Sony XC-HR90 Technical Manual page 30

When set to Mode 2 (Reset mode)
Setting the shutter speed using trigger pulse width
External trigger shutter operation
Trigger 1
Shutter speed (Te)
Video out
1 H to 2 H
WEN
990 H (Binning OFF)
495 H (Binning ON)
1 This is an external input signal.

2 Shutter speed (Te)

Te = Trigger pulse width + 5 µsec
(The effective trigger pulse width for the external
trigger shutter operation is between 2 µs and 1/4 s.)
3 Normal operation is resumed when the trigger pulse

width is 1/3 s or more. The trigger falling edge
restores external trigger shutter operation. At this
time, the 50 ms 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.
2
4
Mode transition state
Normal operation 3
Trigger pulse width 3
4 The video out is started after 1 H to 2 H from the

trigger falling edge, then the image is output
synchronized with the WEN pulse rising edge.
Note
An image is not output correctly when the next trigger
is input before the image for the previous trigger has
been output.
Mode Setting
External input
External trigger
inhibition area
shutter operation
(50 ms)
Shutter speed
(Te) 2
1 H to 2 H 4
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