Cf 19 screen woes

Discussion in 'Panasonic' started by johnsboy, Apr 3, 2014.

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  1. johnsboy

    johnsboy Notebook Enthusiast

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    I have a cf 19 mk1 touchscreen and the screen is blank, ie only the backlight working but works when connected to an external monitor and booted up.
    I have found the lcd cable on the back of the screen is bad so had a cf 18 cable to connect to it to try it but it is still the same.
    When I connect the cf 18 cable to the cf 19 screen and to an old cf 18 the screen works so I know it is ok.
    Is there a fuse or anything else that can affect it or is it likely the motherboard stuffed
     
  2. onirakkiss

    onirakkiss Notebook Deity

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    Yep, there is a fuse near the connector on the mobo. In the schematic it is F2 with 2A. If the fuse is ok, there should be power on pin 19 and 20 at the LCD-connector. On the opposite end (Pin1-4 and 6,9,12,15,18) should be ground.
     
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  3. johnsboy

    johnsboy Notebook Enthusiast

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    Onirakkiss your a star. Thanks.
    The fuse has blown. I have carefully probed it with 2 pins with some wires to a fuse and powered the toughbook up and the display works again with the cf 18 cable.
    The cf19 cable must have shorted together .
    Now I need to find someone to solder another fuse in for me. I am handy at soldering but this is beyond me and don't want to risk it. I have a dead motherboard to donor a fuse which is a good do.
    Thanks again
     
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  4. SHEEPMAN!

    SHEEPMAN! Freelance

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    That's why onirakkiss is on the "Scary Smart" short list.

    I don't "like" anything but I like this.

    Mods this needs to be a sticky or something.

    Jeff
     
  5. Shawn

    Shawn Crackpot Search Ninja and Options Whore

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    Add the important posts to the CF19 FAQ
     
  6. toughasnails

    toughasnails Toughbook Moderator Moderator

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    I just put a link to this thread in the CF-19 FAQ.
     
  7. ADOR

    ADOR Evil Mad Scientist

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    I do really need to get back on updating that with the newer models info.
     
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