Circuit Description; Audio Signal And Tally Processing; Return Signal Processing - Sony HXCU-100 Service Manual

2-9. Circuit Description

SY-364 Board
The SY-364 board that contains a microcomputer SH2-DSP (IC808) controls the internal boards and
power supply, and performs settings for the system including camera. It also performs command commu-
nication with the camera and RCP.
Furthermore, this board enables LAN connection by the LAN controller that incorporates a microcom-
puter.
This board can install the optional Front Control Panel (HKCU-FP1) to control it.
This board has an HD/SD signal generator and performs genlock with the external reference and between
HD and SD signals. Thus it controls entire video signal phases. It also can select HD tri-level sync signal
or SD sync signal and output it.

[Audio Signal and Tally Processing]

. D/A-converts and outputs the MIC signal sent from the DPR-300 board.
. Selects and D/A-converts the intercom signals sent from the DPR-300 board, and sends them to exter-
nal circuits.
. A/D-converts the intercom signals and the PGM signal that are input to the unit, and sends them to the
DPR-300 board.
. R/G tally signal interface

[Return Signal Processing]

The SY-364 board can handle return signals HD-SDI, SD-SDI, and VBS, and converts them to the speci-
fi ed signals and sends them back to the camera.
. The HD-SDI signal phase is adjusted.
. The SD-SDI signal is up-converted to the pseudo-HD signal and its signal phase is adjusted.
. The VBS signal is digitized to a signal equivalent to the SD digital component signal, and is processed
in the same way as the SD-SDI signal.
2-14 (E)
HXCU-100