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
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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=LjpGKaBt8hgPlease do not PM me with questions! Questions via PM will not be answered. Post on the forums instead!
For service manual, schematic, boardview (board view), datasheet, cad - use our search. -
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.Comment
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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.Comment
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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+plasmaComment
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Re: Panasonic TH-46PZ80U no picture
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.Comment
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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)Comment
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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.Comment
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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.
Last edited by Caleb; 10-04-2013, 09:45 AM.Liberating magic smoke one part at a timeComment
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Hello!
I recently got an old VHS player from Panasonic and just for fun I want to try to repair this device. It is an AG-1000B portable VHS player from 1990 and it has a problem with picture quality in playback mode.
Picture in playback mode is very noisy and often loses sync but the still images are nearly perfect.
I want to know, is this something that could be solved by recapping or is the video head likely gone?
Also, what mechanism is this?
Any feedback is appreciated!...05-06-2024, 07:16 AM -
Hi all
While I have quite a decent background in electrical & electronic troubleshooting & repairs, this is my first time stripping down an LCD TV for repair.... I have inherited a 3yr old Panasonic LCD which has a picture, but it is quite dark (too dark to be watchable - but still quite easy to see; I didnt need a torch to see it).
I started by checking and trying to adjust all of the picture and backlighting levels, but that made little to no difference. I also did a factory reset.
From there I envisaged that the backlighting wasn't working, however... -
Hi guys! I realized you have a lot of knowledge here so i am hoping you could point me in right direction with my odd issue.
The Tv is a Philips 58PUS8545/12, it had no picture but working backlights.
Original T-con:
Opened the Tv and tested to unplug one ribbon cable at a time. With this test i could see that i got fine picture on both halves as long as there was only one ribbon cable connected, with two connected picture were gone.
First replacement T-con:
I thought it might be t-con and ordered new t-con from china(supposedly tested)... -
This was my main TV for the last 6 years. I'm not inclined to throw out a $2600 TV so quickly so I'm trying to investigate the issue.
Problem
TV was disconnected from power for 6 months during construction. When I plugged it yesterday picture was fine, after 30 seconds it dimmed then started developing horizontal lines, picture then starts to ghost vertically until it degrades into vertical streaks. TV always displays a perfect picture when cold. I can unplug TV for 5 minutes and plug it back in and picture is restored for 20 seconds. I can also keep it in standby mode... -
Hi everyone,
I've got this Panasonic TV here with the following symptoms:
* Standby Light is solid RED
* Turning on using the Button on the TV (long press) would change LED to blinking GREEN
* After a couple of seconds, LED is solid GREEN and without picture or sound.
I've tried a couple of things before tearing it apart:
* Resetting using various combinations of powerbutton and volume buttons pressing down while booting.
* Activating Self Check according to service manual using IR Blaster (we have no remote unfortunately)...
Comment