go for 30 or 40 years without failing. It all depends on what they are doing with them, and how close they were being operated to max voltage / frequency, how hot they got from other components ect. So, when a capacitor causes a problem, it is generally just 1 that is the root cause. Sure if you are doing a total restore on say a classic amp, and someone is paying by the hour to restore an amp, you can as a tech make much more by changing all of them. There is not really much skill involved in this. Open the unit up, take inventory of all the capacitors. Get the required values, and then go to town and replace them all. No skill other than soldering required. Any idiot can do this, and because you are changing them all it will fix it. No different than back in the 60s. My dad used to pull the back off the TV, and pull all the tubes and take them to the local drug store that had a tube tester, and sold tubes.Replace all the ones that show as weak, gassy, or had a short and chances are the problem was fixed. If it was a capacitor or resistor that went bad, then the new tube would fail soon, and it was back to buy another new tube that would fail again in 3 months, until something went pop, the TV repair man came over, fixed the root cause and then the tube wouldn't burn out again. A good tech troubleshoots, and replaces the 1 or 2 bad parts, and the unit is now good for a long service life.When I started in the business, the shop across the street we called the tube jockeys. They would change every tube, and still not fix the problem. Eventually the set would come to the shop I was apprenticing in, and the old tech in there, my trainer and mentor when I was in high school, would comment about the competition, and how they knew nothing. After I wrote the CET challenge test, I spent a year working at Sony Canada, and then ended up at that shop for the next 20 years and whipped them into shape.
Took a little more diagnosing ??
+Donald Ellett This one took awhile as I had no schematics for it, and for the record this is the first plasma TV I had even looked in the back of never mind repaired.That set will probably be back in my shop as a bench monitor soon. My son has it now, and he is chirping about the shiny rub marks on the screen where the previous owner used something on it to clean it, and took off the anti reflective coating. SO the boy wants the Panasonic 42 I fixed last year, and wants to trade sets.
You got it fixed thou
Good job troubleshooting. WOW! I'm glad I didn't use a brillo pad and some acetone to clean mine!
If only they had sockets for modules to make them easier to change.
I have same tv twin green leds lit up then tern off
If The Screen Is Plastic You Can
Buff Out That Scratch.
I Did It To The Screen In My
Old Samsung Galaxy Tab A 8 inch Tablet.
Glass.
@@12voltvids Now All You Can Get Is Led TV's
Now. All You Can Get Are Led
Tv's. They Don't Need All That High Voltage
To Run only A Nucklehead Would
Use A M.r Clean Magic Eracer.
This is the same video as the last one.
Almost 4 times over the limit the capacitor limit
+Donald Ellett What?
Hugh capacitors !!
need to fix that annoying him in the background it's very annoying
People that whine about the noisy light are annoying.
I wasn't doing it to be annoying I was doing it to be funny because he a couple of your videos you yourself commented on how annoying the hum was
I know it buzzes. It is louder on the video than what ihear because the camera and microphone is closer. I can't do anything about it, but I have heard about it hundreds of times, and it gets annoying. Most of the comments about it get deleted.
No problem I find your program very educational I enjoy it very much keep up the good work
here is the Sams website in case your interested in diagrams for your TV's www.samswebsite.com/en/photofact/details/index/id/222439
Jesus not god it is massenger and a son of merry (mariam).
How do you check capacitors without taking them out or fliping the board over?
Well I put one probe on the metal back of the cap, and the other probe to either the + terminal, or another through hole component that was attached to the caps.
I actually did take the board out and tested it, but my camera f--ked up, and the file wouldn't open. If you look closely you will see the shot where the camera changes angle and the caps are obscured by the heat sink.
Well that make up shot was actually shot the next day, just before I put the back on the set. If you watch closely I am wearing a golf shirt one day and a tee shirt the next. They were both black, so if you are not watching closely you will miss it.
But I did test the caps in circuit. The bad one was not tight against the board, and by bending it over slightly I was able to get the probe on the leads.
What happened is the battery went dead when I was troubleshooting that big board, and I didn't notice that it had turned off until I had replaced the board in the set. I then went and got another battery.
Rather than just have the set appear magically repaired, I did a make up shot.
Anyway, it doesn't matter, the diagnostic was not staged, that component was the problem. It controls the soft start oscillator in the standby switching supply, and there was no signs of leakage, or bulging like generally happens on filter capacitors in the secondary side. Many of these self help web sites all make their claim to fame by showing people how to fix things where the bad components are visibly damaged. This set was not the case, and without an ESR meter, this would have been a very difficult repair. Not that it wasn't a challenge, even for me, as I had never worked on one of these units before, and had to pull a few tricks out of my bag to point me in the right direction.
Thank you, that was very helpful, love you videos
Bill B.
Bill B