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Module operation mode selection – Grass Valley 8981FS User Manual

Page 26

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20

8981FS Instruction Manual

8981FS Digital Frame Synchronizer Module

Module Operation Mode Selection

Access the Mode display shown in

Figure 10

to perform the following

(refer to Module Operation Modes

on page 10

).

Choose between Frame Synchronizer or Delay mode.

Note

If a sync reference signal input is not detected by the 8981FS, the module will
automatically function as a fixed video signal delay. In this case, the Operating
Mode indication in the display may read “Frame Synchronizer” when the
module is actually functioning in delay mode.

If in Frame Synchronizer mode, choose the output that will be active if
the input signal is lost—pass the input channel or force the output to
black.

Pass or blank switching line and vertical interval data (see

Switching

Line Handling

and Vertical Interval Blanking

on page 14

).

Select EDH error detection mode (see Input Signal EDH Detection

on

page 12

).

Figure 10. Frame Sync/Delay Mode Selection Display

Use

This
Link

Not available

in Delay Mode

Not available with

625 input signal