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Unsheilded speakers and TVs - permanent damage?

Discussion in 'Televisions' started by Lesmond, Mar 28, 2003.

  1. Lesmond

    Lesmond
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    Folks, if unsheilded speakers are placed near a TV for a while :nono: will this cause permanent damage to the TV? Will the discolouration be cured by the inbuilt degausing of the set? What other damage could it cause?

    Les
     
  2. evans

    evans
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    i dont know about the tv but i put my speakers near the monitor of the computer and there was a patch of discoloration on the monitor , i just deguassed it and it was okay no problems.

    suspect the same with the tv .
     
  3. Johndm

    Johndm
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    Degaussing will get rid of 'minor' discolouration, but I believe permanent damage will be done to the shadow mask in the TV if you leave them there for any length of time.....best move em away to be safe eh? :lesson:
     
  4. Pod Person

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    I ruined a 14 inch portable once by putting speakers too close to it. Even after degaussing it the colour purity was spoilt. The whites were very slightly yellow.
    I keep speakers well away from my current tv sets.
     
  5. mjm01

    mjm01
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    Is this also an issue with rear projection sets or just 'tube' sets ??
     
  6. bommaren

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    If the TV's built in degaussing is not
    enough, a TV repair shop can do a
    external degaussing.

    You can do it your self if you know how,
    You need physically large electro magnet, at least 40cm diagonally...

    won't tell you more, you can get your self electrocuted...

    -- B
     
  7. Achy

    Achy
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    How far away should speakers be ? Does it depend on their power?

    50cm ? 1m ? 2m ?

    Ta.
     
  8. Johndm

    Johndm
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    I would suggest half a metre absolute minimum, preferably more.:lesson: (Unless someone else knows better):D
     
  9. LV426

    LV426
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    It's the same issue, but with different end results and depends on the type of RPTV.

    If it happens to be a (fairly rare) LCD RPTV - there is no magnetic damage.

    If it is a (more likely) CRT RPTV, then magnetic interference will cause the convergence to go wrong (ie you may get coloured edges around things somewhere on the screen). It doesn't cause colour 'staining' as on a direct view CRT.

    And - for direct view LCD and Plasma - no effect from external magnetism.
     
  10. mjm01

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    So, the fact that my front speakers are only approx an inch and a half from the side of my Toshiba 42pw23p (CRT RPTV) will likely only cause convergence issues that I can fix via user or service level convergence adjustment but with no permanent damage? ... Good !

    The closeness to the screen is dictated by room size and the old isosceles triangle approach for audio.

    When I just had a 32” widescreen set, I could have the speakers about half a meter away … and it didn’t seem to cause too much of a problem over 3 years.

    I can live with the requirement to do convergence adjustment every so often … something to fiddle with !!
    :smashin:

    Mark M
     

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