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3
.
FUNCTIONAL DESCRIPTION
CONTENTS
3.
3.1
3.1
.
1
3
.
1.2
3.1.3
3
.
1
.
4
3.1
.
5
3
.
2
3.2.1
3.
2 .2
3.2.3
3.24
3.2.5
3 .2 .6
3.2 .7
3 .2 .3
3
.
2 .9
3 .3
3 .3
.
1
3.
3.2
3.4
3
.
4
.
1
3
.
4.2
FUNCTIONAL DESCRIPTION
OECODER SOARD A727 1.769.430
Supply vottage control
Digital signal pro,essing
Oigital filtering
Oigital/analog conversion
Level adjustment and headphones gain
SERVO BOARD A727 1.769
.
410
~icroprocessor
system
Signal processor
Disc motor control
Radial control
Focus control
Automatic gain controL (AGC)
Drawer motor system
Parallel remote control
Serial remote port RS422 (SMPTE IEBU)
CO-DRIVE SOARD 1
.
769
.
116
Laser current control
RF sIgnal amplification
SYNC SOARD 1.769 .440
MASTERISLAVE syncronization
Start on modulation
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