1-5
PDW-700/V1 (E)
At the same time, various control signals are controlled by
the AT-177 board via I/O Expander (IC3, IC4, IC67).
All volumes are controlled electronically, and the level
adjustment is adjusted from the menu.
The main functions of IC800 are the down-conversion HD
to SD, the conversion 720 to 1080 for VF output, and the
VF DETAIL generation processing digital ECN
processing.
The camera main signal of the SD system is output to IC1000.
After performing the multiplex and parallel-serial
conversion on the character signal, audio signal, and the
ancillary signal in IC1000, the HD signal and SD signal
output from IC800 pass through IC (IC1112, IC1113) and
are output to SDI1 and SDI2 connectors as the HD-SDI
and SD-SDI signals. After another system performs scaling
in IC1000 through the SDRAM (IC1309), the HD signal
output from IC800 passes through the D/A converter
(IC1518) and the video signal is sent to the LCD display.
The HD signal output from IC600 is sent to the recording
system (DVP-45 board) through multiple character signals
in IC1000. After the signal from the RX-105 board on the
SDI input option and the SDI signal from the 50-pin I/F are
selected internally in IC1000, the signals are separated into
the video signal, audio signal, and the ancillary signal, then
sent to the recording system (DVP-45 board).
* :The main functions of IC800 are the down-conversion HD to SD, the
conversion 720 to 1080 for VF output, and the VF DETAIL generation
processing digital ECN processing. The camera main output of the SD
system is output to IC1000.
1-2-2. CCD Block
PA-342/PA-342A/PA-343/PA-343A/PA-344 board
The CCD drive pulses that are supplied from the TG-260
board are amplified so that these pulses can drive the CCD
imagers directly (IC2: H Driver). On the other hand, the
CCD output signals are amplified approximately two times
and input to IC10. The video signal is drawn by the co-rel-
ated dual sampling inside IC10 and GAIN UP of 0 to 12
dB is performed by the internal GAIN AMP. In addition,
the differences in the CCD sensitivity are adjusted by
adjusting GAIN. In addition to the above operations, the
temperature that is detected by the temperature sensor
(IC4) is converted to the voltage data and is sent to the AT-
177 board via the DCP-44 board.
TG-260 board
The pulses that drive the CCD imagers and the pulses that
are used for sample-and-hold of the CCD output signals
are generated by IC8 and are sent to the DR-617 board.
These pulses are generated from the 74 MHz clock in
synchronization with the HD VD signal input from the
DCP-44 board. In addition, the TG-260 board has an
interface circuit with the optical filter.
DR-617 board
The CCD drive pulses input from the TG-260 board and
the sample-and-hold pulse are latched and output to the
PA-342/PA-342A/PA-343/PA-343A/PA-344 boards. In
addition, the DR-617 board has the V driver of CCD.
The CCD V sub voltage and CCD sensitivity adjustment
data are recorded in the EEPROM (IC20).
1-2-3. Video Signal System
DVP-45 board
1. Baseband/Video signal processing system
<Recording system>
The component parallel digital video signal supplied from
the video circuit of the DCP-44 board is input to LVIS
(IC400) of the DVP-45 board.
Signal pre-processing such as the filtering and scaling is
performed in this system.
<Playback system>
The playback digital video data is loaded from LVIS
(IC400) and sent to the DCP-44 board via the MB board as
the component parallel digital video signal.
The component parallel digital video signal sent to the
DCP-44 board is distributed to each path of HD/SD-SDI,
VF, COLOR-LCD, and down-conversion and encoding to
the composite video signal are performed according to the
setting.
2. Video compression signal processing system
<Recording system>
The recording digital video signal that has undergone
signal processing on the DVP-45 board is sent to MPEG2-
VIDEO Codec (TORINO: IC1000, 1200, 1400) and
compressed to the MPEG-2 VIDEO format.
The compressed digital video data is sent to PIER G4
(IC1900) and written to PIER_SDRAM (IC1901 to IC1904).
The recording digital video signal is encoded to MPEG4-
VIDEO format in LVIS (IC400) at the same time and
generated as the Proxy video data.
The generated Proxy video data is sent to PIER G4
(IC1900) and written to PIER_SDRAM (IC1901 to IC1904).
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