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    CF52 mk2 Touchscreen build (part 2)

    Discussion in 'Panasonic' started by CWB32, Jul 2, 2015.

  1. CWB32

    CWB32 Need parts for my flying saucer.

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    build continued :
    i strongly suggest replacing the protective cover on the front of the touch screen to prevent damage during the next few steps .
    DSCF3485 backside 1 text copy final.jpg

    this is where the four conductor cable is cut to length.
    shown is the variation of permanently attaching the USB cable .
    leaving the white connector on will allow easier removal for servicing .
    note : if you have a problem with "reversed vertical cursor response" , flip the four conductor connector .
    also , with my install , i left the white connector on the board and married the *new* USB cable to the mating connector via the pigtail/splice method .
    double check your connections:
    DSCF3498 backside 2 text final.jpg
    the rubber spacers on the back of the display will need to have .1" removed from them to compensate for the thickness of the touch screen .
    when putting the lcd/housing bezel back together check for any tape or "buss bars" in view .
    the tape can be trimmed ,
    the LCD assembly can be centered by changing the shims on the four sides ... this will vary between machines due mostly to the initial placement of the touch screen.
    for example , my machine required three 1/16" rubber spacers along the bottom edge , 1/8" spacers at the top and 1/8" spacers on the sides .
    this cleaned up the display area and left only a thin bit of the right buss bar in view .


    the fine points of connecting the "new" USB cable to the port connector .
    the red and black wires are for a lighted keyboard modification (another project) .
    seal/insulate the wires with hot glue:
    DSCF3509 power usb enable details.jpg
    yeah , that leaf spring let go ... i am not going to replace it .


    an overview of the "new" usb cable routing :
    DSCF3507 usb cable routing detail.jpg


    this is pretty much all of the high points and general construction details.
    reassembly will require a bit of patience .
    i strongly suggest a protective cover film for the touchscreen ... it is a bit "soft" .

    the touch screen has 80% transmission ... you may have to crank up the brightness a tad .
    the LCD is a little dim for my tastes ... this may be due to the age of the ccfl .
    i will be investigating the conversion to a couple of LED strips to replace the ccfl and increase the brightness .
    this should raise the brightness to a level comparable to that of a CF-30 .

    there is one more thing ... in case you *somehow* manage to pop the fuse for this port ...
    it is located here (fix partially shown) :
    DSCF3514cctu.jpg
     
    Last edited: Jul 2, 2015
    toughasnails, onirakkiss and Shawn like this.
  2. Shawn

    Shawn Crackpot Search Ninja and Options Whore

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    Now I understand the buss bar showing slightly....
    I have some super thin opaque black tape that would cover the bus bar nicely.
     
  3. CWB32

    CWB32 Need parts for my flying saucer.

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    nothin' like a little thread necromancy in the morning ... :biglaugh:

    oh yeah ...
    if you ever have to split the lcd/touch screen for some reason ...
    such as changing over to dual high powered ccfls or led backlight conversion ...
    do not forget that the touchscreen four conductor ribbon cable is under the blue tape !
    ooohhhhh ... i used bad words about one second after i made the cut !
     
  4. Shawn

    Shawn Crackpot Search Ninja and Options Whore

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  5. CWB32

    CWB32 Need parts for my flying saucer.

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    this *project" thread should get you through it .
    i would used a smaller diameter four conductor cable than the one i used ... it will be friendlier to route .
    and fer gawd's sake ... do not cut through the TP four conductor ribbon cable !

    ps ... you would not believe how good the photos look on this samsung 50" UHD 4K *monitor* .
     
  6. Shawn

    Shawn Crackpot Search Ninja and Options Whore

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    If I do it, I will use transparent Kapton tape or 1/8 wide double faced black tape.

    50" monitor
    I envision going to a drive in theater to show the films of my latest screw up.

    " ...And right here is where Shawn must have lost his mind to do something soooo stupid" Then comes the video of .. twenty-seven 8×10 color glossy pictures with circles and arrows......
    All on a 50' screen with 300 viewers.

    This is the postings you get when I wake up at 3am.
     
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