Hey ,Thanks I am in a mid way of a repair of 42 inch TH-P42X30D plasma with 7 times Red LED blinking, found the culprit chip IGBT transistor, RJP63G4.I am going to replace and lets see I gained another solution for 10 time blinking and 15 volts missing solution from you.Thanks a ton.❤❤❤❤
Thanks for taking the time to give us some insight into repair. I have a 2010 Panasonic L32C22 that would either not come on at all, or come on for 3 or 4 sec, then give a 4 flash light. Took it apart and noticed a burnt smell, looked real close at the Power board, the smell was really light. I used my nose and went over the board, everything looked like new. even tho this tv is 9 years old, its only been used for maybe a year. while looking at the soldier connections, I noticed one of the things that look like a alien and blue, one of the soldier connections seemed a little off color, just slightly. so I re flowed it prayed and put everything back together again. Perfect picture Lesson learned....use your nose.
Love my plasma sets. I have 1 led set, a 4k and seldom turn it on. I think I use the old crt set more than the led. Use it only for checking 4k content before I upload.
That's a good one. Well I have an LED set, I use at my shop. I like it. Once I saw the plasma, holly crap, its like a crt hi def plus. Really bright and brilliant colours. Any info on the Philipps? I think its 52".
@@markanderson350 LED/LCD are light sources with an LCD "shutter" to restrict the light. Plasma (and OLED) are tiny points of light generated by the panel. OLED uses organic LEDs and plasma each pixel is essentially a tiny fluorescent lamp.
Seriously, someone would give this a thumbs down? I get such pleasure when the repaired tv comes back to life. I can’t believe there is someone who would do that. It is a joy to watch his troubleshooting as he zeros in on the problem. As the commercial says, “Are you not entertained?!?!” Please explain yourself or forever be labeled a pure ass!
same here im currently watchin this on a 47 in vizio i repaired videos likes this helpd me out when it finally comes on after looking for the problem that feeling kinda feels like elation lol
Trolls will be trolls. Could be someone that runs a shop. I am sure that are professional techs lurking here looking for information to boost their business. Come here to see what goes wrong and then thumb down the work because they cant stand someone informing their customers what goes wrong so they cant charge an arm and leg. Same goes when I showed how to snake a clogged drain using an 18.00 rental auger snake. Plumbers will be pissed off because for everyone that now knows how to do it, that is 1 less customer willing to pay them 200+ to come out and do the same thing.
My 50” died 3 days ago after 14 years of service. My wife is happy as I said I would buy a new smaller set. I am a retired electronic technician that worked on pc boards at the component level with and without schematics. Where did you find the manuals for your project? I might try to fix the beast and put it in my shop if I can repair it! Thanks for the video.
Brilliant! I love the minimalist approach to most things you do. I'm so used seeing people go straight for a bench PS with current limiting and hitting the board with freeze spray, etc. Had going for a minute with the fusible resistor that morphed into current sensing resistor.
Nope current sensing. Very low ohms. Like a fuse resistor. Once I blew up the schematic I could see the current sensing loop which fires a transistor that feeds back to the power supply micro that shuts everything down.
Thanks for the great video. I’m working my Pana 50 plasma with 10 blinks. When turned on neither voltage lights go on on the sustain boards. No voltage at the D351 spot. No 15V at P11 pin. Replaced P board and no luck same situation. replaced the A board. Same situation. I i found too if I unplug the left sustain board, the green light comes on the right sus board and the set clicks off to 2 blinks. You mentioned that because you had both green lights it meant that your P board was good. Any suggestions appreciated. Thanks much.
@Martin P. I am serious when I say I know little about plasma TV. I did take a course in 2002 but that was board replacement only. I just use common sense troubleshooting. Isolate and conquer. Everything I know about plasma TV I learned myself. I pass this on in the hope that others will get something out of it. At least people are interested in fixing plasma sets because you can't buy them anymore. They are also the most complex of all the TVs. LCD and oled are pretty much non serviceable as much of the signal processing is in the panel itself.
Hi 12 volt vids... I have the exact same problem with a Panasonic TH-P50U20Z. I can't find the service manual anywhere. Is it possible for you to email me the service manual for the 46 inch? The boards and the layout appear to be the same. Cheers V3FMRADIO@OUTLOOK.COM
It really wasn't that simple. I was disconnecting one circuit at a time. The 15 volt rail goes to sc board via the a, it also goes to the ss board and to a board on multiple lines. Pin 1 and 2 on the connector goes to audio amp. You can see I cut those first and then reconnected and taped them when I moved to pin 3 to isolate short. Then disconnected flat jumper wire that runs from a board to sc board. This repair was spread over 2 days.
Very well done tutorial video! Thank you. Now it's my turn to diagnose my Panasonic TH-42PX60U Plasma with what must be a bad cap on the power supply board, with a Cold TV I activate a start button and get the Click/Power Light on/off cycling for 10 min then it works for hours with no issue.
I am researching why my Panasonic plasma will not power up, (a TC-P42S60 that was given to me, saved from the dumpster, 3 blink code). thanks for the video and glad to see you got yours fixed......and what a COOL KITTY you have! :-)
Thank you for the detailed video. It worked for me. Advise for others... Be gentle during removal, I damaged some solder pads. But repaired them and the TV is fine. BTW, the HDMI plugs must be grounded. If you are testing the TV with the back off, jumper the HDMI plugs to chassis ground.
Plasma TVs just have to be saved. They were the last sets that had some good engineering in them, especially Panasonic sets. I now have 5 functional Panasonic and 1 to fix.
I have a S1 series 58" plasma that had a one blink code. I took the A board off and found shorted capacitors similar to the ones that you found. I removed the shorted caps and re installed the board and on power up I now have 10 blinks. Voltages all come up for a second and then the set enters shutdown.
Too many. Had this been a paid repair I would have probably charged 150 to fix this. The video runs only what 25 minutes, but it actually took me about 4 hours to find the problem, but as I showed in the video, only 1 part was changed. I showed all the steps in servicing, but spent much time studying the schematic on the computer, and I tell you this is a bloody complex circuit.
@@timka880057 Well I look to see if it can be fixed. When I was in the business everything was component level repair. No boards available, except for zenith. They used modules but we preferred to repair those too. I certainly don't miss those days.
@@12voltvids When I was a kid I loved watching an old tv repair guy replace compnents under the chasis of an old RCA color TV my brother had. It was very interesting in those days to see it come back to life again just for a few components replaced. I remember it was some old carbon resistors that was open or changed value... or a shorted capacitor and a few old tubes replaced. I miss that!
Great video. Last night i brought home a 55" Panasonic plasma that doesn't turn on. Hopefully I can repair it. I have repaired 3 LCD TVs, this is my first plasma.
So if the two lights on the boards do not light up as you show in the beginning, what does that indicate? Sorry for the newbie question hopefully you can help.
Good grief, ceramic cap. Just knew it was gonna be the IC chips needed heat sinked back down. Always learning something from you. Thanks for the vid. I knew this was time consuming.
Finding a silicon short can be a bear... I have used the alcohol trick in the past to find the hot spot where all the current is going to. That may have been challenging on this one given the low on time. Good thing is was just a crappy SMD cap. One failure mode on those is the cap actually physically cracking due to strain from the PCB heating or flexing; a problem in the larger caps. All in all a good find! Cheap at the cost of some time and one cap. Cheers, - Eddy
To find a short like that, you give it power from an external current limited supply. Then you look for hot spots. Alcohol works, or freeze spray, or IR camera.
Well done my friend: I have a Panasonic plasma TV have same prob 15 volt is missing have 10 blink red light.I did not check main board yet. hope can fix the TV by checking main board may be the regulator: Thank you for your professional skill and sharing:
Good job! You say you have limited experience with Plasma but a solid foundation of electronic diagnosis and repair you can figure it out with a schematic.
I just went the dummy route on the A board of my cheap 58" Panasonic plasma. I wish it was just a shorted cap on mine. I have read that the eeproms on the bigger sets can become corrupted and cause the dreaded 10 blink code. I paid $50 for the set and $60 for a used A board. Unbelievable picture on the set. It's a keeper. I saw one on Craigslist going for $600, so I believe that people are actually starting to appreciate the quality of construction and the picture on these sets. It's the fifth plasma that I have saved from the scrap heap. They can keep those throw away LCD's.
I have 5 spare plasma sets. A 42 lg. The rest are Panasonic. 42 thx certified. 46 and 50, plus a 50 monitor with separate signal box. Those are spare sets. I currently use a 42 Panasonic on my edit suite and have samsung 63 in my media room. My bedroom 50 samsung is all burned in from the local tv station logo during the morning snews.
