Board; Mb-1257 Board; Tx-167A Board - Sony HDCU3500 Service Manual

6-1-10. LE-425 Board
The LE-425 board contains LEDs that indicate the status of power supply to the unit and the camera.
6-1-11. LE-427 Board
The LE-427 board contains LEDs on the front panel, indicating the camera number, optical signal receiving status, and
various states.
6-1-12. LE-429 Board
The LE-429 board contains an LED bar that indicates the unit status.
6-1-13.

MB-1257 Board

The MB-1257 board functions as an interface with the power module and each board.
This board contains a PCI Express hub, a clock distributor, and a fan control circuit.
6-1-14. NET-37 Board
The NET-37 board contains the LAN 1 connector (CN0201) and the LAN 2 connector (CN0202) for external
communication.
The NET PLD1 (IC001) detects the SFP module connected to the LAN 1 or LAN 2 connector, and then informs the
control microcomputer (AT-195 board) of the detected module through CN0104. In addition, this IC sends/receives IP
routing information to/from the connected system controller (such as LSM) through the network, and then informs the
control microcomputer (AT-195 board) of the IP routing information through CN0104. This IC also controls the network
with commands sent from the control microcomputer (AT-195 board) through CN0104 to transmit IP streams.
The NET1 PLD performs PTP communication with the connected PTP master through the network, and outputs the
generated video synchronization signal to the NET2 PLD (IC002). The NET2 PLD processes stream data using the
video synchronization signal from the NET1 PLD, and outputs the video synchronization signal to the VIF-75 board
through CN0101.
The NET2 PLD converts the SDI signal (sent from the TX-167 board through CN0102) to stream data, and then outputs
the stream data to the NET1 PLD. This PLD also converts the stream data from the NET1 PLD to SDI data, and then
outputs the converted data to the VIF-75 board through CN0102.
The NET1 PLD assembles stream data sent through the NET2 PLD as packet data for 10 G/25 G network communication.
This PLD also extracts stream data from received packets in network communication, and then outputs the extracted
stream data to the NET2 PLD.
6-1-15.

TX-167A Board

The TX-167A board is mounted in HDCU3500.
Main-line video signals
The image capture data that is transmitted from the camera is input to the VIF-75 board. The image capture data is then
sent to the TX-167A board through CN101 and CN103. The TX-167A board processes four SDI output signals and
video data to be sent to the VIF-75 board and the NET-37 board. Four DDR4 SDRAM ICs (IC2101, IC2102, IC2201,
and IC2202) are connected to the FPGA (IC1501) on the TX-167A board. This FPGA is equipped with the main-line
video processing function in addition to the timing adjustment function. When the HZCU-UHD35 option is provided,
HDCU3500/HDCU5500
6-2