The Reset Mode (3V) Video Out - Sony XC-7500 Operating Instructions Manual

The RESET mode (3V) video out

The output mode is compatible with 2I only.
Normal-speed
(The S7-2 switch on the SG-235 board: ON)
The video signal is output at 3 V after the trigger pulse is
input. Set this mode when the 1 V (31H) output from the
trigger is too fast for the image processor to capture an
image.
The trigger pulse input polarity is set with the S5 switch on
the SG-235 board. The WEN pulse output polarity is set
with the S7-4 switch on the SG-235 board.
2 µs to 10 ms (TTL)
Trigger pulse
31 H 1 ⁄ 60 s
Video output 1
ODD
V sync signal
Video output 2
ODD
WEN pulse
(–1 V)
WEN pulse
(0 V)
Timing chart for RESET mode (3V) video signal output
Trigger pulse interval:over 4 V
1 ⁄ 60 s 1 ⁄ 60 s
Video signal
EVEN ODD EVEN
EVEN ODD EVEN
High-Speed
The shutter speeds compatible with this function are
1/10000 to 1/100000 sec. To set to high speed, set the S7-5
switch on the SG-235 board to ON. You can also set the
trigger pulse width (T2).
2 µs to 90 µs (TTL)
Trigger pulse
T T
2 3
T
1
31 H 1 ⁄ 60 s
Video output 1
ODD
V sync signal
Video output 2
ODD
WEN pulse
(–1 V)
WEN pulse
(0 V)
T1: Set with the S6 switch on the SG-235 board.
T2: Set externally (T2 < T1).
T3: Exposure duration
Timing chart for high-speed RESET mode (3V) video signal
output
Trigger pulse interval:over 4 V
1 ⁄ 60 s 1 ⁄ 60 s
Video signal
EVEN ODD EVEN
EVEN ODD EVEN
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