Master thread for Panasonic plasma not turning on - Page 53

OK, I just got bitten by the 10 blinks of death. Circa 2008 TH-50PZ80U (about $2400 new) just failed.

Repair estimate @ $500.00, but it seems the P-Boards are really hard to find.

After paying the $500, I think I'm going to put this in my spare bedroom for infrequent use and get a 65" plasma (non-Panasonic) as a replacement.

Any recommendations? Budget is about $2K. Don't need 3D, but want the best picture possible.

BTW, has Panasonic corrected the power supply issue in the new models? Was this only a problem with 2008 through 2010?

Thanks in advance.

You can probably get it repaired for far cheaper. If you or a friend can work on simple electronics, beginning with this link would be a good start. Otherwise, there are repair services on eBay for your power board for about $100.

Hi
I have a Panasonic TC-P50S30 Build date May 2011, It's only been in use for a year, about a month ago number 1 hdmi connection went bad so i hooked up the third one on the side everything worked fine, so just short one connection.Month later came home from work and it wouldnt turn on. My wife said they had been some lightning that day so i assumed the worse. Nothing else that was plugged to the surge protector was hurt but the tv. The tv shows no sign of life no blinking lights nothing. So i bought a power board for it and put it in was easy to install but still no sign of any life, so what do i try next? Any suggestions appreciated.

If lightning was struck through the ANTENNA cable/input, then likely the TUNER board got fried!
Check all the boards for signs of burnt/brown components!, could be chains of components/boards/flatcables are fried by overvoltage of the lightning!

@ tomwil,

I already have the TV at a local service shop, but have noticed that the P-Board repairs are commonly offered on ebay. Do you know of a reputable board rebuilder there (or anywhere)?

What I don't know for certain is if it is the P-Board, as there can be lots of things that cause the 10 blinks if I understand correctly. Later, I learned that I could solder a couple of capacitors to the "MCX01" boards, but I may save that for if it fails again. Alternatively, I would just buy a new P-Board, but they can't be found anywhere? High demand maybe?

What I would really like to know is did Panasonic fix the apparent flaw in their Plasma TVs so this won't keep happening?

What I really want to know, is what 65 inch plasma is worth the money today? I appeal to the experts here to guide me.

Hi Mv, I have a TC-P50S30 (4 months old) with the exact same issue! The TV just went unresponsive when we turned it on! No power light, the power button (on tv) wouldn't clink, no nothing! I ordered a new power supply from ebay ($40) and installed today! STILL NOT working......However, the power button clicked when I tried it the first 3 times, then stopped clicking after pressing. I don't think the power light ever came on. The 5 fuses showed continuity. There is power going to the power board (checked with voltmeter). I seems I get some sparking at the plug when I plug and unplug the tv! Could some please send a schematic? What else could I try to trouble shoot this beast! Thank you all!
Has anyone given you a response from your last post? Good luck and I'll keep you posted

You can download the Service Manual with schematics here: http://elektrotanya.com/panasonic_tc-p50s30_chassis_gpf14du.pdf/download.html

Inside the manual is the Trouble shooting flowchart/section for common possible faults/solution.

Visually inspect/check all the boards/cables for signs of burnt/smell components, brown/broken printlines/boards/layers, lose/defect cables/connectors, popup/bold elco/capacitors etc.

Call the panasonic tech support about common failure/solution of this model tv.

You have warranty, just get a factory repair/replacement!

A useful video on fixing the 301/201 boards.....

http://youtu.be/LjpGKaBt8hg

Thanks for posting this video link!

I liked the cooling test to check the malfunction.

Paging stephensank - is this about how it goes? It seems doable.

Well, I have yet to see the TDA chip go bad, just the ceramic cap, and a surface mount electrolytic is nowhere near as reliable a choice as a polyester film cap, but otherwise accurate. HOWEVER, it is unnecessary & a bit risky to remove the PS board from the heatsink plate, as it's not necessary to remove the MC201/301 modules to replace the caps.

I know this is a month late, but pm sent.

Just checking in.

I have a Panny TC-P42-C2.

I got the 10 blinks.

Sounds like the power board from what I read here.

