How often do you use the scrolling bars?

Discussion in 'Plasma TVs Forum' started by djmattsims, Feb 18, 2013.

  1. djmattsims

    djmattsims
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    I've been noticing a fair bit of IR since my D6900 had a new panel fitted. It's not a major concern as it literally only sticks around for a few minutes. However I seem to have developed a bit of paranoia about it and if I watch a film with black bars, for example, I end up running the scrolling bars for an hour once I've gone to bed. I reckon on total I run my scrolling bars for around 5 hours a week. Does this seem excessive? I've heard some people say that using the scrolling bars too much prematurely ages your set. Is that true?

    Also is it a major problem to turn off your set whilst its showing some IR? Or is it best to try and shift it before switching it off?
     
  2. Scooby2000

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    Its fine to turn off a set with IR in fact you do it all the time without realising, slight IR can be reduced by simply having a set off as the charge can dissipate.

    With a new panel 5 hours a week of scrolling bar sounds fine, after having gaming I often leave them going for a few hours.

    The IR you're seeing, are you looking for it? or is it clear from where you sit?
     
  3. djmattsims

    djmattsims
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    I am looking for it....but it is also pretty clear from where I sit. If I'm aware of a logo being on screen for any longer than 30 mins I'm expecting to see some IR and if I look...it's there!!!!!
     
  4. k17chy

    k17chy
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    havent used them or any other ir removal method in a long while, no need as the ir on my set is pretty none existent.
     
  5. Inferno

    Inferno
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    I have no i.r on my set either but i run the scrolling bar once a fortnight on a Sunday night as i go to my bed and the set turns itself off after an hour, just to be on the safe side.
     
  6. panman40

    panman40
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    You have no IR because your pixel orbitor covers squill ions of pixels :D
     
  7. Inferno

    Inferno
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    Spannerman that was not the orbiter mate, it was user error :facepalm:.
     
  8. Scooby2000

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    lol been there, try not to worry about it too much, I was messing with my sets settings last night in a dark room and could clearly see the menus retaining, it went in seconds though, completely normal. The bars should shift anything too stubborn, if you find the sets retaining more than you think it should, then definitely run the bars regularly, it won't hurt and the set should settle over time.
     
  9. fluxo

    fluxo
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    I've never used the scrolling bar on my Panasonic. Partly that's because I've had no IR issues, but also I worry that using the scrolling bar prematurely ages the panel. In the service manual you can see it is available as an "aging" option from the service menu (I'm not sure whether that is to cause ageing or test for it).
     
  10. Scooby2000

    Scooby2000
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    Likely meaning it can be used to run the set in safely. It's an anti burn measure in feature more than anything. On my D6900 its actually under Screen burn protection in the system menu.

    People talk about premature ageing like these sets don't last long, plasma has a half life of 100000 hours, I'd not worry about it.
     
  11. Zebedee

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    Half life Scooby :eek:

    Does that mean I'll have to worry about radio-active decay or summat ?

    Better put on my lead undies when I'm sitting on the sofa ... just to be on the safe side ...:D
     
  12. fluxo

    fluxo
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    That's not going to be 100,000 hours of running the scrolling bar, though, is it?

    And maybe it goes like this:

    [​IMG]

    In other words, after up to 100,000 hours the set has lost half its brightness,
    but most of that loss occurs far earlier. In the plucked-out-of-thin-air graph half of
    that loss, i.e., a quarter of the set's initial brightness is lost after only 14,000 hours
    or thereabouts.
     
    Last edited: Feb 19, 2013
  13. Scooby2000

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    :rotfl:
    No its the time before they fade drastically.;) Electronics wise plasma are no different to LCD. With new plasmas the electronics will likely fail before the panel reaches its half life.
     
  14. Scooby2000

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    Id hope not, why would you just want to watch a scrolling bar.;)

    Seriously how many years of life do people think running the scrolling bars will take?
    100000 hours is about 36 years at 8 hours a day, most people replace their sets now between 4 and 10 years. People should not be put off using this feature IMO its there for a good reason.




    Edit: actually that closer to 37 years.
     
    Last edited: Feb 19, 2013
  15. fluxo

    fluxo
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    Please see the addition to my previous post. I think its actually quite likely
    that the light level loss follows some sort of exponential decay pattern, but
    that is entirely speculative.

    I'm not sure how usable the pro modes on the Panasonic's would be if they
    lost half their oomph ( technical term :--). Some people are not happy with
    their light output already. So the question then is: how many hours until the
    pro modes become unusable for those who are not yet unhappy with them?
    That is not necessarily the number of hours until half output loss. It could be
    a quarter or an eighth. I could not say.

    The Samsung's such as the D6900 may well be different.
     
    Last edited: Feb 19, 2013
  16. Scooby2000

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    14000 hours? Hmm not sure about that my parents had a set for six years and loss of brightness wasn't anything near that.

    Even going to 50000 hours for quarter brightness is still a lot of years.

    Their set was a PX60.
     
    Last edited: Feb 19, 2013
  17. fluxo

    fluxo
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    Do you think that, unless you had taken measurements, or had a new TV
    next to it for comparison, it might be hard to notice?

    If I look in the mirror I don't seem to have changed much over the last few
    (-- cough --) centuries. But if I was stood next to a younger me I'm sure the
    differences would be clear to see.

    True. But we don't know if it is 50,000. Again, that is assuming the decline
    in output is linear, which is pretty unlikely in my opinion. What we really
    need is people taking actual measurements and then we will know.
     
  18. Scooby2000

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    Then if its not noticeable its not an issue surely.:)
    Its quite a pointless debate if indeed this is one, unless OP plans on keeping his set for 10, 15, 20 years and even then I don't think a regular use of the bars will make much difference. Also the frequency of which the bars will be needed also reduces as IR problems deduce.
     
  19. gylonso

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    Not sure if this will be of interest in the discussion, but if it is something like exponential decay then this will be down to 0% rather than to 50%.

    Exponential Decay.jpg

    The insert displays the 100000 hours timeframe expanded, which shows that while it isn't linear, the rate of decrease doesn't change that dramaticaly over that time period.
     

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