Master thread for Panasonic plasma not turning on - Page 58

How do I do that?
My P board fires up for about less than 2 seconds with the 10 blinks on the LED and then I lose all Voltage outgoing from P board.

TC P42c2 is the model.

I have the Service manual but I am still stuck at is it P/SC/SS or A board.

FKFKFKFKFKFKFKFKFKFKF
7 blinks

I have the 65s2 and 50(?) 1yr old.
My 65 has been down for 6wks now and I work away from home 6 days a week so it would be like having this tv for 6mths instead of 27mnths.
The 50 is buzzing very loud more and more now and it is one year old.
I cannot say that I will want another Panny but what is more reliable???
I understand if I had 3 kids and there friends here everyday for the last 27mnths but this is unexceptable and Panny knows it according to all of you.
Who is a better company??I think this new boards will just do it again.

Anybody? I am not sure what I need to do..

Hey Gang,

I picked up a discarded Panny Today that I'm trying to fix and happily came across this forum:

My TV: 42 inch Plasma th-42px75u

Diagnosis: 7 blinks, Top half of the screen fuzz, Initially would only turn on for an instant and immediately power off. Found out the TOP SU board is to blame for top half fuzz. Took it out, cleaned it, and was able to watch tv on the bottom half for a while, then it powered off again. Cannot get it on for more than a moment before 7 blinks again. I'm hoping the power is not fried as well so I disconnected the SU boards and powered on, and it stays on solid red light. Im hoping that this is a signal that the Bad top SU board is signalling to power off the entire unit.

Anyways, I made a video about it, if you would check it out and if you think it ONLY needs the top SU board let me know, or let me know if you think it needs the power as well.

Thanks for your time

The video is here:

According to this document, page 14, it appears your SU board is bad.

THANK YOU!!! The A Board was the fix! Now I have to figure out if I need to reinstall the software or what b/c I am seeing a Factor, ADC-ADJ, ADJUST, etc screen that I can seem to get past ..... any advice?

THANK YOU!!! The A Board was the fix! Now I have to figure out if I need to reinstall the software or what b/c I am seeing a Factor, ADC-ADJ, ADJUST, etc screen that I can seem to get past ..... any advice? - I think I figured out how to make that menu go away - we'll see if it returns.

There is a 3-line/red "CHK" and "DG:xxx" and "CATS:xxx" item on the right of the screen that won't go away. What is this?
Edited by Nathaniel Lee - 3/22/13 at 1:44pm

All right, so to recap my situation:

I turn on the tv, and there is NO noticeable brightening of the screen. The LED doesn't blink at all. If I hold down the power button, it will blink 14 times, then repeat. I have the repair manual, and I've taken the back off the tv, but it looks like the flow chart is telling me to check the LED on the SC board (something along those lines, don't have the manual with me right now), and I can't find that. Any help is, as always, a lifesaver and greatly appreciated.

Probably should also have mentioned that it's a tc-p50s30 viera, and sadly it was bought used without a warranty (before I knew how common all this panasonic nonsense is). This whole situation has made me a little leery of panasonic tvs in the future, though I absolutely loved mine when it was working. I'm wondering now (if I end up not being able to repair this) what other brand is out there that's fairly affordable/reliable. I'd ask that question here, but I don't want to threadjack.

Although the service manual mentions a SC-board LED, I don't think your model has that LED.

Update: I unplugged the unit, and disconnected the cable between the power board and the SC board. When I powered the tv up again, I got the 7 blinking lights. I then unplugged the unit, reconnected the SC board, and disconnected the SS board from the power board. When I powered the tv up again, I got a straight led, no blinking. I feel like a total moron. What is this telling me about dead boards?

i just want to say thank you to seanpkeown and aperry to sean for his knowledge and pics and aperry for posting that he just took out the old transistor i had the same bad one as sean im ordering new part so i can replace the old one thanks again i know this posts where old but helpful thanks again

tomwil got any ideas?

How do I test the individual boards with the volt meter?

