Announcement

Collapse
No announcement yet.

video overload

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

    video overload

    I have a problem watching high def tv and thought I'd ask everyone's opinion about what to do.
    It involves the H20 direct TV reciever connected by fair quality component cables to the 1080i inputs of a philips large rear Projection set.
    Watching Hi def channels is a teat and doesn't creat any issue, until a commercial, many commercials, come on.
    We all know how the audio signal kicks up about ten db with each commercial, but apparently the video signal is also increased.
    The set is flawless until a commercial shows an all white screen, like one with some drug product in the middle.
    At that moment the lower half of the screen goes into what looks like jagged horizontal tearing, as if it's video overloaded or ssome ham is keying up.
    The sixty inch philips set is zero referenced for excellent picture display and is about four years old, never been relocated since new.
    The DTV reciever was a notorious problematic device and may be the culprit?
    There is no HDMI inputs on this system but my first thought is to try using three video resistive attenuator rca plugs on the component lines to knock down the level slightly.
    After that I would be recapping the DTV reciever becuase it's always very hot.
    And lastly I'd have to attack the video in section of the tv with new caps.
    If you've read all this far do you have advice for me about which is the best aproach?
    I would love to be able to totally block all commercials completely from view which would be the very best answer.
    Jim

    #2
    Re: video overload

    It sounds like a problem with deinterlacing, or the different resolutions of the program vs the commercial.

    Most commercials are still in the regular 4:3 format, the HD program is 16:9. First change the TV set's settings to show the native resolution. There should be black bars on the side of 4:3 programs. This may not be good for the set, but try it to see if it resolves the problem.

    If your set has any options or adjustments for deinterlacing, try different settings. The same goes for the receiver.

    Most of my experience has been with PC based digital TV tuners. In a PC, the video card is the most important component, where HD is concerned. Even though TV sets will deinterlace the signal sent to them, I still need to deinterlace the signal before it is sent to the set (figure that one out).

    Here is some more info on deinterlacing:
    http://en.wikipedia.org/wiki/Deinterlacing

    Comment


      #3
      Re: video overload

      Thanx Paul, that puts my thinking in a different direction.
      The RP is a 4:3 screen becuase I have not adjusted my brain to wide format.
      In auto mode the set will compensate for the letterbox and basically takes whatever it gets and iether streches or zooms it to fill 60'.
      Also that was one of the beefs about that H20 reciever,
      it was touchy about how it scans for resolution changes.
      I looked into an older version of the Replay tv units that have a commercial cancelling feature. In real time I suppose it gives you ten minutes of blank screen when the station breaks to sell drugs or tell you about a summer's eve product.
      I have the 1800 page manual for the set
      becuase I need to change oil in the future.
      Saw green algea globs down in the blue tube when dusting.
      Maybe there are some settings I can fiddle with to control that input.
      It isn't even that big of an issue with watching tv,
      I've been watching youtube more anyway.
      Really good tip about jittery interlace.
      Jim

      Comment

      Working...
      X