Panasonic TC-50PU54 8 blinks picture flashes then dead

[Jeff Pepin]

Re: Panasonic TC-50PU54 8 blinks picture flashes then dead

thanks for your update .i have ordered same repair kit for a tc-p50U50 i noticed also arcing marks on the frame , for sure , the best solution are ReRouting an Hard Ground wire for all Grounds subject to arc again that i will do for sure thanks a lot , , Badcaps.net is dope!! thanks all for your sharing , i feel like home on your forum

[tw2005]

Re: Panasonic TC-50PU54 8 blinks picture flashes then dead

Update. The last two weeks TV has been making a buzzing sound while I have been watching TV or movies. Today it started crackling and popping as well and it finally gave out. These noises appeared to becoming from something that drives the picture or the power since they do not occur when muted. I now get the 8 blinks of death once again. I let it cool for a while and the picture came up for about 15 seconds then shutdown and now it will not come up again. Not sure if I have the heart to repair it again.

Sounds like if you had investigated the increasing noises , may have turned out the board was loose and poorly earthed since you mention arcing noises.

Were the screws replaced or tight with the first repair? I 've read the screws are part of the problem.

[spratt22]

Re: Panasonic TC-50PU54 8 blinks picture flashes then dead

Update. The last two weeks TV has been making a buzzing sound while I have been watching TV or movies. Today it started crackling and popping as well and it finally gave out. These noises appeared to becoming from something that drives the picture or the power since they do not occur when muted. I now get the 8 blinks of death once again. I let it cool for a while and the picture came up for about 15 seconds then shutdown and now it will not come up again. Not sure if I have the heart to repair it again.

[jasonisdn]

Re: Panasonic TC-50PU54 8 blinks picture flashes then dead

Hey guys. I found this tonight since my TC-P50UT50 made in June of 2012 just bit the dust. I am fine with working on the board and all but I just wanted to make sure the repair kit Jimmy sales gives the board location. Is it cheaper and maybe better off to replace the whole SS board?

[tw2005]

Re: Panasonic TC-50PU54 8 blinks picture flashes then dead

Do you have a link where I can purchase the repair kit?

As you'll see, kits vary but hard to argue with the SJ kit price.

http://www.shopjimmy.com/panasonic-t...repair-kit.htm

http://www.ebay.com.au/itm/PANASONIC...item2c8046a7c9

http://www.ebay.com.au/itm/Panasonic...item27e328f8b7

[Molinamike]

Re: Panasonic TC-50PU54 8 blinks picture flashes then dead

Do you have a link where I can purchase the repair kit?

[spratt22]

Re: Panasonic TC-50PU54 8 blinks picture flashes then dead

I followed the panasonic tech bulletin that someone posted earlier but only replaced the diode and resistor (which are the easiest to replace) and the TV now works.

Oops i meant to say only the diode and transistor

[spratt22]

Re: Panasonic TC-50PU54 8 blinks picture flashes then dead

I just completed the 8 blink repair on my TC-P50U50. I bought the repair kit (Panasonic TXNSS1SDUU (TNPA5623) SS Board Component Repair Kit) from Shop Jimmy. I have very little electrical and soldering experience but was able to complete it successfully. The kit comes with a diode, transitor, resistor and a chip. I tested my resistor and it still read 5.6ohms the same as the new one so I decided not to replace it cause it looked like a huge pain in the a**. I followed the panasonic tech bulletin that someone posted earlier but only replaced the diode and resistor (which are the easiest to replace) and the TV now works. I reccommend a 40W soldering iron with a pencil tip and a small flat blade tip as well as using a solder wick to clean up the old solder. Good luck to any completing this task in the future and join us in never purchasing from Panasonic again!

[mcf57]

Re: Panasonic TC-50PU54 8 blinks picture flashes then dead

I have TC-P50UT50 since Aug-2012 and all of a sudden yesterday TV went bad with 8 Blink behavior. I've extended warranty so trying to go through that first.

But after searching through different Panasonic service manual, it seems like issue is with specific Transistor on SS Board. Most likely Q16051 which is most commonly used IGBT in Panasonic Plasma. Attached is the Panasonic Technical Bulletin and the exact part u can order.

