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Radar display fogging

Discussion in 'Boat Electronics' started by Richard Lane, Oct 22, 2004.

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  1. Richard Lane

    Richard Lane Guest

    The LCD display on my JRC 1500 radar fogs on the inside of the front
    glass window (not on the LCD itself). It seems that warm moist air
    inside the unit condenses on the cold glass window. I returned it to the
    service center during it's warranty but it still fogged afterwards, now
    that the warranty has long expired I am toying with fitting 2 spigots
    that would allow warm dry air from say a 12v hair dryer to sweep out the
    moist air. Any comments?
  2. Is there any way you can fit silica gel bags inside the casing?

    Remove "nospam" from return address.
  3. Keith

    Keith Guest

    Wonder how the moisture is getting in there? Sounds like something's not
    sealed properly. Can you just remove the glass? Assuming you can take it out
    and replace it, maybe it's not sealing properly upon reinstallation. Maybe
    use Rain-X on the inside?


    'Every man has his price. Mine is $3.95.'
  4. Richard Lane

    Richard Lane Guest

    When I returned the display under warranty I suggested that perhaps the
    long vertical distance between the clamshell clamping screws allowed the
    plastic to "bow" and not pinch the rubber gasket. JRC repair service
    didn't comment. I do notice a 1/16" hole towards the bottom right of the
    clamshell face that is the reset access, surely that is not "open to the
    Inserting silica gel sacs or accessing the backside of the face glass
    requires separating the clamshell halves and is not a thing I would want
    to do as a regular maintenance chore, that is why I thought of the warm,
    dry air method.
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