Just wanted to add my experience and post my recommendations here. I've been following this thread for well over a year. I first got the 10 blinking red light code when trying to turn on the TV almost two years ago. It would come and go, unplugging HDMI, unplugging power cord, etc, would sometimes make it come back to life. Eventually it stopped working completely, and I came here and found this thread. I did the air canister trick on the MC201 and MC301 IC chips and the TV would work. But after turning it off and trying to power it back on I would again get the 10 blink error code. I finally PM'ed stephensank based on his posts in this thread (and after realizing I did not have the soldering skills necessary for the IC replacements), and he offered his services to replace the both capacitors on the MC201 and MC301 chips on the power board for a very reasonable fee. I shipped him the power board and he replaced the two capacitors on both the MC201 and MC301 boards, just like he recommended. He DID NOT have to replace the actual IC chips. Once I got the the power board back (his turnaround was less than a week) and installed it PROPERLY*, the TV is now working 100%. (*note that when i first tried hooking it back up, I missed snapping one of the cords fully into the power board and still was getting the 10-blink error code). Just wanted to add my two cents and experience. Can't believe after all this time that a simple replacement of those capacitors fixed my issues 100%. I'm a very happy camper, and want to give HUGE props to stephensank for all his help. Highly recommend contacting him. Love this forum and all the amazing resources this place provides.

-Mark

Just to clarify, my model is the "Panasonic Viera TH-46PZ85U".

I bought this set from Costco. 55ut50 Unfortunately an hour after purchase it went DOA. A 10" red vertical stripe down the entire length of the screen. A Panasonic repair guy came and replaced the C3 board & the A board. No help. Panasonic has been no further help. Passing the buck at every turn. "Well you should speak to Costco if you want a replacement. We dont swap TV's" etc. Calls routed to Jamaica.
We can get back to you in 3 - 5 days. Fun times.

Costco is now picking up the set for a refund. Its too bad because Panasonic plasmas are great but their customer support is attrocious forcing customers to jump through hoops with no end. As much as I love the pq of their sets - I refuse to support or buy products from this POS company again. End of rant.
Edited by steevo123 - 3/29/13 at 11:09am

How was it transported home? Was it laid on it's side? Just curious. If it was bought by their delivery I would bring them into it as they could have damaged it in transit.

Could have been delivery. Either way - they treat you like crap to fix these things. A new set DOA should be replaced. No questions asked. Immediatly if they want to keep any repuatation.

fyi - the repair man put it on its side to fix it. I was like "whoaaa, dont do that" He told me he knew what he was doing. Yeah. Right.

Panasonic TC-P58V10
Symptoms: Upon power on, red LED power light is steady with no blinks; screen lights up then dims; no picture, no sound.
Fix: New "A" Board (the one with the connection ports).
Comments: After installing the new board, had to re-enter "custom" picture settings.
Further comment: Replacement board from Panasonic was obviously used and HDMI port 1 works intermittently. Lucky me.

I have spent hours reviewing all the replies on this post. Thank you all for your Contributions. Purchased my TH-58pe75u from Costco in 2007 and around a year and a half ago I powered the Plasma off and then back on and it stopped working. I have an error which blinks 6 times, pauses then blinks 7 times over and over. I know one source of the issue could be the SC board. I have removed sc2 and sc20 and power it back on and no error code will blink.

My concern is that if I order a new SC board that 1) It may not be just the SC board that has issues and 2) I read that it may be a firmware issue and have issues at a later date if it does fix the issue. What other trouble shooting would you recommend to narrow things down and how to I update the firmware? I have not been able to locate any information about the firmware in this model.

As a side note... I have also read that Panasonic has been doing some free warranty coverage on out of warranty products with similar issues. Does anyone think that I may have any luck with them covering this model with those error codes?

Any Assistance you can provide would be fantastic. I used to love the color tone and softness of this Plasma compared to the newer LED's out there these days. They just seem to "real" for my viewing pleasure if that makes sense.

Hello Adam can you help to tell me how to do that? Thanks so much.

I own a G15 which has been running for 4 years.

I recently purchased a VT50 65 from best buy. The TV after 17 days of service turned off automatically yesterday during normal tv watching and it was raining outside with storms and lightening. I do own a monster surge protector.

The led power button doesnt seem to glow red.

When i spoke with geek squad, they said that a technician will drop by with the parts after 2-3 days and do the repair.

Should i force bestbuy to replace the tv with an another new one - i will be taking to the manager today anyway or should i wait until the repair. I have the priemer silver status so i get the 2 months return policy.

Just worried that VT50 got fried.

I have an update to share. I received my new SC board and decided to follow the "Proper" troubleshooting tests and disconnect the SU and SD boards to isolate which component was having the issue.

1. When both boards were disconnected there was no Blinking Lights. This led me to believe that the SC board was not an issue.

