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    CF-19 Dual Touch screen add on.

    Discussion in 'Panasonic' started by prmayner, Aug 14, 2014.

  1. prmayner

    prmayner Notebook Enthusiast

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    CF-19KJRCX2B

    Has anyone done it or know if a dual touch screen can be added to a CF-19 that just has a digitizer screen? Thanks for your help.
     
  2. BaRRmaley

    BaRRmaley Notebook Deity

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    Your CF-19 has a touch screen, not digitizer.
    And simple answer is no.
     
  3. prmayner

    prmayner Notebook Enthusiast

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    Excuse me for my ignorance, just got into the world of Toughbooks. Is that touch screen as in finger touch or pen touch? Or both?
     
  4. toughasnails

    toughasnails Toughbook Moderator Moderator

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    The touch screen you can use a pen and finger, the digitizer you need to use a digitizer pen only....no finger

    Touchscreen Stylus pen $10.00
    digitizer pen $30.00+
     
  5. Shawn

    Shawn Crackpot Search Ninja and Options Whore

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    All CF19 Mk3 and above have the connectors on the motherboard for dual touch/digitizer. Knowing that, I think it can be done.

    The easiest (not cheap) way is to get a top half from a dual touch/digitizer unit and swap with yours. The top CAN NOT be from a mk1 or mk2.
    The hard way is to get a touch panel and touch panel PCB and add them to your top. That involves complete dis-assembly of the top half so you can tape the touch panel to the front bezel then reinstall the LCD panel..I am not sure if the LCD cables are the same for digitizer only and dual touch/digitizer units on the mk3 and above. I think the cables are the same.

    Don't know if you would need a BIOS upgrade...
     
  6. prmayner

    prmayner Notebook Enthusiast

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    Appreciate everyone's help, that has cleared up a lot. The difference in touch vs. digitizer. I just bought this and the seller said it was pen only, so I wanted to clear that up, thanks. Digitizer Pen's aren't cheap. So if I needed to it sounds like the best way to change it over would be to replace the whole top from another mk3, gotcha. Thanks man you 've been a big help.
     
  7. prmayner

    prmayner Notebook Enthusiast

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    WOW! toughasnails your way up there, How's the weather? I'm way down here in East Texas, but it has been a rather mild summer, around 90 today. 65 in the morning. 45% humidity. can't complain.
     
  8. toughasnails

    toughasnails Toughbook Moderator Moderator

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    Summer time it's anywhere from 75 to 100 and mornings 65-70 but we have had some bad weather this week and dropped to a low of 48 in the morning. My ex-wife had a sister that lived in Texas so I do know what kind of weather you guys can get :eek: . She always said she missed the snow at Christmas...
     
  9. johnsboy

    johnsboy Notebook Enthusiast

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    Posted this reply on another thread and though it would come in handy here too.

    Thought I'd share my findings on this.
    It can't be done on a cf19 mk3 using a cf18 digitizer panel, I thought to give it a go with a mk3 touchscreen I have got and my pile of bits from other cf18s and 19s.
    I took the screen back off both my mk3 dual touch and touchscreen. The wacom digitizer panel is different to the cf18 one and also on the mk3 dual touch the touchscreen pcb is incorporated on the wacom pcb.
    I have a spare mk3 dual touch harness which will connect to the cf 18 digitizer panel but then you have no connection for the touch screen pcb so it will just convert it to a digitizer.
    To add to Shawns cable query, the lcd cables for mk3 touch are different to dual touch because of the combined wacom digitizer/touch pcb
     
  10. ohlip

    ohlip Toughbook Modder

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    No, no!.... The CF-19mk3 and above uses an LED backlight while what you are trying to do is an LCD panel that uses CCFL tube but if you are elec. tech. it can be done(this is for an expert only). Even the expert will have difficulty due to the non-availability of its schematic. Also the TSpcb, backlight inverter and digi. controller board are integrated into one PCB board on MK3 and above. While on all CF-18, CF-19mk1 and MK2 are different. They are all have separate controller pcb board for each system.

    Yes! The CF-19MK3 and above can be either ts only or dual touch but it must be an LCD panel that came with same model. What I mean is that the dual LCD panel from MK3 and above can be install on TS model and vice versa.

    ohlip
     
    Shawn likes this.
  11. johnsboy

    johnsboy Notebook Enthusiast

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    ohlip,my response was from reading one of your replies from another post about converting a mk3 to dual touch by using just the digi panel from a cf 18 so I thought I'd try but on opening the cases I found the differences.
    From looking at both my mk3s the touch and the dual touch led pcb look the same part and connector, the lcd connector is the same but the dual touch digi/ts is a shared pcb with a different connector to the ts version
     
  12. Shawn

    Shawn Crackpot Search Ninja and Options Whore

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    Photos please?
     
