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1
A
TD
TEC
(10 TRACK)
EQUALIZER
T. BRAKE
B
SERVO
SD
Fig. 1.2.5 Multi-track jump
C
TEC
TZC
(TEC "SQUARED UP" )
(INTERNAL SIGNAL )
D
MIRR
MIRR LATCHED AT
TZC EDGES
SWITCHING PULSE
EQUALIZER OUTPUT
E
(SWITCHED)
DRIVE DIRECTION
F
Fig. 1.2.6 Track brake
10
1
2
t1
t2
50mS
t
2.9mS (4.10 TRACK JUMP)
5.8mS (32 TRACK JUMP)
LENS MOVING FORWARDS
(INNER TRACK TO OUTER)
REVERSE
Note : Equalizer output assumed to hava same phase as TEC.
2
3
GAIN UP
NORMAL
ON
OFF
OPEN
CLOSED
LENS MOVING BACKWARDS
FORWARD
CX-3057
3
4
Time
4
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