Question about Panasonic Viera TH-50PX80U Plasma TV

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Panasonic plasma model TH-50PX80U will not turn on red light blinks twice pause then blinks twice pause and so on. could you tell me if that fault code is the 15v sos dboard

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

jerryg50
  • 1667 Answers

SOURCE: Panasonic 42" Plasma Television 2008 (4-blinks)

I have seen a fault where the Plasma display was giving sparkling green dots, and then the set would shut down after about 10 minutes. After waiting for about 40 minutes, I would re-start and the process would work the same, and then the set would shut down.

I tried freezing the boards one by one with freeze-spray, and heating with a heat gun to see where the thermo fault could be. I had no success.

Fortunately I had access to a scrapper set of the exact same model. After spending many hours with the process if elimination, I worked the fault down to be the screen itself! Unfortunately, with the scrapper set that I had its screen was very weak. Swapping the screens between the two sets proved that the original screen has failed.

I don't want to discourage you. You may be down to the point of what I reached!


Jerry G.

Posted on Feb 10, 2009

  • 2 Answers

SOURCE: my panasonic plasma tv has some error! the red led

Panasonic sent a repairman out with the correct part after telling them about the seven blinks. The unit was out of warranty. They rock. Call 800-211-7262 or 800-524-1448 1

Posted on Oct 06, 2009

tvservice306
  • 458 Answers

SOURCE: Panasonic Viera TH-42PV7HS Plasma does not turn

replaced su or sd board and check sc board

Posted on Nov 10, 2009

  • 8457 Answers

SOURCE: TH-50PZ80U POWER INDICATOR LIGHT KEEPS BLINKING

Power board it dead,take the tv aparts.Check for Capacitors parts for puff up or burst open.Know how to solders?replaced these capacitors in the power board.Or replaced the whole power board.Tries Shopjimmy.com,Ebay.com.

Posted on Jan 19, 2010

SOURCE: I HAVE A PANASONIC PLASMA TV TH-50PZ80U MODEL #.

With this symptom, it is impossible to tell what the exact "Cause" of this symptom is. The LED's do not tell us what is wrong, sometimes it may indicate the "Area" in your case it is the X board. BUT thats NOT where the "Fault is" thats just the part that is affected. These days unlike the "Old" analogue days it just isn't realistically possible to fix anything but the most basic of problems with todays sophisticated units. This is quite apart from the Safety aspect, any unit that can cause a firs or have an explosion, or both, is NOT to be treated lightly, and and the repairer, of the unit is legally responsible, another thing to think about. Also, one must have tools, a Multimeter, a soldering iron, a deslodering iron, an oscilloscope, a signal tracer, tools, and most important of all, a Service Manual, without which, there is no way to even begin to understand and fix it, and more importantly Program it, AFTER it has been fixed. As these days a TV, is a PC, a Tuner, and an HDTV Monitor, and more, all in one. in the "old" days TV"s were more, rudimentary, and built to last for 20 years, and a "Parts" supply was set aside. They usually used to fail for only a few reasons, and they while still difficult, were less difficult to repair. Electrical knowledge was transferable, and they could be and would respond to, This-is-the-symptom-This-us-the-Fix, But that no longer applies, as now, it can be a Fault on I squared Bus, or "Sensor" failure, or it simple may have "Crashed" just like a PC, It could be a Diode go bad, and that will stop the whole thing. You see, in the day, the sets were Very "Fault Tolerant" because they were Analouge, and a faulty, component, or more sometimes, the set would always diplay something usually, and when they didn't it was one of anly a few things, sure there are always the horrid ones, and there are pleanty of those, but all in all it was quite easy. But with Digital Electronics, it either goes, or it doesnt, there are usualy few half measures. I mean thats the definition of logic either going or not. So it can take very little to completely paralyse a set, and generally give the only sysmptom, it can, by not working, usually No picture, or the like. So you, see the list is endless almost for any given SYMPTOM, as that is what is being seen, not the cause, as I keep going on about. Also any fault, usually involves the Power Supply, it is either the cause, the cause of the damage, or it is damaged. or ALL of them. Then after you have done the electronic repairs, you then must program the set to work, and align, and set up in general, any one of those settings missed or done wrong, back to square one. So, it is nearly always my professional opinion that one should always get a "Quote" form the manufacturers recommended service center, I cannot stress how important that last point is. It is even worth the cost of shipping. you see an authorised service agent, will have trained staff, trained on their brand, also they have first hand access to parts, original parts. This will actually save you money and ensure you can actually get it back fixed. Of course asking for a "Quote" also gives on the option of repair or replace. Often my clients,do not go through with repair, unless it is moderate, but in some of the more costly jobs they see it, as do i, that a replacement, with a warranty, is a better option. As an aside here, one could then tear the TV down, and sell the Known Good bits. You'd be surprised who needs parts, i myself often must by from third party sources to effect a repair. So money could be recouped, somewhat,and help out someone else. Anyway thats my 10c worth.

Posted on Apr 02, 2010

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I have a panasonic th-50px80u viera and when I try to tuen it on, I get no picture and the red light blinks twice and pauses and blinks twice and so on. What could it that be?


Two times Bl9inks? [ 2 blinks 15v SOS D Board]. Check this voltage. If you wish to get some details, check this link. http://electronicshelponline.blogspot.com/ Selecting the view option, either to Mosaic / Timeslide / Flipcard, can be selected by the drop-down list, at the top left of the display window, will make surf easy. You can also do a search, by type in the brand name / model number / IC used, in the search box at the top right of the display window.

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1 Answer

Have a TH-50PZ80U and wont come on, light blinks 2 times


A 2 Blink error code is a 15V SOS. Either your D board ( logic pcb ) is bad, or you aren't getting your 15V from the power supply. Check the 15V line from the porwer supply to the logic board. if the 15V are there then you need to replace the D board. If they are not, then your power supply is at fault.

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1 Answer

Not turning on led blinks twice


If your model is the TH42PZ80U 2 blinks is indicating to replace the D Board (Logic) That model used two different versions D board. www.tvcircuitboards.com has both versions and can assist with determining which version your model uses.

Feb 18, 2012 | Panasonic Viera TH-42PZ80U Plasma TV

1 Answer

Power light comes on and 2 green led lights and three clicks sound. however the screen or nothing else will work on my panasonic plasma tv


Hello the blinking lights is a code to tell you what part of your tv has a fault. The service manual will tell you what the blinking code refers to. You can google the model number with the words service manual and you should get some results on where to download it.

You can get get parts for this tv at www.interliquidparts.com

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Plasma tv th-42pd50u not come on and keep blinking red light two times and then stop again blinking red light two times and then stop not come on


The light blinking twice means there is a fault within the system and it is a code to tell Panasonic where roughly the fault lies.
Go to Panasonic's web site and look for your set then input the fault code and hopefully they will tell you where the fault lies.

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1 Answer

Plasma 50 inches dont turn on


The power supply board is dead.Tries the websites like Shopjimmy.com,Ebay.com to buy the refurbish power supply board for the replacement.

Jun 22, 2010 | Panasonic Viera TH-50PX80U Plasma TV

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