2-1 Control Panels
Chapter 2
Location and Function of Parts
2-18
Chapter 2
Location and Function of Parts
0
CHROMA (chrominance) PHASE knob and
PRESET/MANUAL switch
The switch makes the selection described immediately
below. When it is set to MANUAL, you can use the
knob to adjust the chrominance phase (the phase
difference from a burst signal).
PRESET: Regardless of the position of the knob, the
chrominance phase is set to the reference value.
MANUAL: You can adjust the chrominance phase in
the range ±30˚.
!¡
SYNC knob
This adjusts the output signal sync phase with respect
to the input reference signal to this unit, in a range of
±15
µ
s.
Use this adjustment when the output phase of this unit
is not accurately aligned with the reference signal
phase, or when carrying out special effects editing with
this unit and other VTRs connected to a switcher or
other equipment.
!™
SC (subcarrier) knob
This adjusts the output signal subcarrier phase with
respect to the input reference signal to this unit, in a
range of ±200 ns.
For editing with composite signals, use this adjustment
when the output phase of this unit with respect to the
phase of the reference signal is not accurately aligned
with the subcarrier phase. This adjustment does not
affect the output SCH (subcarrier - sync) phase, which
remains constant.
!£
REC (record) INHIBIT switch
When this switch is in the ON position, the REC
INHIBIT indicator in the lower control panel lights,
and recording on tape is no longer possible.
!¢
KEY INHIBIT switch
When this switch is in the ON position, the KEY
INHIBIT indicator in the lower control panel lights,
and the buttons in the upper control panel and lower
control panel specified by the setting of extended
menu item 118 are disabled.
!∞
CAPSTAN LOCK switch
For playback and editing, this switch selects the
capstan lock mode.
For DNW-A75
2FD: The capstan servo locks every two fields.
• There may be a color framing difference between
the tape playback output and the reference signal
selected by the OUT REF switch.
• For assemble editing, there may be a color
framing discontinuity at edit points.
During playback of a tape recorded with a
composite signal as source, there may be a
horizontal shift (H shift) of the image. (When
extended menu item 712 is set to ON.)
4FD: The capstan servo locks every four fields.
• There is no color framing difference between the
tape playback output and the reference signal
selected by the OUT REF switch.
• For assemble editing, color framing continuity at
edit points is assured.
During playback of a tape recorded with a
composite signal as source, no horizontal shift (H
shift) of the image occurs.
Select this position for editing and playback of
composite signals when video phase continuity at
edit points is required, or for A/B roll editing.
8FD (625/50): This position is not normally used in
a 525/60 system.
If you select this position in a 625/50 system, the
tape playback output is subject to virtual color
framing, frame-locked to the reference signal
selected by the OUT REF switch. (This unit is not
subject to color frame locking to the reference
signal.)
For DNW-A75P
2FD/4FD: The capstan servo locks every two fields
(2FD)/four fields (4FD).
• There may be a color framing difference between
the tape playback output and the reference signal
selected by the OUT REF switch.
• For assemble editing, there may be a color
framing discontinuity at edit points.
During playback of a tape recorded with a
composite signal as source, there may be a
horizontal shift (H shift) of the image. (When
extended menu item 712 is set to ON.)
8FD: The capstan servo locks every eight fields.
• There is no color framing difference between the
tape playback output and the reference signal
selected by the OUT REF switch.
• For assemble editing, color framing continuity at
edit points is assured.
During playback of a tape recorded with a
composite signal as source, no horizontal shift (H
shift) of the image occurs.
Select this position for editing and playback of
composite signals when video phase continuity at
edit points is required, or for A/B roll editing.
