Panasonic TH-46PZ80U no picture

[dcc905]

I have a Panasonic TH-46PZ80U. It has no picture or sound. I turn it on hear a couple of clicks then I get 2 red blinks on the led. I have repaired my VIZIO plasma it was a piece of cake. This one has me stumped. There are no noticeable blown caps. I also can't find any that are bad. A few are slightly bulged but only slightly and they test fine. Any help would be great. Thanks

[tom66]

Re: Panasonic TH-46PZ80U no picture

Panasonic use high quality electolytic caps; very rare failures. You probably have the infamous "MC201"/"MC301" failure. See this video. http://www.youtube.com/watch?v=LjpGKaBt8hg

[dcc905]

Re: Panasonic TH-46PZ80U no picture

wow, that is a great video. thank you for posting it, i tried the test that is on the video and that is what's wrong with my tv. now just got to find the parts.

[bluto]

Re: Panasonic TH-46PZ80U no picture

When did you get your TV? My folks have a TH-46PZ85U that arrived in January 2009. No problems yet but according to that video it is one of the models affected.

[Sevenqi]

Re: Panasonic TH-46PZ80U no picture

I fixed the same problem , I only replced the bad cap, this may help you:
https://www.badcaps.net/forum/showth...nasonic+plasma

[LetsDoIt]

Re: Panasonic TH-46PZ80U no picture

Panasonic use high quality electolytic caps; very rare failures. You probably have the infamous "MC201"/"MC301" failure. See this video. http://www.youtube.com/watch?v=LjpGKaBt8hg

I watched this video and he doesn't say anything really about the 2 blinks. My tv passes the 15v test but then gives me the two blinking lights when i try to power it on. Do you still think this is the MC201 or MC301 problem and maybe the chip that does the 15v test is working but the other one isnt?

I prob should have done the cold test to check but I have yet to acquire some air duster.

[LetsDoIt]

Re: Panasonic TH-46PZ80U no picture

Ohh and I never had the 10 blinks before hand ( I think you know this by me saying it passes the 15v test however)

[WillTank]

Re: Panasonic TH-46PZ80U no picture

Ok, I have TH-46PZ80U and I had 10 blinks. I called tech support. These instructions worked for me: disconnect all HDMI cable (s), plug the power source directly into the wall bypassing the surge protector. Then, turn on the tv. It worked for me. Hopefully, this helped someone.

[Caleb]

Re: Panasonic TH-46PZ80U no picture

I just fixed a similar model yesterday and another last week, both were caused by the 2 bad caps. Just open it up and freeze it beforehand so you know for sure.