Sony DNW-A75 Maintenance Manual page 237

(7) SDTI (SX) Output System (Option) (DPR-119 Board/BKNW-118)
SDTI (SX) output processing is performed on the DPR-119 board (BKNW-118).
The video signal data and audio signal data that are output from the DPR-118 board as SDTI (SX) output
signal data are packed by the video and audio data pack blocks on the DPR-119 board.
The packed signal data is passed through an SDTI (SX) interface block and converted from parallel to
serial. The converted signal data is then output from the connector panel as the SDTI (SX) output signal.
(8) SDTI-CP Output System (Option) (DPR-150 Board/BKNW-124)
SDTI-CP output processing is performed on the DPR-150 board (BKNW-124).
The video signal data output from the DPR-118 board as SDTI-CP output signal data is performed a
transformation coding (transforms a IB stream into an I only stream) by the transcode block. The video
signal data is converted to MPEG stream by SX-to-MPEG block. The converted video signal data is send
to the SDTI-CP pack block.
The audio signal data is send to the SDTI-CP pack block through the audio I/F block.
The video signal data and audio signal data input to the SDTI-CP pack block are packed to the SDTI-CP
format. The packed signal data is then output from the connector panel as the SDTI-CP output signal after
converting from parallel to serial.
On the DPR-150 board, SYS3 CPU is mounted for controlling.
SYS3 CPU used RISC CPU, and the operating clock is 40 MHz.
Communication between SYS3 CPU and SYS2 CPU (SS-83 board) is performed via the inner dual port
RAM of SYS3 CPU.
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DNW-A75/A75P