Problem with Panasonic PT-43LC14: Yellow tint covering most of screen. Convergence ok - Page 3

Just wanted to let everyone know this worked 100% with the filter from anchor optics. I just cut the filter to size and put everything back and now my TV looks just like the day i bought it. GOOD BYE YELLOW TINT!!! Thanks so much to everyone who posted on this thread.

Rivlez; How did you apply the filter to the glass lens?

Nobody seems to want to answer this question

Where can I download the service manual for free. Can somebody post the link. Thank you.

http://www.nodevice.com/manual/newma.../get26686.html

HI all...
I have torn this thing down 14 times and now its easy...
if anyone has any questions I can help.
Please Dont email me just post here and so everyone will benifit ...
or start a new thred if its not a polorizor issue.
Cheers!~
oh....
and I DONT WANT MONEY ...
just repaying my debt to this group for without I would have never did it!

I used only PANASONIC parts no 3rd party tint.

Wow, practice makes perfect, eh?

Could you post where you got the parts from (if you haven't already, I forget it's been so long since I last read this thread).
Thanks!

http://www.pasc.panasonic.com/epartr...asp?validate=1

PT-50LC13 is my model #

if you have other errors I have replacement boards and parts also... alot cheeper.
Cheers!

I've been following this thread and others have the same problem with the blue polarizer. I bought the 2x2 vermilion filter from Anchor Optics got the service manuals downloaded and Im ready to go but I cant find the last piece of this puzzle how is this lens replacement attached and held in place? I don't want to get this thing opened up and apart and not be able to keep it in place.

All the posts I have seen say this resolves the problem this one question about attaching the filter from Anchor is never answered. I have seen the suggestion of super glue but I would like to hear from some one that has actually done this repair successfully.

I can build a computer but I have never taken on a TV so I want to be prepared for this project.

How do you apply the filter from Anchor Optics to the glass lens?

Is anyone still watching/reading this thread?
I just replaced the polarized as outline in the thread on my PT-50LC14 and now everything that should be white is yellow.
Yes I am sure I replaced the correct one as it was the only one with a burn mark and was where the service manual showed the blue filter.
Did I install the new filter in backwards, is it the incorrect color?

Ok, I just did this fix and it works like a charm. I went with the anchor optics filter and decided to forgo scraping the glass and gluing it on and just cut the filter to size (the whole original piece of glass) and stick it in the holder. Anchor Optics shows the filter to be able to cut UV wavelengths 280-380nm. Besides, I think the second piece of glass is the actual UV filter. So anyways, how has this filter held up for those of you that have used the Anchor Optics filter? I know that you may not have done what I have and glued it, but either way is it still holding up?

Right on brother this is exactly the last piece of the puzzle that I had been looking for i'm going to try this in the morning I was not sure about the crazy glue on the lens suggestion and this secret seems to be more guarded then the gold in Fort Knox. I waited long time for this answer. Considering that this seems to be a common problem and obviously a design flaw on Panasonic's part is the why has there not been a demand by people like us that paid a lot of $$$$$ for this TV to get Panasonic to address this issue or at least spring for the cost of the replacement part. The internet is a powerful consumer tool if used properly.

Well, I've run the television through the paces - 10 hours a day for two days and it seems to be holding up fine. Yovinny, I would suggest to wear nitrile/vinyl gloves and clean the filter really well with alcohol before you put it back in... you don't want oil from your skin to ruin the filter... Don't forgot to take off the protective film either! I still would like to hear from others that have used this longer. I still have enough material to fix it another 6 or 7 times, but I hope I don't have to. Let me know how it goes.

the_int21h:
A couple of questions: Did you remove the original lens and replace it with the new one, or just place it in the holder with the old one?
What was the part number for that particular filter? I had it written down but can't find it, and there's a lot of pages to search through again, so if it's no trouble for you...?

EDIT: Found the page, but what color was it?

Ok, when I took out the filter, there were two pieces of glass - one clear (the UV filter I guess) and the other one burnt and kind of yellow (the blue polarizer). I took the vermilion filter and held it up to the light with the original filter and turned it to figure out what the orientation of the replacement should be. When twisting it, you should see blue through the filters and not magenta. I then took the burnt glass out and laid it on the vermilion filter with the protective film still on it and lightly traced it out with a pencil - making sure to keep the orientation right. I cut the new filter just inside the lines I just drew, made sure it would fit in the holder, removed the protective film, cleaned it well with alcohol, and put it back in the holder and reassembled the television. Like I said before, be sure to use gloves. If they're powdered, put them on and clean them well with alcohol and then go about working on the light engine and filter. That's about it really, but if you have any other questions, please ask.

That's pretty much the step-by-step I needed. Thank you.

