+ Post New Thread
Results 1 to 10 of 10
Promethean Direct Support Thread, Spiking promethean board in Direct Support; I have a board that is at least 6 years old and is severely spiking. Ive tried a new PSU, ...
  1. #1

    Join Date
    Sep 2011
    Location
    Bradford
    Posts
    46
    Thank Post
    0
    Thanked 8 Times in 7 Posts
    Rep Power
    7

    Spiking promethean board

    I have a board that is at least 6 years old and is severely spiking. Ive tried a new PSU, the drivers are up to date, so barring environmental interference Im going down the route of knackered board. Is it worth replacing the electronics box on the back of the board or will the school have to bite the bullet and replace.

    All suggestions are welcome

  2. #2

    FN-GM's Avatar
    Join Date
    Jun 2007
    Location
    UK
    Posts
    15,952
    Thank Post
    886
    Thanked 1,700 Times in 1,477 Posts
    Blog Entries
    12
    Rep Power
    448
    How do you mean spiking? Do you mean when you draw a stright line it goes all over the show? If so that is usally caused by static. Unplug the board for an hour and plug it back in and see if it works. If so that will be the issue.

  3. #3

    Join Date
    Sep 2011
    Location
    Bradford
    Posts
    46
    Thank Post
    0
    Thanked 8 Times in 7 Posts
    Rep Power
    7
    Basically the teacher is attempting to write on the board but the cursor goes haywire.

  4. #4

    FN-GM's Avatar
    Join Date
    Jun 2007
    Location
    UK
    Posts
    15,952
    Thank Post
    886
    Thanked 1,700 Times in 1,477 Posts
    Blog Entries
    12
    Rep Power
    448
    Yep thats it usualy static. Try what i said in post 2

  5. #5

    Join Date
    Sep 2010
    Posts
    228
    Thank Post
    3
    Thanked 36 Times in 33 Posts
    Rep Power
    15
    Disconnecting a board powering it down, reconnecting it and powering it back up sometimes clears it - I've never waited an hour.

    If its on a usb / serial extension try it without - extensions are a common cause of the problem.

    Re flashing the firmware can also help NOTE: if it goes wrong you will need a new controller.

  6. #6
    SneakyBeaky's Avatar
    Join Date
    May 2010
    Location
    Gosport
    Posts
    141
    Thank Post
    7
    Thanked 22 Times in 19 Posts
    Rep Power
    15
    When this has happened on two of my boards a firmware update has fixed it.

  7. #7
    chazzy2501's Avatar
    Join Date
    Jan 2008
    Location
    South West
    Posts
    1,782
    Thank Post
    213
    Thanked 263 Times in 213 Posts
    Rep Power
    67
    excessive water can make them unpredictable! (overly keen cleaner) (dehumidify)

    also nice to have an antistatic foam cleaner around to, I use Amberclens.

    edit: also have you tried a different pointer?
    Last edited by chazzy2501; 19th March 2012 at 11:09 AM.

  8. #8

    bossman's Avatar
    Join Date
    Nov 2005
    Location
    England
    Posts
    3,913
    Thank Post
    1,188
    Thanked 1,063 Times in 754 Posts
    Rep Power
    329
    @LeeBirdptinstalls:

    All our Promethean boards are over 6 years old and we used to suffer from spiking on one or 2 of them, one thing we did find is that if you placed ferrite rings which clip on to the power cables at either end this eradicates the static and so stops the spiking.

    Something similar to this below:

    Clip On EMI RFI Noise Ferrite Core Filter for 9mm Cable | eBay

  9. #9

    Sylv3r's Avatar
    Join Date
    Jul 2005
    Location
    Co. Durham
    Posts
    3,207
    Thank Post
    372
    Thanked 377 Times in 335 Posts
    Rep Power
    148
    When we've seen this in the past either a firmware upgrade or try and move the mains power cable as far away from the board as possible - we had a couple of installs where the transformer was actually behind the board which caused spiking.

  10. #10

    Join Date
    Sep 2011
    Location
    Bradford
    Posts
    46
    Thank Post
    0
    Thanked 8 Times in 7 Posts
    Rep Power
    7
    Thanks all for the input. Ive tried everything suggested but......FAIL!!! The board will have to be retired forthwith......
    I will keep all your suggestions in mind for any future problems

    Thanks again

SHARE:
+ Post New Thread

Similar Threads

  1. Calibrating Promethean boards
    By mrwobbly in forum Hardware
    Replies: 6
    Last Post: 21st January 2008, 04:29 PM
  2. Replies: 20
    Last Post: 28th June 2007, 10:02 PM
  3. Different versions of Promethean boards
    By beeswax in forum Hardware
    Replies: 37
    Last Post: 16th January 2007, 01:19 PM
  4. Pupils PDA controlling Promethean Board
    By cinewlyn in forum Windows
    Replies: 9
    Last Post: 14th December 2005, 10:33 AM
  5. Problems with Promethean boards and USB ports
    By tosca925 in forum Windows
    Replies: 12
    Last Post: 16th November 2005, 11:14 AM

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •