SONY DMBK-R3008 Repair Manual

DMBK-R3007 SDI-22SDI-22 DMBK-R3007
SDI-22 Board (DMBK-R3007)
The SDI-22 Board (DMBK-R3007) is SDIF-2 DigitalTiming Generator
Audio Interface board for I/O RACK OXF-IO3000 of. Make the timing pulse and required clock signal from
OXF-R3 system.Clock bus.
This board is optional board for OXF-R3 (OXF-R3/24)(The original clock signals are transferred from I/O
system.LINK board (PIF-14 board).)
The following describes the function of the each block of
SDI-22 board.CPU controller
. Interface between I/O Link Host CPU and SDIF-2
RS-422 ReceiverInterface Block.
. Receive the SDIF-2 Balanced signal and convert to. Decode the address bus and make the control signal for
unbalance signal.each block.
. Make the control data from data bus.
DI IC (CXD8323Q)
. Decode the digital audio signal (SDIF-2 format signal) to
parallel data .
. Decode the Control bit information from SDIF-2 format
signal
. Transfer the Control bit information to CPU bus.
. One LSI can decode 4 channel SDIF-2 input signal.
Format Converter for DI section
. Convert from 24 bit parallel audio data to DI bus format
(8 bit Parallel bus).
Format Converter for DO section
. Convert from DO bus format (8 bit Parallel bus) to 24 bit
parallel audio data.
DO IC (CXD8324Q)
. Encode the digital audio signal (24 bit parallel data) to
SDIF-2 format signal.
. Attach the Control bit information to SDIF-2 format
signal
. Receive the Control bit information from CPU bus (to
attach the SDIF-2 signal).
. One LSI can encode 4 channel SDIF-2 output signal.
RS-422 Driver
. Transmit the Balanced SDIF-2 signal.
. Convert the Balanced signal from unbalance signal.
Control bit Interface
. Transfer the Control bit data from DI IC to the CPU bus.
. Transmit the Control bit data from CPU bus to DO IC.
4-244-24OXF-R3
OXF-R3/24