Installation
D356 4 SM
6. Attach the FCU [A] to the controller box (x4).
7. Attach the VITS [B] to the FCU and controller box (x4)
8. Detach the MBU battery jumper [C] and reattach it at the "ON" position.
If the MBU jumper is not set to ON, this can cause SC819 or SC820 when the
main power switch is turned on. Also, when the main power switch is turned
off, fax memory will be cleared.
9. Press down on the MBU to confirm that it is seated correctly.
If the MBU is not attached correctly, this will cause SC672.
10. Connect the speaker harness [D] to the FCU (x1).
11. Check the FCU connection and confirm that it is secure.
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