APQS Controller Board Replacement Procedure

1. Remove the screws holding the top plastic cover and hang the cover by the wires.
2. Unplug all the connectors from the controller board.
3. Remove the controller from the top of the machine using a 9/64” Allen wrench. Remember how the ground wire was attached to the unit.
4. Put on the new controller board, making sure that the ground wire is connected firmly.
5. Plug in all the connectors. (See the pictures below)
6. Arrange the cables and put back the top cover.

In case of any problem please call your dealer or Kasa Engineering Services at [phone].

CONTROLLER BOARD CONNECTORS

NOTE: On APQS machines the thread cutter connector is plugged on the two pins to the left of the rear control connector.