Video Input Cards - Hughes JVC Model 200 Service Manual

2.3.3 Video Input Cards

2-14
The four types of Video Input Cards that can be used with the
Model 200 Projector are:
•
Standard RGB Video Input Card, which is supplied with each
projector and is used for RGB standard formats
•
Optional Four Input RGB VIC used in a similar manner as a
switcher.
•
Optional HDTV VIC used for High Definition Television.
•
Optional Quad Standard Decoder VIC used for NTSC, PAL
SECAM and other composite sources.
Standard RGB Video Input Card (RGB_VIC)
The RGB Video Input Card (RGB_VIC) is located on the back side
of the projector. It has five BNC input connectors. It provides the
RGB and sync interface for the Model 200 projector.
The following functions are provided by the RGB VIC:
•
Video and sync interface for red, green and blue
•
LED indication
•
IIC serial bus interface
RED
GREEN
BLUE
HORIZ
VERT
B13
IIC_CLK
A13
IIC_DATA
A12
IIC_INT
A16
+5.1Vstby
Pin callouts are to P12, P14, or P18
B16
+5.1V
depending on which VIC slot is used.
B15
+15V
B14
-15V
Figure 2-6. Standard RGB VIC I/O
Video and sync interface for red, green and blue
The RGB VIC provides a high bandwidth interface for the three
color video signals. The video signals are routed to the Backplane
Board without any distortion or modification. The sync signals
(horizontal and vertical) are also directly connected to the
Backplane Board.
Chapter 2---System Description
B2
B4
B6
B8
B10
12
IIC
A1
A2
A3
Model 200 Service Manual
RED_VIC
GREEN_VIC
BLUE_VIC
H_VIC
V_VIC
/SEL_VIC
GND
GND
GND