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21 mode setting, 4 input the external vd within the period of 10 – Sony XC-HR300 User Manual

Page 21

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21

Mode Setting

For setting the shutter speed using DIP switches

HD/VD input

• Continuous HD input/Single VD input

*1 This is a signal input from outside. 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 14.

*3 The normal operation state is carried out when the

trigger pulse width is 1/3 s or more. The trigger
falling edge restores the external trigger shutter
operation. In this case, the area between the falling
edge of a trigger pulse and the subsequent 50 ms
period is an external trigger input inhibition area.
There is no guarantee of operation for any triggers
input in this period.

1

1

2

2

*4 Input the external VD within the period of 10

ms to

75 ms after the trigger rising edge (1 and 2 in
the figure). There is no guarantee of operation
when any other input is selected. If an invalid
signal is input, the input is changed to a valid
signal, and after several V signals, normal
operation will resume.

*5 Video out 2 is output only in the 2I mode.

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 is
output.

External trigger shutter operation

Normal operation*

3

Mode transition state

External input

inhibition area

(50 ms)

External trigger

shutter operation

Exposure time (Te)*

2

Exposure time
(Te)*

2

Trigger pulse width*

3

T: T=10

µ

s to 75 ms*

4

312.5 H (2I mode)
625 H (1N mode)

Trigger*

1

External HD*

1

Video out 1*

5

Video out 2

WEN

External VD*

1

(Single VD)

min.10 ms

2

µ

s to 250 ms