Rosen Aviation 0700-006 : Video Distribution Amplifier - Manual (Page 5)

Rosen Aviation
Document Number: 101720 Revision: A
Date: 10/14/08
Template: 4.2.3-6-FM; Revision A; 16 May, 2005 Page 5 of 16
RGB source select
A switch that enables you to select between the available RGB video
inputs (sources A & B are available).
Auto gain control
(AGC) Takes composite video and adjusts the signal level to match known
standards. See Section 4.5.
Briefing active
discrete input Select switch that distributes a designated video input to all outputs.
This input can control both composite and RGB video briefings.
2.1. Block Diagram
Output 8
Output 7
Output 6
Output 5
Output 4
Output 3
Output 2
Output 1
Comp
osite Vi
deo Outp
uts
Composite video output
source select discrete
inputs
8
RGB video output source
select discrete inputs
3
Output 3
Output 2
Output 1
RGB Video O
u
tputs
Video
Distribution
Amplifier (VDA)
Briefing Active
Discrete Input
Source A
Source B
RGB Video In
puts
Figure 1 VDA block diagram
Source A
Source B
Source C
Source D
Comp
osite Vi
deo Input
s