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Panasonic Blinking Power light of Death

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Old 08-26-2010, 02:28 PM   #151
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Originally Posted by MacinMan View Post
When I watched the geek squad agent repair my tv under warranty It doesn't look hard at all. Simply disconnect the ribbon cables remove the old board and put tin the new one (if this is the same board) I had replaced. Actually i had two replaced but both were easy enough. Just remember there will be a lot of screws.

I'll add a quick note that my tv is a different model. but since the problems are universal it seems, I am going to take an educated guess that the layout of the boards is somewhat similar. Which means you'll just have to undress the back of the tv and the boards are right inside. No shielding past the back. At least not with mine.
Awesome, thanks. Can anyone else comment on the ease of replacing? Is there a diagram I can look at to see which piece is the D-Board? I'm certainly not new to dealing with electronics, just never taken apart a television before.
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Old 08-26-2010, 02:36 PM   #152
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You can buy service manuals for most TVs on the net, and they also have troubleshooting steps to try to figure out which component is faulty also I am told.

So I would suggest you try to get one and download it as a PDF file, but most charge money to do this.
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Old 08-26-2010, 02:43 PM   #153
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I agree. We are paying more for these new HDTVs but they seem less reliable than the CRTs they are replacing on average.

Of course the screens are bigger, CRT tech had well over 60+ years in refinements to make them as reliable as they became, and most were not made in China back then. I think the last reason is a big part of the problem. It seems that many times it is the power board, but often is is just a cheap 20 cent capacitor that brings down these displays now. It seems cheaper for the mfg to just spend an extra 20 cents for better capacitors than the work time/labor/CS time, etc to handle this issue later.

It seems all mfg are having this issue with capacitors and it is likely because the same source mfg is being used by many brands.
What I find interesting, is I've had 3 HDTVs that had failures. 2 were samsung and those were out of warranty. (well one samsung wanted me to send at my expense) and it was still in warranty. I didn't do it and gave it away. the second was a monitor and it failed within a year or 2. the third was this panasonic plasma which was repaired under warranty. The only hdtv i've had to date with no issues after 3 years of use was a westinghouse 26" . It seems interesting that a not so big name brand would outlast 2 popular brands without issues. The 4th TV is a sony 32EX400 LCD I'll see how long that lasts before, or if it has issues within the first year.

On a side note, i still think CRTs present the best picture. I never saw people debate over which the best CRT was like they do for flat panels. CRTs were just generally good.

I'm sure a blu-ray at 480i on a good calibrated crt or even 720p on and HD one or maybe even 1080i, wouldn't look bad, compared to SD content on some flat panels.
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Old 08-26-2010, 02:59 PM   #154
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Thanks! I'll look into that

Last edited by cyi106; 08-26-2010 at 03:01 PM.. Reason: Double post
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Old 08-27-2010, 09:10 AM   #155
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I have a Panasonic TH-42PX60U and I got the 5 blinking lights last week. After doing a whole bunch of research and finding out that the TV is not under warranty, I ordered a new D Board from Ebay. All signs point to that as being the problem, so instead of paying for an expert to look at it, I just ordered the part.

My question is - how easy/hard are D Boards to replace? Is it something I can easily do myself? Any walkthroughs or tips would be much appreciated. Thanks!
There is a current thread on AVSForum that explains how to replace the D-board on the TH-42PX60U that cyi106 started. Links are not allowed, though.

The service manual can be obtained free here.
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Old 08-31-2010, 10:55 AM   #156
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So a quick update - my th-42px60u had the 5 blinking light problem and according to the service manual (attached) it is the 5V SOS D Board. I ordered a D Board off ebay and installed it without a problem, but I still get the darn 5 blinking lights!

Is there another board that can be causing this problem? The only one that is listed in the service manual is the D Board.
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Old 08-31-2010, 12:16 PM   #157
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It is likely the capacitors on the power board.
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Old 08-31-2010, 01:01 PM   #158
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Thanks PC5...PM Sent. I want to get to the bottom of this issue!
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Old 09-04-2010, 02:11 AM   #159
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Heart broken over these red blinking lights on these Pani's....

I bought a brand new Pani TC-P54G25, 4 days ago and when I turned it on tonight for an hour or two, it just shut off by itself and started cycling the blinking lights; mine is blinking 7 times. I searched the web and couldn't believe that this is a common theme or issue found in these TV's.

I'm positive the store I got it from will take the return/exchange as it's within 30 days and in "like new condition" and I still have all the original packaging.

Nonetheless, can someone help with a little advice.... Do I stay true to my roots and stick with Pani, and exchange it for the same awesome TV that has a chance it'll fail again or go back to the store to get the 58" Samsung at the same price but also a great TV?? The store does price matching so I would of got a solid deal on the Sammy but went with the 54" Pani G25 as it was the "known badass" of plasma's. I'm kind of stuck on what to exchange it for.... thoughts/insight?
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Old 09-04-2010, 03:02 AM   #160
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Originally Posted by cyi106 View Post
So a quick update - my th-42px60u had the 5 blinking light problem and according to the service manual (attached) it is the 5V SOS D Board. I ordered a D Board off ebay and installed it without a problem, but I still get the darn 5 blinking lights!

