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Jun 01 2009

Plasma TV’s outlook is snowy


image thumb47 Plasma TV’s outlook is snowy If your a plasma TV owner you should know they are prone to fail from the get-go.

Plasma TV’s have a great picture and are lower in price in comparison to LCD TV’s, but the issue is that plasma TV’s get hot and once they start getting too hot the signal to turn the pixels on and off get lost and the result is the multi-colored [green, red, blue, black, etc] dots start showing up in the picture where they shouldn’t.

Take for instance the Magnavox 50MF. I’ve had some experience with this plasma TV and I worked with it for about 8 months [apparently a break in period] and for the 8 months I had one it was fine, but after that I noticed some issues.

 

A recommendation to you, and what I did, purchase the 1yr warranty on the TV when you buy  it-I’m glad I did since I had to got through this experience. But my issue is common with plasma TV’s. A lot of people have reported it and thus they are prone to fail from the time they are manufactured.

What happens to the TV, the more use it, the more the components break down and the electrical circuits capacitors break down [break in would be a better term] and when this happens, this is when your going to start having your issue.

The problem is non-existent when you first power on your TV, but in 15 minutes [or less] the screen will begin to speckle with multicolored dots/snow; mainly in the middle of the picture. This is most noticeable if you like to watch TV in the dark.

The correction is easy, but not without calling a service tech.

The remedy is to take the TV from the mount, take off the back of the TV and make an adjustment to a tiny little screw. The adjustment is not rocket science; you turn the screw until the snow goes away. These are the exact words of the tech that came to my home. And even doing this, it’s not guaranteed. It will have to be adjusted again as the TV gets older [breaks in more].

The service call was free for me [cause I bought the warranty], but otherwise your average Joe it could cost $80-150; to turn a screw to a non-specific point.

Yeah, your first question is why isn’t this a automatic type of adjustment. Sounds like a money make for the technicians; make a faulty product and charge for warranty and service calls.

Now the TV I’m referencing is now discontinued, but all plasma TV’s have this issue. They get really hot and tend to have the same basic problems.

Large plasma TV’s have a average lifespan of 60k hours [give or take] and racking in at about 10-12 years. They consume a lot  power; averaging about 300-400 watts. This is where you get all that heat. LCD TV’s have a longer life, use less power and would be my next choice for a TV.

 

Thanks for reading!



  • http://bryansays.com Bryan Lee

    Great article. I’ve never had any experience with plasma TVs but if I ever do, I know how to turn the screw.

  • webmaster8753

    Just the information I was looking for to supplement my site about tv wall brackets. Do you mind if I link to this page from my website?

    • http://www.lehsys.com lehenryjr

      Sure, I've no objections as long as the site is honorable.

      Thanks,
      L. Henry Jr.
      http://www.lehsys.com

  • Jerry

    so where is this adjustment screw to adjust away the snowy picture on a sony wega ke-42m1 model, you have a pic of the location

  • http://intensedebate.com/people/lehenryjr lehenryjr

    I don't know. I had a Magnavox TV and I didn't do the
    service, but the tech showed me the adjustment screw and the size of it
    and it's less than 1/4 inch squared and it had a small slot turn screw
    in the middle; he turned it ever so slightly and wa-la snow was gone.

    I thought it was so stupid- and said this should be an automatic thing
    to adjust; he agreed.

    Hope this helps.

    Thanks,
    L. Henry Jr.
    http://www.lehsys.com

    • Joe

      Any idea where a Zenith plasma screw is located?

      • lehenryjr

        Yeah.
        But first, a disclaimer, if you do this, what you read here can be used as 'at your own risk' – I'm not responisible if you jack something up; directly, implied or otherwise.

        Obviously, you should take it to an authorized dealer, but that's about $400 dollars + shipping; if you ship it- from my experience.

        You have to take off the back of the TV, be careful [lots of screws], there's a heat shield in the middle, remove that and look about 3" center/down from the top of the heat shield where you removed it, and you should see a really SMALL adjustable screw; turn it clockwise until the snow goes away. Don't over tighten! Back off The screw until the snow goes away; just enough to remove the snow.

        To test quickly, throw blankets over the TV, turn it on. The blankets will help the TV warm up quickly [5+ minutes]. You can adjust while the TV is on. Be very careful!

        I hope this helps…

        I hope you have a nice day

        Until next time,
        LEHenryJr

  • http://intensedebate.com/people/lehenryjr lehenryjr

    I don't know. I had a Magnavox TV and I didn't do the
    service, but the tech showed me the adjustment screw and the size of it
    and it's less than 1/4 inch squared and it had a small slot turn screw
    in the middle; he turned it ever so slightly and wa-la snow was gone.

    I thought it was so stupid- and said this should be an automatic thing
    to adjust; he agreed.

    Hope this helps.

    Thanks,
    L. Henry Jr.
    http://www.lehsys.com

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  • Iman Bandor

    How about Samsung TV, where would the screw be located

    • lehenryjr

      I'm sorry I don't know, but I assume it'd be closely the same issue, and the same resolution.