Awsome, tried all the unplug, hold this button down and that button down. None worked and still I was not sure if my old plasma was worth saving nor what the 7 blinks of the red light ment. Now I know it istime to part with my 11 year old tv with the great picture when I watch not so new movies that my Q Led can not provide. Thank you
I picked up A 55" plasma set last weekend with a blown SC board but both buffer boards show no shorts. I went to remove the SC board and the screws were at least a turn loose. You can see the arcing taking place on the grounds under the loose screws. Panasonic was starting to cheapen their sets by 2011. No lock washers on the screws, a lower board count and no fans! The set weighs 79 lbs. versus my 50" which weighs 90 lbs. Almost every transistor and diode are shorted on the board. Most repair kits only include about half of the needed components.
Hi. I have a TH-37PH9UK (mfg 2006) that has the 7-blink problem. I checked resistance to GND of all the pins of the connectors along the edge - left side, bottom, right side. The bottom 2 boards, TNPA3802 and TNPA3803, had several pins with shorts. Got those boards off e-bay. They don't have shorts. Put them in, still have the issue. I don't see any melted ICs or evidence of caps leaking. Thoughts? Happy to buy parts from U if U have some to suggest. So panel LED green briefly, fans come on, panel LED 7 red then stays red. LED on the bottom right vertical board flashes green briefly, then off. I have a photo if want.
Hi just a small question i have a Electrolytic Capacitor, rated at 450v 10uf i can't find any charts that go to 450v what should the esr reading be please.
Our TC-P50GT30 just crapped out tonight with 7 blinks. Going to try to take it a shop here in Dallas and see if it's reasonable to get it repaired. Willing to do $300 or less, so hopefully we can salvage our 2010 model.
Hi From Australia, Re your post in regards to the panasonic plasma sets. When you are doing the continuity test on the SU or the SD board that terminal you are using is the hi voltage feed to the buffer board , not a ground connection . That test though is still valid. On the SC board and with both the SU and SD boards totally disconnected from the SC board. there is a small 2 pin socket on the left hand side of the SC board towards the bottom of the SC board and near the connection for the inter board connection of the sc to the SD board this appears not to be used and normally it is not used, Bridge this 2 pin socket and if your sc board is ok there is a small led light on the board that tells you that the SC board is OK and no fault found when re powering up the set . When i was repairing these set ( under warranty ) and with the 7 blink code , Panasonic would send me once ordered for this fault the SC, SD and the SU boards and were replaced as a package !! One way to fix a fault and never a component level , board change only ( a bit like the old valve jockeys in the days of B/W and early valve color tv ).
Hi, I have a Panasonic TH-42PV500PV which failed about 6-7 years ago but I have decided to take a look, weird fault when switched on it only shows a small disk of colored lights about 15 cm in diameter and nothing else, the red light flashes for about 10 secs then goes off but the colored disk flickers (bottom left of screen) anyone seen this before? When it originally failed the screen just got darker and darker over about 2-3 mins.
Strip it for parts, I see two nice fans there. Also the speakers and audio amp, I found a separate amp board on a TV once and I made a nice boombox out of it.
I have a 65 inch inch Panasonic plasma TV 2009 TV my TV was doing that before when I pressed the remote control for power it was doing I think the same thing what I did is I continually press the power button on my plasma TV and then it started working normal again just to let you know I love Panasonic plasma TVs and then I a 58 inch Panasonic TV I play my PS5 on it but one of my TVs has a burn mark from Grand Theft Auto 5 Online map the anti-retention line that goes across the TV and goes across my TV. Does that supposed to help it? I don’t know mines. Viera TV
Once it's burned it's burned. The white bar helps with image retention and is more for constant black areas such as 4/3 content to help burn in the sides to equalize the phosphor wear but once it's burned it's burned. I have an old plasma in the bedroom. The only thing i watch on it is the news from a local station and the station logo is permanently burned on the screen. I tried the white wash screen protector. Scrolling bar. Left it on 24/7 for 3 weeks and it's still there. It's toast. The screen has a crack in it too so it's a junk tv. That's why it's in the bedroom. Just watch the news in the morning as I am getting ready for work.
I have the exact same plasma with the same 7 blinks, spent hours fixing the SC and after many attempts to fix it I give up and i'm now looking for another board. Did you take the fail SC out of the tv maybe I can use it as core to try to fix the tv I have
If you know the exact board you need then eBay is your best best. If you can diagnose to the component level and have the desire to fix itself, buy the components. I have made a small fortunate ($10,000ish) repairing Panasonic plasmas over the last 2 years.
@@NunYa953 I have a dead 50'in Panasonic plasma that's dead it looks to be standby controller on the psu board, it seems a common problem with these tv's but don't get me wrong the Panasonic brand are really good and do go on working for many years.
a few weeks ago, we got the 7 blink red light and couldnt power up the TV. after hours of fidgeting and sitting, somehow, it was able to power up like normal. i think initially i used the original tv remote, instead of the universal cable remote, to turn the tv on. an hour ago, we watched something on appletv, and now, its giving us the 7 blink again. we've had our tv for almost 18 years, but dang =(
the dip8 chip above the blown IC looked misshapen too. or maybe it was just how the camera was facing!! oh yeah! do you have any videos on replacing the back-lighting LED'S on an LG flat-screen?? apparently the guy my uncle sent it into to get fixed said its not worth fixing that they go all the time on those LG TV's. and that they are hard to replace because their larger then usual one's. now i dont know whether i believe him or not! maybe he couldn't have been bothered to fix it. or if he was telling the truth my thinking was maybe they were being drove to hard as a design fault.. have you come across this with LG's TV's or heard that about them???
Never mind, you had a look and as you said you can't fix em all. I do wonder if those tiny heatsinks were bigger, it may not of killed the drivers. But manufacturers have progressively skimped on cooling on purpose :-(.
zx8401ztv Yes: to save cost. No manufacturer (especially not one with a name like Panasonic) wants to ruin its reputation by making products deliberately fail early. And realistically, it’s been nearly a decade since Panny stopped making plasmas, so one failing now is hardly a sign of premature failure (nor of planned obsolescence, which is largely a myth).
It is not recommended to put down a large plasma screen as the heavy plasma panel can break by its own weight!! Especially in the car, plasma should stand upright on its foot or box!
Well what can you do when the idiot owner tossed the base. I don't like servicing any tv without the base and I bvb am very close to pulling the trigger and not working on any more tvs. The more if these I see, the more I don't want to work on them.
@@12voltvids it's amazing where we're at. You can get a new TV for $400 which has comparable performance. And any OLED will soon outperform everything. If your tech fee is $75/hr (yea I know low) and parts are $100 - 3 or 4 hours you've bought a new TV with a warranty!
Plasmas are getting rare. It kinda sucks because I love the picture on them, but they are hard to find. I have an NEC plasma which is basically an LG panel set. it has vertical lines developing in it which is the little chip thats on the ribbons themselves. Basically garbage at that point. Just a shame considering I rebuilt the sustain board a couple years back.
Yip the drive chips on the panel ribbon when they fail the panel is shot. I have a couple that have that fault. One is now a game tv, the other my bedroom news tv and it is burned to shit due to global TV with their 3/4 screen format during the news. Big time burn in that shows on everything. Will run it till it pops then replace it. I have 5 good sets in reserve awaiting their day back in service.
@@12voltvids It depends. My television has to be of a certain size to fit the cabinet, so in my case you would be hard pressed to find one of the same size.
