Master thread for Panasonic plasma not turning on - Page 79 - AVS Forum | Home Theater Discussions And Reviews
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post #2341 of 2350 Old 01-08-2016, 03:31 PM
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Quote:
Originally Posted by whipit View Post
According to the manual I just posted the link to above it can be an A board or the P board.
Thanks for your response. I guess is my bad luck. Already replaced the P board (power supply) and nope,still the same so i guess is the A board (main board) and nobody seems to carry this particular board (TNPH1043UB)
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post #2342 of 2350 Old 01-08-2016, 05:49 PM
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Quote:
Originally Posted by gigas View Post
Thanks for your response. I guess is my bad luck. Already replaced the P board (power supply) and nope,still the same so i guess is the A board (main board) and nobody seems to carry this particular board (TNPH1043UB)
You may want to give this place a call and see if they can rebuild your A board.

http://www.tvrepairplus.com/
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post #2343 of 2350 Old 01-08-2016, 08:30 PM
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As a followup to my original post about my 60ST30 lockup issues, I found a Panasonic troubleshooting guide for the ST30 series which references the problem. Panasonic refers to this problem as "Solid Red LED Failure (Locked Mode)".

Following their flow chart, it appears that I have a bad SC board. I removed the rear cover, and followed the steps of removing certain connectors, powering on, and counting blinks. While the cover was off, I could really pinpoint the source of the buzzing on the SC board. It was one or more of the transistors on the left heatsink. When I tapped or aplied pressure to the heatsink, the buzzing would go away.

After applying the right pressure, the buzzing stopped, and now the TV appears to be working okay! But, I will probably replace the SC board to ensure a longer lasting fix. Although, maybe the FET's need to be resoldered or something, since tapping the heatsink makes such a difference.

Anybody have any experience with buzzing FET's/Heatsinks on the SC and/or SS boards?
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post #2344 of 2350 Old 01-09-2016, 11:54 AM
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Followup to the followup: The issue returned. So, I just ordered an SC board from shopjimmy.
After tightening the screws on the SC and SS boards, the buzzing from those boards has stopped completely. (SS buzzed a hair before, not nearly as badly as SC.)
But, I do notice a buzz/hum from the P sub-board that feeds SC. That leads me to further believe it's a bad SC causing my problem. (or possibly bad power to the SC.) If the P sub-board still buzzes after changing the SC, I'll order one of those, as well. Only $35.
Does this sound like a reasonable plan of action to those familiar with these Panasonic plasma issues.
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post #2345 of 2350 Old 01-10-2016, 07:32 AM
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Thumbs up Service Manual Panasonic TX-P54Z11E

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Originally Posted by whipit View Post
I don't think I said that right. What I meant was that that's the link for the Z1 manual and I also have a technical manual for another model. I happened to find the link for the tech manual that I offered to email you. It's for a UT/ST50 series but some of it may be useful. Sorry about any confusion, cheers.

http://s000.tinyupload.com/index.php...41883858340609

I think I found the correct documentation for my (2009) Panasonic TX-P54Z11E:

1. Technical Guide Panasonic TX-P54Z1(1E)



2. Service Manual Panasonic TX-P54Z11(E)

Question: How to check how many hours the Pana has been used while viewing (excluding time in stand-by mode)?

Cheers

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.
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PANASONIC VIERA TX-P54Z11E (September 2009)
PIONEER PDP-436PE (2005)

Last edited by m4v3r1ckNL; 01-10-2016 at 08:48 AM. Reason: added picture & links
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post #2346 of 2350 Old 01-10-2016, 09:26 AM
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10 blinks..where do I start troubleshooting ?

TC-P65S2. Side hdmi fix does not work. How to test boards? From what I've read it's one of the two, but everyone says change one, then the other if necessary . That's too much $$. Help!
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post #2347 of 2350 Old 01-10-2016, 07:54 PM
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I have a P50GT50 that stopped working. When I power it on, the Smart Viera logo displays and then nothing else. Nothing from any of the ports, no menus, nothing. It has a solid red light (no flashing). I have unplugged the tv for several days and still the same thing. Any ideas?
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post #2348 of 2350 Old 01-11-2016, 04:28 AM
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Quote:
Originally Posted by m4v3r1ckNL View Post
I think I found the correct documentation for my (2009) Panasonic TX-P54Z11E:



Question: How to check how many hours the Pana has been used while viewing (excluding time in stand-by mode)?

Cheers
Access to the service mode is outlined in section 5 of your linked Z11 manual.
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post #2349 of 2350 Old 01-11-2016, 05:14 AM
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Quote:
Originally Posted by whipit View Post
Access to the service mode is outlined in section 5 of your linked Z11 manual.
Thanks for your directions, found it!



Additional information: on 14-01 my TX-P54Z11E will be send to the Panasonic repair service here in The Netherlands, then awaiting their quotation for the repair/replacement of the SC board (and/or whatever boards they will find failing). Keep you posted.

Cheers

.
.
.

PANASONIC VIERA TX-P54Z11E (September 2009)
PIONEER PDP-436PE (2005)
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post #2350 of 2350 Old 01-18-2016, 12:38 PM
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Have a TC-P55GT30 that upon startup (sometimes), has some weird color distortion on about the top third of the picture for 5-10 seconds, then it suddenly goes away and everything is fine thereafter. Could this be a sign that one of the boards is starting to go bad?

J Doug
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