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RCA Big Screen with fold over...

Discussion in 'Electronic Repair' started by Darrin, Jan 24, 2004.

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  1. Darrin

    Darrin Guest

    Ive just aquired a RCA PJR500sr 46 Projection tv.
    haven't had much time in the past couple of days to
    look at the chassis, but I can tell you it's a
    Hatachi VP3X.

    For a 21 year old projection system, this thing is in
    pretty good shape.

    however, it does have fold over.
    Does anybody know what caps may cause this on this
    chassis? Just looking to save some time.

    Being new to projection...
    Also, I'm getting an odd reflection/distortion from
    somewhere. I'm guessing misaligned optics? It's only in
    the bottom 5-6 inches of the image.
    ie: with a white line across the screen in this area,
    I see the line, plus a red line diagnally across the white.
    A green in parallel, and the blue line diagnally the other

    any help would be great.

  2. Guest

    My Hitachi 50" has a removable panel behind the speaker grill cloth. Under
    it are about 20 color alignment knobs. Tilt misalignments on horizontal
    lines are controlled by the vertical key knobs (look for Key and Key-U/L).
    One adjusts tilt at the top and top bottom (left and right for horizontal)
    simultaneously. The other adjusts only the top (left for horizontal). I
    had a friend generate a test grid of white lines and put it on a VHS tape.
    It helps a lot with the alignment. The other thing you can use is white
    movie credits that fill much of the screen.

    Good luck,
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