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Operation
TM-1400 Series Progressive Scan Shutter Cameras
FIGURE 8. Pulse Width Async Shutter Timing
3.5.2 Internal Shutter Speed Control
The video signal starts with internal VD. The camera operates the reset and shutter in the same way as
the external pulse width control mode. When the external VINIT pulse is applied, internal VD is latched
to H
D and the internal VD is delayed to set up the shutter speed period. The shutter speed is controlled
by the dial switch from “1” to “8.” Video output timing starts right after the internal VD and single
shots, FDV is output at the internal VD timing.
EXT. VINIT (Pulse width control)
HD
INT. VD after trailing edge of EXT. VINIT
Discharge
Transfer Gate
FDV
Analog Video Sync
Exposure time set by pulse width
13H
Vsync
No-Delay Shutter
EXT. VINIT
HD
INT. VD with shutter speed control
Discharge
Transfer Gate
FDV
Analog Video Sync
Exposure time set by shutter speed
13H