Amazing tutorial. Thanks a bunch. You give so much value. I have the same issue. But a tv rep guy didn't diagnose that board properly. Since the conclusion was: There's something about the main board. What do you set the multimeter to? And does the tv has to be on for the device to beep?
technical question for you! Never come across this type of resistor color black at end. so orange being the first colour, then white, silver then gold but then there is a black band after the gold is it some kind of another tolerance band?? any clue??
Cool video...I have a Panasonic Viera (th42px600) that has the 7 red flashes error - I was hoping to try and fix it (cheaply and easily) and get it through to it's 18th birthday next month! Google searches point at the SC board (I know it could be a few things), but would you think the main transistors on that board would be a good place to start? Otherwise, it's off to get a new QLED I think...
Probably not the transistors. More then likely it was bad ground screws which popped a diode and ic. There were repair kits to fix them. One of my plasma sets is 21 years old now.
Hi 12volsvids, great work as usual, I think it a little unfair for TH-cam to mind when you are repairing a TV to have a problem just showing it works, what if you didn't have your own stuff to show, I think it's a little wrong, truly awesome repair great work as usual. from Jim. 👍👍👍
We actually used to have a 37" Panasonic 720p set with DVB-T Freeview built in. I didn't know that size was uncommon! The sound on it was fantastic, also :)
37 was the smallest of the plasma sets and wasn't as popular as larger ones. Same with the 46. 42 was very popular as was the 50. The reason was there wasn't much of a price difference between the 37 and 42, just like there wasn't much difference between 46 and 50, so the larger one was more popular.
@@12voltvids Indeed, I think we initially chose it because of the reduced day-to-day power consumption over the larger models. Also, like a lot of British homes, our lounge is quite small, so it seemed to make more sense considering ten years ago HD content was not as prevalent as it is these days. Replacing a CRT before it made it ideal for what was (for us) mostly standard-def viewing back then, anyway. Oh if only it had been a full HD plasma like your one, we probably still be watching it! ;)
@@Oldgamingfart There are some pretty small pads here too. With the high cost of land here micro homes under 300 sq feet are springing up in lane ways. My place would have been considered pretty small a few years ago and it is 2500 sq feet.
@@Oldgamingfart I have a standard definition plasma in the work shop. Not worth anything so I just watch it from time to time in the workshop. I have a 720 that I use for the news in the morning. It is burning quite nicely from the stationary graphics. My 63 is relatively power hungry. I do like the picture and some will argue that, but they have never seen my TV room. One of the chairs is at quite an angle and an LCD looks like crap off angle. An oled would look great but that is an expense I dont need right now. Want to get a 65" 4k oled some day but as long as my 63 plasma keeps going I am keeping it.
@@12voltvids Yes it's a mixed bag here as well, and the new builds are not particularly affordable for young people which is a modern day travesty if you ask me. My parents' home is a semi-detached Edwardian house, pretty typical of the era - large rooms, but not much in the way of garden/ outdoor space. Mine and my brother's house (we're neighbours), are both mid-1930's built, and the exact opposite - smaller rooms, but huge gardens!
Hey 12voltvids! Awesome clip! I have a simialr fault right now - it seems! 10 blink red LED. I have NO idea about electronics - just following your steps! Now, I have only a cheap Craftsman multimeter without a beeper. My ceramic cap shows about 1800 ohms one direction and about 520 in the other (on the board) - does this anything?? IF I need to change that cap - is there any specific size?? My TV is a Panasonic TC-P42C2 version, the A-board looks identical, the power-board slightly different but the 15V points are all there - pulling the 15V pins one by one from the plug that supplies the A-board, with the 3rd pin pulled the 15V holds a second and then reducse on the P-board upper corner 15V point... So - I would like to know what this ceramic cap would read on ohms when in working order - what would it read if it is faulty? My ohm values don't seem to be high at all.... Appreciate if you had a tip or two for me!!
Lp was never a recognized speed. Only sp and ep. Lp typically used the narrow ep heads and there are gaps between the tracks. Even a slight alignment error will cause auto tracking to have issues.
12voltvids thanks! Do you think that replacing the AC head solves the problem. The drum is completely cleared. I'll watch a video in your channel about vcr alignment
Recently I had to do a similar repair on an old Vizio TV that had lost the back light. Two of those SMD capacitors shorted and caused the fuse to blow. Those capacitors left a huge carbon hole in the circuit board but removing them and replacing the fuse fixed it. That TV probably shouldn't have been saved since it was a 22 inch 720p with a scratched up lg panel much older than the TV from the factory but it was still an interesting repair. Those older plasma TVs were great though. I have an old Sharp from 2006 that's still going that just has a washed out vertical line that comes and goes in the middle of the screen. I wouldn't consider fixing that until the TV completely gave out though. I'm pretty sure it's a bad solder connection on one of the BGA chips as the TV lost half of it's picture for a while then just started working again, leading me to get a new TV for daily use.
I have a pioneer kuro 50" still working quite well. There's a buzz probably coming from the power supply but it's barely noticeable. Picture quality is better the any LCDs.
Pioneer had the best plasma sets. No question there and the were also the most expensive sets compared to other brands. When they shut down in 2008 Panasonic bought the technology from pioneer, and incorporated it into the high end Panasonic models. I have one and it is beautiful. Power hungry you bet, cooling fans, check. Perfect picture, yup. Perfect blacks, absolutely.
One thing with the Panasonic set is removing the screws that hold the set's back in place a 18 Volt battery drill with a adjustable clutch goes a long way to remove and replace the screws. Great also for removing the screws for the boards in the set as well. I used my drill every day and it realy saved your wrist and hands.
You poor little thing, having such weak little wrists and hands must be so handicapping. You realise that holding a drill to unscrew results in exactly the same amount of force being transferred to your hand? Then you must add the weight of the drill, which is adding extra work for your arms, wrist and hands!
A nice tv for the price of a ceramic capacitor, sorted! Worth the time spent investigating. A new board would have went in to quite a few methinks! I hate the way we throw everything away these days!
I love your cat... we have six... we call them our kids with paws. :) He's focused on you as you work... maybe someday he'll be able to assist in your repairs ;)
i repaired a few TV's in my time. recently repaired a 24inch LED HDTV that had a diode short replaced them all as they were in parallel. ive also had a 42inch for repair that had bad mosfets, everything is made so cheap nowadays but its nice to keep something out of the landfill and fun fixing stuff. ive got a motherboard that has bad caps so will also replace them.
Well there certainly isn't any money in fixing stuff these days. I actually like the older stuff better myself. I like plasma tvs just because the science behind what makes them light up is so complex, it is actually cool. LCD is boring. Plot an X-Y coordinate and apply a voltage to stimulate liquid crystals to change polarity. Yawn. Now plasma you are talking science. Prechare the panel, select the line and apply a firing voltage to create an electric discharge. When you fire that discharge in the timing cycle determines the brightness. Then extinguish and charge to prepare for next sub frame. Do that 600 times a second.
I think I watched another video of you where the ground screws where loose on a Panasonic set. I was kinda surprised you didn't check them on this one.
I love Panasonic plasma TVs I have a 65 inch plasma TV from Panasonic and 46 inch Panasonic plasma TV. I love them both the movies or TV shows whatever you watch will be so enjoyable and the surroundsound that’s equipped on all these TVs. It seems like the sound is coming through the TV screen, very cool what Panasonic did everything the Panasonic makes is pure delight of enjoyment I will never get rid of them. I don’t know how long a plasma panel will last how how many hours does this lost my 65 inch Panasonic plasma I purchased 2009 and the other one 2012 so I really don’t know how long you could watch a plasma screen before it decides to burn out
No I do very little. Water change every few months. I have a bucket of fresh water with a pump and float control to top up the water as it evaporates. I fill the bucket about once a week. Feed them every day and check / clean protein skimmer. Once established they are no more work than fresh water other than mixing salt for water change.
Buenas yo tengo una tv plasma Panasonic de TC-P42S1L ,tiene el mismo problema . Que el led rojo destella 10 veces y se repite . Puede ser de condensador en corto.
+1. Very nice. .. Always a pleasure of watching a gifted/skilled professional. .. Drilling down the defect cause is an ole sckool practice given today's "swap out" contemporary circuit architecture. .. Thanks, M/S
Love the Viera TV's. I just had to order a new A board and luckily I found a new one for 100 bucks. Ran that TV hard for 10 years. They suck a lot of power but the picture is unequaled.
