Panasonic AV-HS400AE - Manual (Page 71)

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4. Input/output signal settings
4-5. Setting the sync signals
The sync signals to be used by the system can be selected.
External sync: For synchronization with an external sync signal (gen-lock).
The reference input signal is looped through and output.
BBST: Black burst signal (vertical phase of 0H)
BBAD: Black burst signal
( Vertical phase of 90H when the 9.94i or 9.94p format is selected;
vertical phase of 7H when the 0i or 0p format is selected)
TRI: Tri-level sync signal (vertical phase of 0H)
This can be selected when HD format signals are supplied.
Internal sync: For synchronization with an internal reference signal (INT).
The REFOUT signal (black burst signal) is output from the two reference connectors.
1 Press the [FUNC] button to light its indicator, and press the [IN/OUT] button to display the IN/OUT menu.
2 Turn [F1] to display the Ref sub menu.
<Menu display>
Ref Sync↓ BBSetup GenLock
3/15 BBST 7.5IRE Locked
BBAD
TRI
INT 0IRE UnLock
3 Turn [F], select the sync signal using the Sync item, and press the [F] switch to enter the selection.
An asterisk (

) appears at the left of the reference signal currently selected.
4 Turn [F3] to select the setup level of the black burst signal in the internal synchronization mode using the
BBSetup item.
This setting takes effect when the video system is 9.94i or 9.94p.
The setup level is fixed at 0 IRE when the system is 0i or 0p.
The genlock status is displayed in the GenLock item.
Locked: Synchronized with the external sync signal or internal reference signal.
UnLock: Not synchronized with the external sync signal or internal reference signal.