Slight Geometry Problem with Panny 53WX42...

Discussion in 'Archived Threads 2001-2004' started by Matt Stone, Oct 8, 2002.

  1. Matt Stone

    Matt Stone Lead Actor

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    My Panny was delivered last Wednesday, and I've been sitting around enjoying it since then...but today when I was playing the doc on the Halloween DVD, I noticed a little geometry error in the bottom left corner. I'll try to demostrate:

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    As you can see it curves a little outward at the bottom. It's hard for me to tell whether this carries through the whole bottom, or if it is just on the left side. It is the most noticable when I put the TV in 4x3 mode.

    If this is just a normal geometry problem, and something that I've got to live with, that is fine...and I can live with it, but is it something that I should be concerned with?

    Thanks...
     
  2. Robb_JR

    Robb_JR Auditioning

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    Yeah I've had mine about a month and in 2.35:1 aspect ratio movies, the top bar bows downward in the middle and is very annoying. Not sure if I should make a warranty call or not.
    Using your good idea to demonstrate, it looks like this:
    I'd say it dips, maybe 1/4 to 1/2 inch.

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    Lastly, watching movies in the 2.35:1 aspect ratio, there is this "clear line", (even sometimes colored near the upper left corner), running the whole length of the screen right below the top bar, and right above the bottom bar. Normal?

    Not to handy with TV's, I've done both menu convergences to the best of my ability, and that's it.
     
  3. Matt Stone

    Matt Stone Lead Actor

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    Luckily I haven't noticed a problem like that, otherwise I would probably flip. My problem still isn't big enough for me to return the TV, but I would like to know if it's just a normal run-of-the-mill geometry error, or if it's something I should be worried about.
     
  4. Michael TLV

    Michael TLV THX Video Instructor/Calibrator

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    Greetings

    Sounds like run of the mill stuff ... nothing a service level convergence could not fix up.

    Regards
     
  5. Robb_JR

    Robb_JR Auditioning

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    Is this something an ISF Calibrationist could fix up also?
    I's love to have this set done. Anyone know any in the Central NY. Syracuse/Albany area? I can't find one anywhere.
     
  6. Robb_JR

    Robb_JR Auditioning

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    Well, I called Panasonic about the problem and they sent a service guy over. He came from one of the bigger and more popular repair centers around. He saw the problem and did agree it wasn't a TV problem. Needed a little tweaking. He proceeded to go into the service menu and fumble around for 20 minutes, I could tell he wasn't to comfortable with what he was doing. I even heard a few quiet "whoa, I better not do thats" under his breath. yikes.

    When he was done I still saw the problem, he said it was much better, but it wasn't. And at that point I just agreed with him to get him to stop playing with my set. So the problem still remains.

    I asked him if he ever heard of ISF calibrations. He said "yes". I asked if any one near me did them. He said no, and not to waste my time. He said they were a total waste of time, and a big home theater money maker right now.
    He said I'd lose the settings within a couple months and that the human eye wouldn't be able to tell the difference in the adjustments anyway.

    I almost wanted to point him to this forum for some training, but I didn't.
    From what I read here, I have to beleive they are worth it.
    oh well, if the TV isn't broken I guess I'll live with it. Don't want anymore local servicemen....
     
  7. Ming Wang

    Ming Wang Agent

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    Robb, your problem should be solved fairly easily through 64-point geometry and convergence. you can't do it through user menu convergence because it doesn't do geometry (i.e., can't move green light).
    go to panny.tv and download the service menual, follow instruction in it... it's not hard, just need "waste" a little time [​IMG]
     
  8. Matt Stone

    Matt Stone Lead Actor

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    Ming,
    I was going to do the 64 pt convergence myself...but before I dl the Service Menu from panny.tv, I was wondering...is the stuff on that side for the WX49 series, or the WX42 series? I don't want to go tweaking unless I'm sure it's for the right TV.
     
