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How to replace a circuit board (for boards CM129 and CM132)

  • Updated

For boards CM129 and CM132:

The board is located in the base of the table. It may be mounted at either the end or on the side. The photo shows an example of mounting at the foot end of the base.

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  1. Use the foot pedal to elevate your table as high as possible. If the table is stuck at the lowest height then refer to the next section for instructions to access from the bottom.
  2. Unplug the table.
  3. Remove the 6 screws that secure the lower section of plastic skirting to the base. Use tape or string to hold it up and out of your way.
  4. The board may be secured to the mount plate by four screws at the corners or it may have white plastic standoffs. To release the board fom the plastic standoffs use your fingernail to press in the fin that overhangs the edge of the hole so that you can lift that corner of the board. It is very important that standoffs be used when mounting the new board to protect the board.

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5. Your board has one of two part numbers on it. The number is in the corner of the board as indicated in the photo. Use the wire diagram that corresponds to your board to reconnect the wires.

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IF YOUR TABLE IS AT ITS LOWEST POSITION & THE HEIGHT FUNCTION DOES NOT WORK:

Since your table is stuck in the down position you will need to access the original board from underneath.

    1. Unplug the table
    2. Lay the table on its side
    3. Refer to the attached PDF to find the color wires that are highlighted in yellow. These are the wires for getting power into your new board, to the height motor, and to the pedal. Pull the plastic wire connectors only, not the wires themselves, and pull straight away from the board. Refer to the new board to see the type of terminal it is pulling off of.
    4. Lay the new board next to the original (because wires are very short) and plug each wire to the designated terminal of the new board, according to the diagram.
    5. Keep the table on its side. Make sure the board is not resting on metal and then plug the table in.
    6. Keep the table on its side but hold the cushions so they do not drag on the floor as you press the height pedal.
    7. When the height is at its maximum UNPLUG the table again.
    8. Follow the following instructions to replace the board.

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