Recorder Signal Processing - Canon ELURA10 A Service Manual

3-3 Recorder Signal Processing

IC1001
DIC4
(ELURA10)
A DATA
IC4003
B DATA
SIC
(ELURA20
MC)
IC2100
AV JACK
VIF2
S TERMINAL
IC1502
CVF
EVF
LCD
DRIVER
LCD
< VIC2 >IC2301
• Includes an A/D converter for analog line input plus a Y/C separation filter.
• D/A output for VRP2 control is added.
• A/B DATA: input in camera mode. B DATA is output and A DATA is input at playback. (DIC4 digital effect circuit is used at
playback.)
The video data and signals input to VIC2 are subjected to digital VTR format signal processing. Audio data, subcode data and
ITI data are also created at VIC2, and these signals are output to VRP2 as 41.85 Mbps data of DV format.
• DIF : After conversion to digital data conforming to IEEE1394 standard, the data is output at DV terminal. At digital input, the
data enters VIC2 signal processing circuit via the opposite route.
< VRP2 >IC2000
• Recording data of 41.85 Mbps output from VIC2 is amplified at VRP2, and is recorded on magnetic tape while undergoing head
switching of CH-1, CH-2 with a switching pulse. At playback, the head output signal is amplified and sent to VIC2.
< VIF2 >IC2100
• Related parts are reduced in comparison to conventional VIF, and a sync separation function for analog line input is added. Y
and C signals sent from VIC2 are output as Y, C signals for S terminal (DU-300) and composite video.
At line input, input signals undergo level adjustment, sync signal separation and are output to VIC2.
< EVF DRIVER >IC1502
EVF driver, formerly mounted on CVF P.C.B., has been moved to MAIN P.C.B., and displays on CVF LCD an image based on R,
G, B and sync signals from VIC2.
SDRAM
SDRAM
INTERFACE
VIDEO
COMPRESSION
INTERFACE
/DEMOD.
D/A A/D
BUS
R,G,B
Fig. 2-6
2-9
ELURA20 MC A, ELURA10 A
CAHPTER 2. TECHNICAL DESCRIPTION
DIF
INTERFACE
REC/PB IC2000
ECC
PROCESS VRP2
IC802
AUDIO
INTERFACE
IC2301 VIC2
DV
TERMINAL
VIDEO
HEAD
AV JACK
A/D
D/A