Nice, I wish I could fix my tc-p42c2, I dont get a blink code but the screen just flashes with a black screen, ive replaced and troubleshooted almost everything, cant find the problem
Hi i have Panasonic plasma TC-P50VT25 sound OK, Backlight OK. TV MENU display OK but HDMI and VIDEO Sound working Without pictured. I replaced the MAIN BOARD (MOTHERBOARD) but nothing changed. your assistance is highly appreciated
Not sure if I missed an explanation (so if I did, my apologies) but what was the purpose of the capacitor that shorted since you were able to get the TV working w/o replacing it?
@@12voltvids Ah..... I see... that makes sense now. Reminds me when I was building a circuit for a project and the schematics called for two ceramic caps to connect from a +5v and -5v to GND and the stated purpose was noise filtration. Also, just remembered that they do that a lot on RC & slot car motor leads to mainly reduce interference on TV broadcast (mainly analog broadcast I believe).
I've been watching lots of your videos, have to say your awesome. I dont have a TH-cam channel but covered some repairs on my Facebook. I only wished could get back in work doing this. Keep up the good work.
Well i am trying to limit how much i work on these days. Pretty much sticking to vintage audio and some video. I look at the stats and audio brings in the views, thus money, camcorders, tv and VCR not so much. So if there is little fibiancial gain for the video then i question why bother and that affects my decision to make a video, or to put a huge amount of effort into it. Vintage audio on the other hand views take off so that is what I put more effort into.
A Panasonic plasma that didn't have shorted IGBT's on the SC board? Whoa. Nice find on that shorted SMD cap. I think you should treat yourself to a second soldering iron for plucking SMD parts off. Me & my buddy have saved about half dozzen of these Panisonic's from the land fill. But first time I've seen a short on the main thumbs up!
@@12voltvids Yes it's strange the screws are always loose. You have a knock off hakko T12 station now right? Those things are up to temp in like 12 seconds. I have two with a bunch of different tips. Love em.
@@jeffescortlx Yes that was a problem. Panasonic came up with a service kit for the 2012 models that included new screws with lock washers. This set the screws are set with loctite, so these ones won't be a coming loose.
See history of Earl Muntz. He would walk through the engineering dept. with side cutters and start clipping components off of prototypes until the circuit stopped working. Put that component back on and that was the final circuit employed in his sets.
@@richardhz-oi8px Ah yes, cost cutting at every step. See what the minimum number of components needed. many times engineers put in extra parts that are put there under good intentions for best engineering practices. They may increase reliability, but again, more parts also means more parts that can fail, so it is a double edge sword. You need specific parts to make a circuit operate. too many, and you drive up the cost of manufacturing, and thus reduce profits. Ideally you want the minimum number of components required. Extra parts that do little besides provide redundancy and no performance increase also increase the chance of failure, so get rid of them.
This cap across the input supply voltage is just a duplicate to reduce noise a bit. There are caps across it on the other end of the cable too, in the power supply.
I have the 42 inch version of that TV, it has been a great TV, however it is gives off a lot of heat, which I suppose is not a problem in the great white north, however mine is in Florida. The "smart" tv apps havent been supported in years, I plan on keepiing it until it dies, heck for what I paid for it, you could buy 2 or 3 4K tv sets at 55 inches. if it ever does stop working I will count the blinks and refer back to this video. cheers.
You think this throws heat you should try the 63 Samsung I have. It warms the room nicely. How about the monster 104" Panasonic plasma. It draws 20 amps @ 240 volts. About 4500 watts!!!!! This one 350 watts. I have an older 42" sd panel that draws more.
So very true! We are in Central Florida and also had a plasma for a while but had to get rid of it because it just created too much heat 85% of the year. Now, when the seriously cold waves hit and the temperatures plummeted down to around 65-68°f (brrrr), it was fine because we could heat the whole house with it. 😎
@John Hooper Yes I am aware of this. This TV is now one of my spare sets. Has not been used since I fixed it. I now have 3 perfect working Panasonic plasma TVs waiting for one of the others to blow up so i can use them. So I guess you know what yhay means. I will br watching plasma TVs for a long, long time. I have a 42thx certified, 46 and 50 waiting to be used.
Dave, Thanks for the lesson. I see that your set consumes up to 331 watts of electricity. Do you watch it enough to notice a difference in your electricity bill? I've also heard that these plasma sets can put out a lot of heat as well. Is all that heat a problem or is it a problem that is over exaggerated? Regards, Tom
@@12voltvids Thank you for the quick reply. What I always wondered is, if you're watching a plasma set as your main TV set, would raise your power bill substantially?
At a rate of 0.12 per KWH running this TV for 3 hours would consume just under 1KWh which would cost .12 so about .04 per hour to operate. Our electricity here is .08 for the first 1360 KWH in billing cycle and then just over .13 for the rest of the billing cycle so no they don't cost that much to operate. All the wall warts, phone chargers, modem, cable boxes and all other electronics in standby 24 hours a day uses more.
@@12voltvids Dave, Thanks a lot for the detailed answer. One thing I've always appreciated is that you've always taken the time to answer my questions completely and thoroughly.
Ah, a late model Panasonic plasma - should be well worth hanging on to (substantial power consumption aside). They finally started using shielded panels in '09, so these should no longer be crapping all over the AM bands like the older ones did. Plasmas were a real plague - they would be directly radiating through the front of the panel, wreaking havoc on mediumwave and lower shortwave for quite a distance. My parents used to have an '06 Panasonic 42" 720p - great picture (these tend to have superb contrast), but it sabotaged my shortwave reception about 8 meters away pretty good. That one was reasonably power-hungry as-is, the 1080ps tended to be around 500 W if memory serves. Oh, and of course ceramic caps don't short _for no good reason_ ;) - usually it's the formation of microcracks caused by large temperature gradients within the part (easily generated e.g. during hand soldering), followed by silver migration through these propelled by applied voltage. I would tend to stick with automotive grade parts (which are of different construction and, in general, a good bit larger) or even traditional through-hole disc caps.
Having problem with Panasonic TX-42AS520B Red Standby light continues flashing like 2 seconds gap. Had this issue first time like 2 weeks ago when it was not responding to remote and then tried from the power button on TV and first few times it did not worked. It tried to turn on green light flashing then green steady light and then red flashing light again but after few tries it did came on and was working fine untill now it happened again doing same thing. If I press power button on TV it does cone on, sounds is there screen flashing white colour 3 times with 1 or 2 sec gap and after 3rd flash it cutts off continues red flashing light. I have done all the basic like turning off from mains from mintues to hours even over night but still the same. I dont understand why it would start with flashing light when powers been off and when you turn on it should be standby atleast then but no so something its reading faulty even after restarting without trying to turn on. I am very technical minded and gets my hands on anything and not scared of opening and fixing anything and did few TVs as well in the past. Just needs right direction. Is it the power board I am looking or main board. I will be happy if I can fix the current ones if not changing board should fix it. I have got VOLT Meter if it needs checking voltages and Soldering Iron as well some where. Sorry for long message I like writing in details. Any help will be highly appropriated.
How did you obtain the manual and schematics for that TV I also have a Panasonic plasma that is currently still functioning but just wanted to know should I ever have an issue thanks and fantastic video keep up the good work
Hi -we have a Visio 3d 55" Led TV which lost color in all inputs. Smart features have color but all inputs show B&W only. Model is M3D550KED, s it worth fixing? Thnx. nrg16108 at yaho.
I have this TV but it is a 50" Model TC-P50U2 with 10 blinks. I have replaced the A Board and Power Supply Board but still get the 10 blinks and still don't get the 2 LED lights when powering on. Do you have any suggestions please?? Or does anybody have a suggestion?
Excellent troubleshooting. Just wondering where you acquired the service manual pdf. I have a Panasonic 42" which as been trouble free but tomorrow is another day eh! The only sign of a possible problem is that in a few random and far between times it turned on looking super saturated in color. Cycle the power again and all is OK. Strange issue but can't chase a ghost ... Thanks again.
G O O G L E. Thats where I find my service data. Sometimes it takes some research and there are times I have spent more time looking for data than actually fixing it, because many of the searches lead to commercial sites where they want to sell you the data. I have never paid for any service manuals. They are out there, you just have to look. Sorry I can't be more specific, but every one is different. Some times I will find what I am looking for in minutes, and sometimes it takes days of searching.
@@12voltvids that's what I suspected and also my experience in the past. I had just asked in case you had the "mother of all manual sites". Much appreciated!
I have the Panasonic TC-P50GT30. First it had the 7 blinking lights. Got the TNPA5335 repaired and installed it 9/29/2020. Now the TV is blinking 8 lights. Any suggestions?
