9-2.
Signal Processing/Transmission System
9-2-1.
TX-146 Board
TX-146 board is used in this unit and base band processor unit BPU4000.
The main line signal that is superimposed by video signal and digital audio signal at MEM-147 board and the command
signal via MEM-147 board are superimposed, it is converted to serial electric signal. This serial electric signal is
converted electric to optic and it is sent to BPU4000.
Serial optic signal from BPU4000 is converted optic to electric, it separates return and command signals and is sent to
DPR-370 board.
9-2-2.
MEM-147 Board
In MEM-147 board, linear RGB signal that is processed at camera signal process LSI on the DPR-307 is compressed
at the IC901 and is sent to TX-146 board.
The utility system process of each Trunk/Prompter signal etc. are performed at IC201.
9-2-3.
DPR-370 Board
Black shading adjustment, RPN compensation (automatic compensation[APR]),black balance automatic adjustment
(ABB), shutter adjustment, Noise Reduction, aberration compensation and White/Gain adjustment are performed by R/
G/B signal input from CMOS block. The main line signal is sent to the MEM-147 board.
Analog VF signal, embedded audio and lens control except picture process are performed.
HDC4300
9-2
