I was hoping someone here could help me.
I have a Panasonic TH-42PX75U plasma with the 10 blinking light issue.
First let me preface the issue:
I had the first problem with this plasma the week before last Christmas (2011) and the TV refused to power on, no red LED whatsoever. I researched the problem and found it was the power board. I bought a "fix-it" kit on eBay in January 2012 and that seemed to fix the problem, we then started a remodel and the TV sat for about 8 months until September 2012. I went to power on the TV and it booted up normally, then after 20 minutes, it shut down as before and wouldn't turn on. I checked the fuses and sure enough there were both blown on the power supply. So instead of diagnosing the power board further, I ordered a replacement board from TriStateModule (http://www.tristatemodule.com/p-4463-txnp1hntus-panasonic-tv-module-p-power-supply-tnpa4221ab-tnpa4221ak-th-42px75u-th-42pc77u.aspx
). I installed the new power board on September 17th and the TV worked like a charm!
Fast forward to Thanksgiving day, I go to turn on the TV and it boots up, then within 3-5 seconds I see the TV form a red snowy haze and immediately power off and a 10 blink red led code is now flashing. I looked up this code in the service manual and it says it's a problem with the A-board.
I am so frustrated with this new problem, being I don't know if it's exactly the A-board. I've been researching and reading tons of problems like mine and some say it could be the power board again, even though the TV is powering on. So I called TriStateModule and they're replacing the board, since it comes with a 6 month warranty. I figure I'd start there and see if that fixes the problem, but who's to say it won't happen again in 2-3-6 months down the road. When the replacement power board comes and that doesn't fix the issue, I guess I'll be back to square one.
I ran across this post through my research: http://www.justanswer.com/tv-repair/36rvn-panasonic-th-42px75u-told-needed-new.html
However, I don't know where to begin. What trial and error fixes should I start with?
Does anyone have any idea how to fix this issue? Any tips or tricks? I'm shipping the board out tomorrow and I can try to diagnose this until then.
I called Panasonic and they told me I'd have to get the TV diagnosed and get an estimate to send to them, then they "MIGHT" help me pay for some of the repairs. Well the problem is the diagnosis from my local TV repair man is $98, then that would be applied to the cost of the repair. I do not feel like spending another $100 on top of the $100 I already paid for the power board.
I don't want to scrap this TV, but I just can't get over the fact it's only 5 years old and already failing at this rate. I have a 2005 and 2006 Panasonic plasma and they're both going strong, no problems at all (knock on wood). I also have a 2011 Panansonic Plasma I purchased last fall (before the 2007 model started having problems), but I got it with the 5 year warranty from Costco.
I've always bought Panasonic plasmas because they've had an ironclad reputation, but these problems with the 2007 model have really started to change my mind.
Any help would be greatly appreciated with this matter.
Thanks-Edited by MVLJR - 11/26/12 at 3:58pm