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Ever Wonder What's Inside Your Sony Monitor or TV Set?

Discussion in 'Issues Around the World' started by Coot, Jan 17, 2003.

  1. Coot

    Coot Passed Away January 7, 2010

    I spent the day at one of our customer's in Oceanside today, investigating issues they are having in fabricating our product for use inside the CRT on Sony TV's and computer monitors. We provide them rectangular CRO-Moly steel tubing for the internal frame. Here's some pictures with brief descriptions of what's going on.

    The first picture is where they cut the tube to length and punch certain flares and angles for a later welding process.
     
  2. Coot

    Coot Passed Away January 7, 2010

    This next picture is after the frame is welded...sorry, no pictures allowed of the welding robots. These frames are on their way to degreasing and caustic bath.
     
  3. Coot

    Coot Passed Away January 7, 2010

    This next picture is the frame coming out of the annealing oven. The spend one hour at 535 degrees F. CRO-Moly is an extremely hard steel in excess of 110 Rockwell. The annealing is to remove the stress in the steel from the fabricating so that it is more compliant when the tube is formed around it.
     
  4. Coot

    Coot Passed Away January 7, 2010

    This next image is after the shotblast. A shotblaster is basically an automated shotgun. Small steel bb's, much like buckshot is pneumatically fired at the surfaces to remove any last scale or other deposits prior to a sealer coat being applied.
     
  5. Coot

    Coot Passed Away January 7, 2010

    This picture is of a display sample of the frame with the aperture grill applied. The aperture grill is nothing more than a very fine mesh that the electron guns of the tube have to fire through to define the pixels.

    Just thought some of you folks might be interested in what's inside there. These frames are then shipped to a Sony facility to have the electron guns and yokes mounted and then have the glass envelope applied.
     
  6. ethics

    ethics Pomp-Dumpster Staff Member

    Hehe, very interesting stuff. I buy and own only SONY tv's too. :)
     
  7. mikepd

    mikepd Veteran Member

    Sony's are great. Of course, some people complain about the Trinitron, not understanding that Sony flat screen technology has a unique method of dealing with the situation.

    As described in a press release:

    "One of the unique features of the Trinitron CRT is what is called the Aperture Grille. An Aperture Grille consists of a series of long vertical slits fastened with strong vertical tension to a steel supporting frame. Electron beams pass through the Aperture Grill to illuminate phosphor on the faceplate. The vertical tension of the Aperture Grille absorbs any thermal expansion, thus eliminating the problem of doming or color spill and resulting in a superior picture quality.

    Since the CRT requires a vacuum to function, a damper wire which is approximately 15 microns in diameter is strategically placed on the Aperture Grille to reduce susceptibility to resonance. The "line" that some customers see on the screen is not a fault but the damper wire which has always been an integral part of our Trinitron technology."


    Thanks Coot for the pictures and explanation. Great stuff.
     

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