or Connect
AVS › AVS Forum › Display Devices › Plasma Flat Panel Displays › Master thread for Panasonic plasma not turning on
New Posts  All Forums:Forum Nav:

Master thread for Panasonic plasma not turning on - Page 61

post #1801 of 1980
So now I am back in the same boat but in a slightly different way. The TV will operate for about 15 minutes and then shut off and give me the 7 blinks. If I unplug it and wait for it to reset it will power back on but shut back off after another 15 minutes. Any ideas? So frustrated...
post #1802 of 1980
So I followed the SD/SU isolation procedure and the TV will very briefly power up with the SD board disconnected, but will not power up at all with the SU board disconnected. Am I safe to assume that I got a marginal SD board and to get a replacement from the guy I bought it from?
post #1803 of 1980
Turns out I'm one of the lucky few who bought a bum ST60. Be warned, they had to order replacement parts from Japan so repairing it is going to take longer than a week. With all the babying I had to do to reduce IR and now this, I can understand why plasma is losing ground in the marketplace. Yes, it looks great, WHEN IT WORKS.
post #1804 of 1980
Have a TC-P50S1. Won't turn on, 1-blink. Sometimes relay clicks but goes off after about 3 seconds. Anyone have a fix for that please?
post #1805 of 1980
It's really great that Panasonic has the replacement part on backorder so that the technician had to cancel my appointment a day before it was scheduled. I keep hearing such wonderful things about their customer service, from my perspective I can barely sense they care at all.
post #1806 of 1980
Well my set(TC-P42C2)is over 2.5 years old and has been broken for almost a year now. I tried to trace the bad part myself and there has not been much help here either. How are the Samsung Plasma's?

I am hesitant to get a Panny again..
post #1807 of 1980
Hi, All!!

i have determined that i have a bad sc board by some post in this thread!! THANKS FOR THAT GUYS!! can any one tell me what kind of ohms i should be seeing on the transistors?

also if someone had a schematic and/or service manual for a 42" Panasonic plasma that would be great!!

Thanks
post #1808 of 1980
So if I can't get anything to come up when nothing is hooked up(seperating the SC,Etc) via the powerboard can I assume the Powerboard is the culprit?

Panny TC-P42c2
post #1809 of 1980
I am having the same issue with my friend's tv - tcp-46s30. What did it turn out to be for you? I replaced power supply board but that did not fix the issue.

Mike
post #1810 of 1980
I am not sure it is worth my trouble. The TV cost me $399 on sale 2.5 years ago. The Power Board is close to 100 after shipping. I am not even sure that will fix it. A guy here can look at the set for $90 an hour. So if he takes 2 hours and says it needs a board I might as well buy a new TV.
A new Samsung 43" Plasma is $388 at Sams Club...
post #1811 of 1980
quick setup; In our computer/video gamer room, I have a TC P42S2 made in 2010, plugged into a decent Panamax surger protector/conditioner (about $80). We have a storm short, intense storm that didn't cause a power outage, but might have created some brownouts/surgees. In same room is a Dell descktop plugged into a Tripp-Lite line conditioner AND battery backup.

I come home from work and the plasma is dead; no clicks, no LED flashing, totally inert. AND the Dell has no output coming out of the video card-outputs (but it starts). Turns out that was a dead video card that I replaced & now it's fine.

I did a bunch or research...found this thread & others. and I keyed on the power supply board I tested the fuses...fine, I wasn't sure if I was testing the MOSFET properly, but I think it was OK. But hearing all the stuff about the power supplies, I got one off of ebay$40 delivered (from a vendor with great/voluminous feedback). Just tried it out....still no sign of life.

To me, that signals that maybe it's the main processor board...the one that has the switches attached to it. But before I replace it blindly, are there any things I can do/test to see where things are going wrong? Maybe there's a way to see if power is being sent from the power supply board to the others?

I love the panel, and I'd rather spend up to $250 repairing it than getting a new $500 set. Thanks for any help you can give me!!
post #1812 of 1980
TC-P54VT25 w/ Manu. Date of July 2010. 11 blinks which I believe is a fan issue. We also have an older 42" Panasonic HDTV that had same issue but was under warranty & repairman said it was a fan issue. No problems w/ the 42" that was repaired a year or so before getting the 54" one.

