Explanation Of Block Diagram - Optoma EX785 Service Manual

Delta Elec. Inc. DP-3638/DP-7606

2-14. Explanation of Block Diagram

Input signal processing
RGB(1,2) & Component & VIDEO and S-VIDEO .
The RGB(D-sub15x2 or 5BNC) and COMPONENT input signals are switching output to
ADC front end(AFE1000) by EL4342. After these signals and VIDEO, S-VIDEO have been
converted into 10-bit digital signals of RGB/YUV each at the A/D converter (U507) , the
resultant signals are output to the scaler (U700).
Digital input system
DVI and HDMI
The DVI and HDMI signals input to HDMI receiver (U507). The signals are further
converted into 10-bit digital signals of RGB/YCbCr, and then output to the scaler (U700).
Output signals processing
RGB out(D-sub15 black) .
The RGB output signals pass through fromVGA1 only by analog switching Ics
(EL4342 and ADG659).
DDP2431 Image processing
− Auto-lock for Std, wide & black border
− Integrated 3D Video Decoder
− DynamicBlack™
− BrilliantColor™
− Dynamic & Anamorphic Scaling w/ Zoom
− 1D Keystone Correction
− Frame Rate Conversion
− Color Coordinate Adjustment
− White Color Temperature Adjustment
− Programmable Color Space Conversion
− Programmable Degamma & Splash
− Spatial-Temporal Multiplexing
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2010/01/04