Now to make sure I can order the filter in Canada from Anchor...
It was the 2" x 2" 2-pack, right?

Yup. More than enough to do it several times. I would suggest to keep the old filter just in case - I've got it in the envelope with the left over film taped inside the front cover of the tv. Plus, if you have to do it again, you can make the filter ahead of time. Good luck!

Out of curiosity, yovinny, how'd you make out? Did it work for you?

I followed various links and downloaded the manual. Decided to go with the Anchor optics film. Here is the bottom line from me.

First time I took the TV apart, it took a philips screwdriver (actually I used a battery powered on), a vacuum, and canned air. I found lots of dust in the optics, so I completely opened up the optics and cleaned the first two lens and blew the small bits of dust out the rest the lens/mirror area. Just a note, if you don't want to disconnect the 3 ribbon cables from the LCD device, you can take out the LCD device and the circuit board as one piece, disconnect the two little white plugs and remove the 4 screws holding the circuit board and the 4 screws holding the LCD unit in.

I found the "Blue filter" charred as shown in other posts. So I clean it up a bit and put the whole thing back together.

After I received my "film" from Anchor optics, I took my TV apart again.

The Film is not a film. It is a piece of colored plastic, and does not need to be glued. Just cut it to the correct size and pull out the old filter and put in the new piece. Don't forget to pull off the protective plastic off of each side of the filter.

End result - My TV is much brighter and the blue is very vivid. Overall, this a better than the blotchy yellow that I had before. Maybe some day I will spend the money and get the correct part, but for the cost, approximately $20 and my own time, I am happy.

Time and confidence and $20 was all it took. To all, this is the route I would go and not just order the real part until you have proven to yourself that you can get the TV pulled apart and put back together and it still works.

Good luck!

I have the PT-43LC14, just boguht it yesterday for 200$, probably overpayed but I needed something with VGA input because I use it as a computer screen, yesterday it was fine, today i turned it on and it was dark and seems to have a pinkish redish tint, but im not sure if its a color filter or just the bulb, because i went into service mode and it said total bulb time 3800 hours, and in the picture settings, picture had to be all the way up with brightness 80% up and gamma on high to have a good picture, so id assume maybe the bulb was getting dim? and today it just ghave out. Im going to post a pic of the picture ..

PLEASE HELP

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New update in my issue, everything thats green is dark or black, nothing green is showing up at all. Any ideahs? if its the color filter, how do i get to it? i have the front dissassembled where the projection unit and the lamp are, and BTW the light i can see from the projection unit is purple and it used to be a pure color. Any advice would be great!

Appears that one of your LCD panels is not working. Resolution could be as simple as a cable reseat. Or, a bad connection from your PC.

Does this strange color shift happen on another input such as a tuner or DVD player?

I to have a Panasonic PT50LC14 that has that yellow film across the left hand side of the screen. Luckily, I stumbled across this web site and I am now waiting for the blue polarized film to come. Thank U everyone for your info and step by step instructions. I also downloaded the manual so hopefully we are able to take this thing apart, fix it, and put it back together. If anyone has any words of incouragement please don't hesitate to comment. I would appreciate all the help I can get!!! Thanks Again

Well, if it helps, I took my TV apart to see if I could, even though I haven't fixed the piece yet. I got it together again and it works, so it can be done.
But I strongly recommend that you either take pics for reference as you take it apart or label the piles of screws that you will remove.
There are a lot, and it can become daunting once you try to put it all back together again and then try to remember which screws went where.

Take your time, slowly remove parts in case they're attached in places you don't immediately see and you should be fine.

And post when you're done so we know how it went!
Good luck!

Thanks so much ShilohG for your words of encouragement and your much needed advice. Will do exactly as u have suggested and get back to u when we are done. Do u think we should go ahead and clean the inside out first or wait till we recieve the part before beginning? Thanks so much for your help!!

I'd just do it all at once when the part arrives. You're memory's fresher if you do it in one go.

I would like to try to see if this resolves my issue on my pt43lc14, with all the resources here its too bad nobody has the correct dimentions of the cut. If only we could get someone on this board to have these pieces of film die cut to exact size and sell these amonst board members. I have removed my projector and am at the stage of tear down of projector. I think I should wait for film before I start. Anyone got a piece they could mail me.

I just got down into the inner workings of the projector, had bit of tough time removing the air filter, once that was done it was a snap. I only removed the screws to the cba board and didn't disconnect the whole part just moved it to the side so I could access the blue polarizer. I removed it and it was so burnt I that I cant believe I had a picture at all.

[IMG]http://picasaweb.google.com/lh/photo...eat=directlink[/IMG]

Is there any suggestions on removing the vermillion layer on this polarizer, I heard goo gone but any other suggestions would be fine. I dont want to damage the optic material that the vermillion polarizer layer lays on.