Sony XC-ST30 Panduan Teknis - Halaman 19

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Halaman Cetak

Setting the shutter speed using DIP switches

No HD/VD input (Internal synchronization)

100 µ sec to 250 msec

Trigger*

Exposure time (Te)*

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

Exposure time (Te)*

T: T=10

sec or more*

sec*

250 H (EIA)

293 H (CCIR)

Mode transition state

Normal

operation*

Trigger pulse width*

*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)

Exposure time

(Te)*

T: T=10

sec or

more*