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Kenwood Exelon goes dark...help?

Discussion in 'Electronic Repair' started by Deke, Dec 9, 2004.

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  1. Deke

    Deke Guest

    This is an in dash Kenwood KRC-X858, about 4-5 years old, and the display
    has gone totally dark. Everything (FM-AM-Cassette) still works, but no
    display. Problem is compounded by the theft prevention system being on, and
    to deactivated it, you gotta have the display. If I disconnect power to it,
    its dead meat.
    Any car audio gurus have any suggestions, or is it time to just junk it
    ($399.00..OUCH!) and get a new unit?
    TIA
    Dennis
     
  2. Jerry G.

    Jerry G. Guest

    If you open the radio, and very carefully unassembled the display assembly,
    some of these radios have one or several small lamps inside, depending on
    the type. You should be able to find a replacement or substitute lamps at
    most of the electronic suppliers. It is a low current 12 or 14 Volt lamp in
    most of these radios. This applies to most of the radios that are using an
    LCD type display that is lit by a rear lamp. Some of these used a more
    sophisticated electroluminance display. Things can get more complicated in
    this case, but it is usually still repairable.

    If the display is the LCD type, and you shine a flashlight in to it while
    the radio is operating, you may see the indications on the display if you
    can get the viewing and light angles to be correct for this observation.

    If the display is an LED or vacuum tube type, then the problem can be with
    the driver circuits or the display itself. In this case, it would take
    someone with the proper setup, troubleshooting skills, experience, and
    availability of the proper parts to service it.

    --

    Jerry G.
    ======


    This is an in dash Kenwood KRC-X858, about 4-5 years old, and the display
    has gone totally dark. Everything (FM-AM-Cassette) still works, but no
    display. Problem is compounded by the theft prevention system being on, and
    to deactivated it, you gotta have the display. If I disconnect power to it,
    its dead meat.
    Any car audio gurus have any suggestions, or is it time to just junk it
    ($399.00..OUCH!) and get a new unit?
    TIA
    Dennis
     
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