  9. Josh Lowe

    Josh Lowe Screenwriter

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  10. Matt Stone

    Matt Stone Lead Actor

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  11. Ming Wang

    Ming Wang Agent

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    The service manual you can download at panny.tv is for wx49 I believe. however, at least for the convergence part, I think it's 100% same for wx42. I followed it and did it on my 53wx42 without any problem.

    however, for wx42 the other values (brightness etc.) are not same as people listed on the site for wx49.
     
  12. Robb_JR

    Robb_JR Auditioning

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    I Emailed Gregg to come out and do my set about a month ago. But I'm kinda in the same boat as Matt, just can't do it right now. It would have been about 3 hours both way travel time and I just don't have $600-700+ dollars for it. Hopefully some time next year. Definitly if he comes through this way and the travel costs get lowered. I'd LOVE to see what he could do to this set. Dang....

    Anyway, maybe I will try the 64 point convergence some Saturday. I asked about this problem over at the Panny board and they said the same thing. Do some of the tweaking myself. Even though I can't touch what an ISF guy could do. Thanks for the responses guys.
     
  13. Josh Lowe

    Josh Lowe Screenwriter

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    It's definitely not cheap, but it's absolutely worth it.

    Do the E-focus and if you're comfortable the M-focus and then the 64 point convergence..

     
  14. Matt Stone

    Matt Stone Lead Actor

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    Why exactly are the E-focus and M-focus. I have Convergence 1 and Convergence 2...are these the same things?
     
  15. Josh Lowe

    Josh Lowe Screenwriter

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    no, e-focus and m-focus are electronic and manual focus of the lenses. you'll see instructions for both under "known tweaks" on panny.tv

    they don't seem to be that difficult as long as you're very deliberate and careful..
     
  16. Matt Stone

    Matt Stone Lead Actor

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    Oh...okay, thx for the explanation.

    I'll probably try these next weekend, if I can find the time.

    Thanks for the suggestions!
     
  17. Leif Wall

    Leif Wall Second Unit

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    I've done the E Focus and M Focus on my set, and they don't take long at all. For E Focus, I'm talking like a couple minutes. They will both make a world of difference. As will a 64 point convergence. That will take a lot longer, but is WELL worth it.

    Do not give up on this tv. Mine (53wx42) looks light years better then when I first got it. I'm in the middle of watching Hannibal right now and it looks just plain awesome. Blacks are an abysmal black, colors are vibrant, and the picture is ultra sharp.

    The only issue that I have is some some light on the very left of the screen that runs from top to the bottom. I was told this was possibly an underscan issue. I've tried and tried and tried to fix this in the service menu, but it just won't go away. Thankfully I only notice it when looking at it from a foot or two away.
     
  18. Josh Lowe

    Josh Lowe Screenwriter

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    leif, you can fix that by going to convergence 1 and moving the picture over slightly to the left (moving the green cross will shift the picture). at least that's what it took on my TV. you'll need to tweak your overall convergence again but it's worth it to make that bright edge go away.
     
  19. Ming Wang

    Ming Wang Agent

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    on my set, I found the focus was quite good out of box. but geometry was a mess... once entering the fine convergence mode, almost none of the lines were straight.
     
  20. Dann B

    Dann B Auditioning

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    Hi again... my set too had some pretty nasty convergence probs right out of the box. I called panasonic warranty and they sent out a local repair guy to check it out. As I suspected, he pulled out a copy of the service manual, went in to service mode and did a half-assed job of doing the convergence. It was pretty far off... the bottom right corner was as much as 1/4" - 1/2" off, it was so plain to see on the grids. He didnt mention anything about focus, and then he left. A couple days later I went back into the service menu because I didnt think he did a good job. I didnt even have the service manual in front of me and I got it just about perfect. After messing with all the options that the fine convergence has to offer... im pretty convinced you can fix just about any convergence problem in there. My problem only seems to be with the red gun.
     

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