Sony XDCAM PDW-HD1500, Руководство по обслуживанию

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9-6
PDW-HD1500/V1 (E)
FAM output
The playback audio data and the playback proxy audio data from the PIER SDRAM is sent to the FAM Accelerator
(IC1201) from PIER via the PCI BUS. They are sent to the i.LINK PHY (IC1) on the IF-1073 board on the HPR-23 board,
and then to the connector (CN100) on the NET-4 board via the harness from the connector (CN2). They are then output
from the i.LINK connector (CN1).
Network output
The playback audio data and playback proxy audio data from the PIER SDRAM are sent to the Ethernet interface IC
(IC1300) on the NET-4 board from PIER via the PCI BUS and the PCI bridge in PHOT (IC801) and the PCI bridge IC100.
Then, they are converted to the bit stream by the Ethernet interface IC and output from the NETWORK connector.
3. Sync Signal Processing System
The reference video signal input from the REF.VIDEO INPUT connector (CN6) on the VPR-99 board s transferred to the
SYNC SEP circuit for separating the sync signals. The separated sync signals are input into PHOT (IC801) on the HPR-23
board.
PHOT generates the following clock signals in synchronization with the separated sync signals or the extracted sync signals
from the reference video signal or from the SD/HDSDI input signal.
.
74.25 MHz/74.1758 MHz reference clocks
.
27 MHz reference clock
.
24.576 MHz (512 FS) reference clock
.
LCD display clock
With these reference clocks, PHOT generates sync timing signals such as HD, VD, and Frame, and supplies them to
devices together with the clock signals.
When no signals are input into the REF.VIDEO INPUT connector or SD/HDSDI INPUT connector, sync timing signals are
generated from the 74 MHz or 27 MHz clock of free-running oscillation.
4. System Control System
This unit mounts a RISC microprocessor (referred to as CPU: IC2601/HPR-23 board hereafter) as a system control CPU
compatible with a real-time OS “iTRON”, which provides the functions below.
PCI bus interface
The CPU is connected to PIER (IC2103)/FAM Accelerator (IC1201)/PHOT (IC801) on the HPR-23 board via the PCI bus
interface to control them and for mutual data transfer.
The CPU sends/receives data to/from the following devices through PIER.
.
Proxy Audio DSP (IC2001/IC2002)
.
LVIS (IC501)
.
MIKE (IC1202/ENC-107 board)
.
Optical DRIVE (DR-601 board)
Furthermore, the CPU also sends/receives data to/from the following devices through PHOT.
.
VAX (IC206)
.
Temperature sensor (IC1001)
.
A/D converter for DC power voltage detection (IC1004)
.
D/A converter for auto adjustment (IC1005)
.
REC/PB Audio DSP (IC1701, IC1702, IC1801, IC1802, IC1901)
.
TORINO (IC201, IC401, IC601, IC801, IC1001/ENC-107 board)