Is there another board that can be causing this problem? The only one that is listed in the service manual is the D Board.
My buddy sent me this for my G25 but I think it's pretty much the same:

12G Models : X24 / C2 / U2 / S2 / G20 / G25 / VT20 / VT25

BLINKS PROBLEM CHECK POINT

2 blinks 15v SOS D-Board / P-Board

3 blinks 3.3v SOS D-Board

4 blinks Power SOS P-Board

5 blinks 5v SOS D-Board

6 blinks Driver SOS 1 SC-Board / D-SC FPC
SC Energy Recovery Circuit
D-SC FPC DET

7 blinks Driver SOS 2 SU-Board / SD-Board
SU/SD Connector DET
SU/SD Scan and Logic IC

8 blinks Driver SOS 3 SS-Board / SS2-Board
SS FPC Detect
SS Energy Recovery Circuit

9 blinks Discharge Control SOS D-Board

10 blinks Sub 5V SOS / Sub 3.3v SOS A-Board / SC-Board / SS-Board / P-Board
Sub 9V SOS / Tuner Power SOS
MIHO 3.3 SOS / LED 8v SOS

11 blinks Fan SOS A-Board / Fan

12 blinks Sound SOS A-Board / Speaker
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Old 09-04-2010, 04:23 AM   #161
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Originally Posted by ToeMas View Post
Heart broken over these red blinking lights on these Pani's....

I bought a brand new Pani TC-P54G25, 4 days ago and when I turned it on tonight for an hour or two, it just shut off by itself and started cycling the blinking lights; mine is blinking 7 times. I searched the web and couldn't believe that this is a common theme or issue found in these TV's.

I'm positive the store I got it from will take the return/exchange as it's within 30 days and in "like new condition" and I still have all the original packaging.

Nonetheless, can someone help with a little advice.... Do I stay true to my roots and stick with Pani, and exchange it for the same awesome TV that has a chance it'll fail again or go back to the store to get the 58" Samsung at the same price but also a great TV?? The store does price matching so I would of got a solid deal on the Sammy but went with the 54" Pani G25 as it was the "known badass" of plasma's. I'm kind of stuck on what to exchange it for.... thoughts/insight?
I prefer the Panasonic plasmas and they historically are the most reliable brand. All mfg seem to be having issues lately with blinking lights and I doubt you could be so unlucky to get another defective unit.
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Old 09-04-2010, 11:05 AM   #162
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I was curious, when it comes to plasma TVs and capacitors, does the frequency on how often the tv is cycled irritate the caps? for example, I'll sit down to watch content for a couple hours and then turn off the TV, then turn it back on later when I want to watch again so it doesn't just run wasting power. I know for a fact this doesn't bother LCDs, it didn't even bother my old CRT tv. But when I first bought the panasonic, before it was repaired, this was my watching habbit with it and it eventually went pop. So I just wondered if the combination of not having it on a line conditioner and or short viewing periods contributed to the unit's defect, or has this defect be totally proven it's no ware connected to the viewing habits of the tv and strictly faulty parts alone.

I have like mentioned a few times before run it through a line conditioner, and I leave the tv on for longer periods now just so the number of times a day of heat up and cool down of components is less per day.

Just curious since this issue is random.
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Old 09-04-2010, 04:06 PM   #163
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ALL displays (including plasmas, CRTs, DLPs, AND LCDs) that are turned on/off frequently are being stressed more. The initial surge of power needed to start them CAN cause a premature failure. Doesn't mean it will cause failure, but it increases the chances of it. Just listen to the sound a CRT makes when you first turn it on.

They use to say that if you were going to go back into a room lit by fluorescent lights then you should just keep the light on because the extra power needed to restart the light equaled about 1 hour of the light being on. Most LCDs have fluorescent lights so it effects them also. Not sure about LED lights though.

Think about it. When does a light bulb usually go pop? It does it when you are just turn it on. They hardly even seem to just shut off and die while on.

If I am going to come back into the room within a 1/2 hour or so, I just leave the TV on.
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Klipsch RP-5 Pwred Towers (mains) (525 watts peak each 12"Subs)
All Klipsch RC-25(ctr),(2)SS1(surr),(2)SS1(rearSurr)
Toshiba (2)HD-A20,PS3,BD35
For SACD/DVD-A Samsung HD-841
Panny 50pz80u plasma
SETTINGS
RCA HD50LPW162 50"DLP w/HD2+
SA 3250HD
47" LCD+Yamaha5790+HD-A1(bedroom)
Harmony 680 + (2) 670s (amazing remote/support)
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Old 09-04-2010, 05:00 PM   #164
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ALL displays (including plasmas, CRTs, DLPs, AND LCDs) that are turned on/off frequently are being stressed more. The initial surge of power needed to start them CAN cause a premature failure. Doesn't mean it will cause failure, but it increases the chances of it. Just listen to the sound a CRT makes when you first turn it on.

They use to say that if you were going to go back into a room lit by fluorescent lights then you should just keep the light on because the extra power needed to restart the light equaled about 1 hour of the light being on. Most LCDs have fluorescent lights so it effects them also. Not sure about LED lights though.

Think about it. When does a light bulb usually go pop? It does it when you are just turn it on. They hardly even seem to just shut off and die while on.

If I am going to come back into the room within a 1/2 hour or so, I just leave the TV on.

I could always leave the tv on with a blank screen and just tell it not to shut down without a signal the lack of signal should also preserve power while in stand by too and being no signal on the screen i shouldn't get burn in. I was thinking of doing this if i go out i could leave the tv on but no should making people think i'm home etc.
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Old 09-07-2010, 02:06 AM   #165
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I prefer the Panasonic plasmas and they historically are the most reliable brand. All mfg seem to be having issues lately with blinking lights and I doubt you could be so unlucky to get another defective unit.
I ended up sticking with the G25 Pani.... and I'm glad I did. Thanks for the added re-assurance.
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