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Promethean Direct Support Thread, Promethian IWB - Spiking in Direct Support; Hi, One or two of our Prometheann IWB's have suddenly developed a "spike" The user can be working away quite ...
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    Promethian IWB - Spiking

    Hi, One or two of our Prometheann IWB's have suddenly developed a "spike" The user can be working away quite merrily writing on the board when suddenly you will see a sudden spike almost like a "heart trace" . I have searched elsewhere and most suggestions are either to update the driver or firmware for the board. Having tried both these suggestions to no avail just wondering if any body has seen this problem and what was their resolution? Any help gratefully received. Thanks!!

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    bladedanny's Avatar
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    As silly as it sounds. I've also seen intermittent spiking when an optical mouse is positioned perfectly on a wood grained surface making the mouse think it's moving. Usually turning the mouse upside down will either solve it or at least eliminate it as a cause.

    Aside from that updating firmware has often worked for me, but I have also had to have a few board controllers replaced by promethean.

    --edit--

    I've also know that electrical interference from extension cables etc. can cause spiking, although I've never personally had this issue.
    Last edited by bladedanny; 8th January 2014 at 10:32 AM.

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    jimmckenna (9th January 2014)

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    Hi, thanks for your reply. Interesting, about the mouse will try that one. Have considered electrical interference nothing of note near both locations where I am having issues. I'm sure it's not the board controller either as I actually moved another IWB to the room location and the problem remained. Again, thanks for your input!! Cheers!!

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    NikChillin's Avatar
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    Interesting, I am having the same problem with a board that worked fine before Christmas. I am about to update the firmware but will have a look at the mouse too. Cheers.

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    NikChillin, Hi can you let me know how you get on with the firmware/driver version etc? Thanks

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    NikChillin's Avatar
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    Quote Originally Posted by NikChillin View Post
    Interesting, I am having the same problem with a board that worked fine before Christmas. I am about to update the firmware but will have a look at the mouse too. Cheers.
    Rats! It's a serial connection, I will have to fit a USB connection and will let you know how I get on after.

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    GeekyPete's Avatar
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    If it was the mouse then it would also be apparent on the monitor. I've seen the cursor spike with a hair on the optical sensor. The OP isn't clear what is spiking. Is it the mouse cursor, does it happen when the surface is touched or the mouse is clicked?, is whole screen suggesting a Video/projector issue?

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    We get this in two situations.

    1) physical damage to the membrane.
    2) the circuit borad on the back becomming faulty.

    Luckily we currently have spare parts to fix both issues.

    Never touched firmware.

    Rob

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    NikChillin's Avatar
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    Plugged in USB connection and it works fine now.

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    Quote Originally Posted by GeekyPete View Post
    If it was the mouse then it would also be apparent on the monitor. I've seen the cursor spike with a hair on the optical sensor. The OP isn't clear what is spiking. Is it the mouse cursor, does it happen when the surface is touched or the mouse is clicked?, is whole screen suggesting a Video/projector issue?
    Thanks for the reply. Spikes when the board is touched with Promethean Pen. Have tried different Pens still persists. Not whole screen. Membrane appears to be intact with no obvious damage. Running out of ideas!!

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    plexer's Avatar
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    Quote Originally Posted by twin--turbo View Post
    We get this in two situations.

    1) physical damage to the membrane.
    2) the circuit borad on the back becomming faulty.

    Rob
    These are Promethean boards not SMART so no membrane to damage.

    Ben

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    jimmckenna (9th January 2014)

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    bossman's Avatar
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    @jimmckenna:

    see below:

    Promethean IWB Problem

    Second to bottom post by myself

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    I would recommend checking your cabling. First try cycling the connections including the power at the board.

    If that fails try using a different USB cable (a known working one if possible). It’s a standard A to B USB cable though you want to keep it shorter that 5 meters / 15 feet.

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    Quote Originally Posted by bossman View Post
    @jimmckenna:

    see below:

    Promethean IWB Problem



    Second to bottom post by myself
    Bossman. Thanks for that!! Apologies but what are the name of "clips" you suggest in the link. Excuse my lack of knowledge in this area, not my forte AV&Products. Cheers!!

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    plexer's Avatar
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    They are a clip on ferrite ring.

    Ben

  19. Thanks to plexer from:

    jimmckenna (9th January 2014)

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