Figure 6.7.14 Velocity Offset Adjustment; Figure 6.7.15 Fine Control Settling Adjustment - Fujitsu M2361A Customer Engineering Manual

h. Velocity Offset Adjustment (RV4)
CD
Connect the CNB-43 to one vertical input channel of an
oscilloscope and trigger with the negativ.e-going edge of this
signal.
GD
Connect the CNB-49 to the other vertical channel of the
oscilloscope.
CD
Execute the diagnostic routine mode 01 which issues repetitive
seek command between cyl.000 and cyl.006.
QD
Adjust the potentiometer RV4 so aR to get the following figure.
Figure 6.7.14 Velocity Offset Adjustment
c. Fine Control Settling Adjustment (RV5)
CD
Do the same procedures
CD ' "
G)
in RV4 adjustment.
CD
Adjust the potentiometer RV5 so as to get the following figure.
Figure 6.7.15 Fine Control Settling Adjustment
d. Access Time and Transient Adjustment (RV2, RV3)
CD
Connect the CNB-43 to one vertical input channel of an
oscilloscope and trigger with the negative-going edge of this
signal.
GD
Connect the CNB-49 to the other vertical channel of the
oscilloscope.
G)
Execute the diagnostic routine mode 02 which issues repetitive
seek command between cyl. 384 and cyl.640.
QD
Adjust the potentiometers RV2 and RV3 so as to
realiz~
following
figures.
B03P-4825-0002A ••• 02
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