My power board is labeled with this.

N0AB6JK00001

shopjimmy.com has the part.

http://www.shopjimmy.com/panasonic-n0ab6jk00001-power-board.htm

Will that fix my woes or are there any other small boards that could be causing the 10 blinks?

There is not much to this TV compared to some of the more advanced models.

If anyone could let me know that would be great. Thanks!

So about 3 years and 4 months after buying my TC-50PS14 from Costco, my TV set went out and has the 10 blinking light code. Wife and I tried talking with Costco and Panasonic, but since it's 4 months past the 3 year warranty (2 years costco, 1 year manufacturer's?) they say they can't do anything about it besides offer a number for an authorized repair company.

I've looked up a bunch of info the past couple of days, and someone on Fixya said it's simply just replacing the P board (Power Supply Board). I have the part number for that, so I may attempt to buy one of of Ebay and do it myself (They say it's as easy as putting in RAM in a PC, heh. Just there's 50 some odd screws to deal with to get the back panel off).

Someone else on FixYa also posted what they claim is the codes for my model, but the 10 blink code there lists: Sub 5v SOS / Main 3v SOS DG Board
DTV 9v SOS / Tuner Power SOS, which I have no idea what any of that means.

Then here on AVSForum a few pages back, there's mentions of the mc201 and mc301 board that's attached to the Power Supply Board needing a small change, but on my TV's specific power board (ETX2MM747AF), I don't think it uses these smaller mc boards at all.

Any help is appreciated guys. Wife doesn't really want to buy a new TV (though the newer 55" Panasonic LED at Costco does look nice!).

Had a brief power outage and now my TC-P42C2 will not power on. Tried different sockets, a different power cord but it doesn't show any signs of life at all; no blinking, no clicks, nothing.

I am understanding I may need to replace the main board, part # TNPH0831A? I can not find this board anywhere it seems.

With having past electronics and soldering experience, should I be able to open and reasonably identify a bad cap or fuse?

Any help is really appreciated. Thanks!

Guys with the P42 models... you need to segragate the boards and check the power connections with a multi meter to determine where your problem is. Just because you won't get any power doesn't mean you have a bad P-board. It could be the SC board, could be P board, could be SS, could even be A . Don't immediately just assume it's the p-board. Mine ended up being the SC board when I had the 10 blinks.

I'd appreciate if someone can offer some input as to whether the issue with my TC-P55ST30 is the "A" or "P" board.

When I plug in the power, I get a constant red LED. This leads me to believe that it is the P board.

When I hold the power button after I plug in the power, I get 14 blinks on the LED. This corresponds to an issue with the A board.

So basically, my question is, should I go with the LED status right when I plug in the TV or the LED status after holding the power button.

You can download the Service Manual with schematics here:

http://elektrotanya.com/panasonic_tc-p50st30_chassis_gpf14du.pdf/download.html

Inside the manual is the Trouble shooting flowchart/section for common possible faults/solution.

Visually inspect/check all the boards/cables for signs of burnt/smell components, brown/broken printlines/boards/layers, lose/defect cables/connectors, popup/bold elco/capacitors etc.

Call the panasonic tech support about common failure/solution of this model tv.

Just get a factory repair/replacement!

Just thought I'd throw this out there, I put my old power board on eBay, got a new one from Tri State Module (great service BTW).

I'm sure someone on here can fix this board and get it running, I replaced the transistor back in January, it ran for awhile, then it stopped working again. The 3 diodes by the transistor need to be replaced.

Open to offers as well. Just PM me.

Link:

http://www.ebay.com/itm/290777256790?ssPageName=STRK:MESELX:IT&_trksid=p3984.m1586.l2649

Just be aware that you may be setting yourself up to lose an eBay dispute if a buyer complains, requiring you to refund the purchase price and shipping.

You have the condition listed as "Used", which means "The item may have some signs of cosmetic wear, but is fully operational and functions as intended." Your item is not fully functional.

You may want to consider changing the condition to "For parts or not working", which is described as "An item that does not function as intended and is not fully operational. This includes items that are defective in ways that render them difficult to use, items that require service or repair, or items missing essential components."

