Wrong 3D settings on the Dolby 3D content server.

Check the 3D settings on the Dolby 3D content server. See Dolby documentation. The locking frequency for the Dolby 3D color wheel must be in the range of 48 and 72 Hz. You can verify the locking frequency via the Communicator software menu “3D settings - integrated color wheel”.

Feedback circuit of the spinning motor disconnected.

Check the connection (reference 24 image) of the feedback circuit.

Spinning motor disconnected.

Check the connection (reference 25 image) of the spinning motor.

Malfunction Dolby 3D color wheel board.

Replace the electronic board of the Dolby 3D color wheel unit.

Malfunction spinning motor

Replace the whole Dolby 3D color wheel unit. Send the malfunction unit back to Barco. For correct instructions see installation manual of the Dolby 3D color wheel unit.