Sony DVW-A500/1 Service Manual page 151

Item number Item
904 FREEZE
CONTROL
FROM KEY
PANEL
905
AUTO FREEZE
CONTROL
906 STOP FREEZE
CONTROL
• SYS1 and SYS2
ROM Version1.20
and higher
Stop freeze opration
MODE (After)
MODE (Before)
STILL
(dynamic tracking on)
CAPSTAN drive
(includes shuttling up to 10
normal tape speed)
Reel drive
(includes shuttling over 10
normal tape speed)
• A "DT picture" is a freezed picture in noiseless DT playback mode. The picture freezes in frame mode when the dynamic
tracking is performing a frame operation. It freezes in field mode when dynamic tracking is not performing a frame
operation.
• A "non-DT picture" is a freezed picture in shuttle mode. A block pattern may appear in a non-DT picture, depending on the
circumstances.
Settable range
[momentary]
[0]
1 latch
[0] [disable]
1 MODE1
= auto release
2 MODE2
= release via stop
[0] [disable]
enable
1
TENSION OFF
STOP
DT picture
DT picture
DT picture
non-DT picture
non-DT picture non-DT picture
Function
Determines the freeze operation control by button
operations.
0: The picture is freezed only while the button is held down
1: The picture is freezed when the button is pressed, and
remains freezed when the button is released.
The freezed picture is cancelled when the button is
pressed again.
Button operations
• Freezing in odd or even (first or second) field is specified
by item 903. Distinction between the first or second field
is, however, follows that the distinction in the reference
signal.
Specifies the operation performed (condition for cancelling
still-picture mode) for the automatic freeze function.
The automatic freeze function detects sudden deterioration
(intrusion into unrecorded tape sections) of the channel
condition in dynamic tracking playback modes (VAR, JOG,
PLAY, SHTL), then freezes the picture.
0: The automatic freeze function is off
1: Freeze mode is automatically cancelled when the
playback conditions return to normal
2: Freeze mode is automatically cancelled when playback
is stopped.
• The freeze mode (field/frame) during the automatic freeze
function is set by item 903.
• The freeze mode is immediately cancelled under the
following conditions, no matter what the setting of this
item is:
When edit preset is on
When the VTR is in CUE UP mode
When the VTR is in REC mode
Enable or disables the stop freeze function.
STDBY OFF
DT picture
non-DT picture
non-DT picture
A-35
Appendix