Instructions for KDPC Firmware EPROM Update
  1. **IMPORTANT**      There are STATIC SENSITIVE circuits and components inside the KDPC unit.
    If available, use a grounding strap! In any case, AVOID TOUCHING any components on the internal circuit board!

  2. **IMPORTANT**     Disconnect the KDPC unit from the AC power, and disconnect thermocouples and other cabling connected to the unit.

  3. Remove the four screws on the top and bottom edges which hold the faceplate to box.

  4. The faceplate, together with the circuit board may now be removed from the box, with wires to the AC power connector left attached.

  5. Turn the faceplate face down so the circuit board is exposed, and use an Allen Wrench to remove the four screws holding the circuit board to the faceplate.

  6. Remove the faceplate and turn the circuit board over so the components are exposed.

  7. Locating the EPROM chip:

    The EPROM chip will have a label with the markings KDPC 1.x on it. If not, it is the socketed chip to the RIGHT of the largest chip (40 pins) on the board and is immediately to the left of another 28-pin chip of the same size. It is just below the transformer when the board is viewed with the thermocouple and other connectors towards the bottom.
    Refer to the diagram at right --->


  8. Insert a small, flat-bladed screwdriver between the EPROM chip and the socket, gently pry the EPROM out of the socket. Note the location of the notch on the top edge of the chip, as the new EPROM chip must be oriented this way when inserted into the socket.

  9. Look at the pins of the update EPROM, and ensure that none are bent or mis-aligned. Place the update EPROM gently on the socket with the notch on the chip oriented towards the top, and ensure that ALL pins are over the socket, and none are mis-aligned! Firmly press down on the chip, seating it in the socket.

  10. **IMPORTANT**      Check one more time that the EPROM chip is correctly oriented and firmly seated in the socket with the notch towards the top of the board, and that no pins are bent or mis-aligned!
    If the chip is backwards, or pins are bent or mis-aligned, damage may result to the chip and/or the circuit board!

  11. Screw the faceplate and circuit board together using the four allen-head screws. Manoeuver the faceplate back into the box, and secure the faceplate to the box with the four philips-head screws.

  12. Reconnect the thermocouple cable, Switching Unit cable, PC Serial cable and the AC power cable.

    Power up the KDPC unit, wait till the display stabilizes, then while HOLDING the STOP-RUN switch in the STOP position, press and hold the other 3 push-buttons simultaneously. A message will appear saying to hit RUN to clear the memory. RELEASE the STOP switch FIRST, then RELEASE the other 3 buttons. Click the RUN button to clear all memory and re-initialize KDPC. If you another screen comes up on the LCD because the button press sequence was incorrect, RELEASE ALL buttons, press the STOP-RUN switch to the STOP position and start again.
    NOTE: This clears ALL memory and re-initializes the KDPC unit. You may now re-enter any profiles either manually or via the PC setup software.

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