Read Sony DCR-TRV900 Service Manual online
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3. MAIN SIGNAL CIRCUIT
3-1. MAIN IC Major Function Description
VFD (IC1501): Video Format Domain
This IC is equipped with the following functions.
(1) Video signal processing
(2) Video input signal selection
(3) Interface with the panel EVF
(4) Two pieces of 8 MB BRAM
SFD (IC1600): Signal Format Domain
(1) Compression of video signal
(2) Exchanging the audio signals
(3) Reduction of mechanism noise and wind hissing noise
TFD (IC1601): Tape Format Domain
This IC performs the signal processing that is required by the signal format
with which the signal is recorded on tape. The processing is concretely as
follows.
(1) T. B. C.
(2) E. C. C.
(3) De-shuffling
TRX (IC1900)
The video data is supplied from TFD to the TRX (IC1900) in the parallel for-
mat. Clock frequency of the parallel signal is replaced by the 40 MHz clock and
at the same time the parallel data is converted to the serial data in TRX.
BBI (IC1200): Base Band Input
This IC is the input IC of the composite video input signal that is supplied from
the LINE IN connector.
BIRDS (IC300)
This IC has the functions of sample-and-hold and AGC amplifier for the input
signal that is supplied from the CCD imager. The color bar signal that can be
selected using the menu, is generated by this IC.
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