@@JohnSmith-wj4sh Pretty much. Check your connections on the boards, but plasma are complicated beasts. I have fixed a number of them, but even now I am leaning away from any and all TV repairs. The price has fallen so fast on TV that they are just not worth spending any time or effort on. I don't know that I would buy an OLED set though, due to the burn in issues. The SS board is a common point of failure for the 8 blink code. Here is one I had. th-cam.com/video/zYoxAqaKoBw/w-d-xo.html This is my set, and it still works after I rebuilt the SS board.
Hi and Thanks For the Great Video....I Have a 50" Plazma Panasonic Doing the Same...Now I Might Be able to Fix it, and not have to buy an new TV.....Can You Please Provide the info on the part replaced...I Know mine might be different but fyi and I'm going to be looking at mine today 08/28/2021...Thanks Again...
Hello, I am from Belgium and I am looking for a motherboard for my LG 60PN6504, EAX65071308 (1.2) there is no EBT number, I have been searching for about 3 months now but I have not found a single motherboard. TV has been used since 2013, but it hasn't actually been used that much before.
I didn't replace it. Extra parts. Not needed. There to filter possible RF from radiating. As if i care about interfering with am radio. After all, it's a plasma. They blow out all reception in the vacinity anyway.
Yes I have a 50 as well. In my panasonic collection I have a 42SD, a 42 full HD, a 42 THX certified 1080p, this one, and a 2012 50" 1080 set. I also have a 50" panasonic that has a seperate tuner box but that one is not fixed yet. Other plasma sets I have are an 720p 42 LG, 720 50" samsung, and 1080 FHD 63 samsung. I have 3 more samsung plasma sets that have panel problems (vert line or 2 in the screen)
@@petenamlook18 A back vertical bar approximately 1" wide is usually caused by a connection between one of the FPC tabs and the C board along the bottom. It could be caused by a bad drive IC on the FPC as well which is non repairable. A single vertical line line (black, red, green or blue) is a failure of the drive IC on the FPC that corresponds to that area of the screen, or the panel itself. Single line failure requires replacing of the panel to fix. 1" wide might just need one of the connectors restated. If it is a horizontal line it could be the a connection between one upper or lower buffer and FPC on the left side of the screen looking from the back. Or it could be one of the buffer chips on the buffer board. If it is on the top half it would be the upper board, and lower half the lower board. I have a total of 11 working plasma screens. 2 of them have single vertical line failures which is the panel. They are used for gaming, and an advertising display, and one has a small crack in the glass, but the set still works and I watch that one daily on the news channel so it is getting a real nice permanent burn it from the TV station logos and news ticker. Out of all those TVs I watch 3 regularly. The 2 with bad screens are used for gaming and digital signage, and the rest are sitting at the back of a closet awaiting the day when I need to put one in service when one of the others breaks beyond repair. I got all except the first 2 for free. I have had many more, but I do sell my spares for those people that want a plasma. There are people out there that seek out plasma TVs now that they can't buy them anymore.
I have 4 Panasonic plasmas... 50in.. I wont purchase any other TV but a Panasonic.... Their plasma line are true work horses... I had one 55-inch that stayed on for 3 months straight without being turned off.... The only thing that ever happened to it is the asshole Comcast guy reconnected the television straight into the wall saying that it would be a better picture... 2 days later an electrical storm fried my HDMI 1 and everything that was plugged in there after.... Laptop... Passport external hard drive... And a crappy MP3.... All because of Mr. Xfinity... Of course they would accept no responsibility..
I kind of wish Plasma TV's stuck around longer...seems like such a promising technology, though probably bigger and has more componets then a modren LCD panel.
I have almost the same TV from the following year, even the same size. I also don't want to get rid of mine. Gonna keep this video handy in case anything happens to it.
Dave. I’ve seen several videos on another site where shorted SMD caps simply aren’t replaced and the device works fine. Also open resistors are replaced with a piece of wire. If these fixes work , and they obviously do, what’s the purpose of the original, now defective, components?
The SMD cap is not required. It is just to filter ripple, and is more to help stop the TV radiating and causing interference to AM radio. The SMD resistors you see jumped are 0 ohm jumper chips and they can be safely removed and a wire placed in. If it were a real resistor, 10k 22k ect and you put in a piece of wire you would be asking for trouble.
If shorted, you can't really know the value except by size, voltage and application. This one I would guess is 5 or 10uF, used for supply voltage noise filtering. It's large for a ceramic. In this application the value isn't critical at all.
That depends how it's connected. Better to use a larger non-polarized cap. Note that I know nothing about your cap. The one in the video is 5 to 10 uF.
My guess is that some line over-voltage spike, possibly from lightening, may have blown the bypass caps. Maybe the blown fuses may have been part of the damage from the spike.
No lightning here. We are in an area that sees lightning perhaps once a year, and it is usually only a flash in the distance. Also, no blown fuses or any semis. Just one shorted ceramic cap.
Damn, I have 50inch. that has the same error code and problems, I'll follow your troubleshoot solutions, hope I find it! Otherwise, I'll just replace that board...
I'm glad I found your channel. Its not only interesting but its informative. I never repaired anything in my life. But its good to watch just in case I get a hold of something I actually want to @t a S-VHS VCR or a Minidisk deck ( which I already have,Still working) . You have a subscriber for life.
Hi great job you did very good I have a 50 inched Panasonic plasma that was given to me with the same problem as yours I plan on fixing it and keeping it my name is Roger Anthony Ash great job.
Nice one, just in the process of watching some of your Panasonic plasma vids after picking up an old one that works so no play time lol. Just noticed your new channel photo, why so serious looking though?
@@12voltvids Yeah, just struck me that you didn't look exceptionally pleased with the award. Still kind of confuses me how you don't have more subscribers honestly, guess there's only so many folk interested in learning this kind of thing or seeing cool old equipment fixed.
Hey ,Thanks I am in a mid way of a repair of 42 inch TH-P42X30D plasma with 7 times Red LED blinking, found the culprit chip IGBT transistor, RJP63G4.I am going to replace and lets see I gained another solution for 10 time blinking and 15 volts missing solution from you.Thanks a ton.❤❤❤❤
Thanks for taking the time to give us some insight into repair. I have a 2010 Panasonic L32C22 that would either not come on at all, or come on for 3 or 4 sec, then give a 4 flash light. Took it apart and noticed a burnt smell, looked real close at the Power board, the smell was really light. I used my nose and went over the board, everything looked like new. even tho this tv is 9 years old, its only been used for maybe a year. while looking at the soldier connections, I noticed one of the things that look like a alien and blue, one of the soldier connections seemed a little off color, just slightly. so I re flowed it prayed and put everything back together again. Perfect picture
Lesson learned....use your nose.
Yup. Nose eyes and ears.
We inherited a Philips Plasma and yes the picture is nothing like anything I have seen. You hit it lucky and your troubleshooting is great.
Love my plasma sets. I have 1 led set, a 4k and seldom turn it on. I think I use the old crt set more than the led. Use it only for checking 4k content before I upload.
That's a good one. Well I have an LED set, I use at my shop. I like it. Once I saw the plasma, holly crap, its like a crt hi def plus. Really bright and brilliant colours. Any info on the Philipps? I think its 52".
@@markanderson350
LED/LCD are light sources with an LCD "shutter" to restrict the light. Plasma (and OLED) are tiny points of light generated by the panel. OLED uses organic LEDs and plasma each pixel is essentially a tiny fluorescent lamp.
Seriously, someone would give this a thumbs down? I get such pleasure when the repaired tv comes back to life. I can’t believe there is someone who would do that. It is a joy to watch his troubleshooting as he zeros in on the problem. As the commercial says, “Are you not entertained?!?!” Please explain yourself or forever be labeled a pure ass!
There is a song by beck that describes them perfectly.
same here im currently watchin this on a 47 in vizio i repaired videos likes this helpd me out when it finally comes on after looking for the problem that feeling kinda feels like elation lol
The thumbs-down's come from cats, who feel that this guy's cat got insufficient exposure on this video.
Trolls will be trolls. Could be someone that runs a shop. I am sure that are professional techs lurking here looking for information to boost their business. Come here to see what goes wrong and then thumb down the work because they cant stand someone informing their customers what goes wrong so they cant charge an arm and leg. Same goes when I showed how to snake a clogged drain using an 18.00 rental auger snake. Plumbers will be pissed off because for everyone that now knows how to do it, that is 1 less customer willing to pay them 200+ to come out and do the same thing.
The Beatles had Beck beat by 40 years. Except they didn't suggest that someone kill them.
My 50” died 3 days ago after 14 years of service. My wife is happy as I said I would buy a new smaller set. I am a retired electronic technician that worked on pc boards at the component level with and without schematics. Where did you find the manuals for your project? I might try to fix the beast and put it in my shop if I can repair it! Thanks for the video.
