D619 12 SM
3. Remove the speaker unit and set it on a flat clean surface.
4. Disconnect the bottom edge of the IPU (
x1, x3).
5. Disconnect the FCU bracket ( x3).
6. Pull the FCU bracket [B] to the left to disconnect it from the interface bracket on the right, and
then remove it.
7. Set the FCU bracket on a clean flat surface.
8. Follow either procedure below to re-install the FCU and speaker unit with one or two G3
interface units.