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 A image "Dolby 3D color wheel board connections.") of the feedback circuit. Replace wire unit if damaged.

Spinning motor disconnected.

Check the connection (reference D image "Dolby 3D color wheel board connections.") of the spinning motor. Replace wire unit if damaged.

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.