  13. ohlip

    ohlip Toughbook Modder

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    Sorry! that there must have been some confusion. What I am saying on that thread is that the MK3 ts model can be a dual touch by adding the digi panel only. Not the whole LCD assembly from CF-18 or CF-19MK1 or mk2 digitizer. Also, you must have to identify which circuit of the harness from dual touch are for digitizer and for ts so that you can mod the harness that will go/plug into the digitizer panel.

    ohlip
     
  14. johnsboy

    johnsboy Notebook Enthusiast

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    Yes, I was just going to add a digi panel to my mk3 ts using a spare mk3 dual touch harness I have to make it dual touch but found it has to be a mk3 digi panel as they are different to the cf 18 digi one I had from a cracked screen.The mk3 digi panel pcb is towards the top left of the screen and has a connector for the ts ribbon.
    I can post some pictures sometime to show my findings
     
  15. cheap4tw

    cheap4tw Notebook Geek

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    Can you please post the pictures of the MK3 digitizer board?

    I am going to attempt to add dual touch to my CF-19 MK4 right now which is touch only.

    So far I've aquired a dual touch harness and a digitizer panel from a CF-18. If I need a different digitizer panel I'd like to know before I tear things apart.

    Here is a picture of the back of the panel I purchased from Shawn:

    [​IMG]
     
  16. cheap4tw

    cheap4tw Notebook Geek

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    Ok so I figured I'd take a look at this today and am already confused. Where on the main board are the connectors that the harness connects to for the touch screen and the digitizer?

    I removed the bottom cover and do not see them, are they on the back side of the main board?
     
  17. Shawn

    Shawn Crackpot Search Ninja and Options Whore

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    On top under the access door under the keyboard..
     
  18. cheap4tw

    cheap4tw Notebook Geek

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    Awesome thanks Shawn.
     
  19. cheap4tw

    cheap4tw Notebook Geek

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    So far I've confirmed the both the harness made for a dual touch and the stock harness made for just touch screen both connect to both mainboard connections. I was hoping this would be something as simple as running a direct wire from the digitizer connection on the motherboard to the digitizer panel.

    Next I am going to remove the back of the screen and take a look at the harness where it connects to the touch pcb. If it turns out that johnsboy is right then I may consider buying a second stock wiring harness and trying to combine it with the dual touch harness I have. I'd buy an MK3 digitizer but haven't seen any come up on ebay and am kind of scared of the price Heartland will want.
     
  20. johnsboy

    johnsboy Notebook Enthusiast

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    cheap4tw, your cf18 digitizer panel pictured won't fit a cf19 mk4.
    If the mk4 is the same as a mk3.
    WP_20140830_003.jpg Digitizer panel part number.
    WP_20140830_005.jpg Touchscreen (right pcb) and led pcb (left pcb)
    WP_20140830_001.jpg digitizer connections.Blue circles show digitizer cables. Red circles show pass through for touchscreen.
    I think thats right but need to look again as I have a mk3 screen assy that I have added a digitizer panel to as a spare for a project and it was a few months ago but i can take the back off again if you want to know anymore
     
  21. johnsboy

    johnsboy Notebook Enthusiast

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    The pcb on the 3rd picture is for the digitizer and the touchscreen also connects to it using the connectors circled blue. The harness I used was from a dualtouch but noticed I circled the wrong connector, that is from the led pcb which is the same for touch and dualtouch models.
    If you can use the cf18 digitizer panel you will loose touch unless you modify the harness to suit which might be complicated, I prefer plug and play.
    I was lucky to find my screen and digitizer panel on ebay and had a discount voucher too so only payed £64
     
    Last edited: Dec 16, 2014
  22. Shawn

    Shawn Crackpot Search Ninja and Options Whore

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    In my opinion, I prefer a digitizer over a touchscreen any day..
    Personally, I would replace the touchscreen with a digitizer.

    I have been searching for a digitizer that would fit in a CF30..No luck yet.
    I have found one that will fit a CF52, but it would cost me $200.00
     
  23. toughasnails

    toughasnails Toughbook Moderator Moderator

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    Yours is not dual touch ??
     
  24. johnsboy

    johnsboy Notebook Enthusiast

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    Digitizer screens win in my book. My 19 is dual touch but I use it all the time with the digi pen.
    I have another mk3 but its just touchscreen but don't know wether to convert it or wouldn't mind a mk5 if it will convert.
    I find using a regular laptop hard work now after catching the toughbook bug
     
  25. radiotech1

    radiotech1 Newbie

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    How can you tell from the model number if the laptop is touch or dual touch?
     
  26. BaRRmaley

    BaRRmaley Notebook Deity

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    CF-19* X*****
    A symbol under "X" helps us :)
     
  27. Shawn

    Shawn Crackpot Search Ninja and Options Whore

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  28. radiotech1

    radiotech1 Newbie

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    Thanks Shawn! The link worked and it does show dual touch in the description when I type in my model number.

    One other question. Do to the CF-19 MK5 and up video cards support OpenGL 3.0. My MK4 only seems to support OpenGL 2.0 and there is no upgraded video driver that runs OpenGL3.0 for my MK4.