I have this TV that just developed this black bar today.
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Re: Panasonic th-42pz80u black vertical bar.
Ohh dear, as its fully black I would say the panel ribbon cable going to that part of the screen has come lose if reseating it does not work the panel has failed but doubt that as these are quite reliable.
Take the back off and reseat the address driver going to that section of the screen its on the bottom of the screen.Please Do Not PM My Page Asking For Help Badcaps Is The Place For Advise, Page Linked For Business Reasons Only. Anyone Doing So Will Be Banned Instantly !
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Re: Panasonic th-42pz80u black vertical bar.
I just did that. It didn't help. When I turn the tv on with the corresponding ribbon cable, the bar is not solid black any more but grayish with lines.Comment
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Re: Panasonic th-42pz80u black vertical bar.
This is what it looks like disconnected.Attached FilesComment
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Re: Panasonic th-42pz80u black vertical bar.
Clean the contacts with ipa and reseat it a few more times they are hard to get in perfectly.Please Do Not PM My Page Asking For Help Badcaps Is The Place For Advise, Page Linked For Business Reasons Only. Anyone Doing So Will Be Banned Instantly !
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Re: Panasonic th-42pz80u black vertical bar.
Bad Panel, you could try and swap the lower C buffer board but that looks like the address IC in the ribbon cable has failed due to heat.
I have had a couple of these and while they are a decent panel they are known for this sort of failure.Comment
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Re: Panasonic th-42pz80u black vertical bar.
What is ipa? Can I use alcohol?
Cleaning it with alcohol and reseating it a few times didn't help.
Should I even bother with trying a "new" c buffer board?Last edited by Malachi; 02-16-2016, 05:03 PM.Comment
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Re: Panasonic th-42pz80u black vertical bar.
Not worth a new buffer bad panel then a shame too
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Re: Panasonic th-42pz80u black vertical bar.
On last thing do the pins of the ribbon cable look corroded at all ?Please Do Not PM My Page Asking For Help Badcaps Is The Place For Advise, Page Linked For Business Reasons Only. Anyone Doing So Will Be Banned Instantly !
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Re: Panasonic th-42pz80u black vertical bar.
No, really clean. I just bought a new mainboard for it in January as I followed the trouble shooting in the service manual for the blinking led.
I narrowed it down to the a board. It ran for a month now this.
I'll list the parts on eBay, hopefully I can recoup what I spent on the board and new fans for it.
Thanks for the help.Comment
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Thanks for offering your assistance with this. I'm an electronics enthusiast with moderate level of competence (have a decent lab with two power supplies, microscope, DSO, hot air, good iron, can competently work at a component level on SMDs, design and solder own PCBs etc). I really enjoying fixing things and learning new stuff so took up a free 58" LED TV and have been googling and watching Youtube videos to see if I can fix this! I am happy to go down to individual component replacement/strip replacement etc - it's all in the name of learning.
The issues are as follows: the... -
Hey guys,
I had a previous thread about this TV here: https://www.badcaps.net/forum/showthread.php?t=79192
My problem was the top half of the TV had went out and the problem ended up being on the SU board.
That problem is now fixed and I am left with a different problem. There is a roughly 2" vertical black bar on the left side of the display and a single pixel wide red and green stripe on the right side of the display.
I have tried reseating the ribbon cables to the panel without any results. I do not think the TV had this problem before... -
Hello all. Only my second post.
I have a panasonic CF-20C5142VM which was booting to bios with no issues. I needed to add an ssd that was not initially being recognized by the bios. Found a link that suggested that I disable uefi mode and clear keys then to reboot to allow bios to now see New ssd. After restarting, screen is entirely black with no image. Found another post that suggested unplugging bios battery because some remnants of the bios may still exist in other parts of board but did not fix issue-screen is still black.
Anyone run across something like this before?... -
Hi
Asking for a friend.
I'm used to black vertical line in otherwise good image - probable solution is a rubber to push and tighten the COFs bonding.
but here its the opposite !
TV has new T-con = same issue
A missing panel voltage would have global effect
So , what should one do ? how can I find where the fault is ?
Thanks !... -
Hello,
I've acquired a 65" Panasonic TC-P65ST50 for free from someone while purchasing another TV for repair from them. I've repaired ~10 LCD TVs over the years with decent success, and I enjoy doing it. However this is my first attempt at a plasma, and I'm treading carefully.
The TV when I got it would power up, however the left ~5 inches of the display was entirely black, basically like a letterbox image would appear. I disassembled, looked up some info, and determined that it was likely either dirty/loose connectors between the panel and the C buffer boards...
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