Sony XC-ST51 Technical Manual page 18

Setting the shutter speed using DIP switches
HD/VD input
• Continuous HD input/Single VD input
External trigger shutter operation
1
100 µ sec to 250 msec
Trigger* 1
Exposure time (Te)*
External HD* 1
External VD* 1
(Single VD)
T: T=10 msec to 110 msec*
Video out
WEN
*1 This is an external input signal. Make sure to input
both HD and VD signals in this case. Input the
signal so that the VD phase aligns with the HD
falling edge.
*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. (During this period,
if you input VD signals continuously, an image
will be output.) 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.
XC-ST51/ST51CE
XC-ST50/ST50CE
XC-ST30/ST30CE
Trigger pulse width*
2
4
1
250 H (EIA)
293 H (CCIR)
*4 Input the external VD within the period of 10 msec
Note
Make sure that the trigger signal and the VD signal
make up a pair.
An image is not output correctly when the next trigger
is input before the image for the previous trigger has
been output.
Mode transition state
External input
inhibition area
Normal operation* 3
(50 msec)
3
to 110 msec after the trigger rising edge (1 and 2
in the figure). There is no guarantee of operation
for any other input. If an invalid signal is input, the
input is changed to a valid signal, and after several
V signals, normal operation resumes.
Mode Settings
External trigger
shutter operation
2
Exposure time
(Te)* 2
Min.10 msec
2
250 H (EIA)
293 H (CCIR)
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