Fujitsu MJA2500BH Maintenance Manual - Page 71
Physical sector servo configuration on disk surface, C141-E293
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4.7 Servo Control Servo frame (228 servo frames per revolution) CYLn + 1 W/R Recovery Servo Mark Gray Code CYLn W/R Recovery Servo Mark Gray Code EVEN1 ODD EVEN2 Post code PAD CYLn - 1 (n: even number) W/R Recovery Servo Mark Gray Code Diameter direction Circumference Direction Erase:DC erase area Figure 4.6 Physical sector servo configuration on disk surface C141-E293 4-15
4.7
Servo Control
C141-E293
4-15
Circumference
Direction
Erase: DC erase
area
CYLn + 1
CYLn
CYLn – 1 (n:
even number)
W/R Recovery
Servo Mark
Gray Code
W/R Recovery
Servo Mark
Gray Code
W/R Recovery
Servo Mark
Gray Code
EVEN1
ODD
EVEN2
Post code
PAD
Diameter
direction
Servo frame
(228 servo frames per revolution)
Figure 4.6
Physical sector servo configuration on disk surface