Sony DXC-990 Manual page 41

Strobe function
• The video signal outputs an odd field image first then an even field image, making for easy operation
when connecting the camera with a Frame Grabber Board.
• The timing of the WEN pulse and video signal acts as a connection with a Frame Grabber Board.
• The strobe function is designed for dark lighting conditions with a flash. The strobe function does not
work under bright conditions such as outdoors.
• It is possible to monitor the image just before a flash is emitted.
• The output signal is an image exposed for a few frames.
• Keep 'CCD MODE' setting to 'FRAME'.
• Do not use automatic function, such as AGC, CCD IRIS, AWB, ATW, Flicker canceller, etc.
• It is not possible to change the electronic shutter speed.
Timing chart.
WEN 1
VD
*In the case of flashing in an even field
TRIG IN
WEN
XSG
XSUB
Video
ODD
*In the case of flashing in an odd field
TRIG IN
WEN
XSG
Video
ODD
(1+ ) FRM
ODD
EVEN
(1.5+ ) FRM
EVEN ODD EVEN
EVEN ODD EVEN
A flash is emitted during this period.
ODD EVEN ODD
(0.5+ ) FRM
ODD
EVEN
(1+ ) FRM
ODD EVEN ODD
DXC-990/990P, DXC-390/390P Sales Manual – 39
12. Technical Appendix
EVEN ODD EVEN
EVEN ODD EVEN
:0~0.5 FRM
ODD
ODD