2. I connected the SU board to the SC Board and powered up and the lights blinked 7 times.

3. I disconnected the SU board and plugged in only the SD board to the SC Board. Powered it up and the bottom half of the TV lit up with no blinking lights! This makes me think that it is the SU board with the issue, so I ordered one and am waiting for it to arrive to test.

I will keep you updated. It bothers me that my laziness to properly troubleshoot the issue had caused me to purchase a SC board for no reason. I will keep it as a backup just in case I have issues in the future.

I got a new UT50 as a loaner TV while my 3 month old 55ST50 is in the shop awaiting a new "A" board that is backordered 1 month. Yesterday, the UT50 turned itself off and will not turn back on. The LED light flashes 7 times. My ST50 lasted less than 3 months, and this UT50 lasted less than 2 weeks. Panasonic sucks, imo. I will call the service center tomorrow and tell them how much I admire Panasonic.

I've got a Panasonic TC-P58S2, manufactured Oct 2010, purchased on Black Friday 2010.  It's been working fine until yesterday when it turned off abruptly (while watching it) with a 'pop' (but no typical burnt electronics smell) and then was completely dead (it had been on an hour or so).  It has no flashing lights, does not respond to the power button, etc., just dead.  I searched the internet and came upon this forum and all of its great resources, and through it found the schematic diagrams and trouble-shooting guides, but haven't found anyone reporting the same problem.  In my attempt to troubleshoot it, I could not find any obvious blown components, no dark/discolored areas, etc, but I did find the F501 fuse blown, which is on the 'hot' side of the power supply board, but it's not one of the primary fuses on the Mains.  So quick and dirty attempt to make more progress, I jumped around that blown fuse (2A/250V) with what I had handy, a 5A/250V.  My thinking was if it was some kind of direct short, it would take out the new fuse too.  Well, in retrospect, not a smart move as when I plugged it back in I had about 5 seconds of "progress" (some click of relays was heard) then a white square box lit up and everything went dead again.  The white box was 'RF601' a "THERMAL CUTOFF WITH RESISTOR," apparently another flavor of fuse downstream from the F501 fuse (which didn't blow this time -- the current draw was apparently something less than my 5A temp fuse).  So now I have at least 2 problems on the 'P' board:  the original F501 fuse, and now this blown RF601 thermal device.

 

So my question to all the great experts here, is it likely the original problem is somewhere on the P board, and if I just buy a replacement P board I'll be good to go? (And I don't mind doing that as it's only $80 and looks easy to replace.)  Or is it just as likely the real root cause is some other board drawing too much current from the P board causing the original fuse (and now the thermal device) to go?  What I'd like to avoid of course is buy a new P board and have it blow the same fuse as soon as I install it.

 

Anyone hear/seen this problem before and advice on how to proceed?

 

Thx!

As someone who repairs a lot of TVs, Panasonic have about half the failure rate as Samsung (with plasmas), despite selling more plasmas than Samsung. They are also better built and engineered than Samsung, less cost cutting.

My 1 year and 2 month old TC-P55GT30 just decided to turn itself off forever the other day, leaving me with the power LED blinking 7 times. Luckily it's covered by the Best Buy protection plan.

It was diagnosed by the tech as an SC board failure and currently awaiting parts to arrive. Is there anything I need to ask them to do before or after replacing it? Such as copying existing settings or recalibration after installation?

I have not had any special calibration done, so resetting to proper factory settings is fine. I just don't want to make sure everything is done right.

Installed the new SU board and everything fired up just fine. The TV Worked for a day and then turned off with 7 blinking lights again. Maybe it is the two Caps people are talking about? They could not be regulating the voltage properly and damaging parts. I felt I was so close...

Panasonic TC-P50G10
Purchased 11/2009, manufactured 9/2009

After a power surge (possibly unrelated), the television would turn on but not display anything. The read light was steady. I took it to a repair shop and was told it's a problem with the logic board overheating and will need to be replaced at a cost of nearly $500 parts and labor.

It was a reliable TV until now with sharp picture, but I'm a little wary of dropping that much money on a 3+ year old TV. Does that repair cost sound reasonable and, more importantly, do you think there's enough life left in the TV to merit the repair?

Definitely not worth $500 to fix at this point, but if you are so inclined, you could identify the part number and see how cheaply you can get it online.

It takes a bit of bravery to open the set yourself and replace the part, but it's already broken so you really have nothing to lose. Depends on how much the part is though.

- Voy