Chapter 2---System Description
RED_CH1 RED_CH2 RED_CH3 RED_CH4
GRN_CH1 GRN_CH2 GRN_CH3 GRN_CH4
BLU_CH1 BLU_CH2 BLU_CH3 BLU_CH4
HOR_CH1 HOR_CH2 HOR_CH3 HOR_CH4
VER_CH1 VER_CH2 VER_CH3 VER_CH4
IIC_CLK IIC_DATA IIC_INT
+5.1Vstby
+5.1V
+15V
4:1
VIDEO
MUX
and
BUFFERS
IIC
RED_VIC GREEN_VIC BLUE_VIC H_VIC V_VIC
/SEL_VIC
Figure 2-7. Quad Input RGB VIC
The same functions performed by the Standard RGBHV VIC are performed by the Quad Input RGB VIC. The description of operation and pinouts are the same as the Standard RGBHV VIC. One of four LEDs indicates which of the four RGB inputs is currently active.
HDTV YPbPr VIC
This color decoder video input card (YPbPr_VIC) is located on the back side of the projector and contains three BNC input connectors which can be used for two different inputs, YPbPr or GBR. This board converts these color component signals to RGB type video signals.
The following functions are provided by YPbPr_VIC:
•Video input and output buffers
•Conversion of color components signals to RGB video signals
•Separation of syncs from the Y/G input signal
•Hue, sharpness, gamma, and color adjustment
•Selection of RGB input or color component input
Model 200 Service Manual |
