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3-30
Section 3 — Functional Description
LEDs:
■ +5V present
■ Video present (reference video)
■ Lock (this indicates only that the first phase lock loop is locked; it does
not indicate that the entire system is locked
■ Rear module power LEDs
■ Tally Control Module CPU running
■ ±10V present
Inputs:
■ Analog reference video
Outputs:
■ Two clocks
■ Sync pulses
Processors Used:
■ HOS processor
Frame Store (064814)
The Frame Store will store up to 8 fields of video and 8 fields of key. The
inputs are on aux buses 2A (video) and 2B (key). There are two sets of
identical video and key outputs, one set goes to the reentry module XX for
use in the Model 2200 and the other set goes to Serial Output Module 2 for
external use. The Frame Store Module has all of the circuitry for doing all
the modifying of the stored video and keys.