Brilliant! I love the minimalist approach to most things you do. I'm so used seeing people go straight for a bench PS with current limiting and hitting the board with freeze spray, etc. Had going for a minute with the fusible resistor that morphed into current sensing resistor.
Nope current sensing. Very low ohms. Like a fuse resistor. Once I blew up the schematic I could see the current sensing loop which fires a transistor that feeds back to the power supply micro that shuts everything down.
Taking a shot over the bow at anyone in particular?
Thanks for the great video. I’m working my Pana 50 plasma with 10 blinks. When turned on neither voltage lights go on on the sustain boards. No voltage at the D351 spot. No 15V at P11 pin. Replaced P board and no luck same situation. replaced the A board. Same situation. I i found too if I unplug the left sustain board, the green light comes on the right sus board and the set clicks off to 2 blinks. You mentioned that because you had both green lights it meant that your P board was good. Any suggestions appreciated. Thanks much.
Same problem. Did you fix it?
Just wish I had 1/100th of your skills, awsome video, thank you.
Remember I know nothing about these new TVs.
@Martin P.
I am serious when I say I know little about plasma TV. I did take a course in 2002 but that was board replacement only. I just use common sense troubleshooting. Isolate and conquer. Everything I know about plasma TV I learned myself. I pass this on in the hope that others will get something out of it. At least people are interested in fixing plasma sets because you can't buy them anymore. They are also the most complex of all the TVs. LCD and oled are pretty much non serviceable as much of the signal processing is in the panel itself.
Hi 12 volt vids... I have the exact same problem with a Panasonic TH-P50U20Z. I can't find the service manual anywhere. Is it possible for you to email me the service manual for the 46 inch? The boards and the layout appear to be the same. Cheers
V3FMRADIO@OUTLOOK.COM
What a great fix!
I love things that seem so simple in the end.
It really wasn't that simple.
I was disconnecting one circuit at a time. The 15 volt rail goes to sc board via the a, it also goes to the ss board and to a board on multiple lines. Pin 1 and 2 on the connector goes to audio amp. You can see I cut those first and then reconnected and taped them when I moved to pin 3 to isolate short. Then disconnected flat jumper wire that runs from a board to sc board. This repair was spread over 2 days.
@@12voltvids youssefD
Very well done tutorial video! Thank you. Now it's my turn to diagnose my Panasonic TH-42PX60U Plasma with what must be a bad cap on the power supply board, with a Cold TV I activate a start button and get the Click/Power Light on/off cycling for 10 min then it works for hours with no issue.
I am researching why my Panasonic plasma will not power up, (a TC-P42S60 that was given to me, saved from the dumpster, 3 blink code). thanks for the video and glad to see you got yours fixed......and what a COOL KITTY you have! :-)
Thank you for the detailed video. It worked for me. Advise for others... Be gentle during removal, I damaged some solder pads. But repaired them and the TV is fine. BTW, the HDMI plugs must be grounded. If you are testing the TV with the back off, jumper the HDMI plugs to chassis ground.
You beauty. Nice job fixing the beloved Panasonic Plasma, enjoy.🖥
Plasma TVs just have to be saved. They were the last sets that had some good engineering in them, especially Panasonic sets.
I now have 5 functional Panasonic and 1 to fix.
I have a S1 series 58" plasma that had a one blink code. I took the A board off and found shorted capacitors similar to the ones that you found. I removed the shorted caps and re installed the board and on power up I now have 10 blinks. Voltages all come up for a second and then the set enters shutdown.
Real good. That was an interesting fix. Thanks for the video. Makes me think how many TV s end up in the recycling for one small problem.
Too many. Had this been a paid repair I would have probably charged 150 to fix this. The video runs only what 25 minutes, but it actually took me about 4 hours to find the problem, but as I showed in the video, only 1 part was changed. I showed all the steps in servicing, but spent much time studying the schematic on the computer, and I tell you this is a bloody complex circuit.
@@12voltvids lol You did what mostly anyone else would've given up on. If a board couldn't be obtained.
@@timka880057
Well I look to see if it can be fixed. When I was in the business everything was component level repair. No boards available, except for zenith. They used modules but we preferred to repair those too. I certainly don't miss those days.
@@12voltvids When I was a kid I loved watching an old tv repair guy replace compnents under the chasis of an old RCA color TV my brother had. It was very interesting in those days to see it come back to life again just for a few components replaced. I remember it was some old carbon resistors that was open or changed value... or a shorted capacitor and a few old tubes replaced. I miss that!
Great video. Last night i brought home a 55" Panasonic plasma that doesn't turn on. Hopefully I can repair it. I have repaired 3 LCD TVs, this is my first plasma.
So if the two lights on the boards do not light up as you show in the beginning, what does that indicate? Sorry for the newbie question hopefully you can help.
Good grief, ceramic cap. Just knew it was gonna be the IC chips needed heat sinked back down.
Always learning something from you. Thanks for the vid. I knew this was time consuming.
Finding a silicon short can be a bear... I have used the alcohol trick in the past to find the hot spot where all the current is going to. That may have been challenging on this one given the low on time. Good thing is was just a crappy SMD cap.
One failure mode on those is the cap actually physically cracking due to strain from the PCB heating or flexing; a problem in the larger caps.
All in all a good find! Cheap at the cost of some time and one cap.
Cheers,
- Eddy
To find a short like that, you give it power from an external current limited supply. Then you look for hot spots. Alcohol works, or freeze spray, or IR camera.
Well done my friend: I have a Panasonic plasma TV have same prob 15 volt is missing have 10 blink red light.I did not check main board yet. hope can fix the TV by checking main board may be the regulator: Thank you for your professional skill and sharing:
Good job! You say you have limited experience with Plasma but a solid foundation of electronic diagnosis and repair you can figure it out with a schematic.
Hi, great video. I have the TC-50S2, the TV has the 10 red lights. When I took off the back the green lights do not come on. Your thoughts.
Thank you.
I just went the dummy route on the A board of my cheap 58" Panasonic plasma. I wish it was just a shorted cap on mine. I have read that the eeproms on the bigger sets can become corrupted and cause the dreaded 10 blink code. I paid $50 for the set and $60 for a used A board. Unbelievable picture on the set. It's a keeper. I saw one on Craigslist going for $600, so I believe that people are actually starting to appreciate the quality of construction and the picture on these sets. It's the fifth plasma that I have saved from the scrap heap. They can keep those throw away LCD's.
I have 5 spare plasma sets. A 42 lg. The rest are Panasonic. 42 thx certified. 46 and 50, plus a 50 monitor with separate signal box. Those are spare sets. I currently use a 42 Panasonic on my edit suite and have samsung 63 in my media room. My bedroom 50 samsung is all burned in from the local tv station logo during the morning snews.
@@12voltvids I may die watching a plasma set...
Great work great video I love your channel I wish I had a channel like this back in 80s when I was trying to learn this thread here in Jamaica
Amazing tutorial. Thanks a bunch.
You give so much value.
I have the same issue. But a tv rep guy didn't diagnose that board properly. Since the conclusion was: There's something about the main board.
What do you set the multimeter to? And does the tv has to be on for the device to beep?
Beautiful set. Makes you wonder how many were junked for similar failures. Sad.
Lots are junked for simple fixes. These plasma panels should be good for 100000 hours of use.
technical question for you! Never come across this type of resistor color black at end.
so orange being the first colour, then white, silver then gold but then there is a black band after the gold is it some kind of another tolerance band?? any clue??
Cool video...I have a Panasonic Viera (th42px600) that has the 7 red flashes error - I was hoping to try and fix it (cheaply and easily) and get it through to it's 18th birthday next month! Google searches point at the SC board (I know it could be a few things), but would you think the main transistors on that board would be a good place to start? Otherwise, it's off to get a new QLED I think...
Probably not the transistors. More then likely it was bad ground screws which popped a diode and ic. There were repair kits to fix them. One of my plasma sets is 21 years old now.
Hi 12volsvids, great work as usual, I think it a little unfair for TH-cam to mind when you are repairing a TV to have a problem just showing it works, what if you didn't have your own stuff to show, I think it's a little wrong, truly awesome repair great work as usual. from Jim. 👍👍👍
We actually used to have a 37" Panasonic 720p set with DVB-T Freeview built in. I didn't know that size was uncommon! The sound on it was fantastic, also :)
37 was the smallest of the plasma sets and wasn't as popular as larger ones. Same with the 46. 42 was very popular as was the 50. The reason was there wasn't much of a price difference between the 37 and 42, just like there wasn't much difference between 46 and 50, so the larger one was more popular.