This is explained on eBay's Condition page.

Thanks for posting this.

I didn't even see this option.

I just changed it.

Appreciate the input.

So we had a TV repair guy take a look at it today (mainly so we could get an estimate and give that to Panasonic, who *may* or may not offer to pay for some of it. He used his voltometer thing and did some testing, and came to the conclusion that the Y-Board and the Buffers on the left hand side (from the back) were shorted out. Gave an estimate of $450 to fix it (for the parts and labor).

Didn't look "as easy as putting in RAM", as these 2 buffer boards are behind the HDMI/Connections panel, as well as each one has maybe 7 ribbons to connect to the screen. Wacky.

Wow ... $450. The diagnosis given is a big help, and saves you from purchasing unneeded boards. Although there is a method to diagnose even farther, to determine which SC-SU-SD board is actually bad.

As an alternative, you could purchase the SC-SU-SD boards for your TC-50PS14 from eBay for around $150 total, and put them in yourself. Although a little more difficult than sticking in RAM, if you are careful and take your time, it can be done rather easily.

So, after two weeks my TV came back from service. It worked for nine days, then wouldn't turn on and threw a two-blink code. Fortunately, the service company has a warranty, and the TV is back at the shop for (apparently) no charge.

What is interesting is that both times the TV failed, it was when it was turned back on after being on, then turned of for 45 minutes to 2 hours or so.

Does that provide any hints for the experts on here?

Quick shout out from the UK here.

Thanks to the guys who found out about the 1uf Capacitor.

Tv was coming up with the 10 Blinks intermittently and required the cable pulling for short while to get it working again. also swapping HDMI port sometimes helped. after about 2 weeks it died with just 10 blinks everytime i turned the power button on.

Scratched my head a few times and read the service manuals. managed to test the TPVSUS and TPVDA which were both dead.

I tested the capacitor by putting my multimeter in beep mode. hold it one way for 5 seconds then reverse polarity and got a short PIP on the working capacitor on the MC201 board. No PIP on the capacitor on the MC301 board.

Not wanting to push my luck I only replaced the MC301 capacitor.... pretty hard with a fine nosed bit as the end wouldnt heat up enough to melt the solder so i held further up the nose for an instant melt and dropped it into place.

Anyway job done, TV work's, Wife and kids happy and only cost me £0.89pence!

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I bought a 42" Panasonic plasma TC-P42U2 on 4/19/2011. About six months ago it would occasionally not power on when I hit the power button. It would act like it was going to power on the red light would not blink and then it would power off and try to turn on again. It would repeat this process over and over. If I unplugged it and waiting about 10 minutes and plugged it back in it would usually turn off. Gradually it would turn on less and less. Now it will not turn on at all.

So the question is what do you think needs replaced and how difficult would the repair be? I have some repair experience, I can take a computer apart and put it together blindfolded but have never dived into a TV before.

Thanks.

No help here? Looked over a few threads and I think it is the A board but want to be sure.

Fortunately for some of you, I broke the glass on my TH-46PZ85U this week so I'm parting it out. If anyone needs parts PM me. Thanks.

Blaster, I finally did get the 4 month old P50S30 to work....First I replaced the power supply board.... nothing. Then I called and set up an appointment with the damn repair guy who charged me $75. He called Panasonic and then he told me the bad part was the Main Tuner board, also known as the A-Board. After the guy left, I noticed there was burn marks on the board where the HDMI plug was soldered to the board. I found cheap boards on e-bay. Make sure the TV is unplugged before you do any work . I never did find out if it was a lightning strike OR if someone plugged the wrong connector into the hdmi. Maybe someone forced the correct hdmi plug in the wrong way....hhmmm, it works great now. Good Luck and let me know if I can be of help ! Bill
PS A-boards are definitely interchangeable with 46S30, 46ST30, 50S30, 50ST30. I'm not sure about the P-board. Both boards were under $35!

Thank you for the advice! I bought the tv from a tenant who bought it used from AMAZON. No warrantee! I think the tenant plugged something in the wrong way in the HDMI socket as it was a little bent and there was some "charring' where the hdmi socket is soldered to the board!