So I am wondering if it is on the TNPH0835 1 A circuit board that is the problem or is there more to it than just that board?

When we turn the TV on, the fans come on but the TV shuts itself down w/ a minute & flashes 11 times. I am not sure if the fans stop running & then the TV turns off or if the TV turns off & the fans shut down w/ it.

Also, is this part on backorder ?

Thank You!
Roxy
post #1813 of 1980
1st Post & I guess I didn't look at the date of post I'm replying to so will give er a shot. Anyway I've got a tc-p54g10 (2009). I'm getting a blink every 3 seconds infinitely. Started with remote not working, then worked OK with on-set Power button. Then over a couple months it was up to 20 times of PB pushes with no luck. So for can only find an mc401 on mine. Sound like a cap replacement candidate?
post #1814 of 1980
My Panasonic TCP65VT25 just died today. Out of the blue *poof* power light blinks 10 times.

Thank f**k I bought the extended 36 month warranty.I bought this set 2.5 years ago.

Still bracing for the pain in the ass to get this dealt with though. Had it shipped from out of town (Toronto to Ottawa).

*sigh*

Thanks forum for the info though on what the symptoms mean.
post #1815 of 1980
Quote:
Originally Posted by MilkManX View Post

I am not sure it is worth my trouble. The TV cost me $399 on sale 2.5 years ago. The Power Board is close to 100 after shipping. I am not even sure that will fix it. A guy here can look at the set for $90 an hour. So if he takes 2 hours and says it needs a board I might as well buy a new TV.
A new Samsung 43" Plasma is $388 at Sams Club...

Very hard to follow posts in a column of blob like this. 10 blink can be a number of things but with this model the most common board to fail is the TNPA5072 SS board followed by the TNPA5066 SN board.

On the SS board generally 4 transistors go short circuit and short the Vsus power from the PSU.

You might get some handy fault finding steps from this. This TV has the same boards http://www.badcaps.net/forum/showthread.php?t=30385

It is possible the SN could also be at fault or both of those to be faulty together as the SS and SN are connected to each other.
post #1816 of 1980
Hi all! Thanks so much for the great information. My TH-46PZ85U from 2008 was showing the 10-blink issue until I replaced the 1 uf caps on MC201 and MC301. It was quite a challenge -- it's hard to appreciate how small the surface mount capacitor is until you have to work on with with 50-year old eyes! A magnifying lens and small vice were indispensable.

Here's a few tips for anyone that might be up for the challenge:
1) Removing the module to replace the cap makes the job easier, even though without a wick it is a bear to remove the 11 pin assembly.
2) I personally found it much easier to solder the cap directly to the IC, rather than the PC board.

Here's 2 pictures to show the work I did:

http://www.woodlawnsound.com/Images/20130811_PanasonicMC301.jpg
http://www.woodlawnsound.com/Images/20130811_PanasonicRepair.jpg

With so many folks having this issue, I would think Panasonic should step up and start making the MC201 and MC301 parts available again...
post #1817 of 1980
My TC-P50S1 popped twice the other night. I've got 7 blinks. I went through the trouble shooting manual and found the YSUS board is bad. I have not been able to find a replacement board anywhere. After inspecting the board carefully I found the Q701 and Q702 transistors had holes in them. I am assuming these blowing where the pops I heard. I am searching for replacement transistors but can't find any information on the blown ones in order to find suitable replacements. Any help is greatly appreciated
post #1818 of 1980
Quote:
Originally Posted by toddy968 View Post

After inspecting the board carefully I found the Q701 and Q702 transistors had holes in them. I am searching for replacement transistors but can't find any information on the blown ones in order to find suitable replacements.

The service manual shows Q701 and Q702 as Panasonic part number 2SD0601ARL, and is available at Panasonic or Sears.
post #1819 of 1980
Quote:
Originally Posted by ryanw89 View Post

Hello everyone I am new here (unfortunately).

tcp50gt30 purchased in Erie, PA at hhgregg

I work at the store so I know the television originally came from a warehouse in Maryland.

Thursday night set was fine then all of a sudden it powered down. I am now getting 7 blinking lights.