@@12voltvids Indeed, I think we initially chose it because of the reduced day-to-day power consumption over the larger models. Also, like a lot of British homes, our lounge is quite small, so it seemed to make more sense considering ten years ago HD content was not as prevalent as it is these days.
Replacing a CRT before it made it ideal for what was (for us) mostly standard-def viewing back then, anyway. Oh if only it had been a full HD plasma like your one, we probably still be watching it! ;)
@@Oldgamingfart
There are some pretty small pads here too. With the high cost of land here micro homes under 300 sq feet are springing up in lane ways. My place would have been considered pretty small a few years ago and it is 2500 sq feet.
@@Oldgamingfart
I have a standard definition plasma in the work shop. Not worth anything so I just watch it from time to time in the workshop. I have a 720 that I use for the news in the morning. It is burning quite nicely from the stationary graphics. My 63 is relatively power hungry. I do like the picture and some will argue that, but they have never seen my TV room. One of the chairs is at quite an angle and an LCD looks like crap off angle. An oled would look great but that is an expense I dont need right now. Want to get a 65" 4k oled some day but as long as my 63 plasma keeps going I am keeping it.
@@12voltvids Yes it's a mixed bag here as well, and the new builds are not particularly affordable for young people which is a modern day travesty if you ask me.
My parents' home is a semi-detached Edwardian house, pretty typical of the era - large rooms, but not much in the way of garden/ outdoor space. Mine and my brother's house (we're neighbours), are both mid-1930's built, and the exact opposite - smaller rooms, but huge gardens!
So what do you think about samsung plazma 42 trying to power many times and power on after 5 minutes with hearing reley in meanwhile.
Hey 12voltvids! Awesome clip! I have a simialr fault right now - it seems! 10 blink red LED. I have NO idea about electronics - just following your steps! Now, I have only a cheap Craftsman multimeter without a beeper. My ceramic cap shows about 1800 ohms one direction and about 520 in the other (on the board) - does this anything??
IF I need to change that cap - is there any specific size?? My TV is a Panasonic TC-P42C2 version, the A-board looks identical, the power-board slightly different but the 15V points are all there - pulling the 15V pins one by one from the plug that supplies the A-board, with the 3rd pin pulled the 15V holds a second and then reducse on the P-board upper corner 15V point...
So - I would like to know what this ceramic cap would read on ohms when in working order - what would it read if it is faulty? My ohm values don't seem to be high at all....
Appreciate if you had a tip or two for me!!
What kind of antenna do you recommend for these Samsung plasmas?? Minneapolis Minnesota here.
Hey 12voltsvids, what is the problem when the vcr having trouble adjusting the auto tracking only with LP tapes and adjusting fast with SP tapes?
Lp was never a recognized speed. Only sp and ep. Lp typically used the narrow ep heads and there are gaps between the tracks. Even a slight alignment error will cause auto tracking to have issues.
12voltvids thanks! Do you think that replacing the AC head solves the problem. The drum is completely cleared. I'll watch a video in your channel about vcr alignment
@@raynegames2636
I have never seen an a/c head fail. If it was bad you would get no playback period.
I have a Panasonic TH-42PD50U and there is no picture. Blinks 10 times. How do I determine what part is needed and where can I purchase it please.
Recently I had to do a similar repair on an old Vizio TV that had lost the back light. Two of those SMD capacitors shorted and caused the fuse to blow. Those capacitors left a huge carbon hole in the circuit board but removing them and replacing the fuse fixed it. That TV probably shouldn't have been saved since it was a 22 inch 720p with a scratched up lg panel much older than the TV from the factory but it was still an interesting repair. Those older plasma TVs were great though. I have an old Sharp from 2006 that's still going that just has a washed out vertical line that comes and goes in the middle of the screen. I wouldn't consider fixing that until the TV completely gave out though. I'm pretty sure it's a bad solder connection on one of the BGA chips as the TV lost half of it's picture for a while then just started working again, leading me to get a new TV for daily use.
I have a pioneer kuro 50" still working quite well. There's a buzz probably coming from the power supply but it's barely noticeable. Picture quality is better the any LCDs.
Pioneer had the best plasma sets. No question there and the were also the most expensive sets compared to other brands. When they shut down in 2008 Panasonic bought the technology from pioneer, and incorporated it into the high end Panasonic models. I have one and it is beautiful. Power hungry you bet, cooling fans, check. Perfect picture, yup. Perfect blacks, absolutely.
My 60in. Panasonic just did the 10 blinking lights, I'd love to try to tackle fixing it myself
One thing with the Panasonic set is removing the screws that hold the set's back in place a 18 Volt battery drill with a adjustable clutch goes a long way to remove and replace the screws. Great also for removing the screws for the boards in the set as well. I used my drill every day and it realy saved your wrist and hands.
You poor little thing, having such weak little wrists and hands must be so handicapping.
You realise that holding a drill to unscrew results in exactly the same amount of force being transferred to your hand? Then you must add the weight of the drill, which is adding extra work for your arms, wrist and hands!
A drill is overkill. A cordless screwdriver is what I use.
A nice tv for the price of a ceramic capacitor, sorted! Worth the time spent investigating. A new board would have went in to quite a few methinks! I hate the way we throw everything away these days!
So what does it mean if neither of those boards show the green power diodes when powered?
I love your cat... we have six... we call them our kids with paws. :) He's focused on you as you work... maybe someday he'll be able to assist in your repairs ;)
i repaired a few TV's in my time. recently repaired a 24inch LED HDTV that had a diode short replaced them all as they were in parallel. ive also had a 42inch for repair that had bad mosfets, everything is made so cheap nowadays but its nice to keep something out of the landfill and fun fixing stuff. ive got a motherboard that has bad caps so will also replace them.
Well there certainly isn't any money in fixing stuff these days. I actually like the older stuff better myself. I like plasma tvs just because the science behind what makes them light up is so complex, it is actually cool. LCD is boring. Plot an X-Y coordinate and apply a voltage to stimulate liquid crystals to change polarity. Yawn.
Now plasma you are talking science. Prechare the panel, select the line and apply a firing voltage to create an electric discharge. When you fire that discharge in the timing cycle determines the brightness. Then extinguish and charge to prepare for next sub frame. Do that 600 times a second.
I think I watched another video of you where the ground screws where loose on a Panasonic set. I was kinda surprised you didn't check them on this one.
I did. They are all tight and they have locktite on the threads. It was the 2012 models that had that problem.
I love Panasonic plasma TVs I have a 65 inch plasma TV from Panasonic and 46 inch Panasonic plasma TV. I love them both the movies or TV shows whatever you watch will be so enjoyable and the surroundsound that’s equipped on all these TVs. It seems like the sound is coming through the TV screen, very cool what Panasonic did everything the Panasonic makes is pure delight of enjoyment I will never get rid of them. I don’t know how long a plasma panel will last how how many hours does this lost my 65 inch Panasonic plasma I purchased 2009 and the other one 2012 so I really don’t know how long you could watch a plasma screen before it decides to burn out
Open it up and tighten the board grounding screws before it fails. Once it goes pop you will have a problem.
Are saltwater aquariums high maintenance compared to other types of fish?
No I do very little. Water change every few months. I have a bucket of fresh water with a pump and float control to top up the water as it evaporates. I fill the bucket about once a week. Feed them every day and check / clean protein skimmer. Once established they are no more work than fresh water other than mixing salt for water change.
Buenas yo tengo una tv plasma Panasonic de TC-P42S1L ,tiene el mismo problema .
Que el led rojo destella 10 veces y se repite .
Puede ser de condensador en corto.
+1. Very nice. .. Always a pleasure of watching a gifted/skilled professional. .. Drilling down the defect cause is an ole sckool practice given today's "swap out" contemporary circuit architecture. .. Thanks, M/S
How do you fix a half black bottom screen on a Panasonic TC-P50X1
Love the Viera TV's. I just had to order a new A board and luckily I found a new one for 100 bucks. Ran that TV hard for 10 years. They suck a lot of power but the picture is unequaled.
I'm waiting to see how micro led pan out.
mine viera has only 6 blink red led, doesn't turn on, if you could help with that
Nice, I wish I could fix my tc-p42c2, I dont get a blink code but the screen just flashes with a black screen, ive replaced and troubleshooted almost everything, cant find the problem
Hi i have Panasonic plasma TC-P50VT25 sound OK, Backlight OK. TV MENU display OK but HDMI and VIDEO Sound working Without pictured. I replaced the MAIN BOARD (MOTHERBOARD) but nothing changed. your assistance is highly appreciated
Not sure if I missed an explanation (so if I did, my apologies) but what was the purpose of the capacitor that shorted since you were able to get the TV working w/o replacing it?
Just a bypass cap to reduce RF interference to am radios.