I have a TC-P50UT50 as well. I got this TV in April 2012. First, I lost its two HDMI ports around August 2014. I was then watching my TiVo through its HD Component inputs until I could maybe get this repaired. Recently, I got the 8 blinks of death too and was not happy that it has already totally failed. I did not get the extended warranty either.

I figured I had nothing to lose before I took it to a local repair shop so I called Panasonic up as an unhappy customer. I explained the situation and how I was not real pleased that two components on this TV failed within 2yrs of getting it. I have a Sony that is 3 yrs old with not a single problem and would consider Sony for my next HDTV purchase.

Long story short....Panasonic gave me a case number and told me to take it to a local designated shop for repair (about 30mins away). Along with my receipt from best Buy, Panasonic will now cover most of the parts cost for both of these issues. It will only cost me about $150 in labor charges.

I personally do not like getting extended warranties and realize they are gambles no matter how you look at it. I also figure I am still coming out ahead here as the GeekSquad warranty at the time was $200 for 2yrs.

In case anyone else has this issue, you may want to try something similar. Can't hurt and only will require your time to make the phone call.

[AnthonyR]

Re: Panasonic TC-50PU54 8 blinks picture flashes then dead

Where did u buy the replacement components?

[R_J]

Re: Panasonic TC-50PU54 8 blinks picture flashes then dead

I just repaired a TC-P50UT50 for 8 blinks, it was the shorted transistor, diode and open resistor as in the panasonic bulletin above, worked great after repair. Also I would check the grounds (board to panel) on the sc board, they were'nt the best either, clean with a bit of sand paper.

[pb86]

Re: Panasonic TC-50PU54 8 blinks picture flashes then dead

I have TC-P50UT50 since Aug-2012 and all of a sudden yesterday TV went bad with 8 Blink behavior. I've extended warranty so trying to go through that first.

But after searching through different Panasonic service manual, it seems like issue is with specific Transistor on SS Board. Most likely Q16051 which is most commonly used IGBT in Panasonic Plasma. Attached is the Panasonic Technical Bulletin and the exact part u can order.

[skillz83]

Re: Panasonic TC-50PU54 8 blinks picture flashes then dead

I have the same problem with my Panasonic tc-p50u50 plasma. I unplugged the ss33 cable and it stayed on, but no picture. What now?

[jtscout80]

Re: Panasonic TC-50PU54 8 blinks picture flashes then dead

I know. I appreciate all your time. Unless I order the C3 and SU/SD boards there is not much else I can do.

Did you ever solve the issue, or scrap the unit?

I have a similar unit (TC-P50UT50) with what appears to be an identical problem, any insight would be appreciated.

[kenvwjetta]

Re: Panasonic TC-50PU54 8 blinks picture flashes then dead

Thanks for responding. Does this mean that i have an expensive door stop?

I'm assuming that panel failure can't be fixed?

My tv shut down with the 8 blinks and came back on after a few minutes and work perfectly for a week before the second shut down.

I have not opened the tv yet because i was hoping that other people have a fix for it. I can see lots of ss and A boards for this tv on ebay to fix the 8 blink problem?

[freakaftr8]

Re: Panasonic TC-50PU54 8 blinks picture flashes then dead

Actually, is the picture normal during the flash?any vertical lines?

[freakaftr8]

Re: Panasonic TC-50PU54 8 blinks picture flashes then dead

You may have a shorted ic on the panel. One only other way to verify is pull the ribbons and visually blown

[jmillsintacoma]

Re: Panasonic TC-50PU54 8 blinks picture flashes then dead

Similar problem here. It's a Costco model TC-50PU54. Instant shutdown; 8 blinks.

If you disconnect the A33 ribbon to the SS panel, TV comes on. Stays on, and there is sound, no video (except a flash of the "HDMI1" panel in the upper left corner.

If you reconnect that A33 ribbon, you get the quick shut down and 8 blinks.

Put an ohm meter to the TP101 spot on the C1 panel and checked ohms to chassis. It reads almost none, so it's close to a short.

Everyone think that means a panel failure?

[kenvwjetta]

Re: Panasonic TC-50PU54 8 blinks picture flashes then dead

Hello,

My Tc-50pu54 just died and have the same 8 blinks problem. Did anyone find a fix for this? Thanks for any help.

Ken

[aasnowskate]

Re: Panasonic TC-50PU54 8 blinks picture flashes then dead

I should have stated my findings in that post with the jumper on.