Build date July 2011

Panasonic could care less because I am out of manufacturer warranty.

I'm somewhat handy with electronics and wouldn't mind repairing the unit myself. Does anyone have a active link to a service manual or experience repairing a gt30 series? Any help would be greatly appreciated.

Ryan

I replaced the su board with no luck. Any thoughts?
post #1820 of 1980
At the risk of high-jacking the thread, where are all of you guys getting service manuals from?
post #1821 of 1980
Quote:
Originally Posted by solfranbeth View Post

At the risk of high-jacking the thread, where are all of you guys getting service manuals from?

http://elektrotanya.com
post #1822 of 1980
Quote:
Originally Posted by ryanw89 View Post

TC-P50GT30 ... I replaced the su board with no luck. Any thoughts?

Panasonic had bad firmware for your model year set. When you replace the SC/SU/SD boards, you should also update the firmware.

Just curious, how did you determine the SU board needed replacing, and not the SC or SD boards also?
post #1823 of 1980
Hi everyone, I've got the 10 blink problem. I've got the Panny TH-C50FD18. I guess I'm one of the lucky ones, since mine lasted almost 5 years compared to other's on here and other sites. After doing lots of research, I did the P board ebay fix, where I found that there was really no problem with the board, but still got the caps/chips fixed anyway. So my question is, has anyone actually fixed the A-Board, not just replaced it? I'm getting lights on the SC and SS board so those are out, I've unplugged the A51, A52 plugs from the A board and still have the same blinks, A1 obviously turns off the blinking since it's powered by that plug. If anyone has any ideas, that would be greatly appreciated. I don't want to throw too much more money on this before just buying a new one.

thanks.
post #1824 of 1980
Quote:
Originally Posted by TCardenas View Post

I've got the 10 blink problem. I've got the Panny TH-C50FD18 ...

Is there anything plugged into any of the HDMI input jacks?
post #1825 of 1980
No, I've unplugged everything, also tried all 3 HDMI ports.
post #1826 of 1980
classic problem child 50PZ80u giving a code 4.
Here is the story ...

Had the standard code 10 so ordered a cap/IC kit and as a quick check until it arrived I grabbed some regular long stem electrolytic caps from Frys and stuck em on the 201 & 301. It started right up. But to test, I left it on over night. In the morning it was off with a code 4. Nearly everything I find on these TV's is the 2/10, nearly nothing on a 4 other than it is also P related. My question then, is the standard cap/IC repair related to a 4? If not what other direction do I go with this, or can I since the P boards are getting difficult and expensive to find?
Edited by niqht - 9/25/13 at 2:53pm
post #1827 of 1980
If anyone out there has a busted TC-P50S1 model and doesn't care to deal with the repair I will buy the YSUS board from you working or not. Please email me with YSUS in the subject line at Toddy_968@hotmail.com
post #1828 of 1980
I need help AVS brothers. I just turned off my TC-P50G25 using the remote and it made a much louder shut-off sound than normal. I could tell something happened by the sound of it. The red light was blinking three (3) times, pausing, then blinking three times again. I disconnected the power cable, waited and plugged it back in. When I tried to power it up it did not work and the red light is now blinking four (4) times. Can anyone assist? Not the best way to begin my weekend!
Thanks,
Jakes
post #1829 of 1980
This forum was extremely helpful about a year ago. I now have a new issue.

My Panasonic plasma TH-58PZ800U has about a 3-inch black bar running from top to bottom. It's cutting off the left side of the screen. (see attached photo).

I'm concerned that (1) this can't be repaired or (2) is so expensive a repair that I'm better off buying a new TV.

Please let me know your thoughts.

Thank you.

photo.JPG 329k .JPG file
post #1830 of 1980
Quote:
Originally Posted by ryanw89 View Post

I replaced the su board with no luck. Any thoughts?

Where did you purchase the su board? I have a GT30 55" sitting in my living room. It had the 7 blinking lights problem as well. The sites I looked did not have the part in stock. I'm not really sure what the exact part numbers are either.
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Plasma Flat Panel Displays
AVS › AVS Forum › Display Devices › Plasma Flat Panel Displays › Master thread for Panasonic plasma not turning on