@@12voltvids Ah..... I see... that makes sense now. Reminds me when I was building a circuit for a project and the schematics called for two ceramic caps to connect from a +5v and -5v to GND and the stated purpose was noise filtration. Also, just remembered that they do that a lot on RC & slot car motor leads to mainly reduce interference on TV broadcast (mainly analog broadcast I believe).
@@MovieGuy846 exactly.
one of these sets just put out on the side of the road by a moving out neighbour , it can stay there , very interesting video thanks for posting.
I'm watching my plasma now. Still using them here. They have a great picture.
I've been watching lots of your videos, have to say your awesome. I dont have a TH-cam channel but covered some repairs on my Facebook. I only wished could get back in work doing this. Keep up the good work.
Well i am trying to limit how much i work on these days. Pretty much sticking to vintage audio and some video. I look at the stats and audio brings in the views, thus money, camcorders, tv and VCR not so much. So if there is little fibiancial gain for the video then i question why bother and that affects my decision to make a video, or to put a huge amount of effort into it. Vintage audio on the other hand views take off so that is what I put more effort into.
A Panasonic plasma that didn't have shorted IGBT's on the SC board? Whoa. Nice find on that shorted SMD cap. I think you should treat yourself to a second soldering iron for plucking SMD parts off. Me & my buddy have saved about half dozzen of these Panisonic's from the land fill. But first time I've seen a short on the main thumbs up!
I have another iron. Just couldn't bother waiting for it to warm up.
I have had igbt fail on ss board. Caused by loose ground screws.
@@12voltvids Yes it's strange the screws are always loose. You have a knock off hakko T12 station now right? Those things are up to temp in like 12 seconds. I have two with a bunch of different tips. Love em.
@@jeffescortlx Yes that was a problem. Panasonic came up with a service kit for the 2012 models that included new screws with lock washers. This set the screws are set with loctite, so these ones won't be a coming loose.
Well it happens, and now you know how to troubleshoot it.
the tv worked with the caps removed? what's the use of the caps then?
More parts to fail.
See history of Earl Muntz. He would walk through the engineering dept. with side cutters and start clipping components off of prototypes until the circuit stopped working. Put that component back on and that was the final circuit employed in his sets.
@@richardhz-oi8px
Ah yes, cost cutting at every step. See what the minimum number of components needed. many times engineers put in extra parts that are put there under good intentions for best engineering practices. They may increase reliability, but again, more parts also means more parts that can fail, so it is a double edge sword.
You need specific parts to make a circuit operate. too many, and you drive up the cost of manufacturing, and thus reduce profits. Ideally you want the minimum number of components required. Extra parts that do little besides provide redundancy and no performance increase also increase the chance of failure, so get rid of them.
This cap across the input supply voltage is just a duplicate to reduce noise a bit. There are caps across it on the other end of the cable too, in the power supply.
I have the 42 inch version of that TV, it has been a great TV, however it is gives off a lot of heat, which I suppose is not a problem in the great white north, however mine is in Florida. The "smart" tv apps havent been supported in years, I plan on keepiing it until it dies, heck for what I paid for it, you could buy 2 or 3 4K tv sets at 55 inches. if it ever does stop working I will count the blinks and refer back to this video. cheers.
You think this throws heat you should try the 63 Samsung I have. It warms the room nicely. How about the monster 104" Panasonic plasma. It draws 20 amps @ 240 volts. About 4500 watts!!!!! This one 350 watts. I have an older 42" sd panel that draws more.
So very true! We are in Central Florida and also had a plasma for a while but had to get rid of it because it just created too much heat 85% of the year. Now, when the seriously cold waves hit and the temperatures plummeted down to around 65-68°f (brrrr), it was fine because we could heat the whole house with it. 😎
@John Hooper
Yes I am aware of this. This TV is now one of my spare sets. Has not been used since I fixed it. I now have 3 perfect working Panasonic plasma TVs waiting for one of the others to blow up so i can use them. So I guess you know what yhay means. I will br watching plasma TVs for a long, long time.
I have a 42thx certified, 46 and 50 waiting to be used.
@John Hooper
That doesn't annoy me. I like them when they last forever. You actually think I enjoy fixing this crap?
Dave,
Thanks for the lesson. I see that your set consumes up to 331 watts of electricity. Do you watch it enough to notice a difference in your electricity bill? I've also heard that these plasma sets can put out a lot of heat as well. Is all that heat a problem or is it a problem that is over exaggerated?
Regards, Tom
331 watts full white screen brightnes set to max. In realith is is more line about 130 to 150 or lower on dark scenes.
@@12voltvids Thank you for the quick reply. What I always wondered is, if you're watching a plasma set as your main TV set, would raise your power bill substantially?
At a rate of 0.12 per KWH running this TV for 3 hours would consume just under 1KWh which would cost .12 so about .04 per hour to operate.
Our electricity here is .08 for the first 1360 KWH in billing cycle and then just over .13 for the rest of the billing cycle so no they don't cost that much to operate.
All the wall warts, phone chargers, modem, cable boxes and all other electronics in standby 24 hours a day uses more.
@@12voltvids Dave,
Thanks a lot for the detailed answer. One thing I've always appreciated is that you've always taken the time to answer my questions completely and thoroughly.
Ah, a late model Panasonic plasma - should be well worth hanging on to (substantial power consumption aside). They finally started using shielded panels in '09, so these should no longer be crapping all over the AM bands like the older ones did. Plasmas were a real plague - they would be directly radiating through the front of the panel, wreaking havoc on mediumwave and lower shortwave for quite a distance. My parents used to have an '06 Panasonic 42" 720p - great picture (these tend to have superb contrast), but it sabotaged my shortwave reception about 8 meters away pretty good. That one was reasonably power-hungry as-is, the 1080ps tended to be around 500 W if memory serves.
Oh, and of course ceramic caps don't short _for no good reason_ ;) - usually it's the formation of microcracks caused by large temperature gradients within the part (easily generated e.g. during hand soldering), followed by silver migration through these propelled by applied voltage. I would tend to stick with automotive grade parts (which are of different construction and, in general, a good bit larger) or even traditional through-hole disc caps.
Having problem with Panasonic TX-42AS520B
Red Standby light continues flashing like 2 seconds gap. Had this issue first time like 2 weeks ago when it was not responding to remote and then tried from the power button on TV and first few times it did not worked. It tried to turn on green light flashing then green steady light and then red flashing light again but after few tries it did came on and was working fine untill now it happened again doing same thing.
If I press power button on TV it does cone on, sounds is there screen flashing white colour 3 times with 1 or 2 sec gap and after 3rd flash it cutts off continues red flashing light.
I have done all the basic like turning off from mains from mintues to hours even over night but still the same.
I dont understand why it would start with flashing light when powers been off and when you turn on it should be standby atleast then but no so something its reading faulty even after restarting without trying to turn on.
I am very technical minded and gets my hands on anything and not scared of opening and fixing anything and did few TVs as well in the past. Just needs right direction. Is it the power board I am looking or main board. I will be happy if I can fix the current ones if not changing board should fix it.
I have got VOLT Meter if it needs checking voltages and Soldering Iron as well some where.
Sorry for long message I like writing in details. Any help will be highly appropriated.
I have the 50" version of that TV from 2011. Great set, I will miss it should it die and not be able to be fixed
why tv works without a capacitor ?
I’ve come across some shorted ceramic caps, sometimes I can’t find the value to replace them. Does it cause any issue if you don’t replace?
How did you obtain the manual and schematics for that TV I also have a Panasonic plasma that is currently still functioning but just wanted to know should I ever have an issue thanks and fantastic video keep up the good work
Hi -we have a Visio 3d 55" Led TV which lost color in all inputs. Smart features have color but all inputs show B&W only. Model is M3D550KED, s it worth fixing? Thnx. nrg16108 at yaho.
I have this TV but it is a 50" Model TC-P50U2 with 10 blinks. I have replaced the A Board and Power Supply Board but still get the 10 blinks and still don't get the 2 LED lights when powering on. Do you have any suggestions please?? Or does anybody have a suggestion?
Excellent troubleshooting. Just wondering where you acquired the service manual pdf. I have a Panasonic 42" which as been trouble free but tomorrow is another day eh! The only sign of a possible problem is that in a few random and far between times it turned on looking super saturated in color. Cycle the power again and all is OK. Strange issue but can't chase a ghost ... Thanks again.
G O O G L E.
Thats where I find my service data. Sometimes it takes some research and there are times I have spent more time looking for data than actually fixing it, because many of the searches lead to commercial sites where they want to sell you the data. I have never paid for any service manuals. They are out there, you just have to look. Sorry I can't be more specific, but every one is different. Some times I will find what I am looking for in minutes, and sometimes it takes days of searching.
