Sony XC-ST51 Technical Manual page 19

Setting the shutter speed using DIP switches
No HD/VD input (Internal synchronization)
1
100 µ sec to 250 msec
Trigger* 1
Exposure time (Te)*
4
Internal VD*
T: T=under 10
Video out
WEN
*1 This is an external input signal.
*2 The exposure time (Te) is determined by the
setting of the DIP switches.
For details, see page 12.
*3 Normal operation is resumed when the trigger
pulse width is 1/3 sec or more. The trigger falling
edge restores external trigger shutter operation. At
this time, the 50 msec after the falling edge of the
trigger pulse is an external trigger input inhibition
area. There is no guarantee of operation for any
trigger input in this period.
*4 The internal VD signals are output as long as there
is no external input and the HD/VD signal
input/output switch on the rear panel is set to INT.
XC-ST51/ST51CE
XC-ST50/ST50CE
XC-ST30/ST30CE
External trigger shutter operation
2
2 Exposure time (Te)*
T: T=10 sec or more*
5 m
sec*
m
1
2
250 H (EIA) 250 H (EIA)
293 H (CCIR) 293 H (CCIR)
Mode transition state
Normal
3
operation*
Trigger pulse width* 3
2
5
*5 An image is output when an internal VD signal
falls 10 msec or more after a trigger pulse rises
(2 and 3 in the figure). If the period from the
trigger rising edge to the internal VD falling edge
(T in the figure) is under 10 msec, it is not
defined whether the image is output for the
external VD falling edge or the image is output
for the next external VD falling edge. (1 in the
figure shows that the image is output for the next
internal VD). In this case, see WEN since the
image and WEN make up a pair. (The falling
edge of an internal VD signal is the same in phase
as the beginning of an equalizing pulse in a
SYNC V area.)
Note
An image is not output correctly when the next
trigger is input before the image for the previous
trigger has been output.
Mode Settings
External input
External trigger
inhibition area
shutter operation
(50 msec)
3
Exposure time
(Te)* 2
T: T=10 sec or
m
more* 5
3
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