Cause : PIN is missing comes when the synchronization or positioning technology functions have been activated without an authorization being present (PIN).

This fault can only be cleared by putting in the correct PIN at U977.01 and U977.02 and switching the power off and on again, or by disabling the technology functions (put U953.32 = 20 and U053.33 = 20).

1. Deactivate synchronization or positioning .
2. Enter the PIN (U2977).
3. If technology functions are inserted in the time slots without enabling the technology function through the PIN, the message F063 is generated.