@@12voltvids that's what I suspected and also my experience in the past. I had just asked in case you had the "mother of all manual sites". Much appreciated!
i have sanyo 42" plasma that blinks green light is it bad mosfets if so how do i test em
I have the Panasonic TC-P50GT30. First it had the 7 blinking lights. Got the TNPA5335 repaired and installed it 9/29/2020. Now the TV is blinking 8 lights. Any suggestions?
I have one but you probably won't like it.
@@12voltvids Wild guess! Purchase an Oled.😂
@@JohnSmith-wj4sh Pretty much.
Check your connections on the boards, but plasma are complicated beasts. I have fixed a number of them, but even now I am leaning away from any and all TV repairs. The price has fallen so fast on TV that they are just not worth spending any time or effort on. I don't know that I would buy an OLED set though, due to the burn in issues. The SS board is a common point of failure for the 8 blink code.
Here is one I had.
th-cam.com/video/zYoxAqaKoBw/w-d-xo.html
This is my set, and it still works after I rebuilt the SS board.
Hi and Thanks For the Great Video....I Have a 50" Plazma Panasonic Doing the Same...Now I Might Be able to Fix it, and not have to buy an new TV.....Can You Please Provide the info on the part replaced...I Know mine might be different but fyi and I'm going to be looking at mine today 08/28/2021...Thanks Again...
I have one like that and it had 11 blanks couldn't figure out what was wrong with it
Panasonic don't show an 11 blink code. Goes from 10 to 12. 12 is an audio amplifier or speaker fault.
Hello, I am from Belgium and I am looking for a motherboard for my LG 60PN6504, EAX65071308 (1.2) there is no EBT number, I have been searching for about 3 months now but I have not found a single motherboard. TV has been used since 2013, but it hasn't actually been used that much before.
Hey my tv has the same exact issue and is the same exact tv model ! Can you pls tell me where can I get this “ceramic pc “ at sir ?
I didn't replace it. Extra parts. Not needed. There to filter possible RF from radiating. As if i care about interfering with am radio. After all, it's a plasma. They blow out all reception in the vacinity anyway.
I have the same tv if I dont have green lights on my board what does that mean
I'm lucky I have the 50" and I just love the quality HD,connected to a Bose sound system like going to the cinema.
Yes I have a 50 as well. In my panasonic collection I have a 42SD, a 42 full HD, a 42 THX certified 1080p, this one, and a 2012 50" 1080 set. I also have a 50" panasonic that has a seperate tuner box but that one is not fixed yet.
Other plasma sets I have are an 720p 42 LG, 720 50" samsung, and 1080 FHD 63 samsung. I have 3 more samsung plasma sets that have panel problems (vert line or 2 in the screen)
What causes the black vertical bars on the plasma sets?@@12voltvids
@@petenamlook18 I have know idea mines never done that
@@petenamlook18
A back vertical bar approximately 1" wide is usually caused by a connection between one of the FPC tabs and the C board along the bottom. It could be caused by a bad drive IC on the FPC as well which is non repairable.
A single vertical line line (black, red, green or blue) is a failure of the drive IC on the FPC that corresponds to that area of the screen, or the panel itself.
Single line failure requires replacing of the panel to fix.
1" wide might just need one of the connectors restated.
If it is a horizontal line it could be the a connection between one upper or lower buffer and FPC on the left side of the screen looking from the back.
Or it could be one of the buffer chips on the buffer board. If it is on the top half it would be the upper board, and lower half the lower board.
I have a total of 11 working plasma screens. 2 of them have single vertical line failures which is the panel. They are used for gaming, and an advertising display, and one has a small crack in the glass, but the set still works and I watch that one daily on the news channel so it is getting a real nice permanent burn it from the TV station logos and news ticker. Out of all those TVs I watch 3 regularly. The 2 with bad screens are used for gaming and digital signage, and the rest are sitting at the back of a closet awaiting the day when I need to put one in service when one of the others breaks beyond repair. I got all except the first 2 for free. I have had many more, but I do sell my spares for those people that want a plasma. There are people out there that seek out plasma TVs now that they can't buy them anymore.
I have 4 Panasonic plasmas... 50in.. I wont purchase any other TV but a Panasonic.... Their plasma line are true work horses... I had one 55-inch that stayed on for 3 months straight without being turned off.... The only thing that ever happened to it is the asshole Comcast guy reconnected the television straight into the wall saying that it would be a better picture... 2 days later an electrical storm fried my HDMI 1 and everything that was plugged in there after.... Laptop... Passport external hard drive... And a crappy MP3.... All because of Mr. Xfinity... Of course they would accept no responsibility..
What a cute cat, nice, loud and purrfect. She stole the show.
Yes loud and friendly. He stole the show?
@@12voltvids my bad
I kind of wish Plasma TV's stuck around longer...seems like such a promising technology, though probably bigger and has more componets then a modren LCD panel.
Plasma went out of production because it cost too much to make. Now OLED is the king of picture quality.
How can get my Panasonic tv to work I don’t have the remote it will come on it will click on but know pictures come on
I have almost the same TV from the following year, even the same size. I also don't want to get rid of mine. Gonna keep this video handy in case anything happens to it.
Dave. I’ve seen several videos on another site where shorted SMD caps simply aren’t replaced and the device works fine. Also open resistors are replaced with a piece of wire. If these fixes work , and they obviously do, what’s the purpose of the original, now defective, components?
The SMD cap is not required. It is just to filter ripple, and is more to help stop the TV radiating and causing interference to AM radio. The SMD resistors you see jumped are 0 ohm jumper chips and they can be safely removed and a wire placed in. If it were a real resistor, 10k 22k ect and you put in a piece of wire you would be asking for trouble.
Thanks for that information Dave.
Panasonic 50'' Model TH- 50PH20W ,4 blink code problem my help please
God job! I have more that capacitor ceramic like this into DVD HT philips. can replace with 100nf ceramic THT ?
If shorted, you can't really know the value except by size, voltage and application. This one I would guess is 5 or 10uF, used for supply voltage noise filtering. It's large for a ceramic. In this application the value isn't critical at all.
@@thulinp is non polar capacitor smd. Can use polar capacitor?
That depends how it's connected. Better to use a larger non-polarized cap.
Note that I know nothing about your cap. The one in the video is 5 to 10 uF.
You are GOOD! Seriously, though, how long did it take to spot the shorted cap? 😁
Is there any equalent of MIP3E5MY ?
Please I have TC-P50X1 with 12 blinking code please can you help me to solve it
Dave you are right, panasonic and pioneer were the best sets
My guess is that some line over-voltage spike, possibly from lightening, may have blown the bypass caps. Maybe the blown fuses may have been part of the damage from the spike.
No lightning here. We are in an area that sees lightning perhaps once a year, and it is usually only a flash in the distance. Also, no blown fuses or any semis. Just one shorted ceramic cap.
Damn, I have 50inch. that has the same error code and problems, I'll follow your troubleshoot solutions, hope I find it! Otherwise, I'll just replace that board...
I have a panasonic 55 inch plasma with 10 blinks. I hope its the same problem. Thanks a lot!
I'm glad I found your channel. Its not only interesting but its informative. I never repaired anything in my life. But its good to watch just in case I get a hold of something I actually want to @t a S-VHS VCR or a Minidisk deck ( which I already have,Still working) . You have a subscriber for life.
I have two of these Panasonic plasma's. Great TV's. Zero burn.
Wow!!.. it was miraculously repaired, keep on bringing much more videos.
Very good this repair, very nice job!
Don't overlook those nasty ceramic caps.
Hi great job you did very good I have a 50 inched Panasonic plasma that was given to me with the same problem as yours I plan on fixing it and keeping it my name is Roger Anthony Ash great job.
Nice one, just in the process of watching some of your Panasonic plasma vids after picking up an old one that works so no play time lol. Just noticed your new channel photo, why so serious looking though?
Time for change.
@@12voltvids Yeah, just struck me that you didn't look exceptionally pleased with the award. Still kind of confuses me how you don't have more subscribers honestly, guess there's only so many folk interested in learning this kind of thing or seeing cool old equipment fixed.
@@danmackintosh6325
The serious look was intentional.
I have a 58 plasma takes 15 minutes to come on any ideas
Capacitors. Don't ask which, as I have no idea. One of them somewhere.
Very excellent job on component level troubleshooting!!!!
I think so, but 7 so far don't. Those 7 are probably the same ones that tells the receipt checker ot Walmart or Costco to go f--k themself.
Excellent repair, thanks for sharing, always a pleasure watching your videos.👍