CX-3164
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Fig.1.2.2 Timing chart for focus close operations
1.2.2 Tracking servo system
The main equalizer of the tracking servo consists of the digital equalizer block. The figure 1.2.3 shows the block diagram
of the tracking servo system.
Fig.1.2.3 Block diagram of the tracking servo system
E
F
LENS
130
129
PWM
TD
103
3
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13
TOP
TOM
IC301 BA5835FP
IC201 UPD63763CGJ
TE
AMP
A/D
DIG.
EQ
JUMP
PARAMETERS
CONTROL
FE controlling signals
FSS bit of SRVSTS1 resistor
RFOK signals
Output from FD terminal
A blind period
Search start
You can ignore this for blind periods.
The broken line in the figure is assumed in the
case without focus servo.
The status of focus close is judged from the statuses
of FSS and RFOK after about 10 mS.
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