Beijer Electronics MT 230 Nautic Monitor EN - Manual (Page 26)

Interfaces and Functions
26 Beijer Electronics, MAEN956
9.1 Composite Video
Composite video is the format of the analog TV signal, before it is modulated
on a RF carrier (broadcast and/or television frequency). It is mostly in a standard
format like NTSC, PAL or SECAM. It is compound from three source signals,
called Y, U and V (together YUV).
Y represents the brightness of the picture and includes synchronization impuls-
es. Thus this signal alone can be used for the representation of a gray tone pic-
ture. U and V are carriers of the color information. It first from two to each other
orthogonal phases of the color carrier signal mixed to a signal, which color value
(chrominance) is designated. Therefore the signals Y and UV are mixed. Since
Y is a baseband signal and is mixed UV with a carrier, the developed signal equiv-
alent is to frequency divided multiplexing.
Function
Connection between a second video source and monitor for transmission of vid-
eo data e.g. for PIP (Picture in Picture “Split screen”) function.
Composite Video Connection
FBAS composite video connector (male):
Note:
Selection of videos source(s), synchronization, image position, window position
and other settings are accomplished via the OSD menu.
Pin Allocation Level Impedance Function
Inside Video signal FBAS Y -0.3 V-0.7 V 75 Ohm Combined video signal
brightness, color, sync
Outside Ground for C 0 V Signal amount
DVI/VGA signal 1
Composite
video signal 2